干旱区生态环境知识资源中心(Arid): 半干旱采煤塌陷区植被土壤碳循环及源、汇功能转换特征

Arid

	半干旱采煤塌陷区植被土壤碳循环及源、汇功能转换特征
其他题名	The Characteristics of Soil and Vegetation Carbon Cycle and Conversion of Carbon Source and Sink in Mining Subsidence Area of the Semi-arid Region
	王琦; 叶瑶; 韩煜; 史娜娜; 全占军
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2016
卷号	30 期号:4 页码:166-172,205
中文摘要	以大柳塔矿区采煤塌陷前后不同草地为研究对象,以区域实测数据为基础,分析了080 cm土层土壤有机碳储量变化以及春季、夏季、冬季3个季节不同植被部位以及土壤碳循环差异及碳源/汇功能转换特征。结果表明:(1)对照区和沉陷区不同季节土壤碳储量都具有明显的垂直分布特征,采煤沉陷造成春季草地生态系统土壤碳储量显著下降(P=0.001),随季节变化呈现出冬季>夏季>春季的趋势;(2)采煤沉陷造成草地生态系统春季地上立枯和枯落物碳储量显著上升(P=0.000,P=0.004),冬季枯落物和根系碳储量下降(P=0.016,P=0.015),沉陷区不同植被部位碳储量随季节变化均呈现出春季>夏季>冬季的趋势;(3)相较对照区,沉陷区植被碳储量随季节变化均表现为碳源过程,土壤碳储量随季节变化由碳源碳汇过程转变为碳汇过程;(4)相关分析显示,对照区地上新鲜植被碳储量和立枯碳储量呈现出显著的负相关性(P<0.05),而沉陷区地上新鲜植被碳储量和立枯碳储量呈现出极显著的正相关性(P<0.01)。
英文摘要	In this paper,the different grasslands in the mining subsidence area of Daliuta coal mining region were studied.Based on the measured data of this area,soil carbon storage of 080 cm soil layer and characteristics of carbon source and sink in soil and vegetation in spring,summer and winter were analyzed.The results showed that:(1)The soil carbon storage had vertical distribution characteristics in different seasons in subsided area and non-subsided area,and mining subsidence significantly decreased soil carbon stock in spring(P=0.001),which listed in the order of winter>summer>spring;(2)Carbon storage in sanding dead litter and litter were increased significantly in spring(P=0.000,P=0.004),while carbon storage in litter and roots were decreased in winter(P=0.016,P=0.015),and carbon storage in different parts of plants in subsided area listed in the order spring>summer>winter;(3)Compared to the non-subsided area, vegetation carbon storage appeared the carbon source process with the change of seasons,while soil carbon storage conversed from carbon source-carbon sink to carbon sink process with the change of seasons;(4)Correlation analysis indicated that the carbon storage of fresh vegetation and sanding dead litter in non-subsided area were negatively correlated(P<0.05),and the carbon storage of fresh vegetation and sanding dead litter in subsided area were positively correlated(P<0.01).
中文关键词	采煤塌陷 ; 碳储量 ; 碳源/汇转换 ; 半干旱区
英文关键词	mining subsidence carbon storage carbon source and sink conversion semi-arid areas
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY ; ENVIRONMENTAL SCIENCES
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
CSCD记录号	CSCD:5776205
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234978
作者单位	中国环境科学研究院, 北京 100012, 中国
推荐引用方式 GB/T 7714	王琦,叶瑶,韩煜,等. 半干旱采煤塌陷区植被土壤碳循环及源、汇功能转换特征[J],2016,30(4):166-172,205.
APA	王琦,叶瑶,韩煜,史娜娜,&全占军.(2016).半干旱采煤塌陷区植被土壤碳循环及源、汇功能转换特征.水土保持学报,30(4),166-172,205.
MLA	王琦,et al."半干旱采煤塌陷区植被土壤碳循环及源、汇功能转换特征".水土保持学报 30.4(2016):166-172,205.