干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠南缘红柳沙包有机质碳氮含量与气候环境变化

Arid

	塔克拉玛干沙漠南缘红柳沙包有机质碳氮含量与气候环境变化
其他题名	C and N content in organic matter of Tamarix cone and climatic and environmental change in southern region of Taklimakan desert
	赵元杰 1; 车高红 1; 刘辉 1; 曾佳 1; 夏训诚 2
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2016
卷号	39 期号:3 页码:461-467
中文摘要	干旱区红柳沙包沉积纹层具有计年和气候环境指示意义。以塔克拉玛干沙漠南缘策勒和安迪尔地区的红柳沙包为研究对象,通过TOC、TN和C/N分析,探讨气候环境变化。研究表明:红柳落叶C/N变化受到TN和TOC共同影响,但TN是主要因素。虽然受地理位置和人类活动影响,区域间的气候环境变化存在差异,但整个塔克拉玛干沙漠南缘地区,近400多年来,随大气CO_2浓度增加,气温持续升高,气候经历了1600-1690年(冷湿)、1691-1770年(冷干偏暖)、1771-1900年 (冷湿偏暖)、1901-1990年(暖干)和1991-2010年(暖湿)等5个阶段。
英文摘要	For a long time,as a result of the limitation of dating and environment information carriers,the climatic change research in the southern region of Taklimakan Desert mainly focused on the modern stage with the meteorological apparatus measurement. Because Tamarix cone sedimentary veins in arid zones have the significance for dating and storing climatic and environmental information in recent hundreds of years,this paper took Tamarix cone profiles in Damagou township(37.09°N,81.08°E),Andier ancient city(37.83°N,83.71°E)and Andier meadow(37.72°N,83.82°E)located in the southern region of Taklimakan Desert as the research objects. Since there were not perfectly clear and continuous sedimentary veins within the Tamarix cones there,the samples were collected according to the yearly sedimentary veins for the clear and continuous sedimentary layers, and according to certain thickness for the unclear and discontinuous ones. By comprehensively using some dating methods such as ~(210)Pb,~(137)Cs,~(14)C and so on,the constructed age sequences of them turned out to be 1792-2010, 1600-2010 and 1590-2010,respectively. Based on TOC,TN and C/N analysis,this paper also studied the regional climatic and environmental change. The results show that at Damagou township the maximum value,minimum value and mean value of TOC and TN are 49.054%,26.062%,41.306%,and 2.423%,0.455%,0.930%,respectively; at Andier ancient city,they are 47.272%,21.218%,37.985%,and 3.767%,0.634%,1.848%,respectively; and at Andier meadow,they are 50.926%,28.785%,37.033%,and 2.198%,0.663%,1.477%,respectively. The change of C/N within Tamarix cone sedimentary veins are jointly affected by TN and TOC,and TN is one of the main factors. Under the influence of geographical location and human factors,there are differences in climatic and environmental change among different regions,but throughout the southern region of Taklimakan Desert,the temperature has been rising continuously with the increase of atmospheric CO_2 concentration,and the precipitation has been increasing since 1990. The climate has experienced 5 stages including 1600-1690(cool-wet), 1691-1900(cool-dry),1901-1990(warm-dry)and 1991-2010(warm-wet)in recent about 500 years.
中文关键词	碳氮含量 ; 气候环境 ; 红柳沙包 ; 塔克拉玛干沙漠南缘
英文关键词	C and N content climate and environment Tamarix cone southern region of Taklimakan Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:5731269
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234243
作者单位	1.河北师范大学资源与环境科学学院, 河北省环境演变与生态建设实验室, 石家庄, 河北 050024, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	赵元杰,车高红,刘辉,等. 塔克拉玛干沙漠南缘红柳沙包有机质碳氮含量与气候环境变化[J]. 中国科学院新疆生态与地理研究所,2016,39(3):461-467.
APA	赵元杰,车高红,刘辉,曾佳,&夏训诚.(2016).塔克拉玛干沙漠南缘红柳沙包有机质碳氮含量与气候环境变化.干旱区地理,39(3),461-467.
MLA	赵元杰,et al."塔克拉玛干沙漠南缘红柳沙包有机质碳氮含量与气候环境变化".干旱区地理 39.3(2016):461-467.