【摘要】 利用黄河三角洲地区中巴资源卫星多光谱影像数据,通过遥感技术方法提取反映生态环境状况的土地退化指数、植被指数、水体密度指数及人类活动指数,对垦利县生态环境进行了定量评价.结果表明,垦利县生态环境状况整体偏差,优、良等级的土地面积仅占全县的24.64%,主要为分布在东北部林地及西南部和中部的部分农用地;中等地面积占44.08%,分布在东部沿海滩涂,西部、中部、东北部的农用地有少量分布;差、劣等级的土地面积占总面积的30.12%,主要为分布在中部和北部的盐荒地.更多还原

【Abstract】 Ecological environment of Kenli County was quantitatively evaluated by using CBERS multi-spectral image and applying quantitative remote sensing techniques.Indices of land degradation,vegetation,water density and human activity,which reflect conditions of ecological environment were extracted.Overall ecological environment of Kenli was relatively poor.Areas included in excellent and good lands only accounted for 24.64% of the whole county,which mainly distributed in the northeastern forest land and the southwestern and central agricultural land.44.08% of the whole county belonged to moderate grade,which distributed in the eastern coastal beach and sparsely in the western,central and northeastern agricultural land.The poor and inferior lands accounted for 30.12% of the whole county,which mainly distributed in the central and the northern salt wasteland.更多还原