| 环渤海地区现代海蚀机制、危害及对策 |
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| 关键词:coast erosions artificial influences aridity river-netting |
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| Mechanism and Harmfulness of the Present Sea Erosions and Countermeasures in the Bohai Sea Region |
| Observations in the recent years indicate the exacerbation of sea erosions along the coast of Bohai Sea beach narrowing, shoals and marshes shrinking and disappearing, shoreline-sentry-post subemerging coast village with drawing and littoral rocads undercut-ting, etc. Coastal residents are being threatened by the sea.
Albeit immediate cause of such coastal erosions are mainly resulted in anthropogenic forcing (constructing sluices and reservoirs, dingging sands and destroying ridges/dues along the shoreline), our investigations unravel that a primordial reason is the sustained aridity in north China. Therefore, proper countermeasures should include: (1) Economi-zing on water;(2)Purifying sewage; (3)Recycling industrial water;(4)Freshening and extending seawater use;(5) Replenishing groundwater; (6)Enhancing artificial precipita-tion; (7)Multi-oriented canalling and dispatching water; (8)Remaking the Huanghe (Yellow)River gradually connecting the River with the other big ones to make a nation-wide network. Thus, the huanghe River will behave as multi-sources, multi-tributaries and braid-tail-channel in order to effectively regulate drought and waterlogging and provi-ding enough water to the coastal region. Only by such comprehensive endeavours the exis-ting reservoirs would be gradually cancelled and great number of sand may input again into the sea to offset the coastal erosions. |
| Li Fenglin.1996.Mechanism and Harmfulness of the Present Sea Erosions and Countermeasures in the Bohai Sea Region[J].Acta Geoscientica Sinica,17(z1):215-221. |
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