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2022 Vol. 43 Issue 2

2022 Vol. 43, No. 2 Catalogue

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Research Reports
Relationship between Abies Plant Community and Giant Panda Distribution in Giant Panda Habitat
LIU Xingliang, YANG WenJing, LIU Shan, CAI Lei, FENG Qiuhong, LI Xuhua, PAN Hongli, WEN Zhiyou, FANG Yi, JIA Cheng, DU Zhong, YAN Gang, LIU Qianli, AHANG LI, ZHANG Zhicai
2022, 43(2): 1-20. doi: 10.12172/202109170002
Abstract:
The forests formed with Abies species is a unique mountain cold-temperate dark coniferous forest in China. In Qinling mountains, Minshan mountains, Qionglai mountains, Daxiangling mountains, Xiaoxiangling mountains and Liangshan mountains, these are the primitive forest types constituted of the main construction species of Abies chensiensiensis, A. f argesii, A. faxoniana, A. yunnanensis, A. longbracteata, A. fabri, which become important habitats for wild rare animals such as giant pandas. From the perspective of phytogeography, this paper studied the modern geographical distribution pattern of Abies genus plants, the relationship between Abies plant communities and the distribution of giant pandas. It also clarified the composition characteristics of Abies constructive species community and its staple food bamboo sublayer, and the internal relationship between Abies constructive species forest types becoming the important habitat environment of giant panda. The research results can provide theoretical basis for ecological restoration of degraded giant panda habitat, construction of staple food bamboo base, reconstruction of corridor and passages, and habitat environment construction.
Research Reports
Ecological Suitability Analysis of Zanthoxylum bungeanum and Zanthoxylum armatum
YE Meng, YANG Li, XIANG Li, GAO Shun, LI Hongyun, WEN Dengxue
2022, 43(2): 21-30. doi: 10.12172/202107210002
Abstract:
In order to explore the suitable growing areas of Z. bungeanum and Z. armatum and scientifically select cultivation areas, 196 samples of Z. bungeanum and 289 samples of Z. armatum were collected, and the ecological suitability analysis was conducted by using GMPGIS (Geographic Information System for Global Medicinal Plants, GMPGIS). The results showed that 28 provinces in China including Yunnan, Sichuan, Hubei, Shanxi, Hunan and Guizhou were ecologically suitable for Z. bungeanum, while 21 provinces including Yunnan, Sichuan, Guangxi, Hunan, Hubei and Guizhou were ecologically suitable for Z. armatum. There are 55 countries and regions in the world suitable for growing Z. bungeanum, mainly in Asia, Europe and North America. 42 countries and regions in the world were suitable for the growth of Z. armatum, mainly in Asia, Europe, North America, South America and Oceania. Both China and the United States had the largest area, accounting for more than 70% of the total area of the global suitable area. There were obvious differences in the distribution of Z. bungeanum and Z. armatum. The suitable area of Z. bungeanum was wider than that of Z. armatum, and there was a certain overlapping area in the distribution of Z. bungeanum and Z. armatum.
Research Reports
Rapid Effects of Strip Clear-cutting on Soil Nutrients of Giant Panda Corridor Shrubs in the Minshan Mountains
LI Ling, WANG Yujie, GOU Xiaolin, ZHANG Yuanbin, JIANG Hao, YU Lin, TU Weiguo
2022, 43(2): 31-37. doi: 10.12172/202107080001
Abstract:
The Salix paraplesia shrubs in the giant panda corridor of the Minshan Mountains were chosen as the research object, and continuous strip clear-cutting and vegetation reconstruction were carried out. The characteristics of soil nutrients and microbial carbon and nitrogen contents in the clear-cutting zone and reserved zone of the shrubs were analyzed after 1 year. The results showed that the soil nutrient conditions and soil microbial conditions of the S. paraplesia shrubs were effectively improved after the clear-cutting reform. Compared with the reserved zone, the total nitrogen in the topsoil and subsoil of the clear-cutting zone increased by 14.54% and 29.50%, nitrate nitrogen increased by 10.86% and 23.36%, microbial nitrogen increased by 51.31% and 87.14%, microbial nitrogen entropy increased by 43.12% and 81.90%, microbial carbon and microbial carbon entropy in the topsoil increased by 39.32% and 38.96%, and ammonium nitrogen in the subsoil increased by 69.46%. After clear cutting, the C/N ratio decreased significantly, the microbial activity increased, the decomposition of organic matter accelerated, the total organic carbon of topsoil decreased, and the soluble nutrients may migrate and deplete to the lower layer. Measures can be taken to improve the surface vegetation and compensate for the consumption of soil organic matter.
