2014 Vol. 35 Issue 6
2014 Vol. 35, No. 6
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2014, 35(6): 1-8.
doi: 10.16779/j.cnki.1003-5508.2014.06.001
Abstract:
The investigation was made of the ocurrence regularity and integrated control of Z. schinifolium rust in Ya'an area from 2010 to 201. The result of the field observation in plots indicated that the rust spores of Z. schinifolium mainly spread by airborne transmission, which was closely related to temperature,rainfall and relatived humidity. The disease of the initial time happencd between July and August,the symptom appearance was in August and the rust began to be prevalent form September to October. On that basis, the physiological indices of susceptible plants in were determined different periods. The results showed that the activities of peroxidase (POD),polyphenol oxidase (PPO),phenylalanine ammonialyase (PAL) and the content of free proline (Pro) had the significantly positive correlations with the infection index,but the content of chlorophyll had the significantly negative correlation with the infection index,and catalase (CAT) activity showed no correlation with it. In prevention experiments, the prevention effect reached 93% by use of 700 times of 15% Triadimefon WP and 700 times of 70% mancozeb WP, while the prevention effect reached 50% by use of Bordeaux mixture. In the curing experiment,the best control effect was 53.5% by use of 700 times of 70% mancozeb while the worst control effect was just 9.3% by use of Bordeaux mixuture.
The investigation was made of the ocurrence regularity and integrated control of Z. schinifolium rust in Ya'an area from 2010 to 201. The result of the field observation in plots indicated that the rust spores of Z. schinifolium mainly spread by airborne transmission, which was closely related to temperature,rainfall and relatived humidity. The disease of the initial time happencd between July and August,the symptom appearance was in August and the rust began to be prevalent form September to October. On that basis, the physiological indices of susceptible plants in were determined different periods. The results showed that the activities of peroxidase (POD),polyphenol oxidase (PPO),phenylalanine ammonialyase (PAL) and the content of free proline (Pro) had the significantly positive correlations with the infection index,but the content of chlorophyll had the significantly negative correlation with the infection index,and catalase (CAT) activity showed no correlation with it. In prevention experiments, the prevention effect reached 93% by use of 700 times of 15% Triadimefon WP and 700 times of 70% mancozeb WP, while the prevention effect reached 50% by use of Bordeaux mixture. In the curing experiment,the best control effect was 53.5% by use of 700 times of 70% mancozeb while the worst control effect was just 9.3% by use of Bordeaux mixuture.
2014, 35(6): 9-16.
doi: 10.16779/j.cnki.1003-5508.2014.06.002
Abstract:
Investigations were made on the riparian plant diversity in the upper reaches, middle reaches and lower reaches of the Baitiao-fu River at different levels for the purpose of estimating river health. Each reach was scored according to the evaluation system which consists of several indexes. The scores of upper,middle and lower reaches were 72.7, 59.1 and 59.3 respectively. The result reflected the riparian plant diversity state of each reach of Baitiao-Fu River directly and accurately. According to the survey and analysis results, management measures and recommendations were proposed for each reach to maintain and promote the plant diversity and river health.
Investigations were made on the riparian plant diversity in the upper reaches, middle reaches and lower reaches of the Baitiao-fu River at different levels for the purpose of estimating river health. Each reach was scored according to the evaluation system which consists of several indexes. The scores of upper,middle and lower reaches were 72.7, 59.1 and 59.3 respectively. The result reflected the riparian plant diversity state of each reach of Baitiao-Fu River directly and accurately. According to the survey and analysis results, management measures and recommendations were proposed for each reach to maintain and promote the plant diversity and river health.
2014, 35(6): 17-21.
