小灌区农田土壤水分析

Analyzing Soil Water Regime of Farmlands in A Small Irrigation Area

对山西省小灌区农田土壤水分在时空分布及其影响因素进行了分析。结果表明:大气降水、农田灌溉、作物蒸腾和田间土壤蒸发是影响土壤水分变化的主要因素。农田土壤水分分布随着作物的种类而变化。

This paper analyzed the temporal and spatial distribution of soil moisture and the influencing factors in farmlands of a small irrigation area.The results show that precipitation,irrigation,crop evapotranspiration and soil evaporation are the main factors that affect soil moisture regime.Farmland moisture distribution also varies with the kind of growing crops.