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The Environmental Fragility Assessment and Driving Force Research in the District of Taihang Mountain in Hebei Province

Author: MaKaiFei
Tutor: GeJingFeng
School: Hebei Normal
Course: Physical Geography
Keywords: environmental fragility Taihang Mountains in Hebei Province driving force evaluation
CLC: X321
Type: Master's thesis
Year: 2008
Downloads: 101
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Abstract

The discrepancy between the natural environment and the existing style of human being makes different districts which face the threat of environment and development, have different fragility. In recent years, with the development of the research of the effect of global change, especially the strengthen of human activity research in the field of globalization research, the study of“fragility”and“fragility evaluation”received more and more attention. In various issues about the current global environment and development, the issue of the fragility of the environment gradually becomes one of the most outstanding issues.Taihang Mountain is located in the west of northern China. It belongs to the joint zone between Northern China Plain and the loess plateau and is the transitional zone of the middle and western area. So it not only has the common environmental fragility of the transitional zone but also the unique natural, economic and cultural background. Base on those backgrounds, it is very important to evaluate the environmental fragility of this zone and study its driving force. It will be very helpful to realize the sustainable development of this zone’s nature, economy and society.Under the macro guider of the scientific and developmental theories, the paper builds the evaluation pattern and makes time and space analyses of the environmental fragility. The paper also analyzed the major driving force which led the fragility of the ecosystem based on the assessment. At last it pointed out the corresponding resolution and tried to offer some references and foundation for the recover and rebuild the ecosystem of this region. The major researching conclusion is as follows:(1)The thesis conducts the analysis to the fragile ecological situation in the zone researched according to time and space. From the order of space, during the year 1987 to 2005, the general situation gets better and the fragile situation gets better as well. The most complicated fragile situation is located in the middle and south parts of the whole zone, including IV, III, II these three bands of situations, the middle-north zone (Baoding)being the worst. According to the sequence of time, the average index of ecological fragility decreased 6.06% in the year 2000 than that of 1987, 0.77% in the year 2005 than that of 2000, 6.78% in the year 2005 than that of 1987. In a word, the general ecological situation improves.(2)This thesis also analyzes the major causes of this fragility in this zone. Based on the assessment of the fragility in Taihang Mountains, this thesis uses the method of elemental analysis, regarding that there are six major causes contributing to the fragility, i.e. the land resources, the situation of natural resources, the developing stage of the society, the developing stage of the agriculture, the arable land situation and the forest land situation. The accumulating contributive rate by these six causes reaches 87.002% ,and 32.533%、18.851%、14.430%、9.020%、7.147%和5.132% respectively.This thesis conducts the following several trials:(1)It is the first time that it sets up the evaluation system of the environmental fragility in Taihang Mountains, and it conducts the analysis of time and space in the field of the tendency of environmental fragility;(2)It is the first time that it conducts the analysis of the driving factors of environmental fragility(;3)It raises the issue that is waiting to be solved and the corresponding regulating measures to the environmental fragility in Taihang Mountains.

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