Li Rui,Xu Chuanzao.Soil and Water Loss Prediction and Monitoring in USA——Extracts from 《Investigation Report of New-tech on Soil and Water Conservation in USA》[J].Research of Soil and Water Conservation,1998,5(02):119-123.
美国水土流失预测预报与动态监测──赴美水土保持新技术考察报告摘录
- Title:
- Soil and Water Loss Prediction and Monitoring in USA——Extracts from 《Investigation Report of New-tech on Soil and Water Conservation in USA》
- Keywords:
- soil and water conservation; prediction; monitoring; model
- 摘要:
- 依据近期对美国水土保持新技术考察，介绍了美国水土流失预测预报和动态监测最新进展。美国目前正在研究和应用的水土流失预测预报模型主要包括，一类是以通用土壤流失方程式修订版（RUSLE）为代表的基于经验和统计的回归模型；一类是以水力侵蚀预报项目研究成果（WEPP）为代表的着重过程研究的模型。前者主要用于估算一定区域的土壤侵蚀量，后者用于研究土壤侵蚀随时间和空间变化的规律。模型所需水土流失动态数据的采集、传输、分析、处理以及发布主要依靠由高新技术支持的全国数据网络系统。
- Abstract:
- A brief introduction of current progress on soil and water loss prediction and monitoring in USA is presented based on the investigation early this year. There are 2 main types ofsoil and water loss prediction model to be used in USA. One such as RUSLE,is based on experimental and statistical data and used for evaluation of amount of soil loss from a region, Another one is represented by WEPP(Water Erosion Prediction Project), which is used to deal withthe process of soil erosion by water. Soil and water loss data collection, transmission, process-ing, analyzing and releasing are supported by the national datanet work of hightech.
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备注/Memo
收稿日期:1998-3-10;改回日期:。