本文選題：地下水 + 污染�。� 參考：《農(nóng)業(yè)工程學(xué)報(bào)》2016年05期

【摘要】：為研究新疆焉耆盆地平原區(qū)地下水污染現(xiàn)狀,2014年在焉耆盆地平原區(qū)設(shè)置42個(gè)采樣點(diǎn),采集42組地下水樣本,測(cè)定樣本中溶解性總固體(total dissolved solids,TDS)及陰陽(yáng)離子含量,并利用SPSS軟件及MAPGIS地理信息系統(tǒng)分析其時(shí)空動(dòng)態(tài)。結(jié)果表明,1999年與2014年地下水TDS總體存在顯著差異性;對(duì)地下水中TDS與宏量陰、陽(yáng)離子組分及p H值之間的關(guān)系進(jìn)行分析,地下水TDS與SO42-、Cl-、K++Na+、Mg2+、Ca2+具有顯著相關(guān),相關(guān)系數(shù)在0.717~0.964之間,與宏量陰離子SO42-、Cl-相關(guān)性明顯大于陽(yáng)離子,相關(guān)系數(shù)分別為0.963及0.964。在時(shí)間尺度上,1983-2014年地下水TDS均值整體呈現(xiàn)先升高再有所降低而后又升高再降低的趨勢(shì),均值由1983年305.0 mg/L上升至1999年1773.1 mg/L后又降低至2014年589.44 mg/L;在空間尺度上,1999-2014年地下水TDS1 g/L區(qū)域面積變化呈增加的趨勢(shì),面積由1999年2 011.7 km2增加至2014年2 229.3 km2,與1999-2014年地下水TDS均值呈下降趨勢(shì)相對(duì)應(yīng)。研究區(qū)地下水TDS變化主要原因有2方面:一是地下水水位由2000年4.98 m下降至2014年7.34 m,地下水水位下降促使土壤及其下層沉積物中的鈣、鎂易溶鹽、難溶鹽及交換性鈣鎂由固相向水中轉(zhuǎn)移使更多的鈣鎂離子進(jìn)入地下水中,使地下水TDS增高,同時(shí)地下水位下降導(dǎo)致水中溶質(zhì)濃縮也會(huì)造成TDS增高;二是生活及工業(yè)污水的排放導(dǎo)致大量Cl-、SO42-和部分Mg2+、Ca2+進(jìn)入地下水中,造成TDS升高,這與TDS中Cl-和SO42-占主導(dǎo)地位相吻合。
[Abstract]:In order to study the present situation of groundwater pollution in the plain area of Yanqi Basin in Xinjiang, 42 sampling sites were set up in 2014, 42 groups of groundwater samples were collected, and the dissolved total solid dissolved solidsTDSs and anion contents in the samples were determined. SPSS software and MAPGIS GIS are used to analyze the spatial and temporal dynamics. The results showed that there was a significant difference between 1999 and 2014, and the relationship between TDs and macro anion, cationic component and pH value was analyzed, and there was a significant correlation between TDs and so _ 42-Cl-K _ (K) Na _ (mg _ (2) Ca ~ (2 +). The correlation coefficient was between 0.717 and 0.964, and the correlation with macro anions so _ 42-O _ (Cl-) was significantly higher than that with cations. The correlation coefficients were 0.963 and 0.964, respectively. On the time scale, the average TDs of groundwater increased first and then decreased and then increased and then decreased in the whole period from 1983 to 2014. The mean value increased from 305.0 mg / L in 1983 to 1773.1 mg / L in 1999, and then decreased to 589.44 mg / L in 2014. The area increased from 2 011.7 km2 in 1999 to 2 229.3 km 2 in 2014, corresponding to the decreasing trend of the average value of groundwater TDs from 1999 to 2014. There are two main reasons for the variation of TDs in the study area: first, the groundwater level decreased from 4.98 m in 2000 to 7.34 m in 2014, and the decrease of groundwater level promoted the soluble salt of calcium and magnesium in the soil and its lower sediments. The transfer of insoluble salt and exchangeable calcium and magnesium from solid phase to water causes more calcium and magnesium ions to enter groundwater, and increases TDs in groundwater. At the same time, the decrease of groundwater level leads to the increase of solute concentration in water. The second is that the discharge of domestic and industrial sewage leads to a large amount of Cl-so _ 4 _ 2- and part of mg _ 2 Ca ~ (2 +) into the groundwater, resulting in the increase of TDs, which coincides with the dominant position of Cl- and so _ 42- in TDs.
【作者單位】： 新疆農(nóng)業(yè)大學(xué)水利與土木工程學(xué)院;新疆水文水資源工程技術(shù)研究中心;中國(guó)地質(zhì)科學(xué)院水文地質(zhì)環(huán)境地質(zhì)研究所;
【基金】：中國(guó)地質(zhì)調(diào)查局項(xiàng)目(1212011220982) 新疆自治區(qū)水文學(xué)及水資源重點(diǎn)學(xué)科基金(XJSWSZYZDXK20101202) 新疆自治區(qū)地方公派出國(guó)留學(xué)成組配套項(xiàng)目(XJDF201307)
【分類號(hào)】：X523

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 宋保平;地下水災(zāi)害的分類及特點(diǎn)[J];石家莊師范�？茖W(xué)校學(xué)報(bào);2002年04期

2 張澤;;廣東須審慎對(duì)待地下水商機(jī)[J];環(huán)境;2006年11期

3 阮萬(wàn)清;;基于屬性區(qū)間識(shí)別理論的地下水開(kāi)采評(píng)價(jià)模型[J];煤炭技術(shù);2008年02期

4 ;新疆投12億勘查開(kāi)發(fā)地下水[J];地質(zhì)裝備;2008年03期

5 勞倫斯下·凱勒;馮文華;;美國(guó)地方水管區(qū)對(duì)控制地下水開(kāi)采的效能[J];海河水利;1983年04期

6 杰克.W.基利;曹衛(wèi)峰;;國(guó)際地下水調(diào)查的新趨勢(shì)[J];國(guó)外環(huán)境科學(xué)技術(shù);1983年02期

7 梁收運(yùn),史復(fù)有;蘭州黃河水——地下水關(guān)系研究[J];甘肅環(huán)境研究與監(jiān)測(cè);1997年02期

8 樊明;王東杰;;過(guò)量開(kāi)采地下水的農(nóng)業(yè)增產(chǎn)方式亟待調(diào)整[J];黃河文明與可持續(xù)發(fā)展;2012年02期

9 鄭禮全;逐步回歸法在地下水開(kāi)采中的應(yīng)用[J];山東科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2001年02期

10 葛天民;;地下水開(kāi)采中出現(xiàn)的一個(gè)新問(wèn)題——地下缺氧空氣[J];勘察技術(shù);1979年05期

相關(guān)會(huì)議論文 前10條

1 余v，

本文編號(hào)：2034706