松原市土地沙化机制及可持续发展模式

分析松原市沙区沙漠化机制 ,指出自然环境因素只是沙化的必要条件 ,松原市沙地演化最终取决于人类活动 ;取决于人类对该区采取什么样的发展模式。提出应从经济效益入手 ,发展高效生态型的土地利用模式。通过合理配置林种、树种 ,建立沙区人工草场等措施 ,建设具有良好经济效益的固沙体系 ;发展农牧交错带沙区高效生态型农业 ;充分利用沙区资源兴办沙产业是沙区人民摆脱贫困 ,实现可持续发展的关键。

Land Desertification Mechanism and Sustainable Development Mode in the Eastern Agro-pasture Ecotone

The agro-pasture ecotone is distributed in some regions of Inner Mongolia, Liaoning, Jilin, Hebei, Shaaxi and Shanxi provinces as well as Ningxia Hui Autonomous Region. In the ecotone, the land productive forces are reduced and the land degradation occurs due to the irrational economic activities and the vulnable ecological environment in these regions. This paper analyzes the land desertification mechanism in Songyuan City in the eastern agro-pasture ecotone, it is considered that the natural environmental factors are only necessary conditions of the land desertification, the evolution of land desertification depends mainly on human activities, and depends on what land use mode is taken in this region. It is suggested to start with the fine economic returns and develop the efficient ecological land use mode by rationally distributing the forest types and the trees species, constructing the artificial grasslands, etc. Thus, the sand-fixing systems with the fine economic returns can be set up, and the efficient ecological agriculture in the eastern agro-pasture ecotone can be developed. It is the key to develop the industry in the sandland areas by fully utilize the resources in the desertified regions for the residents to shake off poverty and build up a fortune and to achieve the regional sustainable development in the eastern agro-pasture ecotone.