| 新疆博斯腾湖水盐变化及其影响因素探讨 |
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| 引用本文： | 李卫红,袁磊.新疆博斯腾湖水盐变化及其影响因素探讨[J].湖泊科学,2002,14(3):223-227. |
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| 作者姓名： | 李卫红 袁磊 |
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| 作者单位： | 1. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011
2. 新疆环境监测中心站,乌鲁木齐,830011 |
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| 基金项目： | 国家自然科学基金(90102007)和中国科学院知识创新项目(KZCX1-08-03)资助项目. |
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| 摘 要： | 在博斯腾湖水文和水化学实测资料的基础上，研究了博斯腾湖水盐的年际和年内变化。近40年来，水质年际变化经历了好→中→差→中的过程；年内变化与区内最大补给源开都河不同季节河流来水量变化以及湖周农田排盐水等因素直接相关，而湖水的矿化度与水位变化呈负相关。对湖水主要离子含量变化特点和湖区矿化度变化规律的研究表明，湖水补给源及湖水循环状况是影响湖水水质变化的主要因素。
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| 关 键 词： | 新疆 博斯腾湖 水盐变化 水质 来水量 矿化度 变化规律 |
| 收稿时间： | 5/1/2001 12:00:00 AM |
| 修稿时间： | 2001年5月1日 |
On the Water-Salt Change of Bosten Lake in Xinjiang |
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| LI Weihong and YUAN Lei.On the Water-Salt Change of Bosten Lake in Xinjiang[J].Journal of Lake Science,2002,14(3):223-227. |
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| Authors: | LI Weihong and YUAN Lei |
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| Institution: | LI Weihong 1 YUAN Lei 2 |
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| Abstract: | Bosten Lake isone of the biggest freshwater lakes in China. On the basis of in situ hydrological and hydro chemical data of Bosten Lake, this paper discusses the annual and seasonal change of water salt of Bosten Lake in detail. During the past 40 years or so, The lake water has undergone an annual changing process and the seasonal change is closely related to the water discharge coming from Kaidu River that is the largest water source supplying for the Bosten Lake. The farmland drainage contains salt around the Lake. The change of mineralized degree in the lake is negatively correlated with the water level in the pasr 40 years,i.e. when the water level is lower, the lake mineralized degree is higher. With the increase of ion content, Ca 2+ and Mg 2+ increase slowly, while the contents of SO 4 2- , Cl - and K ++Na + show markable increase. The descending ion content order is SO 4 2- >CI ->HCO 3 ->K ++Na +>Mg 2+ >Ca 2+ >CO 3 2- , and its proportion may differ with the sampling positions in the lake. The hydro chemical type is SO 4 Na . The lake water sources and lake water circulation are the main factors that have impacts on the change of lake water quality. The measurement for improving Bosten lake water eco environment are suggested as follows: farmland irrigation quota should be reduced, river water amount flowing into Bosten Lake be promised, the groundwater resources utilization in the Yanji Basin be sped up, and the lake water circulation intensity strengthened. |
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| Keywords: | Bosten Lake water level change mineralized degree |
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