There were certain drawbacks in the three ways of gathering, which had many negative effects on the ecological environment and the society of the time.
这三种采木形式都有一定的弊病，这使皇木采办对当时的生态环境和社会都产生了很大的消极影响。
Urban ecological environment of reflects the human living environment, but also reflect the effects of a city's style and taste, each place are trying to create the image of the city.
城市生态环境反映了人类对居住环境产生的影响，有问必答网也是反映了一个城市的风格和口味，各个地方都在努力打造城市形象。
Ecological products have the characteristics of profit outflowing. Financial means can be adopted to solve the problem of external effects of ecological environment.
生态环境产品具有利益外溢的特点，财政手段可以有效解决生态环境外部效应问题。
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