The first proposes the extension and systematisation of surveillance sites to monitor forest decline.
第一项决议建议，扩建监测站并且将其系统化，用于监控森林退化。
The present paper is a review of the new progress of study on forest decline due to soil acidification from acid rain.
本文主要综述酸雨通过土壤酸化导致森林衰亡方面的国外最新研究进展。
Aluminum toxicity is a major factor in limiting growth in plants in acid soils. It has been suggested to cause forest decline.
铝毒害是酸性土壤上作物生长的主要限制因素和森林大面积退化的重要原因。
Forest decline is still poorly understood but leads to the loss of a high proportion of a tree's needles or leaves.
人们对森林衰退还知之甚少，但森林衰退会导致树叶和针叶大面积脱落。
Forest decline is still poorly understood but leads to the loss of a high proportion of a tree's needles or leaves.
人们对森林衰退还知之甚少，但森林衰退会导致树叶和针叶大面积脱落。
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