黄土丘陵区沟道小流域土壤有效储水量估算
文献类型:期刊论文
作者 | 高晓东 ; 吴普特 ; 赵西宁 ; 张宝庆 |
刊名 | 水利学报
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出版日期 | 2013 |
卷号 | 44期号:06页码:734-09 |
关键词 | 土壤水 soil moisture 时间稳定性 temporal stability 观测算子 observation operator 沟道 gully 小流域 watershed 黄土高原 Loess Plateau |
其他题名 | Estimating spatial mean available water storage in a small catchment |
中文摘要 | 黄土丘陵区特别是沟道复杂的地形为沟道小流域土壤有效储水量计算带来了困难。基于黄土丘陵区园则沟小流域2010—2012年土壤水分监测数据,采用时间稳定性分析和观测算子结合的升尺度方法,通过坡面单个监测点土壤有效储水量估算小流域不同尺度(坡面、沟道及小流域)土壤有效储水量。其中2010和2011年数据用于时间稳定性分析、观测算子构建以及坡面、沟道和小流域土壤有效储水量估算,2012年数据用于对其验证。结果表明通过坡面时间稳定点(单个点)土壤有效储水量不仅能够较为精确地估算坡面土壤有效储水量,也能通过构建观测算子较为精确地将其转换为沟道和小流域土壤有效储水量。验证结果表明,时间稳定点以及观测算子具有较高稳定性 |
英文摘要 | Abstract:The complex topography of the hilly area of the Loess Plateau (especially gullies) leads to the difficulty of calculating watershed- scale available water storage (AWS). Based on soil moisture datasets from 2010-2012 in the Yuanzegou catchment of the Loess Plateau,this study attempted to estimate AWS of hillslopes,gullies and watershed from one single sampling location on the hillslopes for each layer,by coupling time stability analysis with observation operators. The AWS datasets in 2010 and 2011 were used for time stability analysis,development of observation operators and estimation of AWS of hillslopes,gul⁃ lies and catchment. The AWS datasets in 2012 were used for validation. The results show that the AWS of hillslopes can be accurately estimated through that of one single hillslope time- stable location for each depth. Furthermore,the AWS of gullies and catchment are also well estimated from the hillslope time-sta⁃ ble location by using the method of observation operators. The validation analysis indicates that the time-sta⁃ ble location and the developed observation operators for various depths are temporally robust. |
语种 | 中文 |
公开日期 | 2014-10-21 |
源URL | [http://ir.iswc.ac.cn/handle/361005/5580] ![]() |
专题 | 水土保持研究所_水保所知识产出(1956-2013) |
推荐引用方式 GB/T 7714 | 高晓东,吴普特,赵西宁,等. 黄土丘陵区沟道小流域土壤有效储水量估算[J]. 水利学报,2013,44(06):734-09. |
APA | 高晓东,吴普特,赵西宁,&张宝庆.(2013).黄土丘陵区沟道小流域土壤有效储水量估算.水利学报,44(06),734-09. |
MLA | 高晓东,et al."黄土丘陵区沟道小流域土壤有效储水量估算".水利学报 44.06(2013):734-09. |
入库方式: OAI收割
来源:水土保持研究所
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