唐山沿海地区海水入侵及防治措施

唐山沿海及近浅海域地处环渤海中枢地带，区位条件优越，有优良的深水港址、丰富的土地资源、油气资源、地热资源、海水资源和海洋生物资源，是环渤海产业经济带，是京津唐经济核心区重．量开发建设地区之一。但该区淡水资源缺乏，地质环境脆弱，受自然和人为因素影响，海水入侵越来越严重，侵染面积不断向北推移，该区有成水区面积已超过3100km^2，咸水底界埋藏深度有些地区已经超过80m。海水入侵已成为重大环境问题，直接影响沿海地区经济发展。

THE SEAWATER INTRUSION AND THE PREVENTION MEASURES IN TANGSHAN COASTAL AREA

The Tangshan coast and the near shallow sea area are situated at the surrounding Bohai Sea center region, with the superior position condition such as the fine deepwater port site, the rich land, oil-gas, geothermal, sea water and marine llfe resources, which is the surrounding Bohai Sea industry economical zone and one of the key development and construct areas of the Beijing- Tianjin-Tangshan economical core area, But the fresh water resources is lack in this area, the geological environment is frail too. Affected by nature and human factors, the sea water invasion is more and more serious, and the invading area is developing unceasingly to the north. The salty water district area is up to 3 100 km^2 , the burial depth of salty water has already surpassed 80 m in some areas. The sea water invasion has become a serious environment problem, which directly influences the economy development of coastal area.