2007年三峡水库运行调度分析

2007年,是三峡工程初期运行期的第一年,也是工程综合效益全面发挥的第一年。枯期,长江中下游遭遇多年未遇的枯水位,为保障通航安全,利用三峡水库对航运实施流量补偿调度,满足了枯季通航水位要求;汛期,为缓解长江中下游防洪压力,根据长江防总防洪凋度指令,三峡开发总公司对4次较大洪水实施了防洪凋度,为长江中下游的防洪安全做出了重要贡献。     

Benefit evaluation of the Three-Gorges Reservoir migration by an assessment index model based on analytic hierarchy process

An assessment index model was established to evaulate the benefit of the Three-Gorges Reservoir migration through the analytical hierarchy process. Totally 43 indicators were selected to assess the impact of migration on the economic, social and ecological environmental aspects of the migration communities, with the data of the indicators of the years 1992, 1998, 2002 which represented the period of premigration, the end of the first phase migration and the end of the second phase migration, respectively. The evaluation matrix is sufficiently consistent, with a consistency ratio CR equal to 0.086 3. The assessment turned out a benefit value for the economic subsystem in the year 2004 larger than triple the value in the year 1992, indicating a remarkable economic growth in the Reservoir area. The constantly increasing value for the social subsystem reflects the stable social situations. There is a slight decline in the assessment outcome of the ecological subsystem for the year 1998, which implies enviromental conservation was given insufficient importance during that period. On the whole, the implementation of the migration project is favorable to the Reservoir region, as confirmed by the stably increasing overall evaluation value from 42.22% in 1992 to 68.81% in 2002. However, there is still much room to improve from the status quo to the target criteria.     

关于“建设以三峡水利枢纽为中心的智能电网连接的超巨型能源体”的建议

近来研读十七届五中全会和中央经济工作会议各项决议、讲话等文件,深感我国未来经济建设的发展,必须"加快转变经济发展方式",必须"努力抢占未来发展制高点",必须"加强改革顶层设计",必须从现在起立即着手思考、研究、安排一些影响百年大计的重大工程项目,必须"谋而后动"。我们特此建议:以三峡水利枢纽为中心,在三峡上游和金沙江下游地区修建超大型抽水蓄能电站群,实质性地有效优化、利用西南和西北地区巨量的太阳能和风能,     

三峡水库控藻渔业模式的构建与应用

三峡水库2003年建坝蓄水成库以来,最大水面面积扩大到1084m^2,总库容增加到393亿m^3,水库区域的水量增加了约200亿m^3,水域生态系统也从河流生态系统迅速转变为深水河道型水库生态系统。受三峡蓄水引起的水文情势改变影响,水库范围内的全部支流水域从物理形态、化学结构和生态功能均发生了剧变,回水顶托作用使得支流的中下游彻底从河流形态快速地向库湾形态演变。     

重庆遭灾怪三峡?

旱灾引出"木桶理论" 2006年8月,重庆发生了百年一遇的特大旱灾.正当重庆市民在高温酷暑中煎熬之时,一条题为"三峡水库蓄水导致川渝大旱、重庆高温"的消息在互联网上被广泛转载,将发生在四川盆地的旱灾与刚刚完成的三峡水库蓄水联系了起来,一时间,这种观点造成了很大的影响.有人甚至提出了一个叫做"木桶效应"的理论,认为四川盆地就好比一个大木桶,最短的一根木条就在三峡的位置,这个自然形成的狭长缺口成为向盆地输送水气的关键.而三峡大坝建成后,使自然地貌遭到人为改变,短的木条被接长,水气循环的主要通道被阻挡,导致桶内气温失衡,伏旱高热天气随之而来.     

Water Environment Pollution in Three—Gorge Reservoir Area and Treatment Technology

After the erecgtion of Three-Gorge Reservoir,The Water Environment in the reservoir area will be turned into water dobies like laker,and the self-clarification ability of water will also be moch slower than ever,Now,the quality of water in most segments in upper reaches of Yangtze River cannot meet the requiremets of I-II class Environment Quality Standard (GHZB1-1999),In Yangtze River,Jialing River and Wujiang River,the mian indexes such as colon bacillus,nonionic ammonia,chemical oxygen demand(COD),petroleum,phenol,total phosphorus(TP),heavy metal,etc.,have exceeded the standard limits.The water bodies of the reservoir area are facing serious risk of eutrophicatioinm.To solve that problem.A countermeasure of multi-spot diverted treatment and separate discharge is recommended,for doing this,lots of smallscale wastemwate treatment facilities employing updated activated sludge treatment technologies are to be set up.Up to now,a number of sewage treatment technologies to control eutrophication of water have been developed,which include processes of sequencing batch activated sludge(SBR),absorbing bio-degradation (AB),oxidation channel,package intermittent aeration system(PIAS),intermittent cylce extended aeration system(ICEAS),UNITANK and so on ,The Efective one to be applied in the reservoir area should convey the requirements of ecological agriculture,forestry and urban planning ,and be accompanied by legal support for appropriate exploitation of natural resources.     

绿化长江·重庆行动海内外征联大赛启事

“绿化长江·重庆行动”,是由全国绿化委员会、国家林业局、国务院三峡办、重庆市人民政府、全国政协人资环委和中国绿化基金会联合发起的一项重要环境系统工程,是功在当代,利在千秋,造福子孙的伟大事业。随着长江流域经济社会快速发展和三峡水库的建成,加快长江流域生态治理,特别是加快三峡库区绿化,任务艰巨繁重,意义重大深远。     

三峡工程对生态和环境的影响

前一段时间,西南大旱,灾情严重。东南亚一些国家也藉此认为中国在上游河道建设水坝,引起这些下游国家缺水;西南大旱也是过渡建设水坝,造成当地生态环境和气候变化反常所造成的。那么,修建大坝这类大型工程到底会对生态和环境造成哪些影响呢?是不是只会造成恶劣的破坏呢?     

1长江干线泸州纳溪至重庆娄溪沟航道建设工程施工期环境监测评价

为满足万吨级船按照《长江三峡水利枢纽初步设计报告》的要求,纳西至娄溪沟河段在175m蓄水后要求通航万吨级船队.根据前期大量的研究成果,该河段间部分河段存在航道尺度不足、峡谷河段急流碍航及部分礁石碍航等问题,需逐步进行治理.在本次炸礁工程中,礁石炸除后对生活、生产作业产生影响的10处碍航礁石进行炸礁整治工程进行了施工期环境监测.     

现南水北调中线“补偿工程”的不合理性及其取水口选址研究

随着汉江流域用水量持续增长,南水北调中线工程取水于丹江口水库,水源将没有可靠保证,因此不得不规划由三峡水库取水、向丹江口水库补水的“补偿工程”。也就量说,所谓“中线自流调水工程”实质将转化辚“中线提扬调水工程”。众多事实说明,同时提扬调水工程,取水口选在湖北长湖比选在三峡水库,要更加经济、更加优越。