中国米草生态工程的功与过

米草生态工程在我国已经走过40年的发展历程,成为中国海岸线一道绿色长城.米草生态工程曾经发挥了显著的生态效益和经济效益,如保滩护堤、促淤造陆、改良盐土、净化水质等,同时也出现了一些负面作用,如绞杀土著物种、侵占航道、危害贝类养殖等.米草的种群爆发可能是因为富营养化、温室效应以及一些可能的人为因素.对待米草,应该科学分析与对待,在种群爆发地区进行科学防治的同时,还应充分发挥其生态与经济效益.

The advantages and disadvantages of ecological engineering of spartina in China

It has been over 40 years since plants of Spartina L being transplanted to China,and these plants have become a green great wall on some beaches of China.Plants of Spartina L have exerted remarkable zoological and economical benefits,such as protecting seacoast,creating land with silt,improving salt soil and decontaminating water etc.Contemporarily,some disadvantages also appear: such as strangling native plants,trenching on sea-route and endangering the breeding of seashells etc.In this paper,it is believed that advantages of these plants were greater than their disadvantages and their population outbreaks were probably coming from eutrophication,greenhouse effect and some artificial effects.Plants of Spartina L should be analyzed and treated scientifically,when being prevented and cured;their zoological and economical benefits should also be developed at the same time.