许多世纪以来,人类社会和自然斗争的历史,利用自然资源的历史,证明了周围地理环境的统一性,证明了地方气候及其水体、动植物界、岩石、土壤之间存在着深刻的和多方面的联系。人类在经济活动的过程中,砍伐森林、耕作土壤、饲养家畜、建设城市、修筑道路,作用于自然,不断地破坏原有的复杂联系。不知道自然界的规律性,不知道存在于景观各因子间的联系,便不能预见:砍伐山地森林会使毗鄰的平原遭受到毁灭性的洪水的侵袭 For many centuries, the history of human society and the struggle for nature has made use of the history of natural resources to prove the unity of the surrounding geographical environment. It proves that there is a profound and profound relationship between the local climate and its water bodies, flora and fauna, rock and soil Aspects of contact. In the process of economic activities, mankind deforestation, farming soil, raising livestock, building cities, building roads, acting on nature, continue to undermine the original complex links. Without knowledge of the laws of nature, we can not foresee the existence of links among the various elements of the landscape: the deforestation of deforested plains by deforested forests