doi: 10.16779/j.cnki.1003-5508.2014.06.003
Abstract:
Six years of continuous researches were conducted on the soil moisture, nutrients, physical and chemical properties,structure and benefits of mixed forest of Pinus tabulaeformis and Robinia pseudoacacia in the dry valley of the upper Minjiang River. The main results were as follows:(1) the average soil moisture between 0 and 40 cm in mixed forest increased by 0.91 g·kg-1 and 0.55 g·kg-1 than that in Pinus tabulaeformis and Robinia pseudoacacia pure forest respectively; (2) The soil bulk density in mixed forest of 18 years old decreased by 0.13 g·kg-1 and 0.10 g·kg-1 than that in Pinus tabulaeformis and Robinia pseudoacacia pure forest respectively; (3) Soil organic matter, soil available nitrogen, soil phosphorus and soil CEC content in mixed forest increased by 0.54 mg·kg-1~1.48 mg·kg-1,6.4 mg·kg-1~19.4 mg·kg-1,0.36 mg·kg-1~1.37 mg·kg-1 and 0.23 mg·100 g-1~0.85mg·100 g-1 than those in pure forest respectively; calcium carbonate content of the soil and soil available K decreased by 0.43 mg·kg-1~1.09mg·kg-1 and 6.90 mg·kg-1~23.90 mg·kg-1 than those in pure forest respectively. (4) The canopy area,canopy thickness and canopy moisture retention rate of the mixed forest increased by 47.83%~78.95%,40.63%~73.08%,6.15%~8.32% than those of the pure forest respectively. The litter saturated water was 1.62 times~4.22 times than that of pure forest; (5) The height and diameter in the mixed forest increased 24.7% and 27.35% respectively as compared with the pure forest. The profit of mixed forest was 7.12 times than that of pure forest.
Six years of continuous researches were conducted on the soil moisture, nutrients, physical and chemical properties,structure and benefits of mixed forest of Pinus tabulaeformis and Robinia pseudoacacia in the dry valley of the upper Minjiang River. The main results were as follows:(1) the average soil moisture between 0 and 40 cm in mixed forest increased by 0.91 g·kg-1 and 0.55 g·kg-1 than that in Pinus tabulaeformis and Robinia pseudoacacia pure forest respectively; (2) The soil bulk density in mixed forest of 18 years old decreased by 0.13 g·kg-1 and 0.10 g·kg-1 than that in Pinus tabulaeformis and Robinia pseudoacacia pure forest respectively; (3) Soil organic matter, soil available nitrogen, soil phosphorus and soil CEC content in mixed forest increased by 0.54 mg·kg-1~1.48 mg·kg-1,6.4 mg·kg-1~19.4 mg·kg-1,0.36 mg·kg-1~1.37 mg·kg-1 and 0.23 mg·100 g-1~0.85mg·100 g-1 than those in pure forest respectively; calcium carbonate content of the soil and soil available K decreased by 0.43 mg·kg-1~1.09mg·kg-1 and 6.90 mg·kg-1~23.90 mg·kg-1 than those in pure forest respectively. (4) The canopy area,canopy thickness and canopy moisture retention rate of the mixed forest increased by 47.83%~78.95%,40.63%~73.08%,6.15%~8.32% than those of the pure forest respectively. The litter saturated water was 1.62 times~4.22 times than that of pure forest; (5) The height and diameter in the mixed forest increased 24.7% and 27.35% respectively as compared with the pure forest. The profit of mixed forest was 7.12 times than that of pure forest.
2014, 35(6): 22-26.
doi: 10.16779/j.cnki.1003-5508.2014.06.004
Abstract:
In this paper,a detailed description is given of the progress of hazelnut genetic basis,including genetic diversity,population genetic structure and phytogeography,and cultivar characterization,aiming to lay the foundation of basic research and genetic improvement of hazelnuts in Sichuan.
In this paper,a detailed description is given of the progress of hazelnut genetic basis,including genetic diversity,population genetic structure and phytogeography,and cultivar characterization,aiming to lay the foundation of basic research and genetic improvement of hazelnuts in Sichuan.
2014, 35(6): 27-31.
doi: 10.16779/j.cnki.1003-5508.2014.06.005
Abstract:
Scenic forest,as a kind of special-use forests,is an important part of meeting people's ecological needs. Through an analysis of concept, development history and research trends of the scenic forest, discussion was made on research direction and prospect of the scenic forest. It is suggested that it should be an important practical significance to launch relevant researches on promoting the establishment of a beautiful,healthy and stable scenic forest and the development of ecotourism.
Scenic forest,as a kind of special-use forests,is an important part of meeting people's ecological needs. Through an analysis of concept, development history and research trends of the scenic forest, discussion was made on research direction and prospect of the scenic forest. It is suggested that it should be an important practical significance to launch relevant researches on promoting the establishment of a beautiful,healthy and stable scenic forest and the development of ecotourism.
