贵州大鲵原生境的水质指标测定  

Analysis on Water Quality from Original Habitat of Giant Salamander

作　　者：吴学祥[1] 董然然[1] 唐黎[1] 聂福顺 

机构地区：[1]贵州大学动物科学学院,贵州贵阳550025 [2]贵州省平塘县农村工作局,贵州平塘558300

出　　处：《贵州农业科学》2016年第12期111-113,共3页Guizhou Agricultural Sciences

基　　金：贵州省农业科技攻关项目"喀斯特山区大鲵模拟生境繁育配套技术研究"[黔科合NY字(2010)3053];贵州省教育厅自然科学研究项目"大鲵模拟生境繁殖工程技术研究"[黔教科(2011)035];"提高大鲵脱鳃期养殖成活率的配套技术研究"[黔教科(2012)]

摘　　要：为大鲵的养殖及其水源选择提供参考,对贵州省黔南州斗蓬山大鲵原繁殖生境的水样进行水质测定分析。结果表明:贵州大鲵原生境水样呈弱碱性(pH 7.21),总硬度(以CaCO_3计)为134.38mg/L、总碱量(以CaCO_3计)为104.99mg/L,Ca^(2+)、Mg^(2+)分别为42.96mg/L和6.58mg/L,Cl^-、SO_4^(2-)和H_2PO_4^-含量分别为0.90mg/L、29.43mg/L和0.00mg/L,NH_4^+为0.00mg/L。依据GB 8537-2008饮用天然矿泉水国家标准,贵州大鲵原生境水样的限量指标As、Cd、Pb、溴酸盐(以Br-计)的含量均为0.000mg/L,Hg含量<0.000 01mg/L,硝酸盐(以NO_3^-计)、氟化物(以F-计)、化学耗氧量(以O_2计)分别为3.52mg/L、0.12mg/L和0.00mg/L,均达到国家指标;界限指标Zn^(2+)、H_2SiO_3、溶解性总固体分别为0.002 mg/L、6.61mg/L和212.66mg/L,低于国家指标;污染指标亚硝酸盐(以NO_2^-计)含量为0.017mg/L,色度≤5°、浊度为0.06°、煮沸前后无异臭异味、无肉眼可见异物。贵州省黔南州斗蓬山大鲵原繁殖生境的水样优于饮用天然矿泉水国家标准。In order to provide references for giant salamander cultivation and water source selection, the water quality was analyzed from the Doupengshan original habitat of giant salamander in Qiannan Prefecture of Guizhou Province. Results：Chroma of water sample was less than 5 with turbidity of 0.06. The water was of alkalescence （pH = 7. 21）,the dissolved solids of 212. 66 mg/L, total hardness of 134.38 mg/L and total alkali content （calculated by calcium carbonate） of 104.99 mg/L. Calcium ion and magnesium ions were respectively 42. 96 mg/L and 6. 58 mg/L in water samples. The contents of Cl^-, SO4^2- , H2PO4^- and NH4^＋ in water samples were respectively 0.90 mg/L, 29.43 mg/L, 0.00 mg/L, and 0.00 mg/L respectively. As, Cd, Pb and Brwere all 0.000 mg/L, Hg was〈0.00001 mg/L, NO3^-, F^- and O2 were respectively 3.52 mg/L, 0.12 mg/L and 0.00 mg/L, which were all lower than the national limits according to GB 8537-2008; Zn^2＋ , H2 SiO3 and total dissolved solids were separately 0. 002 mg/L, 6.61 mg/L and 212. 66 mg/L, lower than the national limits; NO2 content in water samples was 0. 017mg/L, before and after boiled there is no smelly taste and no visible particles observed. All above indicated that the water quality from Doupengshan original habitat of giant salamander in Qiannan Prefecture of Guizhou Province was better than national standard of natural mineral water for drinking.

关 键 词：大鲵 原生境 水质 

分 类 号：S912[农业科学—水产科学]