[1]刘明辉,王飞,李锐,等.土石山林区和黄土塬农区不同覆盖类型土壤水分差异性分析[J].水土保持研究,2011,18(03):187-190.
LIU Ming-hui,WANG Fei,LI Rui,et al.Discrepance of Surface Soil Moisture between Forestland of Earth-rock Mountain and Farmland of Loess Tableland Rural Section[J].Research of Soil and Water Conservation,2011,18(03):187-190.
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
18
期数:
2011年03期
页码:
187-190
栏目:
出版日期:
2011-06-20
- Title:
-
Discrepance of Surface Soil Moisture between Forestland of Earth-rock Mountain and Farmland of Loess Tableland Rural Section
- 作者:
-
刘明辉1, 王飞1,2, 李锐1,2, 焦俏1, 穆兴民1,2
-
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100
- Author(s):
-
LIU Ming-hui1, WANG Fei1,2, LI Rui1,2, JIAO Qiao1, MU Xing-min1,2
-
1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
-
- 关键词:
-
土壤表层水分指数; 土石山林区; 黄土塬农区; 降水
- Keywords:
-
surface soil moisture; soil stone mountain forest; loess tableland rural section; precipitation
- 分类号:
-
S152.7
- 摘要:
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土壤表层水分是洪水和干旱预报、土壤风蚀、农作物估产及环境灾害监测的的重要指标。以子午岭北部天然次生林及洛川农区为研究对象,分析了表层水分指数季节变化及降水条件下两地表层水分指数的变化特征。结果表明:林区土壤表层水分指数整体明显比农区高;受到降水影响,农区土壤表层水分指数响应时间短,表层土壤水分含量上升快;降水过后,土壤表层水分指数相同的情况下,林区最多可以比农区延迟一旬到达某一相对干旱的土壤表层水分状况,或者在10天左右的时间,林区土壤水分损失最少,只有农区土壤表层水分损失的50%或更少。
- Abstract:
-
The surface soil moisture is very important index of flooding and drought forecasting,soil erosion,crop yield estimation and environmental disaster monitoring.With the north Ziwu ridge natural second growth and Luochuan rural section as the research area,we analyzed seasonal changes of index of the surface soil moisture and the surface soil moisture index on precipitation conditions between the two areas.The results showed that:forest surface soil moisture index overall significantly higher than rural section;by precipitation influence,response time of the rural section surface soil moisture was short,and surface soil moisture content increased more quickly.After precipitation,in the same surface soil moisture,the forest surface soil moisture can drop to a certain level later than rural section for 10 days.Or,in the 10 days,the forest surface soil moisture lost less than rural section for 50 percents.
参考文献/References:
[1] 王建明.基于ERS散射计数据的青藏高原土壤水分估算方法研究[D].北京:中国科学院遥感应用研究所,2005.
[2] 刘增灿.微波散射测量及土壤水分反演研究[D].成都:电子科技大学,2009.
[3] Wagner W.Soil Moisture Retrieval from ERS Scatterometer Data[D].Austria:Vienna University of Technology,1998.
[4] Wagner W,Lemoine G,Rott H.A method for estimating soil moisture from ERS scatterometer and soil data[J].Remote Sensing of Environment,1999,70:191-207.
[5] Wagner W,Scipal K,Pathe C,et al.Evaluation of the agreement between the first global remotely sensed soil moisture data with model and precipitation data[J].Journal of Geophysical Research-Atmospheres,2003,108(19):4611.
[6] Ceballos A,Scipal K,Wagner W,et al.Validation and downscaling of ERS Scatterometer derived soil moisture data over the central part of the Duero Basin,Spain[J].Hydrological Processes,2005,19:1549-1566.
备注/Memo
收稿日期:2011-3-9;改回日期:2011-3-26。
基金项目:中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室基金项目(10502-Z12-7和10502-Z7-2);中荷联合主题研究项目(中国科学院对外合作重点项目计划,GJHZ1018;Netherlands Organization for Scientific Research,NWO, OND1339291);欧盟第六框架计划项目(EU FP6,37046)
作者简介:刘明辉(1985- ),男,硕士研究生,研究方向为GIS和遥感技术在水土保持中的应用。E-mail:285480876@qq.com
通讯作者:王飞(1971- ),男,陕西户县人,博士,副研究员,从事水土保持环境效应评价、荒漠化防治和气候变化等研究。E-mail:wafe@ms.iswc.ac.cn
更新日期/Last Update:
1900-01-01