| 秦岭南北地区人口增长对水资源影响的比较研究 |
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| 引用本文： | 刘登伟,封志明,延军平.秦岭南北地区人口增长对水资源影响的比较研究[J].干旱区资源与环境,2005,19(Z1):147-151. |
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| 作者姓名： | 刘登伟 封志明 延军平 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京,100101;中国科学院研究生院,北京,100039
2. 陕西师范大学旅游与环境学院,西安,710062 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCX3-SW-333). |
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| 摘 要： | 采用近30年来(1970-2000)关中地区33个县市、陕南地区26个县市气象观测数据及研究区内各主要县市的近50年来(1949-2000)人口数据,对比分析了人口增长对秦岭南北地区水资源的影响。分析表明近50年来,关中地区每年平均增长人口27.1万人,陕南地区每年增长人口8.9万人,关中地区人口总数和增长速率分别是陕南地区的2倍和3.5倍;关中地区和陕南地区的人均水资源量变化都呈现出下降的趋势,关中地区的下降速率为每年2.1%,陕南地区下降的速率为1.4%;从时间上看,关中地区90年代与60年代相比,人均水资源量减少了46.5%,陕南地区90年代与60年代相比,人均水资源量减少了16.5%;从空间上看,关中地区主要缺水区域位于渭河的中下游,大部分地区人均水资源量在1,400m3以下,而陕南地区只有汉中水资源受人类影响较大人均水资源量在1,400m3以下,其他县市水资源仍然很丰富,人均水资源量在2,800m3以上。由于人口增长迅速,关中地区的水资源较陕南地区在时间和空间上都存在严重的缺乏,前景不容乐观。因此,从人口和水资源两方面考虑陕南地区是支持关中经济发展的重要后方。
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| 关 键 词： | 秦岭南北 人口增长 水资源 |
| 文章编号： | 1003-7578(2005)07-147-05 |
| 修稿时间： | 2005年8月25日 |
Effects of the Rapid Population Increase on the Water Resources of the Northe and the South of Qinling Mountains |
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| LIU Deng-wei,FENG Zhi-ming,YAN Jun-ping.Effects of the Rapid Population Increase on the Water Resources of the Northe and the South of Qinling Mountains[J].Journal of Arid Land Resources and Environment,2005,19(Z1):147-151. |
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| Authors: | LIU Deng-wei FENG Zhi-ming YAN Jun-ping |
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| Institution: | LIU Deng-wei~ |
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| Abstract: | At present,the rapid population increase has different effects on the water resources of the North and South of Qinling mountains.In this article both the precipitation data of every cities and counties of the both sides of Qinling Mountain in nearly 30 years(1970-2000) and the population data(1949-2000) were analyzed,the problems how differentlythe population increase affect the water resource in Northand South of Qinling Mountains were discussed.It was showed that the population in Guanzhong area increased 270,970 every year,and in Shannan area the population increased 80,853 every year.The water resources per capita decreased in recent years in both sides of the Qinling Mountains,and the decreasing rate was 2.1% in Guanzhong and the decreasing rate was 1.4% in Shannan.The water resources per capita in Guanzhong decreased 46.5% comparing that in 1990s with that in 1960s,and in Shannan it had decreased 16.5%.The areas most lacking water were situated nearby middle andlower reaches of Hanjiang river in Guanzhong.In these areas the water resources per capita was lower than 1,400m~(3),however it was more than 2,800 m~(3)in most cities and counties in Shannan except Hanzhong which it was lower than 1,400 m~(3).Because of the rapid increase of population,the water resources become more shorter than before,and the future isn't very good. |
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| Keywords: | The North and South of Qinling Mountain increase of population water resources |
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