2000-2010年贵州省生态系统水源涵养功能变化特征  

Characteristics of variation of water conservation in Guizhou Province from 2000 to 2010

作　　者：吴松 安裕伦[2] 李远艳[2] 郭海祥 安宏锋 

机构地区：[1]江苏省南通市环境监测中心站,江苏南通226006 [2]贵州师范大学地理与环境科学学院,贵阳550001 [3]贵州省基础地理信息中心,贵阳550004 [4]贵州省环境监测中心站,贵阳550002

出　　处：《环保科技》2016年第2期1-6,共6页Environmental Protection and Technology

基　　金：国家自然科学基金(41161002);贵州省科技攻关项目:黔科合GY字(2006)3022;贵州省省长基金:黔省专合字(2011)46号;贵州省环保厅项目:全国生态环境十年变化(2000-2010)遥感调查与评估贵州专题

摘　　要：本文采用降水贮存量模型,结合转移矩阵,对生态系统的水源涵养功能状况及其空间特征进行了评估,得出以下结论:2000-2010年间贵州省水源涵养总量下降了4.3×107m3,其经济价值下降了0.29×108元;森林生态系统是水源涵养功能最大贡献者;水源涵养量的最大值出现在梵净山等生态质量较高的地区;水源涵养功能向高等级转化,呈现出较大的由劣转好的趋势,生态环境质量得到一定程度提高。Guizhou province is an important ecological security barrier for the upstream of the Yangtze River and Pearl River. But as a result of the widely distributed carbonate rock,the storage ability of the surface water is limited. The study on the water conservation,can provide scientific basis for accurately understanding the utilization of regional water resources,and promote the sustainable development of the ＂ water- ecology- society＂. In this paper,the ecosystem function of water conservation and its spatial characteristics were evaluated by rainfall storage and transfer matrix. The results showed that from 2000 to 2010,the total amount of water conservation presented a decreasing trend and decreased by 4. 3 × 10^7m^3,and the economic value had fallen by 0. 29 × 10^8 Yuan,in which the forest ecosystem was the largest contributor. The maximum value of water conservation mainly occurred in Mount Fanjing and others with high ecological quality. The ecosystem function of water conservation presented an obviously upgrading trend and has transformed into the higher grade. The quality of ecological environment in Guizhou has been improved to a certain extent.

关 键 词：水源涵养 生态系统服务 喀斯特 

分 类 号：X171.1[环境科学与工程—环境科学]