Chemical composition of rainwater and floodwaters in the Negev Desert, Israel
Chemical composition of rainwater and floodwaters in the Negev Desert, Israel
复制标题
以色列内盖夫沙漠雨水和洪水的化学成分
DOI：
10.1016/0022-1694(83)90103-8
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发表时间：
1983
影响因子：
6.4
通讯作者：
J. Rutledge
中科院分区：
文献类型：
--
作者：
R. Nativ;A. Issar;J. Rutledge
通过散布在以色列内盖夫沙漠两个流域区域的自密封采样器对雨水和洪水进行了采样。采样是在 1978 年至 1981 年冬季进行的。分析水中的以下离子：Ca2+、Mg2+、Na+、K+、HCO−3、Cl− 和 SO2−4。对雨水和洪水的化学类型以及从盆地沉淀和排出的盐总量进行了调查。内盖夫雨水的化学特性与以色列北部的雨水相似，但离子的绝对量较小。研究发现流入盆地的盐分总量大于洪水排出的盐分数量。人们发现，洪水的化学成分是由流域的岩性决定的，而不是由产生洪水的雨水的初始化学特征决定的。
Rain and floodwater were sampled by self-sealing samplers scattered over the area of two drainage basins in the Negev Desert of Israel. The sampling was carried out during the winters of 1978–1981. Water was analyzed for the following ions: Ca2+, Mg2+, Na+, K+, HCO−3, Cl−and SO2−4. The chemical type of the rain and floodwater as well as the total quantities of salts precipitated and drained out from the basins were investigated. The chemical characteristics of the rainwater falling in the Negev resemble those of rainwater in northern Israel, but the absolute quantities of ions are smaller. The total quantities of salts introduced into the basin were found to be larger than the quantities of salts drained out by the floods. The chemical composition of the floodwater was found to be governed by the lithology of the drainage basin and not by the initial chemical characteristics of the rain from which it was derived.