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三峡库区多功能防护林体系主要由水源涵养林、水土保持林、防风固沙林、农田防护林、护岸护滩林、道路防护林及四旁植树等林种构成。多功能防护林布局一是要遵循不同地貌部位的立地条件和社会经济发展需求，最大限度地发挥多功能防护林涵养水源、保持土壤、改善环境等生态功能；二是根据防护对象及可能发生的自然灾害，因地制宜、因害设防布设不同的防护林林种；三是以保障库区的可持续发展为原则，使区域内的自然资源最有效、最合理地得以利用；四是在多功能防护林体系建设中，工程措施与生物措施相结合；五是生态效益与经济效益相结合，当前利益与长远利益相结合；六是在树种选择上实行乔、灌、草相结合。林种配置上，网、带、片相结合；七是以防护林为主，多林种协调发展，使三峡库区防护林体系结构整体优化。
The multi-functional shelterbelt system in the Three Gorges Reservoir Region is mainly composed of water conservancy forests, soil and water conservation forests, windbreak and sand fixation forests, farmland shelterbelts, bank protection and beach beaches, road shelterbelts and four-sided tree planting. First, multi-functional shelter forest layout should follow the different landform site conditions and social and economic development needs, to maximize the multi-purpose shelter forest water conservation, soil conservation, environmental improvement and other ecological functions; the second is based on the protection of objects and possible natural disasters , According to local conditions, because of the detriment of the establishment of different types of shelterbelt forest protection; third is to protect the sustainable development of the reservoir area for the principle that the region’s natural resources are the most effective and most reasonable to use; Fourth, in the multi-functional shelter forest system , The combination of engineering measures and biological measures; the fifth is the combination of ecological and economic benefits, the combination of current and long-term interests; and the sixth is the combination of trees, shrubs and grass on the choice of tree species. The configuration of forestry, net, belt, film combination; seven is the main shelterbelts, multi-species coordinated development of the Three Gorges reservoir area shelterbelt architecture overall optimization.