【摘要】 本文研究了九龙江河口高等植物分布规律。九龙江河口共有高等植物183种,隶属141属,58科。其中非喜盐植物有155种,随机分布于两岸低盐坡面喜盐植物28种,沿上游至可口滩坡分布,种类递增。按分布界限,喜盐植物可分为河口低盐、中高盐、高盐和河口广盐四个生态类群。从垂直分布看,从沿岸到低潮带种类递减,其组成差异也较大。这些研究结果可为今后河口滩坡区域利用提供参考。更多还原

【Abstract】 This paper deals with the higher plants distributing along the banks and beaches of Jiulong River Estuary. 183 species of higher plants belonging to : 141 genera in 58 families were collected and identified. Among them, 155 species are halophobic plants, they distribute widely beyond the tidal line of the banks in accordance with their habitude and soil condition. The other species, 28 in total, can be classified as halophilic plants, they distribute along the beaches of the river estuary in respondence to the salinity of the tidal water and substratum. Halophilic plants in Jiulong River Estuary may be divided into four ecological communities, namely: (l)Cyperus malaccensis var. brevifolius+Arundo donax community, in lower saline area; (2)Suaeda austra-lis+Limonium sinense community, in brackish beach; (3)Pandanus tectorius -Oenothera littoralis community, in saline beach, and(4)Kandelia candel+Ae giceras corniculata-Ipomoea pes-caprae+Tetragonia tetragonioides community, in various localities. Distribution of plant species changes conspicuously in different beach slopes (See figure 1).更多还原