Feasible conversion degree of dryland to paddy field in Jinxian County, Jiangxi province, China

被引：5
|
作者：
Yu, Dun [1 ]
Ramsey, R. D. [2 ]
Zhao, Xiao-Min [1 ]
Fu, Yong-Qi [3 ]
Sun, Cong-Kang [1 ]
机构：
[1] Jiangxi Agr Univ, Coll Land Resources & Environm, Nanchang, Jiangxi, Peoples R China
[2] Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA
[3] Jiangxi Agr Univ, Coll Agr, Nanchang, Jiangxi, Peoples R China
来源：
GEOCARTO INTERNATIONAL | 2019年 / 34卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Dryland; paddy field; conversion degree; water resources; suitability evaluation; LAND-USE CHANGE; ORGANIC-MATTER; CROP YIELD; SOIL; UPLAND; NUTRIENTS; IMPACT;
D O I：
10.1080/10106049.2018.1452988
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The purpose of this paper was to evaluate the feasibility of conversion from dryland to paddy field in Jinxian County under the water resources constraint and dryland suitability condition. We constructed a water resources balance model to evaluate irrigation needs and a dryland suitability model that coupled various spatial data layers. Our research showed that under the water resources constraint, the amount of conversion from dryland to paddy field was 26,971.69 ha and the feasible conversion degree of dryland to paddy field was 0.84, while under the dryland suitability condition, it was 23,262.74 ha and 0.72, respectively. According to the principle of maximum constraint, we conclude that the feasible conversion degree of dryland to paddy field was 0.72. This research can provide an objective and scientific basis for carrying out a programme of farmland conversion in counties of China as well as similar areas worldwide.
引用
收藏
页码：1042 / 1053
页数：12
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