干旱区生态环境知识资源中心(Arid): Effects of grazing and enclosure management on soil physical and chemical properties vary with aridity in China's drylands

Arid

DOI	10.1016/j.scitotenv.2023.162946
	Effects of grazing and enclosure management on soil physical and chemical properties vary with aridity in China's drylands
	Zhou, Wenxin; Li, Changjia; Wang, Shuai; Ren, Zhuobing; Stringer, Lindsay C.
通讯作者	Li, CJ
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	877
英文摘要	Dryland soils are nutrient-poor and prone to degradation due to aridity, grazing and enclosure. It is essential to exam-ine the effects of grazing and enclosure on aridity-induced soil degradation in dryland ecosystems to optimize land management practices in response to climate change. However, quantitative evaluation on this topic is scarce due to a lack of long-term field monitoring data. This study evaluated the combined effects of aridity and grazing/enclosure using long-term data (2005-2015) from three research stations on soil physical and chemical properties in typical steppes and desert steppes across the semi-arid and hyper-arid areas of China's drylands. Results showed that soil or-ganic matter (OM) content was higher for enclosures (20.50 g/kg) than for grazing (19.06 g/kg). In the semi-arid steppe, enclosures aged 30-33 years had the highest soil total nitrogen (TN) content (1.21 g/kg). Longer enclosures aged 34-36 years showed decreased soil TN content (0.88 g/kg). In the desert steppe, enclosures aged 5-8 years ex-hibited the highest soil OM (2.44 g/kg) and TN (0.21 g/kg) contents. Grazing enhanced the decrease of OM content (from 4.57 to 2.39 g/kg) with increasing aridity (1 - aridity index) from 0.35 to 1. These findings indicate that enclo-sures can improve soil fertility, but prolonged enclosures may have negative effects. Grazing had a synergistic effect on the decrease of OM with aridity. Results can be used in response to climate changes to formulate sustainable land man-agement strategies, such as reducing the enclosure period in wetter and restored areas, and diminishing the grazing intensity in areas with higher aridity.
英文关键词	Soil characteristic Rangeland Fence off Land use Semi -arid steppe Desert steppe
类型	Article
语种	英语
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:001007044000001
WOS关键词	INNER-MONGOLIA ; LAND-USE ; ORGANIC-CARBON ; ECOSYSTEM STRUCTURE ; PLANT DIVERSITY ; CLIMATE-CHANGE ; EXCLUSION ; GRASSLAND ; IMPACTS ; INTENSITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398521
推荐引用方式 GB/T 7714	Zhou, Wenxin,Li, Changjia,Wang, Shuai,et al. Effects of grazing and enclosure management on soil physical and chemical properties vary with aridity in China's drylands[J],2023,877.
APA	Zhou, Wenxin,Li, Changjia,Wang, Shuai,Ren, Zhuobing,&Stringer, Lindsay C..(2023).Effects of grazing and enclosure management on soil physical and chemical properties vary with aridity in China's drylands.SCIENCE OF THE TOTAL ENVIRONMENT,877.
MLA	Zhou, Wenxin,et al."Effects of grazing and enclosure management on soil physical and chemical properties vary with aridity in China's drylands".SCIENCE OF THE TOTAL ENVIRONMENT 877(2023).