本文選題：地下水 + 地表水�。� 參考：《內(nèi)蒙古農(nóng)業(yè)大學(xué)》2017年碩士論文

【摘要】：隨著全球氣候和經(jīng)濟的快速變化,造成生態(tài)環(huán)境嚴重破壞,生活中各種用水問題越來越嚴重,為深入探究合理利用水資源提供理論性依據(jù),最終實現(xiàn)正藍旗人、水、自然的和諧發(fā)展。論文以正藍旗境內(nèi)的閃電河流域為研究,在地下水、地表水、大氣降水氫氧同位素的測定基礎(chǔ)上,分析得到"三水"之間轉(zhuǎn)化關(guān)系,系統(tǒng)研究了分布規(guī)律。從時間、空間和氣候環(huán)境角度分析"三水"間的關(guān)系,用三端源線性混合模型定量分析計算三水之間補給關(guān)系及補給量。在綜合分析討論的基礎(chǔ)上,可以得到以下結(jié)論:(1)分別研究地下水、地表水、大氣降水"三水"間的δD、δ180同位素分布規(guī)律和補給關(guān)系,對比4年各季節(jié)的氘盈余量平均值可知,冬季的氘盈余量在數(shù)值上大于春季、夏季與秋季,并且隨著環(huán)境溫度和降雨量的變化氘盈余量先減小后增大,降雨量最大時其氘盈余量最小。(2)結(jié)合4年的溫度、降雨量來對大氣降水中的δD、δ18O含量分析和研究,結(jié)果表明溫度較高,降雨量較多的6、7月份的大降水中的δD、δ18O含量較大,大氣降水中δD、δ18O的含量隨著溫度的升高、降雨量的增大而增大。(3)分別研究地下水、地表水與大氣降水線的關(guān)系得:地表水相比地下水更加靠近當?shù)卮髿饨邓�,另外,這也說明大氣降水大量的補給地下水。在地下水接受大氣降水補給一段時間后,地下水中的δD、δ18O含量慢慢接近當?shù)卮髿饨邓械摩腄、δ18O含量。(4)采用三端源線性混合模型計算,計算結(jié)果表明從春季到秋季在同一斷面上大氣降水、上游地表水補給比例先增大后減少,地下水的補給比例先減少后增大。
[Abstract]:With the rapid changes of the global climate and economy, the ecological environment is seriously damaged, and the problems of water use in life become more and more serious. It provides a theoretical basis for further exploring the rational use of water resources, and finally realizes the people of Zhenglan flag, water, The harmonious development of nature. On the basis of the determination of hydrogen and oxygen isotopes of groundwater, surface water and atmospheric precipitation, the transformation relationship between "three rivers" is obtained and the distribution law is systematically studied in this paper, taking the Lightning River Basin in Zhenglan Banner as a research area, based on the determination of hydrogen and oxygen isotopes in groundwater, surface water and atmospheric precipitation. The relationship between "three water" is analyzed from the angle of time, space and climate environment, and the supply relation and supply quantity between three water are calculated quantitatively by using the linear mixing model of three end sources. On the basis of comprehensive analysis and discussion, the following conclusions can be drawn: (1) the 未 D, 未 180 isotopic distribution and recharge relationship between groundwater, surface water and precipitation are studied respectively, and the average value of deuterium surplus in each season of 4 years is compared. The value of deuterium surplus in winter is larger than that in spring, summer and autumn, and with the change of ambient temperature and rainfall, deuterium surplus decreases first and then increases, and when rainfall is maximum, deuterium surplus is the smallest. The contents of 未 D, 未 18O in precipitation are analyzed and studied by precipitation. The results show that the contents of 未 D and 未 18O in precipitation are higher than those in high temperature, and the contents of 未 D and 未 18O in precipitation in July are higher than those in July, and the contents of 未 D and 未 18O in precipitation increase with the increase of temperature. The relationship between the surface water and the precipitation line is studied. It is concluded that the surface water is closer to the local precipitation line than the ground water. In addition, this also shows that the atmospheric precipitation recharge groundwater. After the groundwater is recharged by atmospheric precipitation for a period of time, the contents of 未 D and 未 18O in groundwater are slowly approaching those in local atmospheric precipitation, and the content of 未 D, 未 18O is calculated by using the three-terminal source linear mixed model. The results show that the upper surface water recharge ratio first increases and then decreases, and the groundwater recharge ratio decreases first and then increases from spring to autumn on the same section.
【學(xué)位授予單位】：內(nèi)蒙古農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P339

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