基于空间自相关的贵溪市耕地保护分区研究

发布时间：2018-04-18 19:39

本文选题：耕地质量 + 局部空间自相关　；参考：《浙江农业学报》2017年03期

【摘要】：利用多因素综合评价和空间自相关分析(LISA),对贵溪市耕地综合质量及保护分区进行研究。结果表明,贵溪市耕地综合质量分值在39.08~89.88之间,整体水平较高,高分值耕地主要分布在中部河谷平原区。村级耕地综合质量在空间分布上呈现出一定的空间集聚性特征:正相关类型(HH型和LL型)区域集聚性较强,局部空间差异小,与高分值耕地区域空间分布一致;负相关类型(HL型和LH型)区域分布零散,无明显的相对集中区域。根据耕地质量综合评价和局部空间自相关分析结果,将贵溪市耕地分为重点型、适宜型、调控型和后备型等4类,结合不同类型的特点,对不同保护区域提出有针对性的保护措施。
[Abstract]:The comprehensive quality and protection zone of cultivated land in Guixi City were studied by multifactor comprehensive evaluation and spatial autocorrelation analysis (LISAA).The results showed that the comprehensive quality score of cultivated land in Guixi was between 39.08 and 89.88, and the overall level was higher. The high score of cultivated land was mainly distributed in the plain area of the central valley.The comprehensive quality of village cultivated land shows certain spatial agglomeration characteristics: positive correlation type HH type and LL type) the regional agglomeration is stronger and the local spatial difference is small which is consistent with the spatial distribution of high score cultivated land.The distribution of the negative correlation types of HL and LH) was scattered, and there was no obvious relative concentration.According to the comprehensive evaluation of cultivated land quality and the results of local spatial autocorrelation analysis, the cultivated land in Guixi City is divided into four types: key type, suitable type, regulatory type and backup type.Specific protection measures are put forward for different protection areas.
【作者单位】：江西农业大学江西省鄱阳湖流域农业资源与生态重点实验室;
【基金】：国家自然科学基金项目(41361049) 土壤与农业可持续发展国家重点实验室(中科院南京土壤研究所)开放课题(0812201202)
【分类号】：F323.211

【相似文献】