干旱区生态环境知识资源中心(Arid): Influence of Irrigation on Vertical Migration of Soil Organic Carbon in Arid Area of Inland River

Arid

DOI	10.3390/land12081532
	Influence of Irrigation on Vertical Migration of Soil Organic Carbon in Arid Area of Inland River
	Zhang, Wenhao; Zhu, Guofeng; Wan, Qiaozhuo; Lu, Siyu; Zhao, Ling; Qiu, Dongdong; Lin, Xinrui
通讯作者	Zhu, GF
来源期刊	LAND
EISSN	2073-445X
出版年	2023
卷号	12 期号:8
英文摘要	Soil organic carbon is very important to increase crop yield. Understanding the composition changes and migration characteristics of SOC under different irrigation conditions in arid oasis areas is of great significance for the sustainable development of agro-ecosystem and the estimation of carbon balance of farmland ecosystem in arid areas. In this paper, classical statistics and geostatistics were used to study the leaching characteristics and migration laws of soil organic carbon under different irrigation conditions in Minqin Oasis, and the leaching amount and loss process and mechanism of SOC under different irrigation conditions were quantified. The research results showed that: (1) Irrigation increased the average 0-100 cm SOC content. After irrigation, SOC content decreased first and then increased with the increase in soil depth, with the maximum value of 8.56 g/kg and the minimum value of 1.82 g/kg. Compared with that before irrigation, SOC content in 0-30 cm surface layer was in leaching state, SOC content in 30-70 cm surface layer was accumulated, and SOC content in 70-100 cm surface layer had no obvious change. (2) Water was an important factor affecting soil carbon. The greater the irrigation amount, the higher the carbon leaching rate and the greater the migration amount. The SOC content in 0-30 cm soil layer was most significantly affected by irrigation, and the migration amount of SOC gradually decreased with the increase in soil depth. The maximum leaching rate of SOC was 36.8%, the minimum leaching rate was 13.5%, and its average leaching rate was 23.4%. (3) Due to the influence of soil infiltration rate under water, SOC content in different irrigation periods showed that the greatest SOC occurred in the 0-70 cm layer, and SOC content in soil was basically the same as that in non-irrigated areas on the fifth day after irrigation. (4) Precipitation, plastic film mulching, soil physical and chemical properties and other environmental factors were important factors affecting the migration and change in SOC content.
英文关键词	soil organic carbon irrigation amount migration amount arid area
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:001056611300001
WOS关键词	CLIMATE-CHANGE ; MANAGEMENT ; TILLAGE ; STOCKS ; FRACTIONS ; INCREASES ; TRANSPORT ; DYNAMICS ; TEXTURE
WOS类目	Environmental Studies
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/2XILL650/397677
推荐引用方式 GB/T 7714	Zhang, Wenhao,Zhu, Guofeng,Wan, Qiaozhuo,et al. Influence of Irrigation on Vertical Migration of Soil Organic Carbon in Arid Area of Inland River[J],2023,12(8).
APA	Zhang, Wenhao.,Zhu, Guofeng.,Wan, Qiaozhuo.,Lu, Siyu.,Zhao, Ling.,...&Lin, Xinrui.(2023).Influence of Irrigation on Vertical Migration of Soil Organic Carbon in Arid Area of Inland River.LAND,12(8).
MLA	Zhang, Wenhao,et al."Influence of Irrigation on Vertical Migration of Soil Organic Carbon in Arid Area of Inland River".LAND 12.8(2023).