| 摘要: |
| 【目的】耕地适宜性评价是研究耕地合理利用的核心内容之一，是对影响耕地质量
的各种条件的综合评估，是土地利用规划的基础，为合理保护耕地资源提供重要依据。
【方法】文章在研究区内基于土壤养分、立地条件、理化性状、土壤管理四个方面，选取12 个
评价因子构建耕地适宜性指标评价体系，以16m×16m 栅格为评价单元，选用层次分析法确
定评价指标权重，运用遥感和地理信息系统技术（GIS）建立模型进行综合评价，将研究区耕
地适宜性划分为10 个等级。【结果】研究区耕地整体适宜性良好，其中一到六级耕地占全区
耕地总面积的81.07%，同时也有相当面积的耕地评价等级较低，处于勉强宜耕或不适宜耕作
的状况。【结论】通过模糊数学和专家打分获得的耕地评价值，在AHP 模型中将各指标分4
类赋权重，最后得到相互关联的耕地指标体系，且利用GIS 技术处理栅格数据对表现耕地适
宜性具有良好的作用，研究成果对研究区耕地资源合理保护及促进耕地可持续发展有重要的
意义。 |
| 关键词: 适宜性评价 层次分析法 耕地 GIS |
| DOI：10.12105/j.issn.1672-0423.20180205 |
| 分类号: |
| 基金项目:湖南省耕地后备资源调查评价项目 |
|
| Suitability evaluation of cultivated land based on GIS technology and analytic hierarchy process |
|
Qin Xiaoli
|
|
Hunan Research Academy of Geological Sciences，Changsha 410007，China
|
| Abstract: |
| ［Purposes］The evaluation of cultivated land suitability is one of the core contents
in the study of rational utilization of cultivated land. Certainly，it is also a comprehensive
evaluation of various conditions affecting the quality of cultivated land.［ Method］In the paper，
twelve evaluation factors based on the four aspects of cultivated land including soil nutrient，
site condition，physical and chemical properties and soil management which were selected as
the research objects to construct the evaluation system of cultivated land suitability index. AHP
method was used to determine the weight of evaluation index by taking 16m×16m grid as the
evaluation unit. On this basis，using remote sensing and geographic information system（ GIS）
technology to establish a model for comprehensive evaluation，and the comprehensive evaluation
of the cultivated land，the research area was divided into ten ranks.［ Result］The results show
that the cultivated land suitability of research area was generally good，and most of the cultivated
land had good adaptability，among which one to six places accounted for 81.07% of the total area
of cultivated land in the whole area. Meanwhile there was also a considerable evaluation level of
cultivated land Farming or unfit for farming situation.［ Conclusion］In summary，in the AHP
model，the indexes were divided into four categories，and finally the cultivated land index
system was correlated，and using GIS technology to deal with the raster data had a good effect on
the evaluation of cultivated land suitability. The research results are of great significance to the
reasonable protection of cultivated land and the sustainable development of cultivated land. |
| Key words: suitability evaluation analytic hierarchy process arable land GIS |
