【摘要】：以艾比湖主要入湖河流——精河與博爾塔拉河為研究對(duì)象,分別分析了精河與博爾塔拉河的水體溶解性有機(jī)質(zhì)(DOM)的組成結(jié)構(gòu)及水質(zhì)參數(shù)與熒光指數(shù)的關(guān)系.利用平行因子分析法對(duì)三維熒光光譜(EEM)分析發(fā)現(xiàn),精河與博爾塔拉河均含有C1(260/420 nm)腐殖酸等有機(jī)質(zhì)、C2(240,240/490 nm)UVC類腐殖質(zhì)、C3(220/280,300/450 nm)蛋白質(zhì)類有機(jī)質(zhì)和C4(260,270/530 nm)類腐殖質(zhì),且不同熒光組分結(jié)構(gòu)具有一定差異性.為了進(jìn)一步了解DOM組分特征,采用三維熒光區(qū)域積分法分析各區(qū)域標(biāo)準(zhǔn)體積百分比,結(jié)果表明精河與博爾塔拉河EEM的區(qū)域Ⅰ與區(qū)域Ⅱ蛋白質(zhì)有機(jī)質(zhì)含量最高,區(qū)域Ⅲ富里酸含量最低.相關(guān)性分析表明,主要入湖河流的水質(zhì)參數(shù)與熒光指數(shù)中,自生源指數(shù)(BIX)與總氮(TN)濃度以及腐殖化指數(shù)(HIX)與銨態(tài)氮(NH_4~+-N)濃度的相關(guān)性較強(qiáng),相關(guān)系數(shù)分別為0.831和0.684,且具有顯著性;HIX與TN濃度的相關(guān)系數(shù)為0.604,達(dá)到顯著性水平.進(jìn)而對(duì)相關(guān)性較強(qiáng)的水質(zhì)參數(shù)與熒光指數(shù)進(jìn)行3次擬合,其中HIX與NH_4~+-N濃度的擬合效果最好,相關(guān)性系數(shù)為0.908,其次是BIX與TN濃度,相關(guān)性系數(shù)為0.844.總之,通過分析精河與博爾塔拉河三維熒光特征,以及探討熒光指數(shù)與水質(zhì)參數(shù)的關(guān)系,可為治理干旱區(qū)水環(huán)境問題提供理論依據(jù)和參考.
[Abstract]:Taking Ching River and Boltara River, the main rivers of Ebinur Lake, as the research objects, the composition structure of dissolved organic matter (DOM) and the relationship between water quality parameters and fluorescence index of water body of Jinghe River and Boltara River were analyzed respectively. By using parallel factor analysis (EEM), it was found that both Jinghe River and Boltara River contain organic matter such as C1 (260 / 420 nm) humic acid, C2 (240240 / 490 nm) UVC humus), and C _ 2 (240240 / 490 nm) UVC), C _ 2 (240240 / 490 nm) UVC). C _ 3 (220 / 280300 / 450 nm) protein organic matter and C _ 4 (260270 / 530 nm) humus have different structures. In order to further understand the characteristics of DOM components, the standard volume percentage of each region was analyzed by means of three-dimensional fluorescence region integration method. The results showed that the content of protein organic matter in region 鈪，

本文編號(hào)：2407501