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湿润亚热带峰丛洼地岩溶土壤系统中碳分布及其转移
引用本文:常家传,鲁长虎,吴建平,尤兆群.湿润亚热带峰丛洼地岩溶土壤系统中碳分布及其转移[J].生态学杂志,2000,19(1):70-73.
作者姓名:常家传  鲁长虎  吴建平  尤兆群
作者单位:1. 南京农业大学资源环境科学学院, 南京210095;2. 桂林岩溶地质研究所, 桂林541004
基金项目:国家自然科学基金资助项目(批准号39370137)
摘    要:以桂林丫吉村岩溶试验场为例,研究了湿润亚热带峰丛洼地表层岩溶带生物量碳库、凋落物碳库、土壤有机碳库(SOM)及其活泼性、有机碳分解速率、土壤中CO2浓度和土壤呼吸CO2排放,表明岩溶系统中丰富的碳库提供了系统中CO2的来源,并用D13C证实春夏岩溶活跃季节中岩溶输出C约60%来自土壤CO2.由此认为,驱动岩溶作用的CO2并非直接来自大气CO2,而是大气-植物-土壤-水碳素转移的结果,因而揭示了土壤作为碳环境地球化学界面对于表生带岩溶作用的驱动意义.

关 键 词:岩溶作用  土壤碳  碳循环
收稿时间:1998-07-07

Dusky Thrush and Amur Corktree in Nature Ecosystem
Chang Jiachuan,Lu Changhu. Wu Jianping,You Zhaoqun.Dusky Thrush and Amur Corktree in Nature Ecosystem[J].Chinese Journal of Ecology,2000,19(1):70-73.
Authors:Chang Jiachuan  Lu Changhu Wu Jianping  You Zhaoqun
Institution:College of Resources and Environment, Nanjing Agricultural University, Nanjing 210095
Abstract:Both dusky thrush(Turdus numanni) and Amur corktree ( Phellodendron amurense) are only distributed in East Asia. Dusky thrush pass through or stay at the distribution area of Amur corktree during its migrating or wintering period. The thrush mainly eat fruits of Amur corktree and disperse the seeds at the same time. A mutualism exists between the bird and the tree. The Amur corktree are dispersed mainly by the thrush. Under natural condition, seeds of Amur corktree can not germinate under the mother tree.
Keywords:nature ecosystem  dusky thrush  amur corktree  
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