2014, 35(6): 32-37.
doi: 10.16779/j.cnki.1003-5508.2014.06.006
Abstract:
Currently the degradation and desertification of grassland have become a problem in China and the world,more and more researchers are concerned about the protection and restoration of the grassland desertification,particularly the sandy grassland vegetation restoration has become a hot research to ecologists at home and abroad. Based on reviewing the sandy grassland restoration research at home and abroad,the steps and pathways of sandy grassland vegetation restoration and rehabitation are proposed in this paper,the and discussion is made on the restoration and rehabitation of vegetation of sandy grassland.
Currently the degradation and desertification of grassland have become a problem in China and the world,more and more researchers are concerned about the protection and restoration of the grassland desertification,particularly the sandy grassland vegetation restoration has become a hot research to ecologists at home and abroad. Based on reviewing the sandy grassland restoration research at home and abroad,the steps and pathways of sandy grassland vegetation restoration and rehabitation are proposed in this paper,the and discussion is made on the restoration and rehabitation of vegetation of sandy grassland.
2014, 35(6): 38-40.
doi: 10.16779/j.cnki.1003-5508.2014.06.007
Abstract:
Three new formas of Bambusoideae are Chimonocalamus delicatus Hsueh et Yi f. rubidulicaulinus Yi,M. S. Sun et J. Y. Shi; Chimonocalamus delicatus Hsueh et Yi f. chlorinilineatus Yi, M. S. Sun et J. Y. Shi and Phyllostachys vivax C. D. Chu et C. S. Chao f. luteololineatus Yi,J. Y. Shi et M. S. Sun. They are all found in Yunnan,China.
Three new formas of Bambusoideae are Chimonocalamus delicatus Hsueh et Yi f. rubidulicaulinus Yi,M. S. Sun et J. Y. Shi; Chimonocalamus delicatus Hsueh et Yi f. chlorinilineatus Yi, M. S. Sun et J. Y. Shi and Phyllostachys vivax C. D. Chu et C. S. Chao f. luteololineatus Yi,J. Y. Shi et M. S. Sun. They are all found in Yunnan,China.
2014, 35(6): 41-46.
doi: 10.16779/j.cnki.1003-5508.2014.06.008
Abstract:
Rare and endangered wild plants,being an important component of biological diversity,have become one of the hot issues for conservation biology. In this study,based on the information from published literatures and the specimen records mainly from the Chinese Virtual Herbarium, a detailed study was made of the population quanties, the current situation, and geographic distribution characteristics of 33 rare endangered species in Sichuan province. Besides,based on the threat analysis of population decline, some protedion measures were proposed for the purpose of improving sustainable use of wild plant resources and the conservation of the biodiversity.
Rare and endangered wild plants,being an important component of biological diversity,have become one of the hot issues for conservation biology. In this study,based on the information from published literatures and the specimen records mainly from the Chinese Virtual Herbarium, a detailed study was made of the population quanties, the current situation, and geographic distribution characteristics of 33 rare endangered species in Sichuan province. Besides,based on the threat analysis of population decline, some protedion measures were proposed for the purpose of improving sustainable use of wild plant resources and the conservation of the biodiversity.
2014, 35(6): 47-50.
doi: 10.16779/j.cnki.1003-5508.2014.06.009
Abstract:
In order to study the effect of eco-blanket covering on soil moisture and nutrients,the eco-blanket is firstly applied to the gravel sediment accumulation area and sediment accumulation area in landslide areas caused by the earthquake. The results showed that the moisture of soil covered with the eco-blanket was higher than that of bare oil; the moisture content of each layer soil was downward with the number of drought days increasing,while the declining of the soil covered with the eco-blanket was relatively stable; water retention effect was as follows:coconut fiber eco-blanket > straw + coconut fiber eco-blanket > straw eco-blanket > bare land. The eco-blanket coverage could increase soil organic matter content and pH value; soil available N,P,K and total N,P,K content also improved to some extent. Laying the eco-blanket could fix the gravel sediment effectively in landslide areas caused by the earthquake and improve soil water and heat conditions,thus increasing the activity of roots and microbial and the accumulation of vegetation organisms,promoting the decomposition of litter,and gradually improving the soil nutrient content.
