It is very important for regional agricultural water management by researching the relationship between water consumption and yield,and proposing the optimal irrigation schedule.
Timely,accurate estimation of land surface water cycle process has great importance in drought estimation,irrigation management and water resources comprehensive utilization.
Most of the paddy rice in Sanjiang Plain is irrigated with groundwater.In recent years water requirement is increasing with the rapid increase of paddy field while groundwater table is falling continu
Trends,mutations and periodicity of precipitation variationin the Upper Yellow River Basin(UYRB)were studied using a fitted liner model,Mann-Kendall test,moving t-test and Morlet wavelet based on the
An improved subsurface drainage with characteristics of less land occupied and reasonable flow rate drained was presented to overcome the disadvantage of small flow rate of conventional subsurface pip