摘要
在典型草型富营养化湖泊—内蒙古乌梁素海设立试验研究基地 ,进行较大规模生态恢复工程试验 ,研究表明 ,实施沉水植物收割工程与芦苇园田化生态管理工程是草型富营养化湖泊生态恢复的两项重要技术措施。以机械化方式收割沉水植物能够削减湖泊内源性营养物负荷的积累和释放 ,减少二次污染 ,抑制生物填平作用 ,改善水体环境 ;采用机械化技术控制芦苇蔓延、打开芦苇区通风道和通水道 ,可以重建湖泊绿色自然景观 ,提高全湖水流循环速度。有计划、合理地运用生态恢复工程不仅可以减轻草型湖泊所面临的巨大生态压力 ,延缓沼泽化演化进程 ,而且可以在实施生态工程的同时开发利用水生植物资源 ,使湖泊环境与湿地综合利用得到持续发展。
An experimental plot was established at Lake Wuliangsuhai in Inner Mongolia, a typical plant eutrophic lake, where a series of ecological environment restoration experiments were carried out on a large scale. The results indicated that the implementation of the submerged plant harvesting and the garden-style ecological management of the reed was an important measure to restore the ecological environment of the plant eutrophic lake. To harvest submerged plant by mechanical means would cut down the accumulation and release of inner nutrient loads, reduce re-pollution, restrict the deposition effect of living things and meliorate the environment of water body in the lake. To control the process of reed spread by mechanization technology and open up the ventilation channel and waterway in the reed growing area may reconstruct a green natural landscape of the lake and speed up the water circulation in the lake. Reasonable adoption of the ecological restoration engineering technology in a planned way will not only lessen the burden of the lake from ecological evolution and postpone the process of marshland formation, but also exploit the aquatic plant resources and make the comprehensive utilization of the environment and wetland of the lake for sustainable development.
出处
《生态学杂志》
CAS
CSCD
北大核心
2003年第6期57-62,共6页
Chinese Journal of Ecology
基金
国家自然科学基金 ( 3 0 160 0 2 2 )
国家科技成果重点推广计划资助项目 ( 2 0 0 2EC0 0 0 12 8)
关键词
乌梁素海
草型湖泊
富营养化
生态恢复
工程技术
Lake Wuliangsuhai, plant type lake, eutrophication, ecological restoration, engineering technology
