This paper presents a simple calculation method for calculating economical losses caused by ecological environment deterioration in arid areas as well as the calculation steps.

对干旱地区因环境劣化所造成的经济损失提出了基本思路和简单的计算方法，并给出了计算步骤。

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Ecological balanced fertilization is new fertilization system, which is considered from soil-environment-human. Based on the theory of its model and carried by ecological fertilizer.

生态平衡施肥以生态平衡施肥模型为理论基础，从土壤-环境-人类综合考虑出发，以生态型肥料为载体的新体系。

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Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.

在每一次物种大灭绝后，都有一次突然的进化爆发，因为会有新物种出现来填补灭绝创造的生态位。

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Tropical countries are plagued by ecological conditions that produce hundreds of infective bites per year per person.

ECONOMIST: BY INVITATION: Helping the world’s poorest | The

Once the revamp is completed hibernating boxes for the bats will be placed in attic areas of the new buildings by ecological consultants, Ecology Planning and Research Ltd.

BBC: Pipistrelle bat

Demand outstrips supply: In less the 50 years, the Mediterranean region nearly tripled its demands for ecological resources and services, and increased its ecological deficit by 230 percent.

UNESCO: OFFICE IN VENICE