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《中国农村水电及电气化信息》编辑部 《中国水能及电气化》2004,(3):4-5
经组织专家调查评议,2003年全国农村水电行业11件大事如下:
一、党中央、国务院重视农村水电,部署启动小水电代燃料建设
中共中央中发[2003]3号文件要求对农村水电等农村中小型基础设施扩大投资规模,充实建设内容.同时部署启动小水电代燃料建设.…… 相似文献
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许江 《中国水能及电气化》2003,(12):13-14
<中共中央、国务院关于做好农业和农村工作的意见>(中发[2003]3号)文件再一次强调要加大农村水电等中小型基础设施的投资规模,充实建设内容,同时决定今年启动小水电代燃料生态保护工程试点.即将启动的小水电代燃料生态保护工程,涉及近3亿人口、350万平方公里的范围,要通过18年的建设,总投资1270亿,完成水电装机2404万千瓦,可以说,这是水电市场一个新的巨大商机. 相似文献
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[本刊讯]2003年12月26日,国务院副总理回良玉对全国小水电代燃料工程启动作出重要批示:"发展农村水电,实施小水电代燃料,是改善农民生活条件、推进农村小康建设的富民工程和德政之举,是巩固退耕还林成果、保护生态环境的重要举措. 相似文献
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陈雷 《中国水能及电气化》2012,(6):1
2011年,各级水利部门认真贯彻中央关于农村水电工作的方针政策,全面落实部党组部署,扎实开展“民生水电、平安水电、绿色水电、和谐水电”建设,增效扩容工作取得新突破,“十二五”水电新农村电气化建设全面启动,小水电代燃料建设规模持续扩大,农村水能资源管理有序推进, 相似文献
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夏建军 《中国水能及电气化》2003,(11):19-20
2002年12月25日,国务院公布了<退耕还林条例>,强调制定退耕还林规划时,应当考虑退耕农民长期的生计需要,根据实际情况加强沼气、小水电、太阳能、风能等农村能源建设,解决退耕还林者对能源的需求.2003年1月,<中共中央、国务院关于做好农业和农村工作的意见>(中发[2003]3号)要求加大对农村水电的投资规模,启动小水电代燃料生态保护工程试点.水利部把小水电代燃料生态保护工程试点作为今年的三大亮点工程之一. 相似文献
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2011年,农村水电行业认真贯彻落实中央1号文件和中央水利工作会议精神,按照水利部党组的部署,全面启动水电新农村电气化县建设,稳步推进小水电代燃料生态保护工程,积极开展农村水电增效扩容改造试点,大力加强农村水电安全监管,努力引导农村水能资源科学、合理、有序开发,农村水电继续保持平稳发展。 相似文献
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胡恒洋 《中国水能及电气化》2009,(9):13-14
各位领导,同志们: 很高兴参加这次会议,谨代表国家发展改革委农村经济司,对会议的召开表示衷心祝贺!今年4月份,水利部刚刚在杭州召开了全国农村水电工作会议,对今后农村水电工作进行了全面部署.今天又在长白县专门召开全国小水电代燃料工程建设现场会,现场观摩和交流小水电代燃料工程的实施情况,充分反映了水利部对小水电代燃料工程项目建设管理工作的高度重视.这次会议,将进一步推动各地更加扎实地实施好小水电代燃料工程. 相似文献
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对嘉兴地区主要给水厂近年来应用立体弹性填料、LT型悬浮球填料、YS型悬浮填料、卵石填料等的生物预处理工艺从填料及配套设施、工艺运行参数、运行效果、成本等方面进行了比较.认为弹性填料生物预处理更适用于低浊(50 NTU以下)、低氨氮(1.5 mg/L以下)原水,LT型悬浮球填料生物预处理适用于低中浊(100 NTU以下)、低中氨氮(2.5 mg/L以下)原水,YS型悬浮填料生物预处理及"SAF"滤池对低浊、中高氨氮(2.5 mg/L以上)原水有较好的适应性.最后探讨了弹性填料存在的短流、积泥,悬浮填料存在的部分填料流化不均匀,富氧的生物工艺单元内水生动物泛滥等问题. 相似文献
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Changes in nutrient levels in some Eastern European rivers in response to large-scale changes in agriculture. 总被引:3,自引:0,他引:3
P St?lnacke S M Vandsemb A Vassiljev A Grimvall G Jolankai 《Water science and technology》2004,49(3):29-36
Since the late 1980s, the use of commercial fertilisers in most Eastern European countries has decreased at an unprecedented rate. We examined the impact of this dramatic reduction in agricultural inputs on concentrations of nutrients in four rivers in Eastern Europe: the Emajogi and Ohnejogi (Estonia), the Daugava (Latvia), and the Tisza (Hungary). Time series of nitrate (NO3-N) and phosphate (PO4-P) concentrations and data on runoff were selected to represent catchments with substantial areas of agricultural land and available time series of sufficient length and frequency. The study period was 1987-1998. We detected downward trends in nitrate-N and phosphate-P in only two of the four rivers. Our results imply that the response to the extensive decrease in agricultural intensity since the late 1980s has been slow and limited in many rivers. Corresponding results in the literature are inconclusive and comprise several examples of both decreasing and non-decreasing nutrient concentrations. Our findings, along with similar data from other studies, indicate that large cuts in nutrient inputs do not necessarily induce an immediate response, particularly in medium-sized and large catchment areas. Moreover, the difference we noted between nitrogen and phosphorus suggests that factors other than reduced fertiliser application influenced the inertia of the water quality response. 相似文献
