美国林学会1981年7月召开理事会讨论了在森林地开矿的问题,指出矿物虽然是一种非常重要的非再生资源,但在林地开采对可再生森林资源及其利用影响很大。地下开矿会造成环境污染,另外,矿井倒塌对森林资源造成严重破坏。而地面开矿对森林资源的破坏更为严重,涉及到森林地貌以及水土流失等。美国地面开矿的土地约达500万 The American Society of Forestry held a meeting in July 1981 to discuss the issue of mining in the woodlands, pointing out that while mineral resources are a very important non-renewable resource, the exploitation of woodlands has a great impact on renewable forest resources and their utilization. Underground mining will cause environmental pollution, in addition, the collapse of the mine caused serious damage to forest resources. However, the destruction of forest resources by ground mining is more serious, involving the landforms of forests and soil erosion. The land on the ground in the United States is about 5 million