干旱区生态环境知识资源中心(Arid): 半干旱区人工封育草地植被动态研究以宁夏盐池县为例

Arid

	半干旱区人工封育草地植被动态研究以宁夏盐池县为例
其他题名	Study on the Dynamics of Artificial Fenced Grassland Vegetation,Ningxia Yanchi County,Semi-arid Regions of China
	冯湘; 刘宝军; 刘建康; 马莉; 张克斌
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2020
卷号	29 期号:10 页码:1961-1970
中文摘要	人工封育是保护和恢复退化草场的一种重要措施,对草地植被动态有着重要的影响。为研究半干旱区长期人工封育草地植物种群生态位变化,以宁夏盐池县人工封育区3种不同处理方式(长期完全封育、短期完全封育、短期不完全封育)草地为研究对象,将封育区分为核心区(E区)、边缘区(E1区)、外围区(E2区), 沿样线每隔30 m随机布设1m*1m的样方,分别调查样方内植物种类、株数、高度、盖度等。通过分析该区域2008年、2013年、2018年出现的植物种群的重要值、 Shannon-Wiener生态位宽度指数和Pianka生态位重叠指数,对植物种群在荒漠环境下的变化规律进行探究。结果表明,(1)阿尔泰狗娃花( Heteropappus altaicus)在各区内都有较高的生态位宽度,该物种能较好地适应封育区的环境,并能很好利用封育区资源。(2)生态位宽度较大的物种在生态位重叠上并不总是有较高的生态位重叠值,即生态位宽度与生态位重叠之间并没有明显的线性关系。(3)随着封育时间的增加,群落稳定性表现为E1区>E2区>E区, 长期完全封育不利于植物群落的稳定性。该研究可以为分析该地区群落稳定性提供依据,为制定草地利用措施提供参考。
英文摘要	Fencing is an important tool to protect and restore degraded grassland,having also an important influence on the vegetation dynamics of grasslands.In order to study the niche changes of long-term fenced grassland plant population,three different measures (long-term complete fencing,short-term complete fencing and short-term partial fencing) were taken in Ningxia Yanchi County,semi-arid regions of China.Three sample plots;core area (E plot),edge area (E1 plot),and peripheral area (E2 plot) were taken to achieve the study objectives.In each sample plot 1 m~2 quadrat was randomly selected every 30 m and different parameters like,plants species,total number of plants,height and cover were noted.The main objective of this study was to investigate about the changing pattern of plant population in desert environment by analyzing the important value of plant populations,Shannon-Wiener niche breadth index and Pianka niche overlapping index in year 2008,2013 and 2018.Our results revealed that:(1) Heteropappus altaicus in all areas have a higher niche breadth,it can better adapt to the environment of the fencing area,and can make good use of the fencing area resources;(2) The species with large niche breadth do not always have higher niche overlapping.There is no significant linear relationship between niche breadth and niche overlapping;And (3) with the increase of fencing time,the stability of the community is shown as:E1>E2>E.Long-term complete fencing is not conducive to the stability of plant communities in this region.This study can provide a basis for analyzing the stability of community in the area and a reference for the specified reasonable grassland utilization measures.
中文关键词	半干旱区 ; 人工封育 ; 生态位宽度 ; 生态位重叠 ; 草原植被
英文关键词	fencing niche breadth niche overlapping grassland vegetation
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Plant Sciences
CSCD记录号	CSCD:6866274
来源机构	宁夏大学 ; 北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353735
作者单位	冯湘, 北京林业大学水土保持学院, 北京 100083, 中国. 马莉, 北京林业大学水土保持学院, 北京 100083, 中国. 张克斌, 北京林业大学水土保持学院, 北京 100083, 中国. 刘宝军, 国家林业和草原局西北调查规划设计院, 西安, 陕西 710048, 中国. 刘建康, 宁夏大学, 西北土地退化与生态恢复国家重点实验室培育基地, 银川, 宁夏 750021, 中国.
推荐引用方式 GB/T 7714	冯湘,刘宝军,刘建康,等. 半干旱区人工封育草地植被动态研究以宁夏盐池县为例[J]. 宁夏大学, 北京林业大学,2020,29(10):1961-1970.
APA	冯湘,刘宝军,刘建康,马莉,&张克斌.(2020).半干旱区人工封育草地植被动态研究以宁夏盐池县为例.生态环境学报,29(10),1961-1970.
MLA	冯湘,et al."半干旱区人工封育草地植被动态研究以宁夏盐池县为例".生态环境学报 29.10(2020):1961-1970.