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本文以我国西北地区为例,主要就陆地内循环的发生区域、水汽来源及教学定位等问题进行探讨。陆地内循环不仅发生在内流区域,也发生在外流区域。许多内陆地区降水的水汽来源主要来自该区域之外。应适当重视陆地内循环地理意义的教学,尤其是人类活动对陆地内循环影响的教学,探讨如何利用水循环原理来实现内陆地区水资源的可持续发展。
Taking Northwest China as an example, this article mainly discusses the occurrence area, sources of water vapor and teaching orientation in the land circulation. Intra-land circulation occurs not only in the inflow area but also in the outflow area. Many of the sources of water vapor from precipitation in the interior are mainly from outside the region. Appropriate attention should be paid to the teaching of geography within the land cycle, especially the teaching on the effect of human activities on the intra-terrestrial circulation, and on how to utilize the principle of water cycle to realize the sustainable development of water resources in inland areas.