In order to study the effect of eco-blanket covering on soil moisture and nutrients,the eco-blanket is firstly applied to the gravel sediment accumulation area and sediment accumulation area in landslide areas caused by the earthquake. The results showed that the moisture of soil covered with the eco-blanket was higher than that of bare oil; the moisture content of each layer soil was downward with the number of drought days increasing,while the declining of the soil covered with the eco-blanket was relatively stable; water retention effect was as follows:coconut fiber eco-blanket > straw + coconut fiber eco-blanket > straw eco-blanket > bare land. The eco-blanket coverage could increase soil organic matter content and pH value; soil available N,P,K and total N,P,K content also improved to some extent. Laying the eco-blanket could fix the gravel sediment effectively in landslide areas caused by the earthquake and improve soil water and heat conditions,thus increasing the activity of roots and microbial and the accumulation of vegetation organisms,promoting the decomposition of litter,and gradually improving the soil nutrient content.
2014, 35(6): 51-55.
doi: 10.16779/j.cnki.1003-5508.2014.06.010
Abstract:
Sample plot investigations were conducted on three kinds of artificial forest community of 15 years in Puwen Experimental Forest Farm, and analysis was made of the diversity and biomass of the three kinds of forest community species. And the results showed that the biodiversity index and evenness index of Betula alnoides were the largest, respectively 3.06 and 91.82%; the biomass of Betula alnoides was also the largest, its value was 115.. 82 t·hm-2, and its annual growth rate was 7.72 t·hm-2, much higher than the local natural tropical forest with 4.184 t·hm-2. As compared with other positive species, Betula alnoides had a higher growth rate, showing a high production capacity, and as a native species, it could be applied in the tropical afforestation project in Yunnan Province.
Sample plot investigations were conducted on three kinds of artificial forest community of 15 years in Puwen Experimental Forest Farm, and analysis was made of the diversity and biomass of the three kinds of forest community species. And the results showed that the biodiversity index and evenness index of Betula alnoides were the largest, respectively 3.06 and 91.82%; the biomass of Betula alnoides was also the largest, its value was 115.. 82 t·hm-2, and its annual growth rate was 7.72 t·hm-2, much higher than the local natural tropical forest with 4.184 t·hm-2. As compared with other positive species, Betula alnoides had a higher growth rate, showing a high production capacity, and as a native species, it could be applied in the tropical afforestation project in Yunnan Province.
2014, 35(6): 56-59.
doi: 10.16779/j.cnki.1003-5508.2014.06.011
Abstract:
In this paper, SPOT NDVI images from 1998 to 2013 were used to estimate the spatial-temporal variation of the vegetation in Aba, China. The results showed that the average value was 0.383 and monthly changed from 0.222 to 0.623 during recent 15 years, and the value of NDVI reached a peak in August. The total vegetation coverage was increasing year by year in the study area, and the 56.83% of the research area was improved. The degradation regions were located in the southern areas. The vegetations of Xiaojin and Wenchuan were seriously degraded and the wetland in Zoigê plateau presented some degradation, which might result from grazing.
In this paper, SPOT NDVI images from 1998 to 2013 were used to estimate the spatial-temporal variation of the vegetation in Aba, China. The results showed that the average value was 0.383 and monthly changed from 0.222 to 0.623 during recent 15 years, and the value of NDVI reached a peak in August. The total vegetation coverage was increasing year by year in the study area, and the 56.83% of the research area was improved. The degradation regions were located in the southern areas. The vegetations of Xiaojin and Wenchuan were seriously degraded and the wetland in Zoigê plateau presented some degradation, which might result from grazing.
2014, 35(6): 60-63.
doi: 10.16779/j.cnki.1003-5508.2014.06.012
Abstract:
In this paper,the TM images of 1990,2000 and 2009 were used as the main datasources,and analysis was made of the dynamic characteristics of the landscape pattern of wetland in Ruoergai by means of using 3S technique,aiming to explore the wetland change law in Zoigê County for the recent 20 yeas. The results showed that in the recent 20 years, the Zoigê wetland landscape patch number decreased generally, the wetland landscape area displayed a shrinking trend,the wetland landscape diversity was a balanced development, and various types of patch area had a big difference, exhibitina uneven distribution and landscape fragmentation. Therefore,the protection of Zoigê wetland should be further strengthened for the purpose of controlling the wetland landscape pattern change and scientific and rational use of resources.
