干旱区生态环境知识资源中心(Arid): 我国典型季风海洋型冰川积累区冰雪剖面的环境记录

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	我国典型季风海洋型冰川积累区冰雪剖面的环境记录
其他题名	Environmental Records from a Shallow Profile, Baishui No.1 Glacier, Mt. Yulong
	李宗省; 何元庆; 和献中; 贾文雄; 王世金; 常丽; 朱国锋; 辛惠娟
ISSN	1672-9250
出版年	2009
卷号	37 期号:4 页码:360-365
中文摘要	运用多种方法,对白水1号冰川积累区冰雪剖面的主要阴、阳离子和delta~(18)O的环境意义分析表明.受强烈淋溶作用影响,离子和delta~(18)O的季节变化不明显,剖面离子浓度显著低于雪坑,离子流失量较大.NH_4~+年际变化最为显著,与丽江降水表现出相同的变化趋势,Mg~(2+)和Ca~(2+)浓度与冰雪剖面净积累量呈反向变化.分析表明,阴离子主要是湿沉降产物,阳离子主要是干沉降产物.该剖面所反映的13年delta~(18)O比率变化介于-11.8～-14.6.冰雪剖面中delta~(18)O与西南季风指教、冰雪剖面积累量、丽江降水和丽江气温呈反向变化,表现出显著的"降水量效应".
英文摘要	Samples were colleted from the accumulation area, Baishui No. 1 glacier in May, 2004. The method of sea-salt ions tracer, correlation analysis and trend analysis were used in this research in order to confirm the environmental records. It is indicated that the seasonal variation of ions and delta~(18)O is very weak owing to ionic eluviation. The inter-annual variation of NH_4~+concentrations is apparent, and it is similar to the precipitation (from May to October) in Lijiang City. The variation trend is inverse between net accumulation and concentrations of Mg~(2+) and Ca~(2+). The main ionic non-marine source is local dust, and the secondary source is dust from central Asian arid regions carried by westerly circulation and the southeastern plateau bear areas with the Qinghai-Tibet plateau winter monsoon. In addition, the import of pollutants with monsoonal circulation from industrial areas has made some contribution to anions concentration in the study area. The values of delta~(18)O vary from-11.8 to -14.6, whose precipitation effect is obvious. It is important that the shallow firn profile can record environmental information in China’s monsoonal temperate glacier region.
中文关键词	玉龙雪山 ; 白水1号冰川 ; 环境记录
英文关键词	delta~(18)O Mr. Yulong Baishui glacier No. 1 delta~(18)O environmental records
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES ; GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Environmental Sciences & Ecology ; Geology
CSCD记录号	CSCD:3787070
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223426
作者单位	中国科学院/玉龙雪山冰川与环境观测研究站, 冰冻圈科学国家重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	李宗省,何元庆,和献中,等. 我国典型季风海洋型冰川积累区冰雪剖面的环境记录[J],2009,37(4):360-365.
APA	李宗省.,何元庆.,和献中.,贾文雄.,王世金.,...&辛惠娟.(2009).我国典型季风海洋型冰川积累区冰雪剖面的环境记录.,37(4),360-365.
MLA	李宗省,et al."我国典型季风海洋型冰川积累区冰雪剖面的环境记录".37.4(2009):360-365.