文档介绍：摘 要
呼伦贝尔草原是我国目前保持还算完好的一块天然草原。它既是该地区少数民族赖以生存的物质基础,又是我国东北和华北地区的重要生态屏障。因此,维护呼伦贝尔草原的生态安全,防止生态灾难的发生,实现人与草原和谐共进的局面,意义极其重大。
除导论和结论外,本文的正文分为三章。第一章从草原原始生态面貌、生态环境恶化两个角度阐释了草原生态环境日益演变的过程,以此明晰呼伦贝尔草原生态环境恶化的程度,并指出因草原环境恶化所带来的严重危害。第二章分析造成呼伦贝尔草原生态问题的成因,指出这一方面与自然因素有关;另一方面与庞大的人口压力、不合理的经济行为等人为因素有关,同时明确指出后者是造成草原生态环境恶化的主要原因。第三章首先列举了草原生态安全维护的正反案例,为改善呼伦贝尔草原生态环境提供借鉴;然后基于对导致呼伦贝尔草原生态环境恶化主要原因的分析,运用生态安全的基本理论,结合科学发展观,提出维护呼伦贝尔草原生态安全的措施,即以科学发展观为指导,树立草原生态价值观;采取切实行动, 维护草原生态安全。
本课题的研究,既具有很强的呼吁性和探索性,也具有一定的针对性
与创新性。作者当然希望,自己的努力可以对呼伦贝尔草原生态环境的恢复与重建有所助益。
关键词生态安全;呼伦贝尔草原;生态环境;科学发展观;生态安全维护
Abstract
The Hulunbeier grassland is our country protected plete natural grassland so far. It is not only the basic producer capital of the herdsman in areas inhabited by ethnic minorities, but also the green shelters for our country northeast and northern region. Therefore, protecting the ecological security of the Hulunbeier grassland, preventing ecological disaster from taking place and realizing the aspect which the human and the prairie advance together harmoniously is of the significance.
Apart from the introduction and conclusion, the main text is divided into three parts. Chapter 1 explains the process of primitive ecological evolvement in two aspects like grassland pure ecological environment and the status quo of eco-environment deterioration, clears the extent of the deterioration of ecological environment on Hulunbeier grassland, and than points out the peril posed by degradation of the grassland environment. Chapter 2 analyzes the results of the Hulunbeier grassland ecological problems, and then points out that on the one hand, its origin is related to natural factors; on the other hand, it is associated with human factors such as burdensome population pressures, reasonless economic activities of human beings and so on. Meanwhile the author clearly notes that the latter is a main reason to result in the deterioration of ecological environment on grassland. In chapter 3, first takes the pros and cons of