The abundance and availability of water and nutrients in a soil ecosystem determine its fertility.

土壤生态系统中水分和养分的丰度和有效性决定土壤的肥力。

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Soil environmental capacity is the maximum tolerable amount of pollutants inputed into a soil ecosystem, which still maintains its normal structure and functions.

土壤环境容量是输入土壤生态系统污染物的最大允许负荷，此时该系统仍保持正常的结构和功能。

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It was concluded that tourism activities significantly affected the soil ecosystem in the Zhangjiajie National Forest Park.

旅游活动已对张家界国家森林公园土壤生态系统产生了较大影响。

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Increased soil erosion and sedimentation rates can also jeopardize the array of ecosystem ser-vices provided by the watersheds.

UNESCO: Dublin Core

Biodiversity, which includes species, ecosystems, and ecological processes, is essential for the long-term maintenance of ecosystem services like photosynthesis, nutrient recycling, soil fertility, provision of fresh water, disaster prevention, and many others.

FORBES: Conservation International: Stemming the Tide of Environmental Crises, Part Five