| environ. |
environmental impact of forestry The world's forestry resources are shrinking at an alarming rate. The need for foreign exchange encourages many developing countries to cut timber faster than forests can be regenerated. This overcutting not only depletes the resource that underpins the world timber trade, it causes loss of forest-based livelihoods, increases soil erosion and downstream flooding, and accelerates the loss of species and genetic resources (世界的森林资源正以惊人的速率缩小。因与外国交易上的需要，许多开发中国家其林木砍伐的速率高于造林的速率。这些过度的砍伐不仅耗尽支持国际木材交易的森林资源，也造成倚赖森林维生的生物死亡，且增加土壤的侵蚀和下游的水患，也加速物种和基因资源的消失。) |
