“We don’t think this can persist for too long because other limitingfactors will come into play, like water availability and soil nutrients, ” hesaid.

他说："我们认为这种趋势不会持续太长时间，因为将会出现一些限制因素，像水分的可利用性及土壤养分。"

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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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Water stress can decrease the availability of soil nutrients.

水分亏缺可使土壤养分的有效性降低。

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