干旱区生态环境知识资源中心(Arid): Effects of grazing exclusion on spring and autumn pastures in arid regions of China: Insights from field surveys and landsat images

Arid

DOI	10.1016/j.agee.2021.107302
	Effects of grazing exclusion on spring and autumn pastures in arid regions of China: Insights from field surveys and landsat images
	Tai, Xiaoli; Epstein, Howard E.; Li, Bo
通讯作者	Li, B (corresponding author), Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China.
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2021
卷号	310
英文摘要	Overgrazing has caused serious grassland degradation, and grazing exclusion (GE) has been considered an effective and economic approach for restoring vegetation and soils in degraded grassland. In this study, we evaluated the ecosystem restoration of two types of degraded spring and autumn pasture in arid regions of northwest China, based on field surveys (community structure characteristics, soil C and N) and Landsat images (greenness and wetness). In temperate typical steppe (TS), our findings indicated that GE significantly increased plant height, coverage, biomass, soil C and N, as well as greenness and wetness values from Landsat images, however GE decreased plant density and species diversity. Restoration on greenness and wetness peaked in the fourth and fifth years, respectively, following GE. The restoration of greenness and wetness showed bimodal curves during growing season. In temperate desert (TD), results revealed that community structure characteristics, greenness, and wetness improved after GE, and the restoration of greenness and wetness increased with duration of GE. Soil C and N however, did not recover significantly after six years of GE. The restoration of greenness and wetness remained stable during growing-season months. Our findings suggest that longer GE might be considered in the restoration of TD, whereas short-term (not more than 4-5 years) GE, reduction in the livestock load or mowing regularly may be more appropriate for TS. Decision to adopt measures of GE and the duration of GE should be reasonably determined according to the specific grassland type. This research can provide guidance for the restoration of degraded grassland ecosystems in arid and semi-arid regions all over the world.
英文关键词	Grazing exclusion Arid regions Community structure Greenness Wetness
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000615985000013
WOS关键词	PLANT-SPECIES DIVERSITY ; GRASSLAND DEGRADATION ; LOESS PLATEAU ; LIVESTOCK EXCLUSION ; COMMUNITY STRUCTURE ; CAP TRANSFORMATION ; SEMIARID GRASSLAND ; ALPINE GRASSLANDS ; VEGETATION COVER ; ORGANIC-CARBON
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349356
作者单位	[Tai, Xiaoli; Li, Bo] Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China; [Tai, Xiaoli; Epstein, Howard E.] Univ Virginia, Dept Environm Sci, Charlottesville, VA 22903 USA
推荐引用方式 GB/T 7714	Tai, Xiaoli,Epstein, Howard E.,Li, Bo. Effects of grazing exclusion on spring and autumn pastures in arid regions of China: Insights from field surveys and landsat images[J]. 北京师范大学,2021,310.
APA	Tai, Xiaoli,Epstein, Howard E.,&Li, Bo.(2021).Effects of grazing exclusion on spring and autumn pastures in arid regions of China: Insights from field surveys and landsat images.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,310.
MLA	Tai, Xiaoli,et al."Effects of grazing exclusion on spring and autumn pastures in arid regions of China: Insights from field surveys and landsat images".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 310(2021).