森林提供许多有价值的生态服务,诸如保护流域和生物多样性以及贮存碳素等,现已引起企业、政府乃至个人越来越多的关注,同时人们也意识到随着森林这些功能的退化甚至丧失所带来的危险和代价。这种退化既能引起洪水、山崩之类的局部灾难,也会导致全球气候变化之类的广泛影响。 Forests provide many valuable ecological services, such as protecting watersheds and biodiversity and storing carbon, which are now attracting more and more attention from businesses, governments and individuals. At the same time, people are also aware that as forests degenerate these functions and even Loss of the dangers and costs. Such degradation can cause both local disasters such as floods and landslides, as well as widespread effects such as global climate change.