干旱区生态环境知识资源中心(Arid): 封育方式对荒漠草原群落特征及土壤理化性质的影响

Arid

	封育方式对荒漠草原群落特征及土壤理化性质的影响
其他题名	Effects of Enclosure Regimes on Community Characteristics and Soil Physicochemical Properties in Desert Grasslands
	刘建康; 张克斌; 冯湘; 刘新月
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2021
卷号	30 期号:3 页码:1674-5906
中文摘要	近年来中国大部分草地正发生不同程度退化,如何恢复退化草地已成为亟待解决的环境问题。围栏封育作为西北地区退化草地的主要恢复措施之一,其生态过程一直是生态学者的研究重点。为研究不同封育方式对退化荒漠草原生态系统的影响,以宁夏荒漠草原11年和22年完全封育、11年生长季封育、和自由放牧草地为研究对象,采用野外样方法和室内分析相结合的方法,分析研究其植被群落特征及土壤理化性质变化。研究结果表明:(1)封育能增加群落地上生物量和Shannonwiener多样性指数,并增强群落稳定性,但不能显著改善群落Simpson指数(P>0.05),并降低了群落丰富度指数R;(2) 22-24年完全封育草地多年生植物及总地上生物量显著低于(P<0.05),且其Shannon-wiener和Simpson指数低于11-13年的生长季封育草地,2014及2015年一年生、多年生植物及总地上生物量均高于2013年;(3)群落的各alpha多样性指数与稳定性指数的关系较复杂,两者之间相关性不显著(P>0.05);(4)封育能显著增加(P<0.05)土壤有机质、全氮、全磷等物质含量,但降低了土壤含水量。该研究指出封育年限及管理方式是影响群落结构和土壤性状的主要因素,研究结果可为干旱、半干旱草原地区植被恢复及可持续经营与管理理论提供支持与指导。
英文摘要	In recent years, most of grasslands are facing different degrees of degradation in China. How to restore degraded grasslands has become an urgent environment problem to be solved. Enclosure is one of the main recovery measures for recover regressive grasslands. The ecological process after fencing has always been the research focus of ecologists. Four sample sites, completely fencing of 11 years (FG) and 22 years (LG), fencing in growing season of 11 years (SG), and free grazing (CG), were selected to study the effects of different enclosure regimes on desert grasslands ecosystem. Plant community characteristics and soil physicochemical properties were investigated. The results showed that enclosure increased aboveground biomass (AGB) and Shannon-Weiner index, and improved community stability index, while could not increase Simpson index obviously (P>0.05), or even decreased Richness index. The AGB of perennial herbs and total grass in LG were significantly lower (P<0.05) than FG, and the Shannon-wiener and Simpson index in both were lower than in SG. The AGB of annual herbs, perennial herbs and total grass in 2014 and 2015 year were higher than in 2013 year. The correlation between species diversity and community stability were not significantly (P>0.05). Enclosure could significantly increase the content of soil organic matter, total nitrogen, and total phosphorus (P<0.05), while reduced soil water content. The research suggested that fencing time and management regimes were the main factors affecting community structure and soil physicochemical properties. This study could provide theoretical support and guidance for vegetation restoration and sustainable management on arid and semi-arid grassland region.
中文关键词	荒漠草原 ; 封育 ; 物种多样性 ; 群落稳定性 ; 土壤理化性质
英文关键词	desert grasslands fencing species diversity community stability soil physicochemical properties
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Plant Sciences
CSCD记录号	CSCD:6970582
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/2XILL650/365220
作者单位	刘建康, 宁夏大学;;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;;西北退化生态系统恢复与重建教育部重点实验室, 银川;;银川, 宁夏;;宁夏 750021;;750021, 中国.; 张克斌, 北京林业大学, 水土保持国家林业局重点实验室;;林业生态工程教育部工程研究中心, 北京 100083, 中国.; 冯湘, 北京林业大学, 水土保持国家林业局重点实验室;;林业生态工程教育部工程研究中心, 北京 100083, 中国.; 刘新月, 北京林业大学, 水土保持国家林业局重点实验室;;林业生态工程教育部工程研究中心, 北京 100083, 中国.
推荐引用方式 GB/T 7714	刘建康,张克斌,冯湘,等. 封育方式对荒漠草原群落特征及土壤理化性质的影响[J]. 宁夏大学, 北京林业大学,2021,30(3):1674-5906.
APA	刘建康,张克斌,冯湘,&刘新月.(2021).封育方式对荒漠草原群落特征及土壤理化性质的影响.生态环境学报,30(3),1674-5906.
MLA	刘建康,et al."封育方式对荒漠草原群落特征及土壤理化性质的影响".生态环境学报 30.3(2021):1674-5906.