基于GIS的松嫩平原农业干旱敏感性分析

The study on the susceptibility of agricultural drought hazard in Songnen plain based on GIS

以农安县为例,选择了湿润指数、平均风速、土壤质地、地形地貌和水文条件以及人类活动影响程度作为松嫩平原农业干旱的敏感性评价因子,结合层次分析和专家打分模型,采用地理信息系统技术进行农业干旱敏感性分析,旨在分析生态环境对农业干旱的影响,为农业减灾、避灾提供依据。图2,表1,参10。

Taking Nong'an as an example,the susceptibility for grading and synthesized classifying the agricultural drought hazard is analyzed according to the indices,such as relative moisture,average wind speed,the quality of soil,terrain and physiognomy,groundwater and human being's impact.In the study,GIS overlaying applies the AHP and expert decision-making models.The analysis aims at the impact of the eco-environment on the agricultural drought hazard,and being as a reference for decreasing and avoiding loss of the agricultural drought (hazard.)