Research Reports
Comparison Study on Activity Rhythms of Sambar (Cervus equinus) and Tufted Deer (Elaphodus cephalophus) in the Same Region Based on Infrared Camera Data
JIA Guoqing, YANG Xu, LI Yongdong, WANG Yu, ZHENG Xiaoao, JIANG Yong, YANG Biao, LI Shengqiang
2022, 43(2): 38-46. doi: 10.12172/202108030001
Abstract:
The comparative study of sympatric species is helpful for further analysis of interspecies behavior, ecological adaptation and co-existence mechanism. In order to explore the differences in daily activity pattern, temporal niche differentiation and coexisting mechanism of sympatric species, infrared camera were used to continuously monitor Sambar (Cervus equinus) and Tufted Deer (Elaphodus cephalophus) from May 2017 to April 2018 in Gongga Mountain National Nature Reserve, Sichuan province. The kernel density estimation and coefficient of overlap were used to analyze the daily activity rhythm of the two species. The results showed that both Sambar (Cervus equinus) and Tufted Deer (Elaphodus cephalophus) were more inclined to the morning and dusk activity, but the similarity of the daily activity rhythm between the two was lower (Δ=0.80, P<0.01). There were three activity peaks in the daily activity rhythm of Sambar, which were 03:30—04:00, 06:00—08:00 and 18:00—23:30, while there were only two activity peaks in the daily activity rhythm of Tufted Deer, which were 07:00—12:00 and 17:00—21:30. The morning activity peak of Sambar was significantly earlier than that of Tufted Deer, while the end time of dusk activity peak was 2 hours later. The daily activity rhythm of the two species was significantly different between seasons (Sambar: Δ=0.93, P=0.03; Tufted Deer: Δ=0.88, P<0.01). The morning activity peak of the two species appeared half an hour later in the dry season than that in the rainy season, while the dusk activity peak (19:00) of Tufted Deer was one hour earlier than that in the rainy season (20:00). Compared with the rainy season, the dusk activity peak values of both were larger and the activity peaks of both were longer in the dry season than that in the rainy season, however, in the rainy season, the activity peak values and activity peaks of the two species showed opposite trend. The overlap index of the daily activity rhythm between Sambar and Tufted Deer during the research period was lower (Δ=0.80), and the overlap index (Δ=0.83) and the maximum activity peak value (0.12) in the dry season were higher than those in the rainy season (Δ=0.74; the peak value was 0.10), but there were significant differences between the whole and the seasons (P<0.01). This study showed that sympatric species of Sambar and Tufted Deer could coexist through temporal niche differentiation to reduce competition for food, space and time resources. The results of this study can provide important data reference for further research on the co-existence mechanism of sympatric species and for the formulation of targeted conservation and management strategies.
