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研究华南南亚热带不同演替阶段植被对养分保护、碳氧平衡和对酸雨的缓冲作用的结果表明 :1 1 0 0年生季风常绿阔叶林植物 N、P、K贮量是草地和芒萁群落的 1 2～ 39倍 ,灌木林的 1 2～ 1 6倍 ;死地被物 N、P、K贮量是草地和芒萁群落的 1 1～ 36倍 ,灌木林的 3.1～ 5.2倍 .30年生季风常绿阔叶林净初级生产量的 N、P、K贮量是草地、芒萁、灌木群落的 1 .9～ 5.1倍 .2 1 0 0年生季风常绿阔叶林植物碳贮量是草地、芒萁、灌木群落的 1 3～ 49倍 . 30年生季风常绿阔叶林植物碳净固定量是草地、芒萁、灌木群落的 2 .3～ 3.4倍 ,前者的氧释放量也明显大于后者 . 3芒萁、灌木群落和季风常绿阔叶林穿透雨的平均 p H值比降雨p H值分别高 1 .1 3、1 .0 3和 1 .90个单位 ,季风常绿阔叶林对酸雨的缓冲能力明显高于芒萁、灌木群落 . 4正向演替可加强植被的环境效应 ,让草地、芒萁、灌木群落演替成为季风常绿阔叶林 ,有利于区域生态环境的改善 .
The results of the study on nutrient conservation, carbon-oxygen balance and acid rain buffering in different successional stages of the South China subtropical zone showed that the N, P and K stocks of the annual monsoon evergreen broad-leaved forest in the 11th year were grassland and mangrove 12 to 39 times of that of shrubs and 12 to 16 times of shrubs. The stocks of dead toplants N, P and K were 11 to 36 times of that of grassland and mangrove, and 3.1 to 5.2 times of shrubs .30 The N, P, K stocks of annual primary monsoon evergreen broad-leaved forests are 1.9-1.5 times of that of grassland, mangrove and shrub communities. The annual carbon stocks of the annual monsoon evergreen broad-leaved forest Which is 13-49 times higher than that of grassland, mangrove and shrubs.The net carbon fixation of 30-year monsoon evergreen broad-leaved forest is 2.3-3.4 times that of grassland, mangrove and shrub community, Obviously larger than the latter.3 The mean p H of rain through mangroves, shrubbery and monsoon evergreen broad-leaved forest are respectively 1.11, 3.0, 1.90 and 1.90 units higher than that of rainfall, monsoon The buffer capacity of the evergreen broad-leaved forest for acid rain was significantly higher than that of the mangroves and shrubbery.4 Positive succession can enhance the environmental effects of vegetation and make the grassland, mangrove and shrub Off the succession became monsoon evergreen broad-leaved forest, help to improve the regional ecological environment.