Influence of land covers on carbon sink of underground river：A case in the Dagouhe Basin in Guangxi

Qin Xiao-qun; Meng Rong-guo; Mo Ri-sheng

doi:10.3969/j.issn.1001-4810.2011.04.004

Volume 30 Issue 4

Dec. 2011

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Qin Xiao-qun, Meng Rong-guo, Mo Ri-sheng. Influence of land covers on carbon sink of underground river：A case in the Dagouhe Basin in Guangxi[J]. CARSOLOGICA SINICA, 2011, 30(4): 372-378. doi: 10.3969/j.issn.1001-4810.2011.04.004

Citation:

Qin Xiao-qun, Meng Rong-guo, Mo Ri-sheng. Influence of land covers on carbon sink of underground river：A case in the Dagouhe Basin in Guangxi[J]. CARSOLOGICA SINICA, 2011, 30(4): 372-378. doi: 10.3969/j.issn.1001-4810.2011.04.004

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Influence of land covers on carbon sink of underground river：A case in the Dagouhe Basin in Guangxi

doi: 10.3969/j.issn.1001-4810.2011.04.004

1.
Institute of Karst Geology, CAGS
2.
Team of Hydrogeology and Engineer Geology of Guangxi

Received Date: 2011-10-17
Publish Date: 2011-12-25

Abstract

Abstract

Taking the Dagouhe Basin in Guangxi Autonomous Region as a study area, the influences of land covers on carbon sink of underground rivers on both the east and west banks are analyzed in this paper. The forest land and farmland respectively occupy 56.3 % and 15.15 % of the total area on the east bank, but in the west bank they only respectively occupy 20.8 % and 12.95 % of the total area. The bare rocky land and wasteland respectively occupy 29.57 % and 25.95 % of the total area on the west bank, while the bare rocky land and wasteland only respectively occupy 14.19 % and 10.98 % of the total area on the east bank. The differences of land covers on the east bank and the west bank of the Dagouhe lead to a lot difference of geochemical indexes in the carbon cycle of the underground river between the two banks, for example, HCO3-,Ca2+ and PCO2 contents of the underground river on the east bank, being 233.71 mg/L, 85.5mg/L and 909.46 Pa respectively, are higher than that on the west bank, 177.26 mg/L,64.65mg/L and 257.37 Pa respectively; but SIC and pH value of the underground river on the east bank, being 0.12 and 7.40 respectively, are lower than that on the west bank, 0.38 and 7.85 respectively. Therefore，there are stronger karst dynamic conditions on the east bank. That is why the mean carbon sink intensity of the underground river on the east bank is 14% higher than that on the west bank. Especially, the carbon sink intensity of the Xiaqiao Underground Stream on the east bank is 3.7 times as that of the Dandong Underground Stream on the west bank of the Dagouhe. The waterδ13CDIC and TOC data of the underground river on the two banks can further prove that some carbon content of the underground river water comes from the land cover environments. Land cover has a very important influence on carbon sink intensity of the underground river.
- land cover,
- ground stream,
- karst carbon sink,
- Dagou Basin

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References(68)

