Green land has irreplaceable function to the improvement of urban ecosystem.

绿色植物对区域生态系统整体功能的改善有着不可替代的作用.

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First, an urban ecosystem health assessment indicator system is set up.

首先建立城市生态系统健康评价指标体系.

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This paper had done gualitation and quantitative analysis in major environment factor and overall urban ecosystem.

本文对义乌城区主要环境因子;整体生态环境质量作了定性、定量分析.

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As one of populous artificial ecosystems ecology domain, the security of urban ecosystem is more fragile.

作为人口高度集聚的人工生态系统, 城市生态系统的安全性更加具有脆弱性.

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The construction and development of these areas can exert an influence on development of urban ecosystem.

这些区域的建设和发展能够对城市生态系统发展产生影响.

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