期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
银川平原全新世地层氧化物特征在气候上的意义 被引量:1
1
作者 耿侃 陈育峰 《干旱区资源与环境》 CSCD 1989年第3期78-84,共7页
本文在对银川平原水洞沟和插旗口全新世地层剖面全量氧化物因子分析的基础上,初步探讨了氧化物剖面分布特征和规律,并选用Q型因子分析的f_1/f2比值作为判别相对干燥或湿润的指标,具有区域对比意义。认为银川平原全新世以来始终处于干旱... 本文在对银川平原水洞沟和插旗口全新世地层剖面全量氧化物因子分析的基础上,初步探讨了氧化物剖面分布特征和规律,并选用Q型因子分析的f_1/f2比值作为判别相对干燥或湿润的指标,具有区域对比意义。认为银川平原全新世以来始终处于干旱气候环境中,其表生地球化学过程明显受水分条件制约和影响,在气候演化上表现出干热和相对冷湿的性质。 展开更多
关键词 全新世 银川平原 特征关系 因子分析 表生 氧化物含量 水洞沟 剖面分布 水分条件 降水量变率
下载PDF
Climate change and glacier area variations in China during the past half century 被引量:10
2
作者 TIAN Hong-zhen YANG Tai-bao +2 位作者 LV Hui LI Cheng-xiu HE Ying-bin 《Journal of Mountain Science》 SCIE CSCD 2016年第8期1345-1357,共13页
Glacier variations in the Tibetan Plateau and surrounding mountain ranges in China affect the livelihood of over one billion people who depend on water from the Yellow, Yangtze, Brahmaputra, Ganges and Indus rivers or... Glacier variations in the Tibetan Plateau and surrounding mountain ranges in China affect the livelihood of over one billion people who depend on water from the Yellow, Yangtze, Brahmaputra, Ganges and Indus rivers originating in these areas. Based on the results of the present study and published literature, we found that the glaciers shrank :5.7% in area from 1963 to 20:0 with an annual area change of -0.33%. The shrinkage generally decreased from peripheral mountain ranges to the interior of Tibet. The linear trends of annual air temperature and precipitation at 147 stations were 0.36℃(10a)^-1 and 8.96 mm (10a)^-1 respectively from 1961 to 2010. The shrinkage of glaciers was well correlated with the rising temperature and the spatial patterns of the shrinkage were influenced by other factors superimposed on the rising temperature such as glacier size, type, elevation, debris cover and precipitation. 展开更多
关键词 Glacier area Climate change AIR
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部