In this paper,the TM images of 1990,2000 and 2009 were used as the main datasources,and analysis was made of the dynamic characteristics of the landscape pattern of wetland in Ruoergai by means of using 3S technique,aiming to explore the wetland change law in Zoigê County for the recent 20 yeas. The results showed that in the recent 20 years, the Zoigê wetland landscape patch number decreased generally, the wetland landscape area displayed a shrinking trend,the wetland landscape diversity was a balanced development, and various types of patch area had a big difference, exhibitina uneven distribution and landscape fragmentation. Therefore,the protection of Zoigê wetland should be further strengthened for the purpose of controlling the wetland landscape pattern change and scientific and rational use of resources.
2014, 35(6): 64-68.
doi: 10.16779/j.cnki.1003-5508.2014.06.013
Abstract:
In this articl,the investigation and analysis were made of the stand structure, canopy density, density, volume, productivity and stem of Japanese larch plantations by selecting Japanese larch sapling forest, mid-age forest, near-mature forest in the Northeast mountain, southwest mountain, west mountain canyon areas of the Sichuan Basin. According to the change of Japanese larch plantation DBH current annual increment decreasing time, the recovery time of canopy density and a comprehensive analysis of the natural thinning,the thinning technology was proposed, and the reasonable suggestion was put forward on the relationship between planting density and reasonable thinning of Japanse larch plantation.
In this articl,the investigation and analysis were made of the stand structure, canopy density, density, volume, productivity and stem of Japanese larch plantations by selecting Japanese larch sapling forest, mid-age forest, near-mature forest in the Northeast mountain, southwest mountain, west mountain canyon areas of the Sichuan Basin. According to the change of Japanese larch plantation DBH current annual increment decreasing time, the recovery time of canopy density and a comprehensive analysis of the natural thinning,the thinning technology was proposed, and the reasonable suggestion was put forward on the relationship between planting density and reasonable thinning of Japanse larch plantation.
2014, 35(6): 69-72.
doi: 10.16779/j.cnki.1003-5508.2014.06.014
Abstract:
In this paper,an investigation was made on the Toona sinensis plantation in Suining region,and analysis was made of the relationship between average height of dominant trees and site conditions (soil texture, underground water level, drainage, interbed ded stratum, pH value soil parent materials, compaction, etc) in different sample plots. Finally a quantitative site index table was drawn up,including the four factors of the soil texture, ground water level, drainage condition and double-layered stratum. This table would be a good guidance for afforestation and forest management of Toona sinensis in this area.
In this paper,an investigation was made on the Toona sinensis plantation in Suining region,and analysis was made of the relationship between average height of dominant trees and site conditions (soil texture, underground water level, drainage, interbed ded stratum, pH value soil parent materials, compaction, etc) in different sample plots. Finally a quantitative site index table was drawn up,including the four factors of the soil texture, ground water level, drainage condition and double-layered stratum. This table would be a good guidance for afforestation and forest management of Toona sinensis in this area.
2014, 35(6): 73-76.
doi: 10.16779/j.cnki.1003-5508.2014.06.015
Abstract:
In this paper,researches were made on the characteristics of soil actinomycetes in the vertical distribution mountain belts of Mabian County by use of microbial plate culture method and counting method. The results showed that soil actinomycetes decreased with the increase of soil depth; different forest types had an evident difference in soil actinomycetes; the amount of soil actinomycetes would first increase and then decrease with the increasing altitude. Meanwhile, the total number of actinomycetes in different forest vegetation varied widely during the rainy and dry seasons, the largest trends appeared in the rainy season and the minimum trends happened in the dry season, and their difference was significant.
In this paper,researches were made on the characteristics of soil actinomycetes in the vertical distribution mountain belts of Mabian County by use of microbial plate culture method and counting method. The results showed that soil actinomycetes decreased with the increase of soil depth; different forest types had an evident difference in soil actinomycetes; the amount of soil actinomycetes would first increase and then decrease with the increasing altitude. Meanwhile, the total number of actinomycetes in different forest vegetation varied widely during the rainy and dry seasons, the largest trends appeared in the rainy season and the minimum trends happened in the dry season, and their difference was significant.
