变化环境下南方湿热区韩江流域景观格局演变与生态水文耦合研究

项目名称： 变化环境下南方湿热区韩江流域景观格局演变与生态水文耦合研究

项目编号： No.41471147

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 天文学、地球科学

项目作者： 张正栋

作者单位： 华南师范大学

项目金额： 85万元

中文摘要： 流域生态水文过程是流域最重要的生态过程，与流域景观格局及其演变联系非常紧密。探讨流域景观格局与生态水文相互作用机制是流域生态环境研究的基础。以我国南方湿热地区韩江流域为研究区，通过样地调查、实验观测、遥感反演、GIS 空间分析、地统计分析和模型模拟等手段和方法，依据 1978～2016 年间的 Landsat MSS、TM/ETM+，SPOT 和 Quikbird遥感数据和相关水文观测统计数据，研究：（1）流域景观格局的时空异质性特征及演变；（2）流域生态水文过程时空演变与模拟；（3）流域景观格局与生态水文耦合分析；（4）流域景观格局与生态水文的相互关系和耦合方法；（5）景观格局与生态水文过耦合模拟，揭示格局与过程耦合规律；（6）流域生态景观优化配置模式。项目的研究成果有助于揭示景观格局对南方湿热地区流域生态水文过程调控的景观生态学意义，可为南方湿热地区流域生态建设提供科学依据。

中文关键词： 景观格局；生态过程；水文效应；景观模型；景观演化

英文摘要： Abstract: Eco-hydrological process is a key process in the southern humid area river basin, and has a very close relationship with landscape pattern. It is important to investigate the interaction mechanisms between landscape patterns and eco-hydrological processes for further deepening research on watershed ecological environmental. In this study, Being based on the Landsat MSS,TM/ETM, SPOT，Quikbird remote sensing data in different time interval and hydrological observation statistics Data, the Hanjiang watershed in southern humid area is chosen as research objective by field survey, remote sensing inversion , spatial analysis of GIS, geo-statistical analysis and model simulation. Major research contents including: (1) reveal the spatial and temporal heterogeneity and evolution trend of landscape pattern; (2) analyze the spatial and temporal characteristics of runoff process; (3) research the quantitative relations between landscape pattern and river water quality; (4)The coupling method and mechanisms between landscape pattern and Eco-hydrological process ; (5)In order to recognize the coupling rules between pattern and ecological process, the effects of landscape patterns on eco-hydrological processes are simulated; (6)some optimal distribution modes of ecological landscape are developed. The results obtained help to understand the hydrological and landscape ecological significance of influence relation between landscape patterns and eco-hydrological processes, it could provide scientific basis to ecological development in the southern humid area river basin.

英文关键词： landscape pattern;ecological process;hydrologic effect;landscape model;landscape evolution