Research Reports
Spatio-Temporal Niche Differentiation of White Eared Pheasant (Crossoptilon crossoptilon) and Blood Pheasant (Ithaginis cruentus) in Gongga Mountain National Nature Reserve, Sichuan Province
LI Yongdong, YANG Xu, JIA Guoqing, WANG Yu, ZHENG Xiaoao, JIANG Yong, YANG Biao, LI Shengqiang
2022, 43(2): 47-55. doi: 10.12172/202107310001
Abstract:
It is of great practical significance to study niche differentiation of sympatric species for integrated conservation and management of species in different regions. From May 2017 to April 2018, infrared camera traps were installed to continuously monitor the sympatric distribution of White Eared Pheasant (Crossoptilon crossoptilon) and Blood Pheasant (Ithaginis cruentus) in Gongga Mountain National Nature Reserve, Sichuan province. Kruskal-Wallis H test and kernel density estimation were used to compare and analyze the differences in utilization of altitude, vegetation type and daily activity rhythm of the two species in dry and rainy seasons with the infrared camera data. The results were as follows: 1) The distribution camera positions of C. crossoptilon (53) and I. cruentus (49) were similar, with 24 identical sites, all of which were distributed only in the three vegetation types of coniferous and broad-leaved mixed forest, coniferous forest and shrub forest. 2) The altitude distribution range of I. cruentus (2981~3930 m) and C. crossoptilon (3067~3930 m) was similar, but the average altitude distribution of C. crossoptilon was significantly higher than that of I. cruentus (3600.44 m ± 227.97 m vs. 3412.67 m ± 313.32 m; Z= −7.022, P<0.01). 3) Both C. crossoptilon and I. cruentus had obvious preference for coniferous and broad-leaved mixed forest, followed by coniferous forest. The utilization rate of shrub forest was the lowest, but there were differences in the utilization of different vegetation types between the two species. 4) The daily activity rhythm of C. crossoptilon showed three activity peaks, which was obviously different from the one activity peak of I. cruentus (Δ=0.85, P=0.002). 5) Compared with different seasons, there was no significant difference in daily activity rhythm between C. crossoptilon and I. cruentusin rainy season (Δ=0.84, P=0.07), but there was significant difference in dry season (Δ=0.86, P=0.04). This study has accumulated important basic data for studying the niche differentiation of sympatric pheasant species and can provide important scientific data for further exploring the coexistence mechanism of sympatric species and the development of targeted conservation and management strategies.
Research Reports
Diversity and Seasonal Dynamics of Ichneumonidae Insects in Different Land Use Types in Cangshan Mountain
YANG Xia, LI Jinku, TAN Kun, LI Yanpeng, HUANG Zhipang, XIAO Wen
2022, 43(2): 56-62. doi: 10.12172/202107220002
Abstract:
In order to understand the influence of land use types on the quantity and seasonal dynamic pattern of Ichneumonidae insects in southwest mountainous areas, the Malays net was used to collect the Ichneumonidae insects in natural forest, artificial forest and farmland month by month in the area of 2000-2300m above sea level in Cangshan mountain, Dali Bai Autonomous Prefecture, Yunnan province. The results showed that there was little difference in the number of groups within each land use type, but there were significant differences in the abundance, community structure, dominant taxa and seasonal dynamics. Neither the monthly mean temperature nor monthly rainfall can explained the monthly difference of the individual number of Ichneumonidae insects. Land use change had significantly affected the community of Ichneumonidae insects, but the mechanism needs further study.
Research Reports
Plant Functional Traits in Response to Fence Enclosure in Sierozem and Aeolian Sandy Soil Habitats of Ningxia Desert Grasslands
YU Xuan, WANG Xing, WU Ting, SONG Naiping
2022, 43(2): 63-70. doi: 10.12172/202107160002
Abstract:
Plant functional traits reflect the response and adaptation of plants to the growing environment, and are the representations of plants adopting different ecological strategies to adapt to the environment. The study on the adaptation and survival strategies of plant functional traits is ecologically indicative of the recovery of vegetation in fragile grassland ecosystems in arid and semi-arid zones. In this study, the functional traits of plant communities of sierozem and aeolian sandy soil in desert grassland under grazing and enclosure conditions were determined based on the field survey data of plant communities, leaf specific leaf area (SLA), leaf dry matter content (LDMC), leaf total phosphorus content (LTP), leaf total carbon content (LTC), leaf total nitrogen content (LTN) and carbon to nitrogen ratio (C/N). The functional traits of plant leaves in different soil habitats were measured in response to enclosure and grazing. The results showed that: 1) SLA and LTP increased significantly in aeolian sandy soil habitat, and LDMC, LTC and C/N increased significantly in sierozem soil habitat; LTP increased significantly in grazing treatment, and C/N increased significantly in enclosure treatment. Correlation analysis showed that LDMC and LTP were highly significantly negatively correlated (P>0.01) in the sierozem habitat and significantly negatively correlated (P>0.05) in the aeolian sandy soil habitat; LTN and LTP were highly significantly negatively correlated (P>0.01) in the sierozem habitat and significantly positively correlated (P<0.05) in the aeolian sandy soil habitat; total carbon and carbon to nitrogen ratio were highly significantly negatively correlated in both habitats ( P>0.01). Therefore, soil habitat has an impact on plant functional traits, and future management of grassland ecosystem should make specific decisions in combination with soil habitat.
