学术
艾比湖盐尘对周边地区土壤盐分及景观变化的影响
吉力力·阿不都外力[1] 徐俊荣[1] 穆桂金[1] 徐曼[1] M．V．Gabchenko[2]
[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]俄罗斯农业科学院V．V．Dokuchaev土壤研究所,莫斯科119017,俄罗斯
摘 要:
通过对准噶尔盆地西部艾比湖地区盐尘的扩散和堆积进行观测和取样分析，鉴别出粉尘中可溶盐的化学成分、pH和盐尘堆积强度，分析研究了盐尘的形成、分布特征和灾害强度以及盐尘暴与温度、降水、风等气候因子之间的相关关系．结果表明：近50a来艾比湖的沉积环境总体是比较稳定的，但由于气候波动与人类活动引起艾比湖水位、水域面积曾发生较明显的变化，并产生了盐尘暴的发生、湖泊和土壤盐度以及湖周景观的变化．根据艾比湖周边盐漠区盐尘的时空分布规律、活动特点和危害强度分析，盐尘对准噶尔盆地西部土壤盐分及景观变化的影响强度范围和影响程度划分为3级区．[著者文摘]
文章出处:
《冰川冻土》-2007年29卷6期 -928-939页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-0240（2007）06-0928-12
Effect of Soil Dust from Ebinur Lake on Soil Salts and Landscape of Surrounding Regions
JILILI Abuduwaili , XU Jun-rong , MU Gui-jin , XU Man , M. V. GABCHENKO （1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Science, Uriimqi Xinjiang 830011, China 2. V. V. Dokuchaev Soil Science Institute, Russian Academy of Agricultural Sciences, Moscow 119017, Russia）
Abstract:
Based on yearly meteorological observational data from weather stations around Ebinur Lake,dispersion and deposits of salt dust in west Junggar Basin were observed and sampled to analyze. Chemical components and pH value of soluble salt, together with deposit intensity of salt dust, were identified. The formation and distribution characteristics of salt dust, and disaster intensity of salt dust storm were studied. The correlative relationships between salt dust and climate factors, such as temperature, precipitation, wind, were also studied. The result shows that in the lat-est 50 years, the overall deposit environment of Ebinur Lake is relative stable. However, water level and water area of Ebinur Lake has changed significantly owing to climate fluctuation and human activities, resulting in salt dust storm and change in lake salt, soil salt and landscape around the lake. According to the analyses of spatial distribution tendency, active characteristics and harm intensity of the salt dust in salt desert around Ebinur Lake, the range of intensity and degree of soil salt and landscape change due to salt dust are divided into three grades.[著者文摘]
Key words:
Ebinur Lake; salt dust; soil salt; landscape
基金资助:
国家自然科学基金项目（40671170）;中国科学院新疆生态与地理研究所绿洲学者“博士人才”培养计划项目（20052108）;中国科学院知识创新工程重要方向项目（KZCX3-SW-355;KZCX2-YW-307）;教育部留学回国人员科研启动基金项目资助
更多>>免费文章
cqvip.com