期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
AWRA-L模型估算区域林冠降雨截留量 被引量:7
1
作者 芦新建 贺康宁 +3 位作者 王辉 王文义 赵丽娟 安国才 《农业工程学报》 EI CAS CSCD 北大核心 2015年第7期137-144,共8页
目前模拟林冠截留的Gash模型的应用多是针对某一特定点或特定林分开展,而在区域范围内的应用国内尚无报道,在国外也仅见其在澳大利亚水资源评价系统AWRA.L模型中的应用。该研究介绍了AWRA-L(Australian water resources assessment-land... 目前模拟林冠截留的Gash模型的应用多是针对某一特定点或特定林分开展,而在区域范围内的应用国内尚无报道,在国外也仅见其在澳大利亚水资源评价系统AWRA.L模型中的应用。该研究介绍了AWRA-L(Australian water resources assessment-landscape)模型,并利用GI_。ASS LAI遥感数据结合浸水法获得的林冠持水量,使用该模型对试验点白桦(Betula platyphylla Suk.)天然次生林2013年的林冠截留进行模拟。结果显示,基于Van等改进过的Gash模型的AWRA.L模型和基于Gash(1979)模型的AWRA—L(1979)模型,对累积林冠截留模拟的绝对误差分别为-4.4和1.5 mm,相对误差分别为-8.7%和3.0%;对于单场降雨林冠截留的模拟结果显示,2模型的模拟误差值分别为(-0.15±1.64)和(-0.03±1.39)mm,模拟值与实测值之间无显著差异。研究结果说明结合GLASS LAI遥感数据,AWRA-L模型可以应用于区域范围林冠截留的模拟,模拟结果较好。 展开更多
关键词 模型 遥感 降雨 林冠截留 叶面积指数 Gash awra-l 白桦
下载PDF
Application of multi-criteria decision-making methods to identification of soil moisture monitoring sites in an urban catchment in South Australia
2
作者 Dinesh Chammika Ratnayake Guna A.Hewa +1 位作者 David J.Kemp Alaa A.Ahmed 《Water Science and Engineering》 EI CAS CSCD 2022年第4期294-304,共11页
When choosing sites for monitoring of soil moisture for hydrological purposes,a suitable process that considers the factors influencing soil moisture level should be followed.In this study,two multi-criteria decision-... When choosing sites for monitoring of soil moisture for hydrological purposes,a suitable process that considers the factors influencing soil moisture level should be followed.In this study,two multi-criteria decision-making(MCDM)methods,the multi-influencing factor(MIF)method and the analytical hierarchy process(AHP)method,were used to identify the optimal soil moisture monitoring(SMM)sites in the Dry Creek Catchment in South Australia.The most representative areas for nine SMM sites were obtained using the MIF method,considering the factors of rainfall,soil type,land use,catchment slope,elevation,and upslope accumulated area(UAA).The AHP method was used to select the optimal sites using the site-specific criteria.30.3%of the catchment area in the Australian Water Resources Assessment Landscape(AWRA-L)Grid_DC2 can be considered acceptable as representative area with the MIF method.Four potential sites were evaluated for each AWRA-L grid using the relative weights of the site-specific criteria with the AHP method.The Grid_DC2 required two sites that had the highest overall weight chosen with the AHP analysis.The procedure was repeated for the remaining four AWRA-L grids within the study area to select the required SMM sites. 展开更多
关键词 Soil moisture monitoring Site selection MIF AHP awra-l Urban catchment
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部