1998年长江洪灾成因和防洪对策初探

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英文篇名：1998年长江洪灾成因和防洪对策初探 中文刊名：天津职业大学学报 作者：顾剑华 中文关键词：长江 ; 洪灾 ; 对策 出版日期：1999-02-15 机构：天津职业大学 年：1999 期：01 出版单位：天津职业大学学报

摘要

根据长江洪灾、人口和森林覆盖率、湖泊面积等资料,认为1998年长江洪灾成因为:环境保护意识淡漠、管理不利,人口的迅速增长、森林储量锐减,严重的水土流失,生态系统严重破坏,而厄尔尼诺现象则起了推波助澜的作用。防洪对策为:严格控制人口,控制酸雨,以防洪水与地震同时发生,提高全民的环保意识,完善法律、法规,实行生态调查与评价,注重生物多样性;加强全流域管理,加强城镇建设。
According to the data of the disastrous floods period in Yangtze River, the population, the percentage of the forest cover, and the lake areas, we realize the causes of the huge floods in the entire Yangtze River valley in 1998 are as follows:Indifference to the environmental defence, the poor management, the rapid increase of the population, the sharp decrease of the natural forest reserves, the increasing area of soil erosion, the seriously damaged ecological system, the increasing run off.I want to make the following suggestions: Controlling the population,Preventing the acid rain, Carding against the floods and earthquakes which may affect simultaneously. Increasing people' s awareness about the importance of environmental protection. Makine laws and regulations. Carrying out the ecological preservation work.

引文

历代中国的疆域面积有增无减,因而人口的变化与之有一定的关系;随着在晋代前后及南宋时期数度政治变化,长江流域人口增幅较大,江南地区开放程度提高,使生态有所恶化。目前长江流域约有2． 2亿人。尽管所列数据采用的区域不同,但也能大致反映出人口、森林覆盖率与洪灾周期间的定性关系。
    疑为120万公顷之误,此原文献如此。