The forest ecosystem has been degraded due to illegal logging.

由于非法砍伐，森林生态系统已经降解的。

The degeneration of the forest ecosystem is alarming to environmentalists.

森林生态系统的退化让环保人士感到震惊。

The forest ecosystem is home to many species of plants and animals.

森林生态系统是许多植物和动物物种的家园。

Forest ecosystem is the biggest land ecosystem in the world.

森林生态系统是地球上最大的陆地生态系统.

Ulmus pumila open forest ecosystem plays an important role in Otindag Sandy Land.

榆树疏林生态系统是浑善达克沙地的重要组分之一.

Intimidation of forest pest and trends of insect diversity have important value for rapidly assessing forest ecosystem health.

森林害虫胁迫及昆虫多样性变动，对于评估森林生态系统健康状况具有重要价值。

Root respiration in the forest ecosystem, which global change can greatly affect, is the basis of carbon efflux for the whole ecosystem.

森林生态系统内根系呼吸对全球变化的响应积极。

The results showed that forest ecosystem biomass was inhibited by environmental pollution.

结果发现，环境污染对树木的生长以及森林牛物量影响较大。

Shenyang urban forest ecosystem health was evaluated with bio - indicator and comprehensive methods.

采用生物指示物法和综合评判法对沈阳城市森林生态系统健康状况进行了评价.

And they've destroyed the kelp forests, and with it, the kelp forest ecosystem in southwestern Alaska.

此外,它们还会破坏阿拉斯加西南部的海藻林生态系统。