可以说，生态系统的特性要比组成生态系统的单个生物体性质更加稳定。
We can say that the properties of an ecosystem are more stable than the individual organisms that compose the ecosystem.
就像生物学：一个一群微生物混杂地交换基因和特性的生态系统，进化加速了。
It's like biology: in an ecosystem where microbes are promiscuously swapping genes and traits, evolution speeds up.
但森林削减坡面径流与侵蚀的效益与森林树种自身的生物、生态学特性及其林分结构状况等密切相关。
However, the reducing benefits of runoff and erosion of forests has a highly correlation with the tree species' biological, ecological property and its stands structural status.
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