水污染

But the water pollution in Suzhou is very disproportional with its image both home and abroad. It is very necessary and urgent to protect the water resources, to treat the water pollution and to improve the water environment.

但是，苏州的水环境问题与苏州在国内外的形象极不相称，保护水资源、治理水污染、改善水环境十分必要而紧迫。

All along, our country has invested significant resources every year to focus on the drainage basin of water pollution control and source water protection, and achieved some success.

一直以来，国家每年都投入大量资金用于重点流域的水污染治理和水源地保护工作，并且取得了一定成效。

Drainpipe net is an important and basic installation in modern cities and industrial estate, meanwhile it is a major project measure which could control water pollution and improve the environment.

中文摘要：排水管网是现代化城市和工业区不可缺少的一项重要基础设施，同时也是控制水污染、改善和保护环境的重要工程措施。

Nitrogen leaching to the groundwater is one of the major nitrogen loss ways in dry land farming systems,and contributes to a large extent in groundwater pollution.

渗漏流失是旱地农田氮素流失的主要途径之一，也是引起地下水污染的重要原因。

The establishment of unexpected events of the public system, through which dealing with the disposal of the various specific and reasonable to all aspects of decomposition to ensure that the interaction between the different segments of convergence and effective operation, is the basic security for government to handle sudden major water pollution incidents calmly.

通过应对突发性公共事件的制度建设，把各种应对处置的具体事务合理分解到各个环节中去，确保不同环节之间的相互衔接和有效运行，是实现政府从容应对重大突发性水污染时间的基本保障。

Then the influence of stochastic observation error on different model for environment evaluation in two cases, namely uniform variance and nonuniform variance, is investigated using Monte Carlo method.

水环境评价是防治水污染的前提和基础，也是进行水质规划的依据。

They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .

因此从处理效率和环境化学意义两方面考虑，结合本课题组在不同铁形态（包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等）的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础，本论文选择了四类共9种典型的内分泌干扰物（雌二醇（E2）、雌酮（E1）、17α-乙炔基雌二醇（EE2）己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯），研究了它们在Fe-草酸盐配合物体系中的光降解效果，推测其降解机理，探索环境内分泌干扰物光氧化处理的新体系，同时为预测其在环境中的光降解行为提供了依据。

Nowadays, with the water pollution problems becoming more and more serious, the eutrophic problem of the water body becomes more and more prominent.

在水污染日益严重的今天，水体富营养化问题越来越突出。

So it is more imported to control input from out system then control input from everglad circumjacent area, viewed from strategically control contaminations in everglade of Dongting Lake. Control area pollution was more import then control point pollution.

因此，在洞庭湖湿地水污染的治理上，控制系统外水系输入比控制湿地周边更重要，控制面源污染比点源污染更重要。

The water pollution is very big to our banes, and its fluxion speed is also very quick, as long as have a place is polluted, these toxins will soon flow to another river to flow.

水污染是对我们的危害相当大的，而且它的流动速度也很快，只要有一个地方被污染了，这些毒素会很快的流到另一条河流。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。