干旱区生态环境知识资源中心(Arid): 黔中喀斯特石漠化地区土壤温室气体浓度的时空分布特征

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	黔中喀斯特石漠化地区土壤温室气体浓度的时空分布特征
其他题名	Temporal and Spatial Variations of Greenhouse Gases Concentrations in Soils in Karst Stone Desertification Areas in Central Part of Guizhou Province
	刘芳 1; 刘丛强 1; 王仕禄 1; 吕迎春 2
ISSN	0250-3301
出版年	2009
卷号	30 期号:11 页码:3136-3141
中文摘要	2006～2007年对喀斯特石漠化地区土壤剖面中CO_2、N_2O和CH_4的浓度分布进行观测.结果表明,土壤剖面中CO_2、N_2O和CH_4浓度分别介于530.2～31512.6、0.27～0.67和0.1～3.5muL·L~(-1).总体上,自地表向下,CO_2和N_2O浓度逐渐增大,CH_4浓度则为逐渐减小,但在阴冷潮湿的10、11月和1月,15cm以下土层中CO_2和N_2O浓度随着深度的增加逐渐减小,CH_4浓度则明显增加.土壤温度、水分同时影响剖面中CO_2、N_2O和CH_4的时空分布,但影响效应以及作用的土层深度有所不同.相关分析结果表明,土壤中CO_2和N_2O浓度的时空分布显著正相关(r为0.780～0-894,p<0.05～0.01),相关关系受环境因子的影响;CO_2和CH_4的时空分布则呈显著负相关关系(r=330,p<0.01);N_2O和CH_4的空间分布为互逆关系,但只在土壤水分较大月份达到显著水平(r为-0.829～-0.956,p<0.05～0.01).
英文摘要	Concentrations of CO_2, N_2O and CH_4 of soil profile; n Karst Stone Desertification Areas were measured monthly from June of 2006 to May of 2007. The results indicated that the concentrations of CO_2,N_2O and CH_4 varied from 530.2 to 31512.6, 0.27 to 0.67 and 0.1 to 3.5 muL·L~(-1) .On the whole, with the increase of soil depth, the concentrations of CO_2 and N_2O increased, while CH_4 decreased. However, in the cold and wet October, November and January, the concentrations of CO_2 and N_2O decreased with the depth below 15 cm. In contrast, CH_4 had the inverse trend. Soil temperature and moisture were the main factors which had impacts on the temporal and spatial variations of CO_2 , N_2O and CH_4 concentrations in soil profile, but the influence impacts were different. The correlation analysis showed that there was positive correlation between CO_2 and N_2O(r 0.780-0.894, p < 0.05-0.01), while correlation degree was controlled by environmental factors in different months.CH_4 concentrations in soil had significantly negative correlation with CO_2 concentrations( r = 330, p < 0.01) , but correlated with N_2O concentrations just in moisture months( r - 0.829- - 0.956, p < 0.05-0.01) .
中文关键词	喀斯特 ; 土壤 ; 温室气体浓度 ; 时空变化 ; 黔中地区
英文关键词	Karst soil greenhouse gas concentration temporal and spatial variation central part of Guizhou Province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3793674
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223844
作者单位	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, 贵州 550002, 中国; 2.中国科学院烟台海岸带可持续发展研究所, 烟台, 山东 264003, 中国
推荐引用方式 GB/T 7714	刘芳,刘丛强,王仕禄,等. 黔中喀斯特石漠化地区土壤温室气体浓度的时空分布特征[J],2009,30(11):3136-3141.
APA	刘芳,刘丛强,王仕禄,&吕迎春.(2009).黔中喀斯特石漠化地区土壤温室气体浓度的时空分布特征.,30(11),3136-3141.
MLA	刘芳,et al."黔中喀斯特石漠化地区土壤温室气体浓度的时空分布特征".30.11(2009):3136-3141.