Research Reports
Inversion of Forest Volume by Combining Sentinel-1 and Sentinel-2 Data
ZHANG Yutian, XU Xiaodong, SHI Junnan, LIU Yang, CAI Yaotong, LIN Hui, SHI Lingjie, ZHANG Huaiqing
2022, 43(2): 71-80. doi: 10.12172/202107040001
Abstract:
In order to clarify the influence of remote sensing data sources and machine learning models on the estimation of forest volume, and improve the estimation accuracy of regional forest volume. Based on the field survey data of 38 Larix gmelinii plots and 43 Pinus tabuliformis plots in Wangyedian forest farm, Inner Mongolia, the remote sensing characteristic information of Senitnel-1 and Sentinel-2 images such as spectrum and polarization were extracted. According to different feature combinations, four volume inversion models of Support Vector Regression (SVR), k-Nearest Neighbor (kNN), Multi-Layer Neural Network (MLP) and Multiple Linear Regression (MLR) models were established, and the assessment and comparison of these models were verified and compared. The results showed that: (1) Compared with a single data source, combining Sentinel-1 and Sentinel-2 data were benefit to improve the accuracy of forest volume estimation (an increase of 0.08 in R2 and 10.28 m3·hm−2 in RMSE for Larix gmelinii, and 0.05 in R2 and 4.51 m3·hm−2 in RMSE for Pinus tabuliformis); (2) Compared with MLP and MLR models, the SVR and kNN models had better performance on the estimation of forest volume. Among them, the SVR model achieved the highest accuracy in the estimation of Larix gmelinii volume (R2=0.84, RMSE=44.58 m3·hm−2), and the kNN model obtained the highest accuracy in the estimation of Pinus tabuliformis volume (R2=0.74, RMSE=41.41 m3·hm−2). The machine learning method combining Sentinel-1 and Sentinel-2 multi-source data can achieve a high precision of volume inversion, which can provide theoretical support and feasible solutions for remote sensing inversion of forest volume at regional scale.
Ecological Development
Analysis of Vegetation Coverage Change in Jiuzhaigou National Nature Reserve Before and After Earthquake Based on RS and GIS
LEI Yu, FENG Bin, XIE Yaoyao, HU Lu, ZHAO Shanshan, DONG Xin
2022, 43(2): 81-87. doi: 10.12172/202108160002
Abstract:
In order to explore the range and degree of vegetation coverage change in Jiuzhaigou National Nature Reserve before and after the earthquake, based on ENVI 5.3 and ArcGIS 10.2 software platform, this study extracted and calculated normalized vegetation index (NDVI) and vegetation coverage (FVC) data by using remote sensing image data before and after the earthquake, and then analyzed the temporal and spatial pattern changes of vegetation coverage in Jiuzhaigou National Nature Reserve before and after the magnitude 7.0 earthquake in 2017. The results showed that: (1) The vegetation coverage of Jiuzhaigou National Nature Reserve decreased significantly after the earthquake, mainly concentrated in the north, middle and southwest of the reserve; (2) The epicenter was located in the core area of the reserve. After the earthquake, the increase of low vegetation coverage in the core area was the largest. (3) The earthquake had a great impact on the vegetation in the area with an altitude of < 4000 m, but had little impact on the vegetation in the area with an altitude of > 4000 m. The earthquake reduced the area of vegetation in the slope range of 25°~35°, and the slope directions were east slope, southeast slope, south slope and southwest slope. The research results will provide some scientific reference for the ecological restoration and reconstruction of Jiuzhaigou Nature Reserve after the earthquake, and help us deeply understand the influence mechanism and change law of the earthquake on the vegetation coverage of different topographic factors.
