墒情评价指标方法研究及应用

Study and Application of Soil Moisture Assessment Indicators

应用田间持水量实验成果,以旱情调查、历史旱情分析数据成果、历史典型年的墒情农情等资料分析建立起不同土壤质地、不同土层深度、不同干旱等级框架下的墒情评价指标。实践检验证明该评价指标使用简便、评价范围广且针对性强、评价结果合理并符合旱情实际。

Based on the experimental results of field soil moisture contents, integrated with drought condition survey data and historical drought analyses results, soil moisture assessment indicators are established for various types of soils. Also considered are soil depth factors and drought condition impacts. The wider experiments and applications further prove that the proposed assessment indicators are easy to use and can be applied to a wide range of situations. The application results are wel demonstrated and confirmed with drought situations.