基于GIS的农安县耕地质量渐变规律研究  

A Study on the Gradient Law of Soil Quality of Cultivated Field in Nong'an County Supported by GIS

作　　者：辛士颖 李志洪[1] 于磊[1] 赵传拓 矫丽娜[1] 殷程程[1] 朱喜君 张大军 游国祥 谷伟 

机构地区：[1]吉林农业大学资源与环境学院,长春130118 [2]吉林省土地整理中心,长春130042

出　　处：《中国农学通报》2014年第35期149-153,共5页Chinese Agricultural Science Bulletin

基　　金：国土资源部公益性行业科研专项经费项目(201011006-2)

摘　　要：以吉林省农安县为例,以GIS为依据,在第二次土地利用现状调查数据基础上,调查了耕地粮食产量和投入的数据,更新障碍层距地表深度、剖面构型、表层土壤质地、土壤有机质含量、土壤p H和盐渍化程度等属性,完成了2010—2012年各等别及产能的更新。研究农安县2010—2012年的自然等、利用等、经济等和产能的变化,各等别与土壤的相关关系,总结农安县近3年各等别发生变化的原因,为合理改良农安县耕地质量提供依据。结果表明,2010—2012年自然等别变化不大,主要原因是自然质量影响因子变化不大;利用等逐年降低而经济等别变化波动较大,这是因为作物的产量变化影响着土地利用系数和经济系数,而近几年产量主要受自然灾害的影响较大。相关分析表明,农用地的各等别与有机质含量,p H呈正相关。Taking Nong＇ an County of Jilin Province as the study area, based on GIS, on the basis of the second survey data of land use status, we investigated the data of the production and input of arable land, renewed the attributes such as the barrier layer depth from the surface, profile shapes, surface soil texture, soil organic matter content, soil pH and degree of salinization, u year 2010-2012, researched the change of nature, pdated the farmland grade and production capacity of the utilization, economic and production capacity of the year 2010-2012, the correlation between each grade change and soil, analyzed the reason of each grade change of nearly three years, in order to supply scientific basis for reasonably improving land quality of Nong ＇ an County. Results shown that, there was a little change in nature of the year 2010-2012, the most important reason was the impacting factor of natural quality changed a little; utilization reduced yearly and nature had a big change because changes of crop yields affected land use coefficient and economic coefficient, whereas production was mainly affected by natural disasters. Correlation analysis shown that, farmland grade had a positive relationship with organic matter and pH.

关 键 词：耕地质量等级 监测 更新 

分 类 号：F301[经济管理—产业经济]