Advanced Materials Research Vols. 726-731

Abstract: The unprecedented loss of arable land has long been a matter of urgent concern to the Chinese government. Rural house-building craze in some underdeveloped area in China is one of the main factors which caused the destruction of farmland . Why do villagers use scarce farmland to construct house And why has the Chinese government been unable to control housing construction in the countryside Previous studies of the factors motivating the rural housing boom tend to explain this either as an economic rational actors or a social mobility tactic.This paper presents interview in a village in Jiangxi province, and shows that land management out of order, the social aspirations of families and the habitus of land use rules are major stimuli of the rural house-building craze.

Abstract: As a core of the sustainable development, the ecological civilization construction is importment to realize the harmony on the process of the social and economic development between Human being and nature. By analying the status of the ecological environment destruction caused by coal mining activities in China, this paper summarizes and puts forward five modes for the land reclamation and ecological reconstruction (LRER). Simultaneously, the existing problems of the LRER are analyzed and the related necessary measures are concluded, providing the theoretical reference for future research and practice.

Abstract: The paper chooses West Hainan (Dongfang city and Changjiang county) as the research area, takes the towns as the unit, and analyses the change and relationship of population-farmland-settlement from 1950s to 1970s. The research shows that the correlation coefficient of population size and farmland area is 0.313 in 1950s and 0.417 in 1970s in West Hainans 29 towns, the two belong to low correlation, population and farmland have smaller relationship; the correlation coefficient of farmland area and settlement area is 0.454 in 1950s and 0.598 in 1970s, the two belong to moderate correlation, farmland and settlement have substantive relationship; the correlation coefficient of population size and settlement area is 0.794 in 1950s and 0.710 in 1970s, the two belong to high correlation, the relationship between the population and the settlement is very close.

Abstract: On the basis of the construction of index system, by the factor analysis and the model of coupled coordination degree, the coupled coordination degrees in 2005 and 2010 between development of urban land intensive use system and social economic system are studied in 17 ground level cities of Shandong province. The first results showed that f (x) and f (y) in 2010 were higher than in 2005, which indicated that the degree of urban land intensive use and development level of the social economy were improved. The second results was that the coupled coordination degree of two systems was higher than in 2005, but if f (x) and f (y) were smaller, the gap in the capacity of comprehensive coordination was larger, the coupled coordination degrees were the smaller. So comprehensive development levels in single system were improved, which could not promote positive development between two systems.

Abstract: With construction and development of opencast coal mine, its damage to the land resources and ecological environment in mine area become increasingly serious. Thus, assessing change law of reclaimed mine soils is essential for land reclamation and ecological restoration in ecological fragile area. Is this study, soil Bulk Density, Organic matter, Available P, Available K, Alkali-hydrolyzed N, Total N, pH value, Electrical Conductivity was analyzed in different sampling sites with different reclamation age and an unmined site as a reference in Inner Mongolia mining waste dump. The soil Organic matter, Available P, Available K, Alkali-hydrolyzed N and Total N increased with reclamation age, all the soil factors gradually arrived at their content in original landform. A model of RMSs characteristics was constructed using index sum method. RMSs characteristics had been improved in study area, and gradually arrived at the original landform level.

Abstract: Qinhuangdao City combines three traditional coastal zone resources, namely, harbor, tourism and fishery. A scheme for the functional zone division of Qinhuangdao City is proposed in this study. It is hoped that our study will contribute to the reasonable utilization of the coastal zone resources, achieve the equilibrium and optimization of economic, social and environmental benefits, as well as the sustainable development of coastal economy of Qinhuangdao City, Our research is based on field survey and thorough data analysis while giving full consideration to the coastal type and resources environment of Qinhuangdao City. Six functional areas are divided, and we separately focus on the distribution, resources advantages, main function and environmental protection of these functional areas. The current status and existing problems of coastal resources development are reviewed. Finally, we propose suggestions concerning the orientation of further coastal resources and provide reference for scientific utilization of coastal resources.

Abstract: With the improvement of China's economic development and urbanization level, more and more cultivated lands are converted into construction lands;the contradiction between land demands for economic development and cultivated lands protection is becoming increasingly acute. The work of linking the increase with decrease of urban and rural construction lands becomes the important measure to solve the contradiction. This paper analyses the problems existing in pilot areas which develop the work of linking the increase with decrease of urban and rural construction lands, and puts forward solutions to those problems.

Abstract: This paper analyzes and puts forward some new thoughts in Jiaozuos farmland protection under the situation of rapid economic development and increasing urbanization level. With use of linear regression analysis and comparative study, the retained farmlands of Jiaozuo City in 2015 and 2020 are predicted and contrasted to the data from 20152020 General Planning of Jiaozuo citys land use, from which we know that the farmland protection task of Jiaozuo city is arduous. In connection with the reasons for the farmland reduction, some measures and suggestions to protect farmland are put forward.

Abstract: Problems existed in the green space construction of city new districts, such as loss of ecological functions, the simple pursuit of quantity, high degree of landscape fragmentation. This paper took the concept of sustainable development as a guide, combined with new-district constructions of Sweden, Britain and Germany, the following proposals for green space system planning were put forward to realize sustainable development of new districts: planning should be oriented by ecological functions; positive interaction must be sought between green space system and the new-district space development; protection on the natural landscape resources and continuous landscape process must be strengthened; green space system planning should focus on the continuation of regional context.

Abstract: Power stations provide a huge influence on the environment. This influence can be diverse and integrated: (1) land avulsion, (2) dusting from the open storage spaces of fuel, ash and slags, (3) huge amounts of ash-slug wastes containing toxic metals. The aim of the research is to evaluate the effect of ash-slug wastes of the coal-burning power station (CBPS) Partizanskaya on the ecological state of soils. Transformation of the physical properties of the soils appears in the increasing fraction of coarse grain size, reducing of the sludge content in the soils, which lowers the surface area of the soils and their sorption properties. Ash particles input to the surface of soil leads to the decrease in their antierosion properties. Water capacity properties of the soils are reduced and with the moisture up to 50% soils can flow. The obtained information about the properties of the abiotic components of the industrial area of the CBPS Partizanskayaash-slags, soils are the first step in studying the environmental situation in this area. One of the possible solutions aimed to improve the environmental situation in the industrial area of the CBPS Partizanskaya is recultivation of the ash dump and development of the technologies for the usage of the ash in the household economy.