论文部分内容阅读
水资源是生命之源,土地资源则是人类生存之本。人类不可以没有水,人类也不可以没有立足之地,水和土地资源对于我们太重要了。上海陆域面积6340km~2,人均只有378.7m~2的生存空间,可能是全国人均土地最少的省、市;而每 km~2的 GDP 产出达7808.9万元,可能是全国土地产出率最高的省、市,可谓寸土寸金。由此可见,土地资源在上海经济、社会发展中的重要地位和作用。1 陆海变迁造就了上海这块富庶的土地上海地处河口冲积平原,大陆部分成陆始于6~7000年以前,且自西向东逐渐形成;长江口崇明、长兴、横沙三岛则成陆较晚,而且屡有变化,近代才趋
Water resources are the source of life, and land resources are the basis of human existence. Mankind can not live without water and mankind can not stand without it. Water and land resources are too important for us. The land area of 6340km ~ 2 in Shanghai and only 378.7m ~ 2 per capita in living space may be the provinces and municipalities with the least land per capita in the country. The output per km ~ 2 of GDP is up to 78.89 million yuan, which may be the national land productivity The highest province, city, can be described as costly. This shows that the land resources in Shanghai’s economic and social development in an important position and role. 1 Land and sea changes created the affluent land in Shanghai Shanghai is located in estuarine alluvial plain. Some parts of the continent began to land between 6 and 7000 years ago and gradually formed from west to east. The Chongming, Changxing and Hengsha islands in the Yangtze Estuary became Land late, but often change, the modern trend