摘要
１９６年６月至１９９８年６月笔者及其课题组９次上九段沙，考察调查了岛上的生物资源及其演化趋势．九段沙现有高等植物１３种，底栖无脊椎动物１９种．具开发利用价值的资源生物主要有芦苇（Ｐｈｒａｇｍｉｔｅｓａｕｓｔｒａｌｉｓ）、海三棱镳草（Ｓｃｉｒｐｕｓｍａｒｉｑｕｅｔｅｒ）、缢蛏（Ｓｉｎｏｎｏｖａｃｕｌａｃｏｎｓｔｒｉｃｔａ）、河蚬（Ｃｏｒｂｉｃｕｌａｆｌｕｍｉｎｅａ）和中华绒螯蟹（Ｅｒｉｏｃｈｅｉｒｓｉｎｅｎｓｉｓ）蟹苗．目前，九段沙生物群落正处于演替的初级阶段．
The current situation of biological resources and variational tendency on the wetland in Jiuduansha in estuary of Changjiang River was strdied.The results show that there are 11 species of higher plant and 19 species of invertebrates there.The resources organisms,with abundent,high economic value,are Phragmites australis,Scirpus Xmariquete,Sinonovacula constricta,Corbicula fluminea and Eriocheir sinensis.Now,the development of organism community in Jiuduansha is in preliminary stage.The variation of spatial distribution of biological resources on wetland reflect its development in time.With depositing and changing to land,there will be growing for latent capaity of biological resources in Jiuduansha
出处
《环境与开发》
1999年第2期1-3,10,共4页
Environment and Exploitation
基金
上海市重点学科资助项目
关键词
湿地
生物资源
变化趋势
河口
长江河口
Jiuduansha
Wetland
Biological resources
Variational tendency
