| 桂林岩溶洼地生态系统中大气CO2动态及环境意义 |
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| 引用本文： | 曹建华,潘根兴.桂林岩溶洼地生态系统中大气CO2动态及环境意义[J].地质论评,1999,45(1):105-111. |
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| 作者姓名： | 曹建华 潘根兴 |
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| 作者单位： | [1]中国地质科学院岩溶动力学开放研究实验室 [2]南京农业大学资源环境学院 |
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| 基金项目： | 国家自然科学基金重点项目“中国典型岩溶动力系统与环境相互作用及演变”(编号49632100)，地质矿产部“九五”重要基础项目“岩溶环境系统的运动规律及其对全球演化的研究”(编号9501104)，岩溶动力学开放研究实验室资助 |
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| 摘 要： | 对桂林岩溶试验场岩溶洼地生态系统中大气ＣＯ２动态的昼夜观测结果说明，岩溶洼地对大气ＣＯ２具有一定的调蓄作用，并促进岩溶发育；植被的光合呼吸作用是制约大气ＣＯ２日动态直接的因素，而土壤ＣＯ２向大气的排放居次要地位。
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| 关 键 词： | 岩溶洼地 岩溶作用 大气 二氧化碳 生态系统 |
Atmospheric CO2 Dynamics in the Guilin Karst Depression Ecosystem and Environmental Significance |
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| Cao Jianhua.Atmospheric CO2 Dynamics in the Guilin Karst Depression Ecosystem and Environmental Significance[J].Geological Review,1999,45(1):105-111. |
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| Authors: | Cao Jianhua |
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| Abstract: | The diumal observations on atmospheric CO2 dynamics in the Guilin karst depression ecosys- tem indicate the following: the karsi depression has a certain regulation effect on atmospherical CO2 and may accelerate karst development; the photosynthesis- respiration of bush vegetation is the direct factor for controlling the atmospherical CO2 dynamics in the karst depression ecosystem , while the CO2 emitting from soil, is less important. CO2 is both the important driving force of the karst process and the focus of the global change research. The key factor for carbonate rock dissolution and uptaking atmospheric CO2 is the dynamics of CO2 and water and their actions near the surface. The results of this research will be conductive to clarifying the mechanism of carbonate rock dissolution and uptaking atmospheric CO2 in terms of CO2 dynamic change and provide a new clue for the karst dynamic system and world carbon cycle study. |
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| Keywords: | karst depression CO2 dynamics karst process ecosystem Guilin |
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