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当前位置: 首页 > 文章 > 基于GIS的滇中高原耕地适宜性分析——以易门县为例 江西农业学报 2017,29 (11) 38-43+48
Position: Home > Articles > Suitability Analysis of Cultivated Land in Plateau of Central Yunnan Based on GIS: A Case Study of Yimen County Acta Agriculturae Jiangxi 2017,29 (11) 38-43+48

基于GIS的滇中高原耕地适宜性分析——以易门县为例

作  者：
何万华;周文佐;田罗;刘东红
单  位：
西南大学地理科学学院
关键词：
适宜性分析;GIS;易门县;滇中高原
摘  要：
开展耕地适宜评价是编制农业发展规划,优化耕地资源配置的基础性工作,以易门县耕地资源为研究对象,选取了立地因素、土壤条件、管理条件3个主导因素9个评价因子构成了该区域的评价体系。依据土地适宜性分析的数学评价模型,利用加权指数和法、限制因素法、层次分析法,并结合GIS空间分析、统计软件,得出易门县100 m×100 m栅格精度的耕地适宜性等级。分析统计了易门县各乡镇适宜耕地数量、人均适宜耕地面积以及空间分布特征,结果得出:在数量上,该县耕地23981 hm~2中,最适宜类6956 hm~2,中等适宜类14424 hm~2,临界适宜类2162 hm~2,不适宜类439 hm~2;人均耕地面积为0.14 hm~2,中等适宜类以上占到89%。在空间上,易门县耕地适宜性整体呈现东高西低的特点,最适宜类和中等适宜类集中分布中西部平坝地区;临界适宜类和不适宜类主要分布在南部、西北部高山区域。最后,以耕地适宜等级大小为农作物布局依据,为作物空间布局指明了宜烟草、宜林、应改良区域。
译  名：
Suitability Analysis of Cultivated Land in Plateau of Central Yunnan Based on GIS: A Case Study of Yimen County
作  者：
HE Wan-hua;ZHOU Wen-zuo;TIAN Luo;LIU Dong-hong;School of Geographical Science,Southwestern University;
单  位：
School of Geographical Science,Southwestern University
关键词：
Suitability analysis;;GIS;;Yimen county;;Central Yunnan plateau
摘  要：
The evaluation of cultivated land suitability is the basic work of compiling agricultural development plan and optimizing the allocation of cultivated land resources. Using the resources of cultivated land in Yimen county as the research object,we selected 9 factors from the aspects of land site,soil condition and management condition to construct an evaluation system for the cultivated land suitability in this county. Based on the land suitability evaluation mathematical model,by using the weighted exponential sum method,restriction factor method,AHP,GIS spatial analysis,and statistical software,the author calculated and obtained the suitability level of cultivated land grids( 100 m× 100 m) in Yimen county,and statistically analyzed the suitable cultivated land quantity and spatial distribution characteristics,and per-capita suitable cultivated land area of each township in this county. The results showed that: among 23981 hm~2 cultivated land in Yimen county,there were 6956 hm~2 most suitable cultivated land,14424 hm~2 moderately suitable cultivated land,2162 hm~2 critically suitable cultivated land,and 439 hm~2 unsuitable cultivated land; the per-capita cultivated land area was 0.14 hm~2,and the most or moderately suitable cultivated land accounted for89% of total cultivated land. The spatial distribution of cultivated land suitability in Yimen county generally revealed the characteristics of being high in eastern part and being low in western part; the most suitable cultivated land and moderately suitable cultivated land were concentratedly distributed in Pingba area of middle and western part; the critically suitable cultivated land and unsuitable cultivated land were mainly distributed in mountainous area of southern and northwestern part. Finally,according to the level of cultivated land suitability in Yimen county,the author pointed out the regions which were suitable for tobacco and forestry,or should be improved.

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