Ecological Development
New Records of Mammal and Bird Diversity in Shenguozhuang Nature Reserve, Sichuan Province
CHEN Yunmei, TIAN Guansheng, XU Liangyan, AI Yongbin, LUO Jian, YANG Xu, CHEN Xin, YANG Xiaonong, HUANG Ke, YANG Zhisong, LI Shengqiang
2022, 43(2): 88-94. doi: 10.12172/202111250001
Abstract:
It’s very important to scientifically replenish, update and perfect the wildlife list in time for the scientific understanding the present situation of wildlife resources in the nature reserve and the targeted conservation and management. From April 2008 to September 2021, 182 effective camera monitoring sites were set up in Shenguozhuang Nature Reserve by using infrared cameras to monitor the mammals and birds in the forest. Through in-depth analysis of 91,915 infrared camera photos and video data, a total of 12 new records of species were found in the reserve, belonging to 3 orders and 6 families, including 1 mammal and 11 birds species. Among them, two species were national level II protection wild animals, namely Yellow-throated Marten (Martes flavigula) and Spotted Langhingthrush (Garrulax ocellatus). There were six species listed in the list of useful wildlife under national protection or of important economic or scientific value, including Eurasian Woodcock (Scolopax rusticola), Swinhoe’s Snipe (Gallinago megala), Spotted Langhingthrush, Black-breasted Thrush (Turdus dissimilis), Pink-rumped Rosefinch (Carpodacus waltoni) and Chinese White-browned Rosefinch (Carpodacus dubius). It’s suggested to strengthen the protection of key habitats in future conservation work, continuously use infrared cameras to carry out monitoring work and strengthen monitoring efforts in the key distribution areas of the above species. At the same time, the infrared camera data management platform should be continuously used to strengthen the scientific storage and management of monitoring data, so as to further grasp the present situation of regional wild mammal and bird species resources and dynamically accumulate more comprehensive scientific data.
Ecological Development
Altitude Distribution Pattern of Plant Species Diversity in the Baima Snow Mountain Nature Reserve, Yunnan Province
NIE Peixiao, ZHANG Caicai, LONG Xiaobin, LI Yanpeng, XIAO Wen
2022, 43(2): 95-100. doi: 10.12172/202107160001
Abstract:
In order to explore the altitude distribution of plant species composition and diversity in Baima Snow Mountain Nature Reserve, the plants in 7 plots along the elevation gradient (2300-3500m) were investigated. The results showed that: 1) There were 145 species of vascular plants belonging to 52 families and 87 genera in Baima Snow Mountain Nature Reserve were recorded in 7 plots investigated. 2) The richness index and Shannon-Wiener index of tree layer first increased, then decreased and then increased with the elevation, while the richness index and Shannon-Wiener index of shrub layer first decreased and then increased with the elevation. The two indexes of herb layer showed a downward trend. The Simpson index and Pielou index of tree layer, shrub layer and herb layer all decreased at first and then increased with the elevation. 3) The Cody index of tree layer, shrub layer and herb layer increased at first and then decreased with elevation. In conclusion, the composition of plant species in Baima Snow Mountain Nature Reserve was complex. The plants of different life forms showed different diversity distribution pattern along the altitude gradients, while the different sensitivities of different plant species to environmental heterogeneity and climate may be important factors affecting the diversity distribution pattern of plant species diversity.
