干旱区生态环境知识资源中心(Arid): 青海湖小冰期降水量估算

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	青海湖小冰期降水量估算
其他题名	Calculation of Precipitation of Qinghai Lake During Little Ice Age Based on GIS
	杨萍 1; 王乃昂2 ; 黄银洲 2; 董春雨 2; 朵海瑞 3; 鄂崇毅 1
来源期刊	地理科学
ISSN	1000-0690
出版年	2013
卷号	33 期号:5 页码:609-612
中文摘要	通过对处于构造活动相对稳定的青海湖湖滨地带湖岸堤的野外考察,获取了海晏湾和哈达湾两处湖岸堤的14C年龄;在地理信息系统的支持下,得到这两处岸堤的海拔高度和湖泊面积,应用水热平衡模型,估算了当时流域的降水量。200 a B.P.的青海湖湖岸堤海拔高度为3 201 m,湖泊面积为4 870 km~2,流域降水量为416 mm,表明青海湖该时段小冰期气候具有比现在湿润的特征,同时,降水量估算的结果也支持了青海湖流域气候受亚洲西南季风影响的观点。
英文摘要	Inland lakes are recorders of the past climate change and indicators of the modern environmental change. Qinghai Lake, the largest inland salt lake in China, locats in the northeast of Qinghai-Tibet Plateau and semi-arid region where is under the influence of westerly and Asia Monsoon, is sensitive to climate change. Evidences such as lake shorelines changing can be used to study the fluctuation of lake level in this basin. These can reflect water mass balance of a basin and are closely related with climate parameters of precipitation, temperature, evaporation, humidity, wind, etc. A lake shoreline during the Little Ice Age is obtained by field investigation and geomorphologic analysis and its age is obtained by~(14)C dating and precipitation during this time is calculated using hydrological and energy budget model and the methodology of meteorology, hydrology and other software such as GIS. The 14C dating of the bird bones at 3 201 m in Haiyanwan is 200 a B.P. and the ~(14)C dating of the deadwood at 3 201m in a lake shoreline in Hadawan is 195 a B.P. So the area of Qinghai Lake and precipitation can be estimated by the proof coming from the level and age of the lake shoreline in Haiyanwan and Hadawan based on GIS. The lake level and area are 3 201 m and 4 870 km~2 in 200 a B.P. respectively, which are 8 m higher and 636 km~2 bigger than those of today, and the precipitation in that time is 416 mm, which is 9% higher than that of today. This result is consistent with the opinion that the climate during Little Ice Age in Qinghai Lake is humid, which has been obtained by relative research and supports the viewpoint that climate in Qinghai Lake may have been influenced by southwest Asian monsoon, which is stronger but the eastern Asian monsoon is weaker during the middle and late period of the Little Ice Age.
中文关键词	青海湖 ; 水热平衡模型 ; 小冰期 ; 降水量
英文关键词	Qinghai Lake hydrological and energy budget model Little Ice Age precipitation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4843607
来源机构	兰州大学 ; 北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229324
作者单位	1.青海师范大学生命与地理科学学院, 西宁, 青海 810008, 中国; 2.兰州大学资源环境学院, 兰州, 甘肃 730000, 中国; 3.北京林业大学自然保护区学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	杨萍,王乃昂,黄银洲,等. 青海湖小冰期降水量估算[J]. 兰州大学, 北京林业大学,2013,33(5):609-612.
APA	杨萍,王乃昂,黄银洲,董春雨,朵海瑞,&鄂崇毅.(2013).青海湖小冰期降水量估算.地理科学,33(5),609-612.
MLA	杨萍,et al."青海湖小冰期降水量估算".地理科学 33.5(2013):609-612.