背景:
阅读新闻

河口海岸国际研讨会杨振怀先生讲话

[日期:2003-11-10] 来源:中国水资讯网:  作者:杨振怀 [字体: ]
中国水资讯网——水利新闻中心 http://news.cjk3d.net/

河口海岸国际研讨会上的讲话

怀

200311  中国·杭州

 

女士们、先生们、朋友们,大家好!

这次由国际泥沙研究培训中心和浙江省水利厅联合发起和召开的河口海岸国际研讨会是在我国举办的河口海岸研究领域的首次国际性学术盛会,对我国乃至世界河口的治理和研究具有重要意义。

中国以上海为龙头的长江三角洲,以香港、澳门、广州为龙头的珠江三角洲和美国赫德逊河口的纽约,密西西比河口的纽奥良,荷兰、比利时的鹿特丹、安特卫普、印度的加尔各答、埃及开罗等河口三角洲一样,都是人口密集,经济繁荣的地区,这与大江大河由此入海,江海交通便利条件有关。

以上海为龙头长江三角洲城市群,包括杭州湾,约有17个城市,人口约8394万,GDP19515亿元;以香港、澳门、广州为龙头的珠江三角洲约11个城市,人口约5056万,GDP23477亿元;以北京、天津、大连、沈阳、青岛、济南为主的环渤海城市群约24个城市,人口约22102万,GDP30312亿元。上述三大地区是中国经济增长最快,人口最密集,城镇化、工业化程度最高的地区,展望二十一世纪前期,它们今后的发展仍具巨大的潜力。上述地区社会、经济发展都与江河、河口、泥沙关系密切:

第一:广大城乡防洪、防风暴潮、防台风的安全,海岸防护和河网的抗咸、排涝和优质淡水的供给;

第二:深水航道港口的整治和维护,铁路、高速公路、跨江海的桥梁、隧道、港口、机场,和沿岸仓储设施等基础设施建设对河口泥沙的影响和整治;

第三:江河、河口和近海的水质,水环境,和水产资源、湿地等保护和滩涂和合理利用。

中国长江、黄河、珠江等大江、大河泥沙主要来自上、中游山区、丘陵的水土流失。中国每年入海江河泥沙量约20亿吨。中国江河难治,难在泥沙。水土保持与退耕还林,与河道泥沙关系密切。随着人类活动对河口地区的影响日趋严重,世界各地的河口地区不同程度的出现了径流减少、污染加剧、生态失衡等问题,同时,区域经济的发展又更加依赖河口水资源、水环境,因此,探寻河口水、沙、潮流等自然规律,加强河口治理、开发和保护的研究,因势利导,顺势而为,方可达到兴水利、除水害的目的,保障河口地区防洪御潮安全,维护河口地区的生态环境,实现河口地区经济社会的繁荣、人与自然和谐共处的可持续发展。

这次国际研讨会将交流国际、国内有关河口、泥沙好经验和科研成果,给我们提供宝贵的学习、切磋机会。真诚地希望各位专家、学者以科学的精神、积极的态度,广泛交流、建言献策,共谋人类的福祉。

最后,我谨代表中国水土保持学会向大会的召开表示祝贺,预祝大会取得圆满成功,各位专家、学者工作顺利、身体健康!

Dear friends, ladies and Gentlemen: Good morning!

ICEC2003, jointly sponsored and held by International Research and Training Center on Erosion and Sedimentation (IRTCES) and Zhejiang Provincial Department of Water Resources, is the first international academic gathering on estuary and seacoast, which is of great significance to estuary study and harnessing of China and even the world.

   As New York at the estuary of Hudson River, New Orleans at the estuary of the Mississippi, Rotterdam of the Netherlands, Antwerp of Belgium, Calcutta of India, and Cairo of Egypt, China’s Yangtze River Delta surrounds Shanghai and the Pearl River Delta surrounds Hong Kong, Macao, and Guangzhou, are also prosperous and large-populated area, which owes greatly to the convenient transportation with large rivers flowing to the sea closely.

   The Yangtze Delta city group surrounds Shanghai including the Hangzhou Bay consists of about 17 cities with a population of 83.94 million and GDP of 1951.5 billion RMB. The Pearl River Delta surrounds Hong Kong, Macao, and Guangzhou covers about 11cities with a population of 50.56 million and GDP of 2347.7 billion RMB. Round-the-Bohai Sea Belt represented by Beijing, Tianjin, Dalian, Shenyang, Qingdao, and Jinan includes about 24 cities with a population of 221.02 million and GDP of 3031.2 billion RMB. The above three regions are China's most populated area with the fasted economic increase, highest level of industrialization and urbanization. In prospect at the early stage of the 21st Century, the regions still possess large potential of development. The social and economic development of the regions has close relationship with rivers, estuary, and sediment:

First: security of cities and rural areas including flood control, wind, stream and tide prevention, typhoon defense; coast protection, salt prevention and flood drainage; high-quality freshwater supply;

Second: renovation and maintenance of deep-water navigation channel and port; influence and renovation of infrastructure construction such as railway, expressway, river or cross-the –sea bridge, tunnel, port, airport and warehouse near the river to the sediment of the estuary;

Third: water quality and water environment of rivers, estuaries and offshore area; protection of aquatic resources, wetlands; reasonable use of beach.

   Sediment of large rivers such as the Yangtze River, Yellow River and Pearl River is mainly from the soil erosion of hilly regions of the rural areas in upper and middle reaches. The sediment flowing into river and sea reaches 2 billion ton every year in China. China’s difficult river harnessing lies in sediment management. Water and soil reservation as well as restoration cultivated land to forest both have close relationship with sediment in rivers. With more and more serious influence of human activities to estuaries, there appear problems with different extent in estuaries over the world such as runoff reduction, worse pollution, and lose of ecological balance. Meanwhile, development of regional economy depends more on water resources and water environment of the estuary. Therefore, only if we pursue the natural rules of water, sediment and tide of the estuary, tighten estuary harnessing, development, protection and study, and improve the situation according to the natural trend, can we reach the goal of making use of water and getting rid of water disasters. Only by this means can we guarantee the security of estuaries with flood control and tide prevention, maintain the ecological environment of the estuary and realize the sustainable development of social economic prosperity and harmonious coexistence of people and nature.

   This international forum will provide us precious chance to exchange international or domestic experience and study fruit of estuary and sediment. For mutual benefit of humankind, I sincerely hope all the experts and scholars presented today exchange ideas and offer advice with scientific spirit and active manner.

   Last but not least, on behalf of China Water and Soil Reservation Society, I would like to wish ICEC2003 a complete success. Wish you, experts and scholars presented today all the best!

收藏 推荐 打印 | 录入:cjk3d | 阅读:
本文评论   [发表评论]   全部评论 (0)
热门评论