管网工程水土流失预测方法及防治措施

Forecasting methods and prevention measures of water and soil loss in pipe network project

水土流失预测是编制水土保持方案的必备内容,是开展水土流失防治的科学基础.水土流失预测方法有土壤流失方程法、类比法、分类分级法、流失系数法等.根据江西省天然气管网工程广丰支线、玉山支线项目的特点,采用分类分级法预测项目的新增水土流失量,确定水土流失防治的重点区域和重点时段,为水土流失的防治工作提供指导意见.

Water and soil loss prediction is an essential part of soil and water conservation program,and it is the scientific basis of soil and water erosion prevention and control.Water and soil loss prediction methods include slope erosion equation method,analogy method,classification and classification method,loss coefficient method,etc.According to the characteristics of Guangfeng branch and Yushan branch of Jiangxi natural gas pipe network project,using the classification calculation method calculate the amount of the new increased water and soil erosion of the project.The key areas and periods of water and soil loss control can be determined,and to provide guidance for the prevention and control of soil erosion.