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伴随着西部大开发,包括黄土高原在内的西部地区掀起了大规模的荒山绿化、退耕还林的热潮,以求恢复当地的植被,改善生态环境,促进经济社会发展,这是应当大力提倡和肯定的好事。最近,中央领导同志也一再强调加速退耕还林还草,恢复黄土高原的植被,改善生态条件。但是,如何恢复和重建黄土高原的植被,却值得认真思考和研究。保护与恢复并重过去相当一段时间对黄土高原历史时期的植被状况存在“森林茂密”的误解。一些历史地理学者根据有关文献记载和现今黄土高原地区残存的原始森林和次生林,提出黄土高原古代是森林和森林草原环境,并有人据此引伸出森林覆盖率
With the large-scale development of the western region, the western region, including the Loess Plateau, has set off a large-scale barren hillside afforestation and the upsurge of returning farmland to forests in order to restore the local vegetation, improve the ecological environment and promote economic and social development. This should be vigorously promoted and Sure good thing. Recently, the central leading comrades have also repeatedly emphasized accelerating the project of returning farmland to forests and grasslands, restoring the vegetation on the Loess Plateau and improving ecological conditions. However, how to restore and rebuild the vegetation on the Loess Plateau deserves careful consideration and research. Both protection and restoration have given the past some time a misunderstanding about the “dense forests” of vegetation in the historical period of the Loess Plateau. Some historical geographers proposed that the ancient plateau of the Loess Plateau was the forest and forest grassland environment according to the related records and the primary and secondary forest remnants in the present Loess Plateau. Some people have drawn forest coverage