ASW：有效土壤水

“有效土壤水”作为土壤与植物研究中的关键指标，是指土壤中可供植物根系吸收利用的水分总量。在学术文献和专业交流中，为方便书写与引用，常将其英文术语“Available Soil Water”缩写为ASW。这一概念广泛应用于农学、林学、生态学等领域，对评估作物水分状况和制定灌溉策略具有重要意义。

The result showed that the available soil water quantity varied and was affected by precipitation apparently during a year.
结果表明，①土壤有效水量年内变化明显，受降水影响显著；
At last, A drought index model was developed by considering the water requirement of winter wheat and the available soil water content.
最后，根据冬小麦的需水规律和土壤有效水含量构造干旱指数模型。
After the manure being applied in the soil, the tendency of field moisture capacity and available soil water was shown increasing.
保水缓释肥施入土壤后，随所含保水剂量的增加，田间持水量和可利用水分均呈上升趋势。
Effect of available soil water at planting on growth of root, canopy and soil water use of winter wheat in field
不同生育期干旱对冬小麦根冠生长发育的影响底墒对小麦根冠生长及土壤水分利用的影响
Based on data available from soil water conservation, soil monitoring and agricultural environment protection, analysis was done of the effects of human activities on cultivated land in Guangdong Province.
根据水土保持、土壤监测和农业环保数据，对人为活动给广东省耕地造成的影响进行了分析。

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