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几种人工林土壤碳储量研究 预览 被引量:37

Studies of the Carbon Storages of Soils under the Different Kinds of Plantations
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摘要 对鹤山几种不同人工林的土壤碳的研究,结果表明不同植被作用下的土壤碳储量存在差异.人工林地、草地土壤有机碳含量均随土壤深度增加而减少.在同一深度不同人工林有机碳含量比较:木荷林土壤最高,大叶相思林土壤最低.全氮的变化趋势也与有机碳一样,随土壤深度增加而递减.土壤有机碳储量的计算结果为:柠檬桉105.67 t·hm-2,湿地松104.61 t·hm-2,马占相思114.62 t·hm-2,大叶相思71.49 t·hm-2,木荷127.66 t·hm-2,草地89.31 t·hm-2.据此认为,植树造林是增加土壤有机碳积累的有效措施,其中以营造乡土树种木荷林效果最好. The study results of carbons of soils under some different kinds of plantations in Heshan showed that the differences of carbon storages of soils existed under the actions of different kinds of plantations.The soil organic carbon contents of plantation lands and grassplots decreased with the increase of soil deepness.The content comparison results of organic carbons at the same deep under different plantations showed that the organic carbon content of soil under Schima superba forest was highest,that of soil under Acacia auriculaeformis forest was lowest.The total nitrogen content changing tendency was the same as the tendency of organic carbon content.The calculated result of soil organic carbon reserve was the following:the soil organic carbon reserve of forest land of Eucalyptus citriodora 105.67 t·hm~(-2),that of Pinus elliotu 104.61 t·hm~(-2),that of Acacia mangium 114.62 t·hm~(-2),that of Acacia auriculaeformis 71.49 t·hm~(-2),that of Schima superba 127.66 t·hm~(-2),that of grassplot 89.31 t·hm~(-2).According to the above,this paper concluded that the afforestation was the effective measure for increasing the soil organic carbon accumulation,the effect of planting the indigenous tree species S.superba was best.
作者 李跃林 胡成志 张云 文锦柱 LI Yue-lin~1,HU Cheng-zhi~2,ZHANG Yun~(1,3),WEN Jin-zhu~2 (1.South China Institute of Botany,CAS,Guangzhou 510650,China; 2.Heshan Forestry Bureau, Heshan 529700,China; 3.Resource and Environment College,Hubei University,Wuhan 430062,China)
出处 《福建林业科技》 2004年第4期 4-7,共4页 Journal of Fujian Forestry Science and Technology
基金 国家自然科学基金,中国科学院知识创新工程项目,中国科学院试验站基金
关键词 土壤碳 碳储量 木荷 人工林 土壤有机碳 大叶相思 土壤深度 增加 植树造林 变化趋势 soil organic carbon carbon reserve plantation Heshan
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