Ecological Development
Research on the Morphological Evolution and Influencing Mechanism of Xiaolongmen Central Island by Cascade Hydropower Exploitation in the Middle Reaches of Jialing River
LUO Gang, SHU QiuGui
2022, 43(2): 101-107. doi: 10.12172/202201170001
Abstract:
After the completion and operation of the Jialing River Hydropower Project, the central island evolution in the middle reaches of the Jialing River has been greatly influenced. The Xiaolongmen central island, which was less affected by human activities, was selected as the research object. Based on the Landsat historical remote sensing images and hydrological data of Jialing River for many years, the morphological evolution characteristics and influencing factors of the Xiaolongmen central island before the construction of the hydropower station in 2003 and 2005 and after the completion of the hydropower station in 2009-2017 were comparatively analyzed. The results showed that before the operation of the hydropower station, the Xiaolongmen central island was in a state of natural development and showed an overall increasing trend. After the operation of Fengyi Hydropower Station and Xiaolongmen Hydropower Station in 2008, the Xiaolongmen central island was generally declined, This was mainly due to the interception of a large amount of sediment by the upstream hydropower station, the strong scouring effect of water discharge from the hydropower station on the central island, and the comprehensive influence of the rise and fall of the surrounding water level on the coastline of the central island, which lead to the continuous retreat and shrinkage of the Xiaolongmen central island.
Ecological Development
Analysis on the Landscape Pattern of Urban Green Space in the Main Urban Area of Nanchong City Based on Fragstats
LI Yujie, LIU Yi, CHEN Junhua, LIU Yiding, XIE Chuan, XIE Tianzi, HE Zhengwei, MU Changlong
2022, 43(2): 108-117. doi: 10.12172/202109180001
Abstract:
The study on the landscape pattern of urban green space can provide basic data for the overall urban planning and ecological construction, and it is of great significance to optimize the urban spatial structure and improve the ecological function of urban green space. Based on the "3S" technology and Fragstats 4.2 software, 12 landscape indexes were selected from patch level, type level and landscape level to carry out quantitative analysis on the ecological pattern of green space landscape in the main urban area of Nanchong city, and optimization countermeasures were put forward. The results showed that: (1) there were 12,822 green patches in the main urban area of Nanchong city, with a total area of 5,707.53 hm2, and the green space coverage rate was 40.39%. The landscape types were abundant, but they were relatively fragmented. (2) Among all types of green space, the area of regional green space was the largest, accounting for 37.43%, followed by park green space, accounting for 30.50%. The patches of regional green space and park green space were relatively complete, while all kinds of affiliated green space and protective green space were relatively fragmented. The patch shape of park green space, protection green space and regional green space was simple, and less affected by human activities. On the contrary, the green space affiliated to roads and residential areas was complicated in shape and greatly influenced by human beings. (3) All kinds of green space were unevenly distributed among different areas. In particular, the park green space was mainly distributed in Shunqing district, accounting for 56.48% of the total park green space, and the park green space in Gaoping district was the least, only 10.87%. Except for the park green space and regional green space, all other green spaces in the three districts showed a large degree of patch dispersion. In the future urban green space construction, much attention should be paid to improve patch types, optimize patch layout, appropriately increase the number of medium and large patches, connect fragmented patches and increase landscape spatial connectivity, in order to provide guarantee for species migration and energy flow. Finally, special attention should be paid to the development and utilization of attached green space and mountain green space, and the service radius between green patches should be increased to make the spatial distribution more reasonable.
Ecological Development
Analysis on the Characteristics of Urban Forest Structure in the Main Urban Area of Nanchong City
XIE Tianzi, CHEN Junhua, XIE Chuan, LIU Yiding, HE Jiamin, GONG Gutang, MU Changlong
2022, 43(2): 118-123. doi: 10.12172/202107190003
Abstract:
In this paper, the urban forest within the built-up area of the main urban area of Nanchong city was sampled according to the green space types, the diversity of vegetation species and tree specifications were studied. According to the current situation of urban forest structure in the main urban areas of Nanchong city, the existing problems were analyzed, which could provide reference basis for the planning of forest cities and the construction of urban forests. A total of 84 families, 164 genera, and 252 species of woody plants were recorded through the survey of 274 standard plots in each type of green space. In terms of frequency of arbor, the top five tree species in the main urban area use were Osmanthus sp. (13.19%) and Ficus virens Aiton (10.55%)、Ginkgo biloba L. (10.55%)、Cinnamomum japonicum Sieb. (9.50%)、Cinnamomum camphora (L.) Presl. (8.18%).The average DBH of the tree was 22.88cm, and the average crown width was 5.90m. Among the types of green spaces in the main urban area of Nanchong, the species composition, diversity and tree specifications of the protective green spaces were lower than that of other green spaces. In the future urban forest construction, the construction of protective green space should be strengthened, and the local tree species with dust retention, sterilization and other functions were preferred. Corresponding shrubs and herbs and other plants should be matched, which could enrich plant configuration models and improve the safety and stability of urban forests.
