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在人类的经济活动中,土地不仅是生产经营活动赖以进行的空间依托,而且是可以获取利润的经营对象。我国现有土地总面积960万平方公里,其中耕地约95.89万平方公里,占9.99％;平原约115万平方公里,占11.98％;海拔500米以下的高产区为241.7万平方公里,占25.18％;城市、工矿、交通运输项目用地67.0万平方公里,占10％。随着我国工业化水平不断提高,相应对我国运输化水平提出了较高要求,促使了交通运输项目建设的迅速发展,目前我国铁
In the economic activities of mankind, land is not only the space backing on which the production and business activities are carried out, but also the target of business that can make profits. China's total land area of 9.6 million square kilometers, of which about 958,900 square kilometers of cultivated land, accounting for 9.99%; plain about 1.15 million square kilometers, accounting for 11.98%; elevation of 500 meters below the high-yield area of 2417000 square kilometers, accounting for 25.18% ; Cities, mining, transportation projects 670,000 square kilometers of land, accounting for 10%. With the continuous improvement of the level of industrialization in our country, correspondingly put forward higher requirements on the level of transportation in our country, prompting the rapid development of the construction of transportation projects. At present,