气候变化领域集成服务门户(CCPortal): Construction of a water resource suitability index for agricultural production and matching analysis of cultivated land in Lhasa, Tibet

CCPortal

DOI	10.3389/fenvs.2023.1130269
	Construction of a water resource suitability index for agricultural production and matching analysis of cultivated land in Lhasa, Tibet
	Liu, Yumei; Wang, Zhiyong; Wang, Chuansheng; Wang, Yafei; Li, Jiuyi; Liang, Liqiao
发表日期	2023
EISSN	2296-665X
卷号	11
英文摘要	Water resources are essential for agriculture. In the spatial layout of agricultural production, quantitatively identifying the spatial differences in water resource conditions, including precipitation and irrigation water supply factors, is necessary. Here, a water resource suitability index for agricultural production (WRSIA) was constructed for agricultural development using irrigation water supply convenience (IWSC) and precipitation conditions. Considering Lhasa as the study area, water resource suitability index for agricultural production was calculated on a 100 m grid scale, and the spatial distribution relationship between water resource suitability index for agricultural production and cultivated land was analyzed using geographically weighted regression (GWR). The results showed that irrigation water supply convenience severely restricted agricultural production in Lhasa, and the high water resource suitability index for agricultural production values were mainly distributed in the valleys of the Lhasa River and its tributaries. Moreover, 47.7% of the cultivated land was distributed in 5% of the area having the highest water resource suitability. According to geographically weighted regression, the cultivated land area and water resource availability were strongly correlated (R-2 = 0.904). The distribution of the cultivated land was well explained by water resource suitability index for agricultural production, which could describe the differences in water resource suitability for agricultural production. Furthermore, the suitability of agricultural production was better evaluated when water resource suitability index for agricultural production was coupled with the land resource suitability index. Overall, water resource suitability index for agricultural production showed high applicability in Lhasa and other regions, thereby providing a scientific basis and technical support for the spatial layout of agricultural production.
关键词	water resource suitability index for agricultural production (WRSIA)irrigation water supply convenience (IWSC)cultivated land geographically weighted regression (GWR)Lhasa
英文关键词	CARRYING-CAPACITY; GIS
WOS研究方向	Environmental Sciences
WOS记录号	WOS:000958000600001
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283509
作者单位	Suzhou University of Science & Technology; Chinese Research Academy of Environmental Sciences; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS
推荐引用方式 GB/T 7714	Liu, Yumei,Wang, Zhiyong,Wang, Chuansheng,et al. Construction of a water resource suitability index for agricultural production and matching analysis of cultivated land in Lhasa, Tibet[J]. 中国科学院青藏高原研究所,2023,11.
APA	Liu, Yumei,Wang, Zhiyong,Wang, Chuansheng,Wang, Yafei,Li, Jiuyi,&Liang, Liqiao.(2023).Construction of a water resource suitability index for agricultural production and matching analysis of cultivated land in Lhasa, Tibet.FRONTIERS IN ENVIRONMENTAL SCIENCE,11.
MLA	Liu, Yumei,et al."Construction of a water resource suitability index for agricultural production and matching analysis of cultivated land in Lhasa, Tibet".FRONTIERS IN ENVIRONMENTAL SCIENCE 11(2023).