摘要
黄土高原及其毗邻地区自然环境演变及区域分异的研究,涉及到若干虽经长期争论,至今并未得到解决的基础理论问题。然而,它们却是治理黄土高原严重水土流失的重要基础。本文就全新世以来的植被变迁、历史时期农牧业发展历程、黄土高原空间范围、干湿状况和雨养农业、现代自然环境的区域分异与综合治理等问题阐述了基本观点。认为,全新世中晚期以来,多数地方就是森林和草原相嵌构成的自然景观;全新世晚期以来,植被的破坏加剧;历史时期农牧业区域曾经历频繁更迭;现在的种种环境问题,自清朝以来已全部明朗化;黄土高原的空间范围与地质上的黄土沉积稳定带大体相符,面积近36万平方公里;水土流失的治理和农业生产均应以自然区域分异为纲。
For quite a long time, the natural environmental evolution and regionaldifferentiation of the Loess Plateau and its neighbouring regions, which arevery important basis in harnessing the Loess Plateau, have been the centralissues of argument and research. In this paper, some basic opinions on the following problems are set for-th: variations of vegetation since the middle-late period of Holocence, his-torical development of agriculture and animal husbandry, the differentiation ofthe natural environment and soil consevation and so on.
出处
《干旱区资源与环境》
CSCD
1990年第1期1-8,共8页
Journal of Arid Land Resources and Environment
