Advanced Materials Research Vols. 864-867

Abstract: At present China has entered into the rapid development of urbanization, facing the transition from extensive city to conservation-minded city. We need to actively explore the road of urbanization with Chinese characteristics, so as to save resources, improve the quality of urban environment, and create a more suitable living environment. In view of this, this thesis analyze the habitability of Enshi City mainly from the perspective of natural environment, cultural environment, living conditions, public facilities, resources, and put forward their own understanding of livable city and some suggestions of Enshi habitable environmental improvement.

Abstract: This paper proposes two complementary procedures for assessing the global quality comfort: the first one, prevalently objective, is based on the acquisition of microclimate measured data and computed subjective values; the second one, that is purely subjective, uses a questionnaire drawn from the ISO/DP 10551 Recommendation. An application to some lecture-halls and laboratories of the school is here showed.

Abstract: It is widely believed that the economic success in China is achieved at the expense of natural resources and has resulted in severe pollution of the environment, especially water resources. This study applies a hybrid input-output (IO) model linking economic and ecological systems in order to analyze water consumption and wastewater discharge in the Haihe River Basin. Within the environmental IO framework, a series of assessment indicators is calculated to assist in tracking both direct and indirect effects of freshwater consumption and wastewater discharge in the economic sector, as well as to distinguish the economic sectors that have greatest influence on water demand and pollution. Assessment results indicate that water consumption and pollution can be reduced by readjusting the structure of production, consumption and trade in the Haihe River Basin. It is concluded that in order to achieve sustainable development in the Haihe River Basin with its very poor water endowment, not only the direct but also the indirect effects on water demand and pollution should be considered when production, consumption and trade policies are formulated.

Abstract: Recently, the urbanization process in cities of developing countries has been at an unprecedented scale. However, this process is more under economic development-driven rather than a sustainable way, and has exerted huge pressures on nature ecosystem of cities. In this research, we try to assess the impacts of urbanization on the functionality of ecosystem in cities in northwestern China, through applying remote sensing technology and estimating changes of ecosystem services value (ESV) of a city during the urbanization process. A case study has been taken in Xian, a major city of northwestern China. Results revealed that the ESV of Xian has opposite trend of urbanization rate, and the urbanization process has significantly jeopardized the integrity and functionality of the ecosystem of Xian.

Abstract: Industrialization bring a great deal of environmental burden in our country, heavy metal pollution problems have become increasingly prominent. In order to prevent and control the Heavy metals pollution effectively, this paper discusses the location problem of heavy metals enterprises. Through the discussion of the factors of heavy metals company location, based on the health protection distance, establish multi-objective model by achieving three goals: minimizing the risks of surrounding neighborhoods; fair maximization; Cost minimization. The optimal heavy metal enterprises location has certain practical significance in the control of heavy metal pollution events.

Abstract: In this paper, the knowledge about stratigraphic classification is introduced in detail. According to several hundred geological survey report in china, one new method about stratigraphic classification is put forward, by which rocks are divided into three categories on the base of Protodyakonov's coefficient f, and soils are divided into three categories on the base of geological age. The method about stratigraphic classification put forward is helpful for construction of underground warehouse in China.

Abstract: This paper introduces the environmental problems caused by impoundment the Three Gorges Project (TGP). In order to effectively monitor and control the negative impacts of the TGP, the eco-environmental monitoring system which is one of the largest eco-environmental monitoring network in the world has been established. Through the monitoring system, the information about the impacts of impoundment on the eco-environment can be grasped timely. This paper takes two typical eco-environmental problems: the water blooms and the four major domestic fishes as examples, and then mainly study on the eco-environment scheduling on this two aspects. After the eco-environment scheduling, the water level fluctuation has been greatly increased. It reduced the impacts to sensitive waters caused by the project. During the breeding season of the four major domestic fishes, through increasing the water discharge, the water level continued to rise in different hydrological stations downstream. The changes are more conducive to breeding of the fish. By analysis of the results caused by the operation, it is easily know that eco-environment scheduling is beneficial to monitor the negative impacts. The eco-environment scheduling based on the eco-environmental monitoring system is of great significance.

Abstract: In the evaluation of water-damaged West-East gas pipelines, a variety of impact factors (namely evaluation indicators) such as topography, lithology, rainfall intensity, etc., will be involved. Because of the factors different impacts on the evaluation objectives, the determination of their weight is very important. In order to evaluate the damaged West-East gas pipelines systematically, comprehensively and scientifically, this paper based on the basic principles of analytic hierarchy process (namely AHP), first analyzed the meaning of impact factors weight model according to the damage situation along the West-East gas pipelines, and then evaluated the water-damage using Analytic Hierarchy Process - Expert Weighting method (hereafter referred to as AHP-EW) which reduced the subjectivity and improved the reliability. The practical application verified the rationality and feasibility of AHP-EW method.

Abstract: This study evaluated the sustainability of Jing-Jin-Ji Region by exploiting as emergy tool for transforming the consumption to the land area appropriated, and analyzed the development level by attempting to integrate with human development index. The result showed that emergy energy footprint per capita in the Jing-Jin-Ji region has increased from from 5.6917 hm² to 10.5596 hm² within the past ten years at an average growth of 9.50% annually, appearing unsustainability. It was also demonstrated that the energy deficit , energy footprint itensify and energy pressure index were presented to depict severe insecurity of the ecological system. And the value of human development index in the region were higher than the corresponding nationwide average value, indicating a certain degree development of society and economy. The study would provide the foundation for regional sustainable development research in similar area.

Abstract: In order to ensure sustainable development of seaboard city, it needs to pay more attention to Strategic Environmental Assessment. It is a realistic choice for establishing a set of index system for environmental impact assessment of seaboard city planning. Based on theories and practice both home and abroad, the principles and technical procedure on SEA system of seashore city planning are discussed. The index system suitable for seaboard city is established. The index system includes three levels. The first level is divided into 4 categories, which are natural environment, resource and energy utilization, ecological environment and social-economic index. The second level is divided into 11 categories, such as surface water, atmosphere, acoustic and soil environment. The third level includes more than 90 indexes.