论文部分内容阅读
沿海地带的红树林对生态和环境具有极其重要的价值.但为了发展经济,人们正无意识地破坏着红树林资源.淡水资源的过度抽取以及渔业、水产业和工业的盲目开发,人类居住区的扩张及废物排放等造成红树林资源的大面积剧减,因此,当前对红树林作用的科学认识是保护热带红树林生态系统的关键.为了确定Coringa红树林生态系统退化的原因,笔者通过在研究区野外调查和与当地居民交流获得不同土地利用类型、农作物种植成分、社区基本需求及其它可获得性的资料,分析了影响Coringa红树林生态系统的几个因素如土地利用类型,农作物种植成分的变化及其导致的生态平衡破坏;最后提出了一些解决生态经济和可持续利用红树林资源的方法.“,”In spite of the fact that the mangroves render invaluable ecological and environmental services,the people are unknowingly destroying them in the name of economic development.Sound scientific knowledge is essential to management of the reminder of tropical mangrove ecosystems,because of their extensive and rapid deforestation and extraction of fresh water,fisheries,aquaculture,industry,human settlement,waste dumping and the like.Hence,to identify some of the causes for degradation of Coringa mangrove ecosystem,the invading factors such as changed land-use practices,changes in the cropping composition of agriculture and its consequential imbalances creating acute shortage of societal basic resources like fodder,fuel wood and timber etc.,in the hinterland areas were analyzed.Information pertaining to the different land-use practices,crop composition,community basic needs and their availability was gathered from the study area through field surveys and personal communication with local people.And finally,some eco-economic and sustainable solutions were offered.