干旱区生态环境知识资源中心(Arid): Responses of soil nutrient and enzyme activities to long-term mulched drip irrigation (MDI) after the conversion of wasteland to cropland

Arid

DOI	10.1016/j.apsoil.2023.104976
	Responses of soil nutrient and enzyme activities to long-term mulched drip irrigation (MDI) after the conversion of wasteland to cropland
	Tan, Mingdong; Zong, Rui; Lin, Haixia; Dhital, Yam Prasad; Ayantobo, Olusola O.; Chen, Pengpeng; Li, Haiqiang; Chen, Rui; Wang, Zhenhua
通讯作者	Wang, ZH
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2023
卷号	190
英文摘要	Soil nutrients and enzymes are essential indicators of ecological functions in terrestrial ecosystem and are also sensitive to land-use change. However, the response of soil nutrients and enzymes to long-term mulched drip irrigation (MDI) in the conversion of agroecosystems is still limited. In this study, we analyzed soil nutrient concentrations and enzyme activities at a soil depth of 0-40 cm in four typical cotton fields with different durations of MDI (8, 12, 16, and 22 years) and a wasteland (CK) as control. After the conversion of saline-alkali wasteland into cotton fields, we found that soil electrical conductivity (EC) and pH significantly decreased, but the concentrations of available soil phosphorus (AP), total carbon (TC), soil organic carbon (SOC) and total nitrogen (TN) significantly increased with increasing years of MDI application. Soil enzymes, such as polyphenol oxidase, catalase, urease, alkaline phosphatase, and cellulase were more active in the subsoil than in the topsoil. Compared to the wasteland, a significant reduction of soil enzyme activities (polyphenol oxidase, catalase, and cellulase) appeared in the young cotton field, which gradually reestablished after practicing long-term MDI. Based on redundancy analysis, the variations of the enzyme activities were obtained by pH (38.7 %), C/N (27.6 %), EC (20.9 %), TN (4.9 %), and NO3  -N (3.1 %) at 0-20 cm depth; and by AP (43.7 %), SWC (18.4 %), pH (12.6 %), and TN (12.5 %) at 20-40 cm depth. Long-term MDI has a positive effect on reducing soil salinity, increasing nutrient content in cotton fields, and can accelerate the activities of nutrient-releasing enzymes, which partly confirm the sustainability of MDI in oasis agroecosystems.
英文关键词	Oasis agroecosystems Mulched drip irrigation Land conversion Soil enzymes Soil nutrients
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001012392700001
WOS关键词	LAND-USE CONVERSION ; ORGANIC-MATTER ; CARBON STOCKS ; MICROBIAL COMMUNITY ; NATIVE FORESTS ; QUALITY ; INDICATORS ; DEGRADATION ; NITROGEN ; SALINITY
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395384
推荐引用方式 GB/T 7714	Tan, Mingdong,Zong, Rui,Lin, Haixia,et al. Responses of soil nutrient and enzyme activities to long-term mulched drip irrigation (MDI) after the conversion of wasteland to cropland[J],2023,190.
APA	Tan, Mingdong.,Zong, Rui.,Lin, Haixia.,Dhital, Yam Prasad.,Ayantobo, Olusola O..,...&Wang, Zhenhua.(2023).Responses of soil nutrient and enzyme activities to long-term mulched drip irrigation (MDI) after the conversion of wasteland to cropland.APPLIED SOIL ECOLOGY,190.
MLA	Tan, Mingdong,et al."Responses of soil nutrient and enzyme activities to long-term mulched drip irrigation (MDI) after the conversion of wasteland to cropland".APPLIED SOIL ECOLOGY 190(2023).