2014, 35(6): 77-80.
doi: 10.16779/j.cnki.1003-5508.2014.06.016
Abstract:
Analysis was made of the effects of Wenchuan earthquake on community economy in Wolong national nature reserve according to collecting the community economy data from 2003 to 2013. The results showed that domestic income, total income and expenditures declined in 2008 when Wenchuan earthquake happened. In other 10 years, domestic income, total income and expenditures increased linearly (R2 > 0.800). That meant that Wenchuan earthquake did not cause lasting effects on total community economy. After the earthquake, the proportions of farming, industry and commerce were lower than before. But the proportions of graziery and construction industry increased, thus making up the loss of farming, industry and commerce. The earthquake dealt a heavy blow to tourism and made tourism almost stagnated.
Analysis was made of the effects of Wenchuan earthquake on community economy in Wolong national nature reserve according to collecting the community economy data from 2003 to 2013. The results showed that domestic income, total income and expenditures declined in 2008 when Wenchuan earthquake happened. In other 10 years, domestic income, total income and expenditures increased linearly (R2 > 0.800). That meant that Wenchuan earthquake did not cause lasting effects on total community economy. After the earthquake, the proportions of farming, industry and commerce were lower than before. But the proportions of graziery and construction industry increased, thus making up the loss of farming, industry and commerce. The earthquake dealt a heavy blow to tourism and made tourism almost stagnated.
2014, 35(6): 81-83.
doi: 10.16779/j.cnki.1003-5508.2014.06.017
Abstract:
Comparison experiment and research were conducted on the cutting propagation of Litsea mollis by different mediums, different seasons of cutting propagation, different rooting hormones. The results showed that the cutting effect was best on use of perlite substrate and cuttings treated by 1 000 ppm IAA in early summer, and the rooting rate reached 74.03%.
Comparison experiment and research were conducted on the cutting propagation of Litsea mollis by different mediums, different seasons of cutting propagation, different rooting hormones. The results showed that the cutting effect was best on use of perlite substrate and cuttings treated by 1 000 ppm IAA in early summer, and the rooting rate reached 74.03%.
2014, 35(6): 84-87.
doi: 10.16779/j.cnki.1003-5508.2014.06.018
Abstract:
Studies were made of instantaneous transpiration rate and daily water consumption of 7 common garden species (Cinnamomum camphora, Osmanthus fragrans, Sapindus mukorossi, Koelreuteria integrifoliola, Celtis sinensis, Celtis biondi, Celtis julianae) under different weather conditions by use of Li-6400 portable photosynthesis system and ACS-D11 electronic balance and by adopting a pot experiment. The results showed that ① under the conditions of sufficient water, the changes tendency of water consumption rate of 7 tested species in different weather conditions were basically the same, lower in the morning and the evening, higher at around midday, displaying the unimodal or bimodal curve; ②The differences of daily water consumption under different weather conditions reached an extremely significant level, the differences of different tree species reached a significant level, among them the daily water consumption of Celtis biondii was extremely significantly higher than that of Cinnamomum camphora, and significantly higher than that of the other 5 tree species.
Studies were made of instantaneous transpiration rate and daily water consumption of 7 common garden species (Cinnamomum camphora, Osmanthus fragrans, Sapindus mukorossi, Koelreuteria integrifoliola, Celtis sinensis, Celtis biondi, Celtis julianae) under different weather conditions by use of Li-6400 portable photosynthesis system and ACS-D11 electronic balance and by adopting a pot experiment. The results showed that ① under the conditions of sufficient water, the changes tendency of water consumption rate of 7 tested species in different weather conditions were basically the same, lower in the morning and the evening, higher at around midday, displaying the unimodal or bimodal curve; ②The differences of daily water consumption under different weather conditions reached an extremely significant level, the differences of different tree species reached a significant level, among them the daily water consumption of Celtis biondii was extremely significantly higher than that of Cinnamomum camphora, and significantly higher than that of the other 5 tree species.
2014, 35(6): 88-90.
doi: 10.16779/j.cnki.1003-5508.2014.06.019
Abstract:
2014, 35(6): 91-94.
doi: 10.16779/j.cnki.1003-5508.2014.06.020
Abstract:
Canker disease is a devastating disease in the kiwifruit production. Through some years of control tests,field investigation and study and according to the cause of formation of canker disease, studies were made of the method of integrated control of canker disease and the integrated control of canker disease model of kiwifruit was summarized.
