农业机械学报2018，Vol.49Issue(2)：252-259,8.DOI:10.6041/j.issn.1000-1298.2018.02.032
土地利用方式变化对水循环过程响应机制研究
Mechanism of Response of Land Use Change to Water Cycle Process
摘要
Abstract
Based on the farmland distribution maps of Naolihe River Basin in 1990 and 2013,the influences of paddy farmland and cultivation activity on temporal and spatial variation of water cycle process were analyzed quantitatively,combining with TOPMODEL model based on LBM method.Results showed that TOPMODEL model based on LBM method could simulate well the rainfall runoff process of Naolihe River Basin,and it had a high applicability on the investigated river basin.The area of forest land,grassland and construction land was not changed much,which contributed little to the change of land structure,while unused farmland and dry farmland were partly converted to paddy farmland,contributing obviously to the change of land structure.The presence of paddy farmland resulted in the increase of total evapotranspiration,decrease of the water deficit in root zone,decrease of water deficit in the unsaturated zone,decrease of surface water,and increase of underground water from May to October.Evapotranspiration was increased by 8.9％,water deficit in the root area was decreased by 10.5％,and surface water was decreased by 43％.Paddy farmland showed different effects on hydrological variables when rice was in different growth stages.It had great influence on evapotranspiration,water deficit in root zone and water deficit in unsaturated zone when rice was in tillering stage.The influence of paddy farmland irrigation on different water cycle processes was diminished in the sequence of SBAR,RZ,E,water quantity in inlet of root zone,water quantity in outlet of root zone,and RG,among which the differences of water quantity between irrigation and non-irrigation were almost the same for the inlet and outlet of root zone.关键词
土地利用方式变化/农业结构改变/格子波尔兹曼法/TOPMODEL/挠力河流域/水循环过程Key words
land use changes/change of agricultural structure/LBM/TOPMODEL/Naolihe River Basin/water cycle process分类
建筑与水利引用本文复制引用
宫兴龙,付强,王斌,关英红,邢贞相,李衡..土地利用方式变化对水循环过程响应机制研究[J].农业机械学报,2018,49(2):252-259,8.基金项目
国家自然科学基金项目(51109036、51408107)、中国博士后科学基金项目(2013M541332)、黑龙江省水利厅科研开发项目(201318、201404)和东北农业大学科学研究基金项目(2012RCB57) （51109036、51408107）
