干旱区生态环境知识资源中心(Arid): 短期封育对蒿类荒漠草地现存生物量及植物群落多样性的影响

Arid

	短期封育对蒿类荒漠草地现存生物量及植物群落多样性的影响
其他题名	Effects of short-term grazing exclusion on standing biomass and plant community diversity in sagebrush desert
	崔雨萱; 孙宗玖; 刘慧霞; 董乙强
来源期刊	草业学报
ISSN	1004-5759
出版年	2020
卷号	29 期号:12 页码:17-26
中文摘要	为明确荒漠草地植物群落特征对短期封育的适应情况,采用成对试验设计,研究短期封育对天山北坡不同区域蒿类荒漠草地地上活体生物量、凋落物生物量、地下生物量及其植物群落多样性的影响。结果表明:封育后新源、玛纳斯、呼图壁、奇台等地的蒿类荒漠草地地上活体生物量较放牧区(CK)分别显著增加98.91% 、65.99%、246.66%、91.91%,而博乐的变化不显著。封育后半灌木地上活体生物量较CK显著提高65.56%~265.47%,而多年生草本、一年生草本类因所处样地差异而有所不同。封育促进蒿类荒漠草地地下生物量的积累,仅博乐、呼图壁样地较CK显著增加65.16%~151.89%, 且主要集中在0~5 cm,但封育对所有样地凋落物生物量的积累影响不显著。封育后博乐样地Shannon-Wiener指数、Simpson指数、Pielou指数较CK分别显著增加15.12%、14.88%、11.54%;新源样地Patrick指数、Shannon-Wiener指数、Simpson指数、Pielo u指数较CK分别显著降低62.12%、64.54%、58.02%、34.81%;玛纳斯样地的Patrick指数较CK显著降低32.48%,而Pi elou指数较CK显著增加21.90%;呼图壁样地的Shannon-Wiener指数、Simpson指数较CK分别显著降低73.21%、68.6 9%;而奇台样地的群落多样性没有显著影响。总体看,短期封育利于退化蒿类荒漠草地生物量的积累,而对植物群落多样性的影响因地区不同而不同。
英文摘要	This research explored the adaptation of plant communities in desert grassland to short-term grazing exclusion.Using a paired experimental design,we determined the effects of short-term grazing exclusion on aboveground biomass,litter,underground biomass,and diversity of plant communities in sagebrush desert grassland on northern slopes in different regions of the Tianshan Mountains.Compared with grazed plots,the ungrazed plots in sagebrush desert grassland in Xinyuan,Manas,Hutubi,and Qitai showed significant increases in aboveground living biomass(98.91%,65.99%,246.66%,and 91.91%,respectively),but there was no significant change at the Bole site.After grazing exclusion,the aboveground living biomass of semi-shrubs increased significantly by 65.56% to 265.47%,and the size of the increase in the biomass of perennial herbs and annual herbs differed among different plots.Grazing exclusion promoted the accumulation of underground biomass in sagebrush desert grassland at the Bole and Hutubi sites(increases of 65.16%-151.89%),and this was mainly concentrated in the 0-5 cm soil layer.Grazing exclusion did not significantly affect litter accumulation in any of the plots.After grazing exclusion,the Shannon-Wiener index,Simpson's index,and the Pielou index of the plant community in the Bole plots increased by 15.12%,14.88%,and 11.54%,respectively;the Patrick index,Shannon-Wiener index,Simpson's index,and the Pielou index of the plant community in the Xinyuan plots decreased significantly by 62.12%,64.54%,58.02%,and 34.81%,respectively;the Patrick index of the plant community in the Manas plots significantly decreased by 32.48% and the Pielou index increased significantly by 21.90%;and the Shannon- Wiener index and Simpson's index in the Hutubi plots decreased by 73.21% and 68.69%,respectively.Grazing exclusion did not affect the diversity of the plant community in the Qitai plots.Our results show that short-term grazing exclusion promotes the accumulation of biomass in degraded Artemisia desert grasslands,but its impacts on plant community diversity vary from region to region.
中文关键词	短期封育 ; 蒿类荒漠 ; 生物量 ; 物种多样性 ; 植物功能群 ; 天山北坡
英文关键词	grazing exclusion sagebrush desert biomass plant diversity plant functional group the northern slopes of the Tianshan Mountains
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6864702
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/2XILL650/353365
作者单位	崔雨萱, 新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国. 刘慧霞, 新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国. 孙宗玖, 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;;西部干旱区草地资源与生态教育部重点实验室, ;;新疆草地资源与生态自治区重点实验室;;西部干旱区草地资源与生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, 新疆;;新疆;;新疆 830052;;830052;;830052, 中国. 董乙强, 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;;西部干旱区草地资源与生态教育部重点实验室, ;;新疆草地资源与生态自治区重点实验室;;西部干旱区草地资源与生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, 新疆;;新疆;;新疆 830052;;830052;;830052, 中国.
推荐引用方式 GB/T 7714	崔雨萱,孙宗玖,刘慧霞,等. 短期封育对蒿类荒漠草地现存生物量及植物群落多样性的影响[J]. 新疆农业大学,2020,29(12):17-26.
APA	崔雨萱,孙宗玖,刘慧霞,&董乙强.(2020).短期封育对蒿类荒漠草地现存生物量及植物群落多样性的影响.草业学报,29(12),17-26.
MLA	崔雨萱,et al."短期封育对蒿类荒漠草地现存生物量及植物群落多样性的影响".草业学报 29.12(2020):17-26.