节点文献
贵州省区域生态系统特征分析
AN ANALYSIS ON THE CHARACTERISTICS OF THE REGIONAL ECOSYSTEM OF GUIZHOU PROVINCE
【摘要】 本文从区域生态系统的角度,分析贵州省资源、经济、人口和环境之间的动态关系。指出经济、人口的增长和区域生态环境质量退化相对应是贵州省区域生态系统的主要特征,其原因则是经济、人口与资源、环境之间不相适应。贵州省山地占总面积97%,耕地资源十分缺乏。但迫于人口三十余年成倍增长的压力,只能成倍地扩大耕地面积,上山毁林毁草,陡坡开垦,因此造成亚热带山地森林生态系统严重破坏,森林覆盖率下降到12.6%。水土流失、旱、涝等自然灾害日益加重。同时由于工矿发展,又叠加着环境污染。近年,随着乡镇企业的兴起,污染已向农村扩散。目前区域生态环境的退化已成为经济发展的重要障碍和农村贫困的根源。
【Abstract】 An analysis has been made on the dynamic relationship among the resources, economy, population, and environment in guizhou Province as a regional ecosystem. The analysis has indicated that the predominant characteristic in the regional ecosystem in Guizhou Province is the degradation of the eccsystem and environment because of inconsistency of economic development and population growth with ecosystem,resources and environment.The mountainous land in Guizhou amounts to 97% of its total area, so the resource of cultivated land is inadequate. Under the stress of the population growth that has been, doubled over the past three decades, however, people have had to extend doubly the area of their cultivated fields, to deforest and to degrass on mountains or hills, and to bring sleep hillsides under cultivation. As a result, the subtropical mountainous forest ecosystem has undergone a severe destruction that leads to a reduction in forest coverage to 12.6% of the total province area. Soil erosion is increasingly heavy and natural disasters such as drought and waterlogging are getting frequent and serious. In addition to this, meanwhile., there has been heavy environment pollution by both industries and mines. For the recent years, the rising up of township enterprises has resulted in pollution spreading throughout the rural area. So far, the- degradation, of the regional ecosystem and environment has become an important obstacle for further economic, development.
- 【文献出处】 生态学报 ,Acta Ecologica Sinica , 编辑部邮箱 ,1988年04期
- 【被引频次】4
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