新疆农业科学2011，Vol.48Issue(12)：2281-2286,6.DOI:65-1097/S.20120109.2057.021
基于GIS的县级耕地地力评价及土壤障碍因素分析
Evaluation of Soil Fertilities of Farmland at County Level Based on GIS and Analysis of Obstacle Factors
摘要
Abstract
[Objective] The fertility of farmland and obstacle factors were researched in this project in order to provide countermeasures for regionalization by taking Shawan County as an example. [ Method ] This study, based on the geographic information system ( GIS) , the statistics and result of the second soil census and the Shawan County soil map, overlaid the current landuse map with the basic farmland protection map and the soil map, forming 4002 patches,which are used as the basic management and evaluation cells. And also, this research built up the evaluation system and model of farmland fertility by selecting twelve affected factors from three aspects of soil nutrient content, profile situation and land management. The grade of arable land productivity was formed according to the theory of Fuzzy Mathematics, Telphi Principle and Analytic Hierarchy Program. Comprehensive indexes were applied in this study to evaluate the farmland fertility of Shawan County and analyze its space distribution. [Result]The results suggest that among the 78 060 hm2 farmlands, the fertility of grade from the first to the fifth respectively account for 10. 55% , 37. 80% ,37. 57% , 9. 10% , and 1.93%. Obstacle factors in soil are; (1) Nutrient deficiency of soils; (2)Different obstructed horizons;(3) Soil salinization. [ Conclusion] The results were well in line with the local situation, thus three regions ofregionalization will adopt different technical improving measures in Shawan.关键词
GIS/耕地地力评价/障碍因素/层次分析/模糊评价Key words
GIS/ farmland fertility evaluation/obstacle factors/analytic hierarchy program/ fuzzy evaluation分类
管理科学引用本文复制引用
冯耀祖,耿庆龙,陈署晃,郭继超,董巨河,贾登泉,高永健..基于GIS的县级耕地地力评价及土壤障碍因素分析[J].新疆农业科学,2011,48(12):2281-2286,6.基金项目
国家科技部国际科技合作项目(2010FA92720-11) （2010FA92720-11）
农业部"测土配方施肥试点补贴资金项目" （）