References

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[15]	蒋忠诚.中国南方表层岩溶系统的碳循环及其生态效应［J］.第四纪地质,2000,20(4):316-324.
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[20]	Jiang Z，Yuan D. CO2 source-sink in karst processes in karst areas of China［J］.Episodes,1999,37(1):19-22.
[21]	刘再华,WolfgangDreybrodt,王海静.一种由全球水循环产生的可能重要的CO2汇［J］.科学通报,2007,52(20):2418-2422.
[22]	徐胜友,何师意.碳酸盐岩土壤CO2的动态特征及其对溶蚀作用的驱动［C］//岩溶与人类生存、环境、资源和灾害.桂林:广西师范大学出版社,1998:82-90.
[23]	袁道先,刘再华,蒋忠诚,等.碳循环与岩溶地质环境［M］.北京:科学出版社,2003.38-55.
[24]	曹建华,潘根兴,袁道先.不同植被凋零物对土壤有机碳淋湿的影响及岩溶意义［J］.第四纪研究,2000,20(4):359-366.
[25]	Zhang Cheng, Yan Jun, Pei Jianguo, et al. Hydrochemical variations of epikarst springs in vertical climate zones: a case study in Jinfo Mountain National Nature Reserve of China Received［J］. Environ Earth Sci.,2010, DOI 10.1007/s12665-010-0708-y.
[26]	Dorothy J V, William B W.Storm pulse chemographs of saturation index and carbon dioxide pressure: implications for shifting recharge sources during storm events in the karst aquifer at Fort Campbell,Kentucky/Tennessee, USA［J］. Hydrogeology Journal,2004,12:135-143.
[27]	刘再华,ChrisGroves,袁道先,等.水-岩-气相互作用引起的水化学动态变化研究——以桂林岩溶试验场为例［J］.水文地质工程地质,2003,(4):13-18.
[28]	Atekwana E A, Krishnamurthy R V. Seasonal variations of dissolved inorganic carbon and 13C of surface waters: application of a modified gas evolution technique［J］.Joumal of Hydrology,1998,205:265-278.
[29]	Anne-Marie A, Simon M F Sheppard, Olivier Guyomar. Use of 13C to trace origin and cycling of inorganic carbon in the Rhone river system［J］. Chemical Geology,1999，159：87-105.
[30]	刘再华.碳酸盐岩岩溶作用对大气CO2沉降的贡献［J］.中国岩溶,2000,19(4):293-300.
[31]	刘明柱,张永祥,陈鸿汉,吉林省吊水壶岩溶区碳循环研究［J］.中国岩溶,1999,18(2):129-134.
[32]	蒋忠诚.中国南方表层岩溶系统的碳循环及其生态效应［J］.第四纪地质,2000,20(4):316-324.
[33]	蒋忠诚,袁道先.表层岩溶带的岩溶动力学特征及其环境和资源意义［J］.地球学报,1999,20(3):302-308.
[34]	陈伟杰,熊康宁,任晓冬,等.岩溶地区石漠化综合治理的固碳增汇效应研究——基于基地监测数据的分析［J］.中国岩溶,2010,29(3):229-238.
[35]	袁道先,刘再华,林玉石,等.中国岩溶动力系统［M］.北京:地质出版社,2002:6-9.
[36]	徐胜友,蒋忠诚.我国岩溶作用与大气温室气体CO2源汇关系的初步估算［J］.科学通报,1997,42(9):953-956.
[37]	Jiang Z，Yuan D. CO2 source-sink in karst processes in karst areas of China［J］.Episodes,1999,37(1):19-22.
[38]	刘再华,WolfgangDreybrodt,王海静.一种由全球水循环产生的可能重要的CO2汇［J］.科学通报,2007,52(20):2418-2422.
[39]	徐胜友,何师意.碳酸盐岩土壤CO2的动态特征及其对溶蚀作用的驱动［C］//岩溶与人类生存、环境、资源和灾害.桂林:广西师范大学出版社,1998:82-90.
[40]	袁道先,刘再华,蒋忠诚,等.碳循环与岩溶地质环境［M］.北京:科学出版社,2003.38-55.
[41]	曹建华,潘根兴,袁道先.不同植被凋零物对土壤有机碳淋湿的影响及岩溶意义［J］.第四纪研究,2000,20(4):359-366.
[42]	Zhang Cheng, Yan Jun, Pei Jianguo, et al. Hydrochemical variations of epikarst springs in vertical climate zones: a case study in Jinfo Mountain National Nature Reserve of China Received［J］. Environ Earth Sci.,2010, DOI 10.1007/s12665-010-0708-y.
[43]	Dorothy J V, William B W.Storm pulse chemographs of saturation index and carbon dioxide pressure: implications for shifting recharge sources during storm events in the karst aquifer at Fort Campbell,Kentucky/Tennessee, USA［J］. Hydrogeology Journal,2004,12:135-143.