Canker disease is a devastating disease in the kiwifruit production. Through some years of control tests,field investigation and study and according to the cause of formation of canker disease, studies were made of the method of integrated control of canker disease and the integrated control of canker disease model of kiwifruit was summarized.
2014, 35(6): 95-96,16.
doi: 10.16779/j.cnki.1003-5508.2014.06.021
Abstract:
In June, 2010,20 months of seedlings and top branch and branch cuttings of Taxus yunnanensis were planted in the container in Pu'er seed breeding base, and the single factor was adopted to conduct randomized block design. In December 2011 the growth of tree height, ground diameter and collateral branches number were observed and analysed. The results showed that three treatments had significant difference in the tree height, diameter and collateral branches number. Treatment a (seedlings) displayed the best. Treatment C (branch cutting) showed the worst in the tree height and ground diameter. And treatment B (top branch cutting) had the worst collateral branching number.
In June, 2010,20 months of seedlings and top branch and branch cuttings of Taxus yunnanensis were planted in the container in Pu'er seed breeding base, and the single factor was adopted to conduct randomized block design. In December 2011 the growth of tree height, ground diameter and collateral branches number were observed and analysed. The results showed that three treatments had significant difference in the tree height, diameter and collateral branches number. Treatment a (seedlings) displayed the best. Treatment C (branch cutting) showed the worst in the tree height and ground diameter. And treatment B (top branch cutting) had the worst collateral branching number.
2014, 35(6): 97-101.
doi: 10.16779/j.cnki.1003-5508.2014.06.022
Abstract:
In order to get the technologies of establishing scion plucking orchard and cutting seedling propagation skills on Pingou hybrid hazelnut,the data was collected in a trial arranged different treatments for 2.5 years' time. The results showed that (1) in cuttings, using a treatment of 400 mg·L-1 GGR1 root promoting power solution was best, the rooting rate was 65.1%, the clear water treatment effect of cuttings was the worst,and its rooting rate was below 6.7%; (2) When the cutting time was in June or before October, the survival rate reached the best, namely 58.86% and 67.48%; (3) Scions with 2/3 leaf blade had the best rooting rate of 66.7%. (4) The upper branches of cuttings had the highest survival rate of 66.8%; (5) The scions rooted from both bark and callus,while 84.46% of the sions rooted from bark only.
In order to get the technologies of establishing scion plucking orchard and cutting seedling propagation skills on Pingou hybrid hazelnut,the data was collected in a trial arranged different treatments for 2.5 years' time. The results showed that (1) in cuttings, using a treatment of 400 mg·L-1 GGR1 root promoting power solution was best, the rooting rate was 65.1%, the clear water treatment effect of cuttings was the worst,and its rooting rate was below 6.7%; (2) When the cutting time was in June or before October, the survival rate reached the best, namely 58.86% and 67.48%; (3) Scions with 2/3 leaf blade had the best rooting rate of 66.7%. (4) The upper branches of cuttings had the highest survival rate of 66.8%; (5) The scions rooted from both bark and callus,while 84.46% of the sions rooted from bark only.
2014, 35(6): 102-104.
doi: 10.16779/j.cnki.1003-5508.2014.06.023
Abstract:
Intercropping valuable timber tree species in the tea garden was the innovation cropping pattern of the ecological tea garden in Xishuangbanna prefecture. The biodiversity of tea garden was going to be improved by intercropping valuable timber tree species, which created a suitable ecological environment for the growth of tea, and made a harmony and unity situation to the tea growth and the tea garden system. It could not only promote the quality and yield of tea and the pest control and disease prevention of tea, but also obtain better economic benefits after years of operation in the intercropping valuable timber tree species. Consequently, this cropping pattern would greatly improve the comprehensive economic benefit of the tea garden.
Intercropping valuable timber tree species in the tea garden was the innovation cropping pattern of the ecological tea garden in Xishuangbanna prefecture. The biodiversity of tea garden was going to be improved by intercropping valuable timber tree species, which created a suitable ecological environment for the growth of tea, and made a harmony and unity situation to the tea growth and the tea garden system. It could not only promote the quality and yield of tea and the pest control and disease prevention of tea, but also obtain better economic benefits after years of operation in the intercropping valuable timber tree species. Consequently, this cropping pattern would greatly improve the comprehensive economic benefit of the tea garden.
