干旱区生态环境知识资源中心(Arid): The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China

Arid

DOI	10.3390/land10090896
	The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China
	Sheng, Yang; Liu, Weizhong; Xu, Hailiang; Gao, Xianchao
通讯作者	Liu, WZ (corresponding author), Xinjiang Agr Univ, Arid Reg Rural Dev Resarch Ctr, Urumqi 830052, Peoples R China.
来源期刊	LAND
EISSN	2073-445X
出版年	2021
卷号	10 期号:9
英文摘要	Environmental constraints are not only important aspects that affect the cultivated land quality but also necessary factors that shall be considered when evaluating the cultivated land quality scientifically. Moreover, identifying the quality condition of cultivated land accurately is the premise for guaranteeing food security. Based on the case study of diluvial fan terrain in Jimsar County, Xinjiang in the arid region of Northwest China, this study utilizes a geographic information system spatial analysis and a multifactor comprehensive evaluation method and constructs a comprehensive evaluation index system for cultivated land quality on account of three dimensions, namely soil properties, farming conditions, and natural environmental conditions. To reduce the Modifiable Areal Unit Problem (MAUP) effect and improve the accuracy of the quality evaluation results of cultivated land, this study compares the spatial interpolation methods of Inverse Distance Weighted Matrix (IDW), Ordinary Kriging (OK), and Spline Functions (Spline) based on different cultivated land evaluation units. Through the assessment on the comparison results, we finally adopted large-scale cultivated land as the quality evaluation unit of cultivated land and Ordinary Kriging (OK) as the spatial interpolation method. The results indicated that the average grade of the quality index of cultivated land in the diluvial fan terrain of Jimsar County is 6.66 at the middle or lower level; the quality of cultivated land and natural environment conditions reduce with the rise of elevation of the diluvial fan terrain, indicating a vertical zonality differentiation rule; the farming conditions keep sliding from the middle part of diluvial fan terrain to the edge of the diluvial fan terrain and the piedmont slope. The major factors affecting the quality of the cultivated land include the soil capacity, soil pH, soil organic matter, the quantity of straw returning to the field, source of irrigation water, water delivery method, part of the diluvial fan, groundwater level depth, and geomorphic type. Therefore, the measures to improve the quality of the cultivated land are put forward, mainly including improving the soil, carrying out land consolidation projects, and developing highly efficient water-saving irrigation agriculture. This study provides favorable references and directions for the sustainable utilization and quality improvement of cultivated land resources in arid regions.
英文关键词	cultivated land quality evaluation cultivated land quality spatial distribution MAUP influence factor diluvial fan of arid region
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000700377800001
WOS关键词	ANALYTIC HIERARCHY PROCESS ; HEAVY-METALS ; ARABLE LAND ; SOILS ; SECURITY ; MODEL ; AREA
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364097
作者单位	[Sheng, Yang; Liu, Weizhong] Xinjiang Agr Univ, Arid Reg Rural Dev Resarch Ctr, Urumqi 830052, Peoples R China; [Sheng, Yang; Xu, Hailiang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; [Gao, Xianchao] Jilin Univ, Coll Earth Sci, Changchun 130012, Peoples R China
推荐引用方式 GB/T 7714	Sheng, Yang,Liu, Weizhong,Xu, Hailiang,et al. The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China[J]. 中国科学院新疆生态与地理研究所,2021,10(9).
APA	Sheng, Yang,Liu, Weizhong,Xu, Hailiang,&Gao, Xianchao.(2021).The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China.LAND,10(9).
MLA	Sheng, Yang,et al."The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China".LAND 10.9(2021).