發(fā)布時(shí)間：2018-05-14 20:03

  本文選題：通用流域污染負(fù)荷模型 + 流域水環(huán)境管理��； 參考：《南開(kāi)大學(xué)》2014年博士論文

【摘要】：本論文選取國(guó)際上流行的通用流域污染負(fù)荷模型(GWLF)作為研究對(duì)象。首先,對(duì)GWLF模型的算法理論進(jìn)行了細(xì)致的分析,提出了一套針對(duì)原有模型弱點(diǎn)的算法改進(jìn)策略,并基于實(shí)際案例對(duì)效果進(jìn)行了評(píng)價(jià)。結(jié)果表明,新增的模型算法能夠彌補(bǔ)原始模型在水文結(jié)構(gòu)假設(shè)上的不足,應(yīng)用改進(jìn)的GWLF模型,能夠顯著提高對(duì)流域枯水期水量的模擬精度,進(jìn)而提升模型結(jié)果的可靠性。 在上述研究的基礎(chǔ)上,選取中國(guó)北方的于橋水庫(kù)流域和南方的新安江流域,面向我國(guó)地方環(huán)境管理的實(shí)際需求,應(yīng)用GWLF模型開(kāi)展了案例應(yīng)用實(shí)踐研究。研究結(jié)果表明,改進(jìn)的GWLF模型能夠在月尺度上很好地模擬目標(biāo)流域的水文化學(xué)過(guò)程,解析流域內(nèi)特征污染物的負(fù)荷貢獻(xiàn)來(lái)源,并面向不同的需求目標(biāo),開(kāi)展時(shí)空差異性分析,包括揭示在不同水情、不同季節(jié)、極端污染等條件下的流域污染來(lái)源結(jié)構(gòu)特征,以及面向人為行政區(qū)劃的污染負(fù)荷來(lái)源空間結(jié)構(gòu)差異性分析。上述案例研究結(jié)果表明,GWLF模型在我國(guó)有良好的適用性,其數(shù)據(jù)需求與我國(guó)現(xiàn)有的基礎(chǔ)環(huán)境數(shù)據(jù)條件相匹配,結(jié)果精度和結(jié)論能夠滿足一般的環(huán)境管理需求,具有重大的推廣應(yīng)用價(jià)值與潛力。 基于上述結(jié)論,為推動(dòng)GWLF模型在我國(guó)的發(fā)展,本論文研究利用已有的模型算法機(jī)理與應(yīng)用實(shí)踐經(jīng)驗(yàn),進(jìn)一步使用JAVA計(jì)算機(jī)程序語(yǔ)言,開(kāi)發(fā)了具有獨(dú)立自主知識(shí)產(chǎn)權(quán)的全中文版GWLF模型軟件。該軟件整合了參數(shù)自動(dòng)校準(zhǔn)的功能,并面向不同用戶層的特點(diǎn)與需求分別設(shè)計(jì)了精簡(jiǎn)模式和專(zhuān)業(yè)模式,可供地方基層環(huán)境管理人員與普通專(zhuān)業(yè)科研人員使用,進(jìn)而在理論層面及應(yīng)用層面推動(dòng)了GWLF模型在中國(guó)的推廣普及。 總體來(lái)說(shuō),本論文研究以GWLF模型技術(shù)為核心,以面向中國(guó)水環(huán)境管理需求的流域模型應(yīng)用為目標(biāo),以驗(yàn)證GWLF模型在我國(guó)應(yīng)用的適用性為目的,開(kāi)展了一系列相關(guān)的研究工作�；谒玫降难芯拷Y(jié)果可知,本論文提出的基于模型技術(shù)的科學(xué)決策支撐體系,能夠?yàn)樘嵘覈?guó)流域水環(huán)境管理的科學(xué)化與精細(xì)化水平,提供新的理念與方向；模型的案例研究結(jié)果能夠?yàn)镚WLF模型在我國(guó)環(huán)境管理工作中的應(yīng)用實(shí)踐提供現(xiàn)實(shí)參考；所開(kāi)發(fā)的全中文模型軟件能夠作為制定科學(xué)決策支持信息的可靠工具。
[Abstract]:In this paper, the universal watershed pollution load model (GWLF) is chosen as the research object. Firstly, the algorithm theory of GWLF model is analyzed in detail, and a set of algorithm improvement strategy aiming at the weakness of the original model is put forward, and the effect is evaluated based on the actual cases. The results show that the new model algorithm can make up for the deficiency of the original model in the hydrological structure hypothesis, and the application of the improved GWLF model can significantly improve the accuracy of the simulation of the water volume in the dry season of the watershed, thereby enhancing the reliability of the model results. On the basis of the above research, this paper selects the Yuqiao Reservoir basin in the north of China and the Xin'an River basin in the south to meet the actual needs of local environmental management in China, and carries out the case application study by using the GWLF model. The results show that the improved GWLF model can well simulate hydrological processes in the target watershed on a monthly scale, analyze the sources of the load contribution of the characteristic pollutants in the basin, and carry out spatio-temporal differences analysis for different demand targets. It includes revealing the characteristics of the pollution source structure under the conditions of different water regime, different seasons and extreme pollution, as well as the analysis of the spatial structure difference of the pollution load source for the artificial administrative division. The results of the case study show that the GWLF model has good applicability in China, and its data demand matches the existing basic environmental data conditions in China, and the accuracy and conclusion of the results can meet the general environmental management needs. It has great application value and potential. Based on the above conclusion, in order to promote the development of GWLF model in our country, this paper uses the existing model algorithm mechanism and practical experience to further use JAVA computer programming language. An all-Chinese version of GWLF model software with independent intellectual property rights is developed. The software integrates the function of automatic calibration of parameters, and designs a simplified model and a professional model to meet the characteristics and needs of different user layers, which can be used by local environmental managers and ordinary professional researchers. Then it promotes the popularization of GWLF model in China at the theoretical level and application level. In general, this paper focuses on GWLF model technology, aims at the application of watershed model to meet the water environment management needs in China, and aims to verify the applicability of GWLF model in China, and carries out a series of related research work. Based on the results of the research, the scientific decision support system based on the model technology proposed in this paper can provide a new idea and direction for improving the scientific and fine level of watershed water environment management in China. The results of the case study can provide a practical reference for the application of GWLF model in environmental management in China, and the all-Chinese model software can be used as a reliable tool for making scientific decision support information.
【學(xué)位授予單位】：南開(kāi)大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：X52

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