According to relevant research and investigation, the declining tendency inthe growth of urban afforestation tree is largely due to soil quality in city.
在调查和研究中，我们发现，城市绿化树生长势衰弱的状态主要和城市土壤性质相关。
According to relevant research and investigation, the declining tendency inthe growth of urban afforestation tree is largely due to soil quality in city.
在调查和研究中，我们发现，城市绿化树生长势衰弱的状态主要和城市土壤性质相关。
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