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深圳河支流新洲河属雨源型河流,因污染而采取全线截排污水整治.在上游河道内利用生物飘带技术处理低浓度污水,处理达标后,作为河流生态水源.在中游将截排污水引入自然循环方式污水处理系统,处理达标后作为河道补水.下游利用射流清淤配合利用天文大潮进行水体交换,达到消除黑臭水体,维持河道水景观的目的.介绍新洲河水环境综合整治采用的几项关键技术的设计原理及应用效果. 相似文献
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对长江、珠江等河口及其近海水域缺氧现象与影响因素进行研究,结果表明,主要分布于长江与珠江河口及其邻近海域的缺氧现象,夏季(6—8月)达到最盛,秋冬季消失;长江口的缺氧区域主要位于30.75°N~32°N,122.5°E~123.25°E附近海域,具有南北2个缺氧中心;珠江口缺氧程度相对较轻,缺氧区域主要在广州黄埔区河段至虎门水域和伶仃洋;辽河、钱塘江、海河等河口区域也时而出现零星的缺氧现象;水体缺氧受控于多项环境要素,物理层化作用是缺氧产生的最初诱因之一,陆源污染物的分解则是重要的耗氧负荷;各河口区特征各异,潮汐、洋流、营养盐、叶绿素a等要素对缺氧区的范围、程度和持续时间影响程度不一。 相似文献
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李广杰 《水科学与工程技术》2001,(5):7-8
洋河水库是我省重点病险库之一,1998年12月实施除险加固工程。工程建设过程中在科研、设计、施工及管理等方面取得了可喜的成果。通过研究分析,因地制宜地选择了天然建筑材料,合理确定了施工方案,有效保证了施工质量,节约了工程投资。 相似文献
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Ecological river engineering can be defined as the design and implementation of river works and river restoration works for the benefit of human society. It also guarantees the sustainable ecological functions of a river, such as its habitats and self-purification of its water. It is currently in the beginning stages in Korea, utilizing scientific knowledge on the processes of aquatic ecosystem degeneration and a methodology for solving the ecological problems in artificially altered rivers currently under development. The changes in river management and work practices in Korea may be best explained with a chronologically progressing sequence of ‘Natural’, ‘Disaster-prevention’, ‘Occupied’, ‘Park’, and ‘Close-to-nature’ rivers. Since the 1960s, the focus on river management and work has shifted from flood control only, to both flood control and riverine habitat conservation and restoration. Five research topics have been selected for this article, and the progress of each research area is briefly described with a representative picture in each topic. They are as follows: (1) flow resistance due to vegetation, (2) environmental flow, (3) floodplain vegetation modeling, (4) small dam removal, and (5) river restoration. For the future prospects of research on ecological river engineering in Korea, a necessity of further research on floodplain vegetation recruitment and succession, which can explain the so-called ‘white river’ and ‘green river’, is underlined, among others. Finally, two ongoing large research programs on river ecosystem restoration, of which are sponsored by the Government of Korea, are briefly introduced, followed by the introduction of a near-prototype experiment facility recently completed mainly for research on ecological river engineering. 相似文献
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介绍了映秀湾水力发电总厂结合季节性安全大检查开展安全性评价的过程,提出存在的主要问题及采取的对策措施,为安全性评价结合季节性安全大检查开展作了实践性探讨。 相似文献