干旱区生态环境知识资源中心(Arid): Long-term conventional cultivation after desert reclamation is not conducive to the improvement of soil carbon pool and nutrient stocks, a case study from northwest China

Arid

DOI	10.1016/j.geoderma.2024.116893
	Long-term conventional cultivation after desert reclamation is not conducive to the improvement of soil carbon pool and nutrient stocks, a case study from northwest China
	Ma, Dengke; He, Zhibin; Ju, Wenliang; Zhao, Wenzhi; Zhao, Peng; Wang, Wen; Lin, Pengfei
通讯作者	He, ZB
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2024
卷号	445
英文摘要	Reclamation in desert-oasis areas is effective for improving land productivity and ensuring food supply. However, the understanding of the sustainable productivity of soils under long-term conventional cultivation after desert reclamation is still poor. This study was conducted to determine soil structural properties, organic carbon stocks (SOCS) and nutrient stocks under four desert reclamation ages (0, 30, 60, and 100) in the arid region of northwest China, and evaluate the influence of long-term conventional cultivation on desert soil quality. The results indicated that soil structural stability index (SI) in topsoil improved after desert reclamation, but showed a slight downward trend after 60 years of cultivation, and farmland soil in the study area was still at serious risk of degradation (SI <= 5 %) overall. SOCS were enlarged by 4.2 times after desert reclamation, and nitrogen stocks (NS) and phosphorus stocks (PS) were increased by 1.2-6.5 times. However, the regression analysis showed that SOCS and NS in 0-40 cm soil layer and PS in topsoil stopped increasing after about 60-year conventional cultivation. Soil stoichiometry, pH and texture were the key factors affecting SOCS, NS and PS in oasis farmlands. In summary, our study emphasized that soil quality in arid areas was greatly improved after desert reclamation, however, long-term conventional agriculture management measures limited this improvement. Therefore, longterm conventional management of agricultural land in arid areas should introduce appropriate conservation measures to achieve sustainable soil productivity.
英文关键词	Arid region Carbon storage Conventional tillage Desert Reclamation Structural stability index
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001233575400001
WOS关键词	ORGANIC-CARBON ; PHYSICAL QUALITY ; OASIS ECOTONE ; NITROGEN ; MANAGEMENT ; EXPANSION ; MATTER ; ACCUMULATION ; MECHANISMS ; CONVERSION
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/2XILL650/403924
推荐引用方式 GB/T 7714	Ma, Dengke,He, Zhibin,Ju, Wenliang,et al. Long-term conventional cultivation after desert reclamation is not conducive to the improvement of soil carbon pool and nutrient stocks, a case study from northwest China[J],2024,445.
APA	Ma, Dengke.,He, Zhibin.,Ju, Wenliang.,Zhao, Wenzhi.,Zhao, Peng.,...&Lin, Pengfei.(2024).Long-term conventional cultivation after desert reclamation is not conducive to the improvement of soil carbon pool and nutrient stocks, a case study from northwest China.GEODERMA,445.
MLA	Ma, Dengke,et al."Long-term conventional cultivation after desert reclamation is not conducive to the improvement of soil carbon pool and nutrient stocks, a case study from northwest China".GEODERMA 445(2024).