Characteristics of Plant Community Changes during the Restoration of Alpine Desertified Grassland in Northwest Sichuan

HU Lian-tong; MAO Ying; HU Jin-yao; DAWA La-mu

doi:10.16779/j.cnki.1003-5508.2019.05.003

Grassland desertification is one of the serious environmental problems in China, but the research on grassland desertification mainly focuses on the effects of soil nutrient and enclosure on plants, but there are few concerns and researches on the changes of plant communities in the process of grassland desertification in China. Through field investigations, studies were made of the variation characteristics of plant communities during the desertification process of alpine grassland in northwestern Sichuan. The researches have shown that:(1) There are 33 species in the survey plot, belonging to 17 families and 29 genera; (2) the species richness index is also increasing with the increase of the repair period, but the species diversity change index and species uniformity index increase first and then decreas with the increase of the repair period; (3) The TWINSPAN quantity classification divides the plant community of the Zoige restoration site into 11 types; (4) The first axis of the sample DCA ranking basically reflects the change gradient of the repair period, The two axes basically reflect the change in altitude.

1. Environment Engineering Technology Research Center, Mianyang Teacher's College, Mianyang 621000, China;

2. Forestry and Grassland Bureau of Derong County, Derong 627950, China

Received Date: 2019-07-25

Key words:

Abstract: Grassland desertification is one of the serious environmental problems in China, but the research on grassland desertification mainly focuses on the effects of soil nutrient and enclosure on plants, but there are few concerns and researches on the changes of plant communities in the process of grassland desertification in China. Through field investigations, studies were made of the variation characteristics of plant communities during the desertification process of alpine grassland in northwestern Sichuan. The researches have shown that:(1) There are 33 species in the survey plot, belonging to 17 families and 29 genera; (2) the species richness index is also increasing with the increase of the repair period, but the species diversity change index and species uniformity index increase first and then decreas with the increase of the repair period; (3) The TWINSPAN quantity classification divides the plant community of the Zoige restoration site into 11 types; (4) The first axis of the sample DCA ranking basically reflects the change gradient of the repair period, The two axes basically reflect the change in altitude.

HTML

Reference (24)

[1]	UN.United Nations Conventionto Combat Desertification in Those Countries Experiencing Serious Droughtand/or Desertification Particularlyin Africa[Z].1994.
[2]	吕世海.呼伦贝尔沙化草地系统退化特征及围封效应研究[D].北京:北京林业大学, 2005.
[3]	吕世海,卢欣石.呼伦贝尔草地风蚀沙化植被生物多样性研究[J].中国草地学报,2006(04):6~10+23.
[4]	吴旭东,宋乃平,潘军.沙质草地生境中植物群落对土壤质地演进的响应[J].水土保持学报,2016,30(03):285~290	+304.
[5]	张金屯.数量生态学[M].第三版.北京:科学出版社,2018.
[6]	姚帅臣,王景升,丁陆彬,等.拉萨河谷草地群落的数量分类与排序[J].生态学报,2018,38(13):4779~4788.
[7]	彭佳佳. 川西北沙化草地不同生态恢复年限植被和土壤有机碳、氮变化研究[D].四川农业大学,2016.
[8]	舒向阳,胡玉福,蒋双龙,等.川西北沙化草地植被群落、土壤有机碳及微生物特征[J].草业学报,2016,25(04):45~54.
[9]	郑翠玲,曹子龙,王贤,赵廷宁,等.围栏封育在呼伦贝尔沙化草地植被恢复中的作用[J].中国水土保持科学,2005(03):78~81.
[10]	吕世海,冯长松,高吉喜,等.呼伦贝尔沙化草地围封效应及生物多样性变化研究[J].草地学报,2008(05):442~447.
[11]	刘小丹,张克斌,王黎黎,等.封育对半干旱区沙化草地群落特征的影响[J].北京林业大学学报,2015,37(02):48~54.
[12]	郑华平,陈子萱,王生荣,等.施肥对玛曲高寒沙化草地植物多样性和生产力的影响[J].草业学报,2007(05):34~39.
[13]	陈子萱. 人工扰动对玛曲高寒沙化草地植物多样性和生产力的影响[D].甘肃农业大学,2008.
[14]	周家福,干友民,李志丹,等.川西北高寒草地退化演替群落的数量分类与排序[J].湖北农业科学,2008(02):207~210.
[15]	张顺谦,郭海燕,罗勇.气候变化和载畜量对若尔盖草地沙化的驱动力评价[J].中国草地学报,2007(05):64~71.
[16]	赵建,朱建清,张杰,等.若尔盖退化、沙化草地的治理[J].四川草原,2004(01):13~16.
[17]	王艳,杨剑虹,潘洁,等.川西北高寒草原退化沙化成因分析——以红原县为例[J].草原与草坪,2009(01):20~26.
[18]
[19]	刘朔,蔡凡隆,杨建勇,等.川西北沙化治理现状及治理区划[J].林业调查规划,2011,36(03):122~126.
[20]	税伟,白剑平,简小枚,等.若尔盖沙化草地恢复过程中土壤特性及水源涵养功能[J].生态学报,2017,37(01):277~285.
[21]	马克平,刘玉明.生物群落多样性的测度方法Ⅰα多样性的测度方法(下)[J].生物多样性,1994(04):231~239.
[22]	中国植被编辑委员会. 中国植被[M]. 北京:科学出版社, 1983:43~56.
[23]	屈兴乐,方江平.不同修复年限退化草地植物群落的物种多样性和稳定性[J].高原农业,2018,2(03):220~229
[24]	董倩,李素清.安太堡露天煤矿区复垦地不同植被下草本植物群落生态关系研究[J].中国农学通报,2018,34(04):95~100.

Characteristics of Plant Community Changes during the Restoration of Alpine Desertified Grassland in Northwest Sichuan

doi: 10.16779/j.cnki.1003-5508.2019.05.003

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views