Ecological Development
Recreation Value, Place Attachment and Pro-environment Behaviors of Chengdu Field Research Center for Giant Pandas in Chengdu Panda Base
ZHONG Meiling, TANG Yong, WANG Yaoshu
2022, 43(2): 124-131. doi: 10.12172/202107120002
Abstract:
Using structural equation model, this study investigated the cognitive structural relationship between recreation value, place attachment and pro-environment behavioral (PEB) intentions of Chinese domestic tourists with the visit to the “Panda Valley” (Chengdu Field Research Center for Giant Pandas of CRBGPB), Dujianyang, Sichuan. The study utilized empirical design to collect 311 questionnaires from September 10, 2018 to January 13, 2019. The results showed that: (1) Local attachment could be divided into local identity and local dependence, and environmental protection behavior could be divided into two dimensions: active environmental protection behavior and compliance behavior. (2) Recreation value had a direct and significant positive impact on variables of place attachment, while recreational value had a direct and significant positive impact on compliance environmental protection behavior and active environmental protection behavior, suggesting that recreation value affected the intensity of their place attachment and pro-environment behavioral intentions. Place attachment had no direct effect on pro-environment behavior, and recreation value would not affect environmental protection behavior through place attachment. These findings with important practical significance for promoting the coordinated development of ecological environment protection and recreation activities, and ultimately accelerating the construction of Sichuan Giant Panda National Park.
Forestry Industry
The Development Status and Suggestions of Carbon GSP in Forestry
DAI Limei, TAN Xinyue, WANG Hui, TANG Yiqie, TANG Caifu
2022, 43(2): 132-137. doi: 10.12172/202107140001
Abstract:
Forestry carbon GSP is an innovation path of realizing the ecological products value and carbon neutralization. In China, carbon GSP was first carried out in Guangdong province, and forestry carbon GSP is an important content. In recent years, Sichuan, Hebei and other places have also started to study the methodology and mechanism of forestry carbon GSP. This paper analyzed the main types and characteristics of forestry carbon GSP methodology in China, as well as the issuance and trading of emission reduction of forestry carbon GSP. Some suggestions were put forward for the long-term development of forestry carbon GSP.
Forestry Industry
Studies on the Incidence and Chemical Control of Prickly Ash Rust in Sichuan Province
YANG Shuangyu, YANG li, ZENG Quan, YANG Yuanliang, XIAO Yinbo, JIA Yuzhen, WANG Xin, CHEN Shanbo
2022, 43(2): 138-144. doi: 10.12172/202110090001
Abstract:
According to the regional differences, 8 Sichuan pepper orchards were selected to investigate the spatial dynamic trend of the occurrence and prevalence of prickly ash rust, and the field control experiments were carried out. The results showed that there were two trends in the spatial dynamic trend of prickly ash rust in Sichuan Province: In the low-altitude areas, the disease index kept rising until the end of September, and then decreased slightly in October, The disease index had a maximum of 81.26 in mid-November, and then decreased gradually; In the high-altitude areas, the disease index increased continuously to a peak of 85.68 before mid-to-late September, and then decreased slowly; In different Sichuan pepper varieties, the disease indices of ‘Zhenglujiao’ and ‘Dahongpao’ were more serious than that of ‘Jiuyeqing’; In terms of field control effect, the mixed treatment of 75% trifloxystrobin ·tebuconazole with 3000 dilution and 30% pyraclostrobin ·tebuconazole with 1500 dilution showed the best control effect on Prickly ash rust, the average control effect was 80.71%, and the control effect on ‘Jiuyeqing’ was higher than that onZhenglujiao’. This study showed that prickly ash rust was more prevalent in the low-altitude area of Sichuan, ‘Jiuyeqing’ was more resistant to prickly ash rust than ‘Zhenglujiao’ and ‘Dahongpao’, the mixtures of 75% trifloxystrobin · tebuconazole and 30% pyraclostrobin · tebuconazole were screened as the control agents of prickly ash rust for the first time in Sichuan Province.
