干旱区生态环境知识资源中心(Arid): 围栏封育和放牧对盐池荒漠草原植物群落特征的影响

Arid

	围栏封育和放牧对盐池荒漠草原植物群落特征的影响
其他题名	Effects of Enclosure and Grazing on the Characteristics of Plant Communities in Desert Steppe of Yanchi
	吴婷; 宋乃平; 陈晓莹; 李敏岚; 陈娟
来源期刊	草地学报
ISSN	1007-0435
出版年	2019
卷号	27 期号:3 页码:651-660
中文摘要	为揭示围栏封育和围栏放牧对荒漠草原植物群落的影响,寻找荒漠草原保护与利用相结合的出路,本试验在宁夏盐池县荒漠草原选取3对封育围栏与放牧围栏,对封育围栏和相邻放牧围栏的本底条件一致的灰钙土和风沙土样带采用样线法开展植物群落样方调查,运用多样性指数等对植物群落多样性特征进行分析。结果表明,在物种水平上,灰钙土上以多年生禾本科植物为主,风沙土上以一、二年生菊科为优势群落。封育围栏群落物种组成趋于稳定状态,而放牧围栏群落还处于不稳定的演替初期。围栏封育有利于提高荒漠草原植物群落的生物量、高度和盖度;灰钙土上植物的生长量显著高于风沙土。在植物物种相对较少的荒漠草原,封育禁牧能改变群落的物种结构,但不能显著增加多样性;有利于提高风沙土上的物种多样性。相对于围栏放牧,围栏封育更有利于维持该地区生态系统的稳定。
英文摘要	In order to reveal the effects of enclosure and grazing on plant communities in the desert steppe and find the way of conservation and utilization of desert steppe,three pairs of enclosed grasslands and grazing grasslands were selected in the desert steppe of Yanchi County,Ningxia,to investigate the planting community.The selected area was the sierozem soil and aeolian sandy soil land with the same topography, soil and vegetation conditions.Based on the sample survey,the diversity characteristics of the plant community were analyzed using the diversity index.The results showed that at the species level,the perennial grasses were mainly dominated on the sierozem soil,and the annuals and biennials were the dominant community on the aeolian sandy soil.The species composition in the enclosed grassland tended to be stable, while the grazing grassland community was still in the early stage of unstable succession.Fence enclosure was conducive to improving the biomass,height and coverage of plant communities in desert steppe;the growth of plants on sierozem soil was significantly higher than that on aeolian sandy soil.In the desert steppe with relatively few plant species,the grazing prohibition changed the species structure of community, but it did not significantly increase the diversity;it was beneficial to improve the species diversity on the aeolian sandy soil.Compared to grazing treatment,enclosure was more conducive to maintaining the stability of the ecosystem in the region.
中文关键词	围栏封育 ; 围栏放牧 ; 植物群落特征 ; 荒漠草原
英文关键词	Enclosure Grazing Plant community characteristics Desert steppe
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6542947
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238944
作者单位	西北土地退化与生态恢复国家重点实验室培育基地/西北退化生态系统恢复与重建教育部重点实验室, 西北土地退化与生态恢复国家重点实验室培育基地;;西北退化生态系统恢复与重建教育部重点实验室, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	吴婷,宋乃平,陈晓莹,等. 围栏封育和放牧对盐池荒漠草原植物群落特征的影响[J],2019,27(3):651-660.
APA	吴婷,宋乃平,陈晓莹,李敏岚,&陈娟.(2019).围栏封育和放牧对盐池荒漠草原植物群落特征的影响.草地学报,27(3),651-660.
MLA	吴婷,et al."围栏封育和放牧对盐池荒漠草原植物群落特征的影响".草地学报 27.3(2019):651-660.