喀斯特地区土壤表层CO2释放通量的影响因素Ⅰ:规律

生态学杂志 ›› 2003, Vol. ›› Issue (2): 12-15.

喀斯特地区土壤表层CO₂释放通量的影响因素Ⅰ:规律

徐海^1,2, 朴河春¹, 洪业汤¹

1. 中国科学院地球化学研究所环境地球化学国家重点实验室, 贵阳 550002;
2. 中国科学院研究生院, 北京, 100039

收稿日期:2001-08-23 修回日期:2002-01-02 出版日期:2003-02-10
基金资助:
国家自然科学基金(40072100);国家自然科学基金重点资助项目(40231007)

Factors influencing CO₂ flux of soil surface in Karst area

XU Hai^1,2, PIAO Hechun¹, HONG Yetang¹

1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Received:2001-08-23 Revised:2002-01-02 Online:2003-02-10

摘要/Abstract

摘要： 测定了贵州喀斯特地区土壤表层CO₂释放通量,同时还测定了土壤微生物生物量碳以及土壤可溶性有机质含量和土壤湿度.研究表明,贵州喀斯特地区全年土壤表层CO₂释放通量与温度变化呈正相关关系,与土壤微生物生物量碳呈负相关关系;当温度＞20℃时,土壤表层CO₂释放通量与土壤湿度呈正相关,与土壤可溶性有机碳含量呈负相关.

关键词: 二氯喹啉酸, 水稻田, 好氧微生物, 厌氧微生物, 种群影响

Abstract: Soil surface CO₂ flux was measured in Karst area in Guiyang,South Western China.Other soil parameters such as soil microbial biomass carbon,soil soluble organic carbon,and soil moisture were determined at the same time.Results revealed significant positive correlations between soil surface CO₂ flux and soil temperature,as well as significant negative correlations with soil microbial biomass carbon.Soil surface CO₂ flux is positively correlated with soil moisture and negatively correlated with soil soluble organic carbon,respectively.

Key words: Quinclorac, Flooded paddy soil, Microbic populations, Aerobic heterotrophic bacteria, Anaerobic bacteria

中图分类号:

X144

徐海, 朴河春, 洪业汤. 喀斯特地区土壤表层CO₂释放通量的影响因素Ⅰ:规律[J]. 生态学杂志, 2003, (2): 12-15.

XU Hai, PIAO Hechun, HONG Yetang. Factors influencing CO₂ flux of soil surface in Karst area[J]. cje, 2003, (2): 12-15.

喀斯特地区土壤表层CO₂释放通量的影响因素Ⅰ:规律

Factors influencing CO₂ flux of soil surface in Karst area

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