[44]	刘再华,ChrisGroves,袁道先,等.水-岩-气相互作用引起的水化学动态变化研究——以桂林岩溶试验场为例［J］.水文地质工程地质,2003,(4):13-18.
[45]	Atekwana E A, Krishnamurthy R V. Seasonal variations of dissolved inorganic carbon and 13C of surface waters: application of a modified gas evolution technique［J］.Joumal of Hydrology,1998,205:265-278.
[46]	Anne-Marie A, Simon M F Sheppard, Olivier Guyomar. Use of 13C to trace origin and cycling of inorganic carbon in the Rhone river system［J］. Chemical Geology,1999，159：87-105.
[47]	刘再华.碳酸盐岩岩溶作用对大气CO2沉降的贡献［J］.中国岩溶,2000,19(4):293-300.
[48]	刘明柱,张永祥,陈鸿汉,吉林省吊水壶岩溶区碳循环研究［J］.中国岩溶,1999,18(2):129-134.
[49]	蒋忠诚.中国南方表层岩溶系统的碳循环及其生态效应［J］.第四纪地质,2000,20(4):316-324.
[50]	蒋忠诚,袁道先.表层岩溶带的岩溶动力学特征及其环境和资源意义［J］.地球学报,1999,20(3):302-308.
[51]	陈伟杰,熊康宁,任晓冬,等.岩溶地区石漠化综合治理的固碳增汇效应研究——基于基地监测数据的分析［J］.中国岩溶,2010,29(3):229-238.
[52]	袁道先,刘再华,林玉石,等.中国岩溶动力系统［M］.北京:地质出版社,2002:6-9.
[53]	徐胜友,蒋忠诚.我国岩溶作用与大气温室气体CO2源汇关系的初步估算［J］.科学通报,1997,42(9):953-956.
[54]	Jiang Z，Yuan D. CO2 source-sink in karst processes in karst areas of China［J］.Episodes,1999,37(1):19-22.
[55]	刘再华,WolfgangDreybrodt,王海静.一种由全球水循环产生的可能重要的CO2汇［J］.科学通报,2007,52(20):2418-2422.
[56]	徐胜友,何师意.碳酸盐岩土壤CO2的动态特征及其对溶蚀作用的驱动［C］//岩溶与人类生存、环境、资源和灾害.桂林:广西师范大学出版社,1998:82-90.
[57]	袁道先,刘再华,蒋忠诚,等.碳循环与岩溶地质环境［M］.北京:科学出版社,2003.38-55.
[58]	曹建华,潘根兴,袁道先.不同植被凋零物对土壤有机碳淋湿的影响及岩溶意义［J］.第四纪研究,2000,20(4):359-366.
[59]	Zhang Cheng, Yan Jun, Pei Jianguo, et al. Hydrochemical variations of epikarst springs in vertical climate zones: a case study in Jinfo Mountain National Nature Reserve of China Received［J］. Environ Earth Sci.,2010, DOI 10.1007/s12665-010-0708-y.
[60]	Dorothy J V, William B W.Storm pulse chemographs of saturation index and carbon dioxide pressure: implications for shifting recharge sources during storm events in the karst aquifer at Fort Campbell,Kentucky/Tennessee, USA［J］. Hydrogeology Journal,2004,12:135-143.
[61]	刘再华,ChrisGroves,袁道先,等.水-岩-气相互作用引起的水化学动态变化研究——以桂林岩溶试验场为例［J］.水文地质工程地质,2003,(4):13-18.
[62]	Atekwana E A, Krishnamurthy R V. Seasonal variations of dissolved inorganic carbon and 13C of surface waters: application of a modified gas evolution technique［J］.Joumal of Hydrology,1998,205:265-278.
[63]	Anne-Marie A, Simon M F Sheppard, Olivier Guyomar. Use of 13C to trace origin and cycling of inorganic carbon in the Rhone river system［J］. Chemical Geology,1999，159：87-105.
[64]	刘再华.碳酸盐岩岩溶作用对大气CO2沉降的贡献［J］.中国岩溶,2000,19(4):293-300.
[65]	刘明柱,张永祥,陈鸿汉,吉林省吊水壶岩溶区碳循环研究［J］.中国岩溶,1999,18(2):129-134.
[66]	蒋忠诚.中国南方表层岩溶系统的碳循环及其生态效应［J］.第四纪地质,2000,20(4):316-324.
[67]	蒋忠诚,袁道先.表层岩溶带的岩溶动力学特征及其环境和资源意义［J］.地球学报,1999,20(3):302-308.
[68]	陈伟杰,熊康宁,任晓冬,等.岩溶地区石漠化综合治理的固碳增汇效应研究——基于基地监测数据的分析［J］.中国岩溶,2010,29(3):229-238.

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Influence of land covers on carbon sink of underground river：A case in the Dagouhe Basin in Guangxi

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Influence of land covers on carbon sink of underground river：A case in the Dagouhe Basin in Guangxi

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