景观格局对河流水质的影响规律及模型研究-以香溪河流域为例

项目名称： 景观格局对河流水质的影响规律及模型研究-以香溪河流域为例

项目编号： No.41301201

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 天文学、地球科学

项目作者： 任斐鹏

作者单位： 长江水利委员会长江科学院

项目金额： 26万元

中文摘要： 河流水质对岸带及下游区域人居环境极为重要，景观格局对河流水质往往产生巨大影响，但定量解析该影响关系却是当前科学研究的突出难点。弄清究竟哪些景观格局特征会对入河污染物质的产生、积聚与运移产生关键影响，定量解析这些关键影响的性质与特点，对指导调控入河污染物质和改善河流水质具有重要意义。本研究拟选取三峡库区香溪河流域，运用野外样带调查、遥感监测和GIS空间分析等技术手段，采用统计分析与多元线性、广义线性和广义可加模型模拟的方法，通过筛选易导致河流水质变化的景观格局指标，研究景观格局与河流水质之间的线性与非线性响应关系，建立河流水质敏感景观格局指标体系，理清景观格局与河流水质间的定量关系，辨识景观格局对河流水质的影响途径与影响模式，揭示流域景观格局对河流水质的基本影响规律。研究可为河流水质和陆地景观要素相互作用过程与机理揭示提供理论基础，为流域土地管理、景观规划和非点源污染调控提供科学依据。

中文关键词： 景观格局；土地利用与土地覆被变化；样带调查；模型；

英文摘要： It's critical important of the river water quality to the belt and the downstream area for providing high quality production and living environment. Although the studies have shown that landscape pattern characteristics greatly impact the river water quality, but the influence rule of them is not clear. So, the study of quantitative relationships between Landscape patterns and river water quality is a hotspot and difficulty of current research. It has great significance of screening key landscape pattern characteristics affect the river water quality and it also make sense to research the quantitative relations between landscape pattern and river water quality. Because the relevant results can not only be important to reveal the process of landscape patterns effect the generation and migration of river pollutants, but also can be used to instruct pollution control and so on. Based on this, choosing Xiangxi river basin in Three Gorges Reservoir Area as the study area, explore the rules of landscape patterns influence on the river water quality by using a multi-scale quantitative analysis way. In this study, methods used for data collection include: 1) Land use data will be obtained by multiple applying field investigation, remote sensing image interpretation and GIS analysis technology; 2) Multi-scale Landscape p

英文关键词： Landscape pattern；Land use and land cover change；Belt transect investigation；model；