中国北方农牧交错区研究展望

近年北京和华北地区的沙尘灾害天气引起了广泛关注，其上风向地区的农牧交错区不但是防护的重要屏障，也是沙尘的源地之一。为了减轻农牧交错区本身的生态压力和环境恶化，需要明确其范围、界线、发展历史和治理方式。综述了上述中国北方农牧交错区的研究进展，并展望了农牧交错区研究中比较紧迫的区域和研究方向。在研究的领域当中，荒漠化及物质迁移仍然是持续研究的基础，景观（土地利用）变化及其模拟和水土保持等生态恢复研究是针对性较强的研究内容；在农牧交错区中，河北坝上地区和内蒙古乌盟后山、长城沿线、毛乌素和科尔沁等农牧交错地带是重

Advances in Agro-pastoral Zone of Northern China:an Overview

The disaster of dust storm in Beijing region and northern China has a wide social influence in recent years. The agro-pastoral transitional zone in the windward regions of these regions is the pivotal belt to prevent the natural disaster meanwhile it is one of the sand sources of the dust storm. The location, borderline development processing and management methods of agro-pastoral zone are necessary to the study for alleviating the ecological pressure and environment deterioration. Itreviews advances in the mentioned fields and presents an overview of the fragile areas need to be managed urgently and some directions which absorb the concentration of the study. Among these the study of desertification mechanism and the processing of mass movement are the basic for sustained study, it is necessary to rehabilitate and recover ecologically such degraded areas in the field of landscape (and or land use) changes and simulates, soil and water conservation. Some regions should be managed as soon as possible in the agro-pastoral zone, such as Bashang Highland in Heibei Province and Houshan of Wulanchabu League in Inner Mongolia, the areas alone the Great Wall, Maowusu sandy land and Kerqin sandy land.