Review and Monograph
Strategies, Actions and Enlightenment of Urban Forest Construction and Management in the United States
PENG Linlin
2022, 43(2): 145-150. doi: 10.12172/202107210001
Abstract:
Urban forest system is an important part of urban ecosystem and an important foundation and guarantee for the healthy development of cities. By combining with cases, the relevant background, specific strategies and actions related to urban forest construction in the U.S. were analyzed, and several features and key points of urban forest construction and management in recent years were summarized. It pointed out that in the process of urban forest construction and management, special attention was paid to the foundation management of urban forest, the combination of urban forest and stormwater management, and the implementation of public participation. Finally, the problems existing in the development of urban forest in China were analyzed, and relevant suggestions by learning from the advanced experience of the United States were put forward, so as to provide reference for urban forest management in China.
Review and Monograph
Study on the Butterfly Fauna of Baotianman National Nature Reserve
CHEN Liangfu, TIAN Ye, JIANG Peng, WU Fuhua
2022, 43(2): 151-158. doi: 10.12172/202105310002
Abstract:
In order to fully understand the species and fauna of butterflies in Baotianman National Nature Reserve, through field investigation, Baotianman butterfly fauna was characterized by the Oriental fauna and the over-intersection of the North-South species, in which the Oriental realm occupied 58% of the total population, and the Palaearctic realm and the Holarctic realm accounted for 9% of the total investigated population. According to the data analysis, the butterfly fauna in Baotianman Nature Reserve are mainly of northern subtropical zone of China, which is significantly different from the traditional temperate butterfly fauna of China.
Review and Monograph
Conchidium Griff, A Newly Recorded Genus of Orchidaceae in Sichuan, China
CHENG Yuehong, JIN Senlong, TAN Yingchun, LIN Hongqiang, HE Xiaoping, PENG Shuai, HU Guangwan
2022, 43(2): 159-161. doi: 10.12172/202108120001
Abstract:
Conchidium Griff (Orchidaceae) was reported as a newly recorded genus in Sichuan, China. There are about ten species of Conchidium Griff in global, including five species in China. The species, Conchidium japonicum (Maxim) S. C. Chen & J. J. Wood was first recorded in Hengduan Mountains in Sichuan. The morphological description and photos of this species were also provided, and the voucher specimens were stored in the Herbarium of Wuhan Botanical Garden, Chinese Academy of Sciences (HIB).
Review and Monograph
Berberis haoi, A New Record of Berberidaceae Species in Sichuan Province, China
LIU Furong, WANG Haifeng, LUO Jianxun, DU Yangping
2022, 43(2): 162-164. doi: 10.12172/202106290002
Abstract:
This paper reported the Berberis haoi Ying species, a newly recorded Berberidaceae species in Jiuzhaigou county, Sichuan province. The new distribution point provided new record data for Berberis haoi Ying, and further enriched the biodiversity data of Sichuan province.
Review and Monograph
A New Record of Acanthaceae Plants (Strobilanthes affinis) in Sichuan Province, China
LUO Yao, LIU Qiurong, LI Li, HU Jun
2022, 43(2): 165-167. doi: 10.12172/202107190004
Abstract:
This paper reported a newly recorded species of Strobilanthes affinis (Griff.) Y. C. Tang of Acanthaceae Strobilanthes in Sichuan province, which was distributed in the forest or at the edge of Quercus acutissima and Quercus variabilis forests in the middle of Longquan Mountains region. The results provided new data for the study of the flora in Longquan Mountains, and enriched the plant diversity in Sichuan province.