| Land as mother of wealth is the essential material of human existence and development. However, for a long time, human excessive pursuit the economic growth. The using intensity of land resource is growing up everyday. The way of using land resource is simple and extensive. At the same time, various of human activities are rising, that is seriously damaged to land resource ecological environment, even threated to the safty of human beings. So effective measures must be taken to improve the land resource ecological environment. Before these we need to know the evolution rule of land resource ecological security. We also need to determine the alarm situation and early-warming level of land resource ecological security. Then we could make the alarm before the land resource ecological environment become worse. So the land resource ecological security early-warming research is obviously very important.The paper researched the early-warming of land resource ecological security in Poyang Lake Ecological Economic Zone. The thesis is divided into seven chapters.Chapter 1 Introduction:This chapter mainly described the paper's research background, purpose, meaning, the research results of land resource ecological security early-warming at home and abroad, the research methods and techniques lines. Whice is the basis of this paper.Chapter 2 Land resource ecological security early-warming theory:This chapter introduces the theoretical basis of this article. Which is includes the evolution mechanism of land resource ecological security, the early-warming theory, and the Pressure-State-Response(P-S-R) model theory.Chapter 3 Overview of Poyang Lake Ecological Economic Zone:This chapter described the overview of natural resource, socio-economic, land using, and land resource ecological environment.Chapter 4 Construct the index system of land resource ecological security early-warming in Poyang Lake Ecological Economic Zone:According to the principles of index system construction, this paper used the principal component analysis to select 20 indicators from 36 indicators as the index of this early-warming research. This paper used chromatography analysis and P-S-R model theory to construct early-warming index system, and identified the weight value and the standard values of index.Chapter 5 The comprehensive analysis of land resource ecological security early-warming in Poyang Lake Ecological Economic Zone:This chapter used comprehensive index to calculate land resource ecological security integrated value in Poyang Lake Ecological Economic Zone, and then analyzed the results. From 2001 to 2005 the land resource ecological security early-warming degree in Poyang Lake Ecological Economic Zone is light alarm to serious alarm, it is getting worse. From 2006 to 2008 the land resource ecological security early-warming degree in Poyang Lake Ecological Economic Zone is serious alarm to middle alarm, it is getting better. At 2008, in the 31 counties (citys, districts) of Poyang Lake Ecological Economic Zone, there are 8 counties (citys, districts) include Nanchang city, Nanchang county. Xinjian county and so on are light alarm. There are 19 counties (citys, districts), include Jinxian county. Fuliang county, Jiujiang city, Jiujiang county. Yongxiu county and so on are middle alarm. There are 4 counties (citys, districts), include Ruichang city, Wuning county, Yugan county, Poyang county are serious alarm.Chapter 6 The control measures of land resource ecological security early-warming in Poyang Lake Ecological Economic Zone:This chapter proposed control measures in natural, economic, and social three respects for reference. And for these 31 counties (citys, districts) in the zone, this paper suggest seize the emergency points to take measures.Chapter 7 Conclusion and Outlook:This chapter summarized the research results of article, proposed respects which need to be improved, and listed the development direction of land resource ecological security early-warming in the future.
|
PDF Full Text Request