soil effective moisture 土壤有效水分
The factors that affect effective utilization of rainwater resources consist of heavy leakage and asymmetry seasonal distribution of rainfall and peculiar soil moisture character in coincidence.
降水大量渗漏、雨水资源季节性分配不均、特殊的土壤水分物理性质等偶合构成了湘西北岩溶山区雨水资源有效利用的影响因素。
Contour planning with or without terracing is effective in conserving both soil and moisture.
等高栽植，无论做或不做梯田对于保持水土都能有效。
The results show that the soil quality is poor, with low effective moisture and nutritional elements, without no structure.
分析结果表明，排土场土壤质地差、无任何结构、渗透性差、土壤坚实、有效水分及营养元素含量低。
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