摘要
以河南省辉县市为例,在采用主成分分析法确定耕地质量等别主导因素的基础上,划分耕地质量渐变类型区,并分析其空间分布特征及结果应用方向。结果表明,辉县市耕地质量等别的主导因素为灌溉保证率、地形坡度、土层有效厚度和土壤有机质含量,耕地质量渐变类型区空间分布呈显著的地带性规律,今后质量监测单元及样点的布设和耕地质量提升工程的部署均可依据耕地质量渐变类型区划分结果进行安排。
Taking Huixian City of Henan Province as an example, this paper divided the gradient type areas of cultivated land quality based on the determination of the dominant factors of cultivated land quality by principal component analysis, and analyzed the spatial distribution characteristics and the application direction of the results. The results showed that the dominant factors of cultivated land quality in Huixian were irrigation guarantee rate, topographic gradient, effective thickness of soil layer and content of soil organic matter. The spatial distribution of cultivated land quality gradient type area showed obvious zonal regularity. In the future, the layout of quality monitoring units and sample points and the deployment of cultivated land quality improvement projects could be arranged according to the results of gradient type area division of cultivated land quality.
作者
李鸣慧
孙志英
芦艳艳
LI Ming-hui;SUN Zhi-ying;LU Yan-yan(Henan Provincial Land Consolidation Center,Zhengzhou,Henan 450016;Henan Provincial Land Resources Survey and Planning Institute,Zhengzhou,Henan 450016)
出处
《安徽农业科学》
CAS
2019年第14期61-62,70,共3页
Journal of Anhui Agricultural Sciences
关键词
主导因素
耕地质量
渐变类型
辉县市
Dominant factor
Quality of cultivated land
Type of gradual change
Huixian City