2014, 35(6): 105-107,63.
doi: 10.16779/j.cnki.1003-5508.2014.06.024
Abstract:
In this paper,from the aspects of afforestation patterns, tree species selection and design, site preparation and planting techniques,a detailed summary description is given of experience in the walnut plantation in Chaotian district of Guangyuan. Meanwhile,assessment is conducted on the social, economic and carbon sequestration benefits,thus having a certain a guiding and facilitating role in the next step for walnut afforestation planning and forestry development planning.
In this paper,from the aspects of afforestation patterns, tree species selection and design, site preparation and planting techniques,a detailed summary description is given of experience in the walnut plantation in Chaotian district of Guangyuan. Meanwhile,assessment is conducted on the social, economic and carbon sequestration benefits,thus having a certain a guiding and facilitating role in the next step for walnut afforestation planning and forestry development planning.
2014, 35(6): 108-110.
doi: 10.16779/j.cnki.1003-5508.2014.06.025
Abstract:
In this paper,combined with the relevant literatures, a summary description is given of the distribution, research status and exploitation value of wild Corylus resources in Ganzi, aiming to reveal the prospects of development and utilization of genus Corylus.
In this paper,combined with the relevant literatures, a summary description is given of the distribution, research status and exploitation value of wild Corylus resources in Ganzi, aiming to reveal the prospects of development and utilization of genus Corylus.
2014, 35(6): 111-113.
doi: 10.16779/j.cnki.1003-5508.2014.06.026
Abstract:
In this paper,a brief description is given of the development status,existing issues of walnut industry in Ningnan,and some development strategy is put forward for cultivating self-awareness, improving the infrastructure construction,speeding up the breeding of fine varieties, establishing demonstration gardens,and developing profound processing,aiming to take the path of industrialization etc.
In this paper,a brief description is given of the development status,existing issues of walnut industry in Ningnan,and some development strategy is put forward for cultivating self-awareness, improving the infrastructure construction,speeding up the breeding of fine varieties, establishing demonstration gardens,and developing profound processing,aiming to take the path of industrialization etc.
2014, 35(6): 114-115,37.
doi: 10.16779/j.cnki.1003-5508.2014.06.027
Abstract:
2014, 35(6): 116-119.
doi: 10.16779/j.cnki.1003-5508.2014.06.028
Abstract:
2014, 35(6): 120-122,90.
doi: 10.16779/j.cnki.1003-5508.2014.06.029
Abstract:
2014, 35(6): 123-124.
doi: 10.16779/j.cnki.1003-5508.2014.06.030
Abstract:
2014, 35(6): 125-126.
doi: 10.16779/j.cnki.1003-5508.2014.06.031
Abstract:
2014, 35(6): 127-129.
doi: 10.16779/j.cnki.1003-5508.2014.06.032
Abstract:
2014, 35(6): 130-132,124.
doi: 10.16779/j.cnki.1003-5508.2014.06.033
Abstract:
In this paper,a description is given of the cultivation techniques, cost, benefits of planting Poria cocos in the underwood. The analysis and evaluation showed that the overall cost was 9 925 yuan by planting on the wood, the output value reached sixteen to 24 thousands and the net profit up to ten thousands per 0.067 hectare at best, and the economic benefit was very significant. Planting of Poria cocos could also bring such social and ecological benefits as providing jobs, increasing income of farmers and improving soil structure, increasing soil fertility and so on. The comprehensive analysis and evaluation showed that the benefits of underwood planting of Poria cocos was very remarkable and the potential prospect would be good. Therefore the underwood planting should be worth popularizing and applying in Zhaohua,Guangyuan.
In this paper,a description is given of the cultivation techniques, cost, benefits of planting Poria cocos in the underwood. The analysis and evaluation showed that the overall cost was 9 925 yuan by planting on the wood, the output value reached sixteen to 24 thousands and the net profit up to ten thousands per 0.067 hectare at best, and the economic benefit was very significant. Planting of Poria cocos could also bring such social and ecological benefits as providing jobs, increasing income of farmers and improving soil structure, increasing soil fertility and so on. The comprehensive analysis and evaluation showed that the benefits of underwood planting of Poria cocos was very remarkable and the potential prospect would be good. Therefore the underwood planting should be worth popularizing and applying in Zhaohua,Guangyuan.
