覆盖作物可改善土壤持水能力，但是对土壤硬度的影响与土壤含水率有关。

Cover crops can improve the water holding ability of soil; however, its effect on soil hardness depends on the moisture content of soil.

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植被覆盖中等的土壤持水能力允许消耗值一般为50%，而植物覆盖率低的土壤持水能力允许消耗值通过为75%。

A medium-value turf is typically managed at 50%AD, whereas a low-value turf could have an AD of 75% of the soil reservoir capacity.

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从土壤入渗功能、枯枝落叶层最大持水量以及土壤贮水能力等方面进行研究，探讨不同植被类型对土壤的改良效果。

At last in order to analyze the improved effect on soil, the staggered research was discussed in the following aspects: infiltration capacity of soil, water holding capacity for soil and litter layer.

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