滇池流域土地利用对水体污染影响研究  

Analysis on Land Use Effects toward Watershed Pollution in Dianchi Lake

作　　者：孙雄燕 

机构地区：[1]云南师范大学外国语学院,云南昆明650092

出　　处：《生态经济》2017年第5期171-174,共4页Ecological Economy

摘　　要：以滇池流域为研究对象,根据1976年、1987年、1999年、2007年、2015年5个时间节点下的TM遥感影像图为数据基础,采用ERDAS进行相应监督分类,通过Eviews实证研究流域范围内土地利用变化对水体污染指标的影响。结果表明:(1)滇池流域的土地利用在近40年来发生了明显的改变,其中建设用地显著增加,耕地和其他地类显著减少,水域和林地变化不明显。(2)滇池流域的水体显著受到近40年来土地利用变化情况的影响而呈现日趋恶化的趋势,如无进一步的土地利用改进措施,随着建设用地的增加,可能会进一步恶化。This takes the Dianchi River Basin as the research object. According to the 1976, 1987, 1999, 2007 and 2015 five point TM remote sensing image data as the basis, using ERDAS supervised classification, the paper empirically researches the effects of land use change within the basin of water pollution index. The result shows that the land use in Dianchi the basin has changed significantly in the past 40 years, the construction land increased significantly, arable land and other land types decreased, water and forest did not change significantly. The water body of the Dianchi river basin is significantly affected by the land use type and the use of the change of the situation. If no further measures are taken improve, with the increase of construction land, the water body may deteriorate further.

关 键 词：滇池流域 土地利用 水体污染 

分 类 号：X52[环境科学与工程—环境工程]