干旱区生态环境知识资源中心(Arid): 黄土丘陵沟壑区典型人工林土壤CO

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	黄土丘陵沟壑区典型人工林土壤CO_2释放规律及其影响因子
其他题名	Soil CO2 emission and the driving factors of typical artificial woodlands in the hilly area of the Loess Plateau
	胡婵娟; 刘国华; 傅伯杰; 靳甜甜; 郭雷; 苏常红
来源期刊	生态学报
ISSN	1000-0933
出版年	2009
卷号	29 期号:9 页码:4700-4709
中文摘要	为了解黄土丘陵沟壑区人工林土壤有机碳排放特征,于2007年8月、2007年10月和2008年5月对黄土丘陵沟壑区杏树、沙棘和刺槐3种人工林下土壤CO_2释放速率及相关环境因子进行研究,探讨了半干旱地区侵蚀环境下不同植被土壤CO_2释放速率的变化规律及影响因子.杏树、沙棘和刺槐3种人工林土壤CO_2释放存在差异,日平均释放速率分别为0.83～2 61mumol·m~(-2)·s~(-1)、0.83～3.32mumol·m~(-2)·s~(-1)和0.80～3.45mumol·m~(-2)·s~(-1),刺槐和沙棘人工林土壤CO2释放速率高于杏树林,3种人工林的土壤CO2释放速率日变化及季节性变化表现一致,春季和夏季的土壤CO_2释放高于秋季.相关分析表明,土壤温度是影响土壤CO_2释放的主要因子,但在干旱的春季和夏季,土壤水分是土壤CO_2释放的主要限制因子,同时,土壤理化性质和微生物生物量也对土壤CO_2释放有显著影响.
英文摘要	To understand soil CO_2emission variation trend and driving factors of different artificial woodlands under semi-arid and erosion environment in the hilly area of the Loess Plateau, soil CO_2emission beneath three typical plantations of Prunus armeniaca, Hippophae reamnoides, and Robinia pseudoacacia were measured on August 2007 , October 2007 and May 2008. Meanwhile some environmental factors which related with soil C0_2 emission were also measured. The results showed that: (1) soil CO_2 emission for different artificial woodlands was different and the daily value was 0. 83-2. 61 mumol·m~(-2)·s~(-1),0. 83-3. 32 mumol·m~(-2) ·s~(-1), and 0. 80-3.45 mumol·m~(-2)·s~(-1) for Prunus armeniaca, Hippophae reamnoides, and Robinia pseudoacacia respectively, the soil CO_2 emission of Hippophae reamnoides and Robinia pseudoacacia were higher than that of Prunus armeniaca; (2) different artificial woodlands had similar soil CO_2emission diurnal and seasonal variation trend, soil CO_2emission was higher in spring and summer; (3) significant correlation between soil CO_2 emission and environmental factors was found after regression and correlation analysis, soil temperature was main factor from the whole year but in the spring and summer which were droughty the soil moisture was the main factor, besides, soil physiochemical characters and soil microbial biomass also could influence soil CO_2 emission.
中文关键词	黄土高原 ; 土壤CO_2释放 ; 土壤微生物 ; 人工林
英文关键词	the Loess Plateau soil CO_2emission soil microorganism artificial woodland
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3691816
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224068
作者单位	胡婵娟, 中国科学院生态环境研究中心, 城市与区域生态国家重点实验室, 北京 100085, 中国.; 刘国华, 中国科学院生态环境研究中心, 城市与区域生态国家重点实验室, 北京 100085, 中国.; 傅伯杰, 中国科学院生态环境研究中心, 城市与区域生态国家重点实验室, 北京 100085, 中国.; 靳甜甜, 中国科学院生态环境研究中心, 城市与区域生态国家重点实验室, 北京 100085, 中国.; 郭雷, 中国科学院生态环境研究中心, 城市与区域生态国家重点实验室, 北京 100085, 中国.; 苏常红, 中国科学院生态环境研究中心, 城市与区域生态国家重点实验室, 北京 100085, 中国.
推荐引用方式 GB/T 7714	胡婵娟,刘国华,傅伯杰,等. 黄土丘陵沟壑区典型人工林土壤CO_2释放规律及其影响因子[J],2009,29(9):4700-4709.
APA	胡婵娟,刘国华,傅伯杰,靳甜甜,郭雷,&苏常红.(2009).黄土丘陵沟壑区典型人工林土壤CO_2释放规律及其影响因子.生态学报,29(9),4700-4709.
MLA	胡婵娟,et al."黄土丘陵沟壑区典型人工林土壤CO_2释放规律及其影响因子".生态学报 29.9(2009):4700-4709.