生态与农村环境学报2016，Vol.32Issue(3)：424-431,8.DOI:10.11934/j.issn.1673-4831.2016.03.014
中亚热带红壤丘陵区农业流域景观格局对水文过程的影响
Effects of Landscape Pattern on Hydrological Processes in the Central Subtropical Hilly Agricultural Catchments
摘要
Abstract
Landscape is an important factor affecting catchment hydrological processes and water cycling. The study on how landscape affects hydrological processes in a catchment may provide some scientific basis for reasonable water resource management and utilization. A case study was conducted of a catchment, Jinjing catchment of Changsha County, Hunan Province, making use of the hydrological and meteorological data measured during 2010-2014 and the remote-sensing lan-duse maps of that period to analyze effects of the landscape pattern of the catchment on hydrological processes ( i. e. river runoff and base flow), with the Pearson correlation analysis and multiple linear regression models. Results show as follows:( 1) volume of the river runoff in the catchment fluctuated drastically and seasonally, while that of the base flow did not vary so much with the season;( 2) landscape pattern significantly influenced hydrological processes in the catch-ment, especially during the dry and normal period, when volume of the base flow was significantly and positively related to Shannon′s diversity index, patch density, and edge density, but negatively to contag index, largest patch index, aggrega-tion index, and cohesion index( P<0. 05);and ( 3) river runoff coefficient and volume of the base flow in a year or during the dry and normal periods can be predicted from proportions of land use types and landscape patterns in area. Therefore, rational landscape planning of the catchment based on the prediction will help scientific management and reasonable utili-zation of the water resources in central subtropical hilly agricultural catchments.关键词
土地利用方式/河川径流/基流/水分循环Key words
land use/stream flow/base flow/water cycling分类
资源环境引用本文复制引用
刘济,李玮,王毅,李巧云,李勇,吴金水..中亚热带红壤丘陵区农业流域景观格局对水文过程的影响[J].生态与农村环境学报,2016,32(3):424-431,8.基金项目
国家重点基础研究发展计划(2012CB417105) （2012CB417105）
国家科技支撑计划(2014BAD14B01) （2014BAD14B01）
国家自然科学基金青年基金(41201220) （41201220）
