实际上大部分引入物种(对生态环境)一点(消极)影响也没有。
Indeed, most species that get introduced don't have much effect at all.
但由于人为因素的影响和破坏，草地生态环境发生严重退化。
Eco - environment of grassland degraded seriously because of human influence and destruction.
贵州矿业开发对生态环境的影响较大。
The exploitation of mining industry has great influence on environment.
因此，不同生态环境的土壤对木霉的生存影响很大。
It is concluded that different soil environment may greatly affect the survival of Trichoderma.
本研究还显示，生态环境是影响山羊绒直径的重要因素。
In addition, this study indicated that the environment was an important factor influencing down diameter.
本研究还显示，生态环境是影响山羊绒直径的重要因素。
In addition, this study indicated that the environment was an important factor influencing down diameter.
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