湿地中，水位梯度是一个重要的环境梯度，湿地植物沿水位梯度式样反应的研究是湿地生态学重要的研究内容之一。
Water level gradient is an important environmental gradient in wetland, the research of reaction of wetland plant to water level gradient is an important content of wetland ecology.
景观格局变化沿某一梯度具有自相关可能预示某种生态学过程在起着重要作用。
The observation that landscape pattern had a high degree of autocorrelation in a certain gradient possibly indicates that some kind of ecological process plays an important role.
招聘发生在地点鱼类进入可利用的一小部分人口已经被动而流离失所的电流，然后通过主动运动破坏生态环境指标梯度。
Recruitment takes place in locations where fish entering the exploitable fraction of the population have been passively displaced by currents and then by active movement up habitat index gradients.
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