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由于纯马尾松林地的枯枝落叶分解慢，故要下土壤有机物质积累少；其分解物为酸性，抑制其他伴生树种，加速土壤板结；加之权针富含松脂易燃烧，农民将其收集后用做燃料，造成林下裸露。因此，纯尾松林地不能形成乔灌草配套的水土保持植被条件，一遇暴雨洪水即产生水生流失...
Due to the slow decomposition of litter in pure Pinus massoniana forest, less organic matter was accumulated in the soil; its decomposition products were acidic and inhibited other associated trees and accelerated soil compaction; besides, the right needle was rich in turpentine and was easily collected by peasants Used as a fuel, resulting in exposed forest. Therefore, the pure pine woodland can not form the soil and water conservation vegetation conditions supporting the growth of trees, shrubs and grass, and it will cause aquatic loss in the event of stormy floods.