汉江安康段及其流域水资源调查报告

为进一步合理开发利用汉江水资源提供科学依据,收集安康市自1962年以来所积累的各类水质检验数据,按年代整理对比分析并根据国家《生活饮用水卫生标准》和《地表水环境质量标准》进行评价。结果表明：安康市水资源丰富,地表径流密集,平均河网密度1.43km/km2,年径流量10.657×109m3（人均约3964m3）。历年来各项指标的检验结果显示当地各类水源水质良好,硬度为60～290mg/L,矿化度175～250mg/L,整个流域极少污染,是难得的生活饮用水源地。安康市地处秦巴山区,工业基础薄弱、交通旅游产业滞后,经济总量小而环境容量大,水体广博、自净力强,困扰大都市的污染问题在这里尚不十分突出,目前人为污染对水源的影响还极其轻微,只要注意加以保护可以作为＂南水北调＂工程的水源地。

Water Resources Investigation Report of Ankang in Hangang

Objective to understand the changes of sanitary quality of water source of Ankang section of Hangang rand its valley in recent 40 years, and to Provide scientific basis for the development of water resource. The various kinds of data on water quality of Ankang city were collected Since 1962, and were sorted, analyzed and evaluated on the basis of sanitary standard for drinking water and standard for environmental quality of surface water. Water source is plentiful in Ankang city, the waters surface branches are concentrated. Average density is 1.43 km/km2, annual rate of flow is 10.657×109m3. All kinds of water quality is well, hardness is 60 ～ 290mg/L（CaCO3）, mineral content is 175 ～ 250mg/ L. It is good for living drinking water source because all water are seldom polluted. Ankang city is situated Qinba mountain area. Its industry is weak, industrials of traffic and tourism are lag behind, but its water source is plentiful. For the present, the pollution of water source caused by human activities is slight , Ankang section of Hangang could be selected as an ideal water source for south water to north engineering under the effective environmental protection on water resource.