本文研究了GIS技术在山东省广饶县耕地生态环境评价中的应用,通过确定各指标的权重和隶属函数,最终确定了耕地生态环境等级。结果表明,广饶县耕地生态环境状况总体良好,一、二等地占总面积的39.94%;三、四等地占总面积45.73%;五、六等级仅占14.34%,耕地生态环境等级由东北沿海向西南过渡。该研究较好地探索了GIS技术在县域耕地生态环境评价中的应用,摸清了县域耕地集约利用对其生态环境的影响,对县域耕地资源的持续利用和环境保护有积极意义。
Taking Guangrao County of Shandong province as an example, this article studied the GIS technology application in ecological environment evaluation in Guangrao county of Shandong province. This research classi- fied the ecological environment of the cultivated land by determining the factors' weights and membership functions. The results showed that the ecological environment of cultivated land in Guangrao County was generally good, 39. 94% of the total area was the first and the second grades, 45. 73% was the third and the fourth grades, and only 14. 34% was the fifth and the sixth grades. Ecological environment grades have a gradually transition form northeastern coast to southwestern land. This study explored the GIS technical methods in the ecological environment evaluation in county cultivated land and delineated the influence of the intensive land use to the ecological environment, so this study has a positive meaning to the sustainable use of county cultivated land resources and environmental protection in County Cultivated lando.