| 摘要: |
| 传统维护海堤的模式周期性地破坏红树林、红树林滩涂及光滩的沉积物,加剧台风暴潮时海堤的险情。从围垦地取土方加固海堤,堤外滩涂便于红树林的恢复和营造,在堤内挖掘形成的养殖沟可发展半咸淡水养殖。这种生态维护模式极大地增强了海堤抗台风暴潮的功能,产生的效益比传统模式的高10倍。生态维护模式的规模是恢复红树林59.24km,面积529.4hm2;营造红树林394.6km,面积3945.8hm2;养殖453.84km,面积226.92hm2。对生态养护模式建设中的一些管理问题提出建议。 |
| 关键词: 海堤 生态养护模式 红树林 效益 |
| DOI： |
| 投稿时间：1995-06-29 |
| 基金项目:国家科委"八五"攻关项目 |
|
| An Ecological Pattern of Sea Dyke Maintenance by Mangroves and Assessment of Its Benefits along Guangxi Coast |
|
Fan Hangqing
|
| (Guangxi Mangrove Research Centre, Nanzhu Road, Beihai, 536000) |
| Abstract: |
| The traditional pattern of maintenance of sea dykes periodically degraded mangrove forests, mangrove-covered and exposed tidal sediments, thus increased the damage of violent tide of typhoon to sea dykes. The soils should be obtained from the reclaimed land, and mangrove rehabilitation and afforestation can be successfuny taken on the tidal flats. Meanwhile, the shrimp ponds,formed during the land-digging to maintain the sea dykes, are favourable for blackish water aquaculture. This ecological pattern of dyke maintenance greatly increases the capability of sea dyke a. gainst typhoon, produces a benefit that as ten times as the traditional. The scales of the ecological pattern were proposed to be 59.24 km long with area of 529.4 hm2 for mangrove rehabilitation,394.6 km with 3945.8 hm2 for afforestation and 453.84 km with 226.92 hm2 for aquaculture.Some management aspects to establish the ecological pattern was suggested to the division-makers. |
| Key words: sea dyke ecological maintenance mangroves benefit |
