干旱区生态环境知识资源中心(Arid): 封育对沙质荒漠草地植被特征及稳定性影响

Arid

	封育对沙质荒漠草地植被特征及稳定性影响
其他题名	Effects of Enclosure on Vegetation Characteristics and Stability of Sandy Desert Grassland
	杨静 1; 孙宗玖 2; 柴艳 1
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2017
卷号	39 期号:3 页码:65-71,108
中文摘要	以脆弱沙质荒漠草地为对象,研究封育年限(封育3年、封育5年、封育8年及对照)对沙质荒漠草地群落植被特征、物种多样性、主要物种重要值及草地群落稳定性的影响,为沙质荒漠草地恢复,寻找合理封育年限提供依据。结果表明:封育后沙质荒漠草地物种丰富度、Simpson指数、Shannon-wiener指数均显著增长,至封育8年分别从2.8、0.53、0.88增加到4.2、0.65、1.21,Pielou均匀度指数降低;群落生物量、高度和密度均显著增加,分别增加了31.50%~155.03%、25.42%~54.24%、34.91%~66.40%;封育后建群种沙漠绢蒿始终占优势,重要值最大达到0.57,角果藜重要值下降,猪毛菜重要值升高;群落稳定性表现为:封育8年>封育5年>封育3年>对照。因此,封育提高了沙质荒漠草地群落多样性,增加了群落的稳定性。
英文摘要	In order to provide a basis for the recovery and to find a reasonable period of enclosure years, the influence of different enclosure years on vegetation characteristics, the species diversity, main vegetation importance values and community stability of fragile sandy desert grassland was studied. The results showed that species richness, Simpson index and Shannon-wiener index increased significantly;enclosed for 8 years the species richness was increased from 2.8 to 4.2, Simpson index from 0.53 to 0.65, and Shannon-wiener index from 0.88 to 1.21, while the Pielou index decreased. The vegetation biomass, height and density increased significantly by 31.50%~155.03%,25.42%~54.24%,34.91%~66.40%,respectively. Constructive species Seriphidiam santolinum had an important proportion all the time and added up to 0.57 after enclosure. The important values of Ceratocarpus arenarius declined and the importance values of Salsola collina increased with increase of enclosure years. The community stability enclosed for 8 years was superior to that enclosed for 5 years, that enclosed for 5 years was greater than that enclosed for 3 years, and better than grazing. Therefore, the species diversity and stability were improved with the increase of enclosure years.
中文关键词	沙质荒漠 ; 多样性 ; 植被特征 ; 重要值 ; 群落稳定性
英文关键词	Sandy desert Diversity Vegetation characteristics Importance values Community stability
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:5996723
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236992
作者单位	1.新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆农业大学草业与环境科学学院, 新疆草地资源与生态自治区重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	杨静,孙宗玖,柴艳. 封育对沙质荒漠草地植被特征及稳定性影响[J]. 新疆农业大学,2017,39(3):65-71,108.
APA	杨静,孙宗玖,&柴艳.(2017).封育对沙质荒漠草地植被特征及稳定性影响.中国草地学报,39(3),65-71,108.
MLA	杨静,et al."封育对沙质荒漠草地植被特征及稳定性影响".中国草地学报 39.3(2017):65-71,108.