贫瘠的土壤、崎岖的地表以及恶劣的气候造成典型的生存性农业，仅能种植维持农场家庭生存所必需的作物。

Poor soils, uneven terrain, and a severe climate led to typical "subsistence" farming, the growth of only those crops necessary for family maintenance.

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喀斯特流域枯水径流特征值的影响因素很多，如气候、流域面积、岩性、土壤、地貌等等，而能够确知的信息不多。

There are many factors that affect the low flow in a karst basin, such as climate, catchment area, lithology, soil, landform and so on, most of which are uncertain.

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高度风化的酸性红壤，受亚热带气候及不合理利用影响，土壤养分含量偏低，尤其是土壤磷素的含量及有效性也很低。

Influenced by the subtropical climate and unreasonable use in deeply weathering red soils, the nutrient content is lower, especially the validity of phosphorus.

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