Soil and Water Conservation Effect of Different Terrace Configurations in Land Consolidation Project
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Soil and Water Conservation Effect of Different Terrace Configurations in Land Consolidation Project
Vol. 25, Issue 4, (2011)
作者机构:
1. 北京师范大学环境学院水环境模拟国家重点实验室
2. 陕西省国家建设征地服务中心
3. 北京师范大学地理与遥感科学学院
4. 国土资源部土地整理中心
作者简介:
基金信息:
DOI:
CLC:
Published:2011
稿件说明:
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LIU Shi-liang, WANG Cong, ZHANG Xi-lai, et al. Soil and Water Conservation Effect of Different Terrace Configurations in Land Consolidation Project[J]. 2011, 25(4).
DOI:
LIU Shi-liang, WANG Cong, ZHANG Xi-lai, et al. Soil and Water Conservation Effect of Different Terrace Configurations in Land Consolidation Project[J]. 2011, 25(4).DOI:
Soil and Water Conservation Effect of Different Terrace Configurations in Land Consolidation Project
摘要
利用WEPP坡面土壤流失模型
基于典型区的土地整理项目状况
模拟不同坡度条件下
梯田空间配置的水土保持效应
通过对坡度、降雨量和梯田层次的设置
分析30种情景模式下
土壤流失量和产沙量的变化规律。结果表明
基于物理过程的WEPP机理模型能够较好地定量模拟土壤在坡面上的流失情况。总体上看
梯田建设对于土壤流失量和产沙量都具有明显的影响:对于土壤流失量来说
梯田调控了土壤在坡面上流失的空间特征
降低了土壤坡面流失情况;对于产沙量来说
梯田建设有效拦截了产沙过程
随着坡度从5°到25°
拦截率从20%上升到84%;对于梯田数量来看
梯田数目越多
土壤流失量越低
但是产沙量变化不大。对比不同坡度和降雨强度
坡度和降雨强度仍是决定性因子。
Abstract
In this study
based on typical land consolidation project conditions
WEPP model was used to simulate the effects of different terrace configuration on soil and water conservation under different slopes and precipitation intensities.By the combination of different slopes
rainfalls and the terrace numbers
30 scenarios were set to model the soil loss and sediment yield.The results showed that WEPP model could quantitatively describe the loss of soil conditions on the slope with the mechanism of physical proces...
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Related Author
YU Yang
JIANG Qunou
WANG Zixuan
ZHEN Ziyun
LIU Lanhua
HE Caisong
ZHOU Yang
YAN Shijie
Related Institution
Energy Saving and Environmental Protection and Occupational Safety and Health Research Institute, China Academy of Railway Sciences Corporation Limiter
Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing Forestry University
School of Soil and Water Conservation, Beijing Forestry University
College of Resources and Environment,Huazhong Agricultural University
College of Land Resources and Environment, Jiangxi Agricultural University