昆明盆地土地利用对岩溶水质的影响  

Effect of Kunming Basin Land Use on Karst Water Quality

作　　者：彭淑惠 王宇 张贵 李继红 李玉辉[2] 

机构地区：[1]云南省地质环境监测院,云南昆明650216 [2]云南师范大学,云南昆明650092

出　　处：《昆明理工大学学报（自然科学版）》2011年第6期1-7,14,共8页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：973计划前期研究课题(2009CB426312)

摘　　要：随着社会、经济的不断发展,土地开发利用范围扩大、强度增加,土地利用、土地覆盖变化对岩溶地下水水质、水量、水循环等地下水环境产生了一定影响.本文选择昆明盆地的山区—沉积平坝区—滇池湖岸,研究土地利用结构变化对岩溶水水质的影响.研究过程采用收集资料、地面调查、地下水动态监测、样品采集及分析鉴定、综合分析研究等方法开展工作.昆明盆地属于汇水型盆地,盆地土地利用结构依地质环境的变化而变化.盆地周围山区以林地、坡地、荒草地、裸岩为主,沉积平坝区以平田、建设用地、园地为主.土地利用变化的总体趋势是农业用地不断减少,建设用地不断增加,伴随的地质环境问题是地下水污染防护性能降低,废水、废淋滤下渗造成带状的地下水污染.从山区到沉积平坝区边缘再到中部,岩溶水污染呈现出两头轻、中间相对较严重的特点.城镇村庄、工矿用地比例越高,岩溶水污染越重.通过研究,对昆明盆地合理规划土地利用,保护岩溶地下水,具有重要的指导意义.With the social and economic development,the increased utilization and intensity of land development,land use,land cover change have some impact on karst groundwater quality,water quantity,water cycle and other groundwater.Kunming Basin mountain-deposition Basin District-Dianchi lake shore is chosen in this paper to study this effect.The study involves data collection,ground surveys,groundwater monitoring,sample collection as well as a comprehensive analysis.Kunming basin is a catchment basin,the use of which changes according to the geological environment.The surrounded mountains are forests,slopes,grassland and bare rock.The sedimentary Basin areas are plains,construction land and gardens.The overall trend of land use change is the decrease of agricultural land,and the increase of construction land.Therefore,the geological environment protection performance of groundwater pollution is reduced.Waste water and waste leaching infiltration of groundwater pollution lead to ribbon pollution of groundwater.The middle part of the Basin is more polluted than the two ends.The more towns and villages it has,the higher proportion of land mines,the more serious karst water pollution is.This research is of great significance to the rational planning of the Kunming Basin and the protection of karst groundwater.

关 键 词：昆明盆地 土地利用 岩溶水 水质 

分 类 号：X523[环境科学与工程—环境工程]