劉廣學 磨志鋒 薛楊 王小燕 宿少鋒 林之盼 薛超文



摘要調查了文昌清瀾自然保護區3個紅樹植物群落,并就保護和恢復文昌清瀾自然保護區紅樹林提出了建議。調查結果顯示,文昌頭苑3個樣地紅樹植物群落共有植物種6科8屬11種,其中第1個紅樹植物優勢種為木果楝、尖瓣海蓮、欖李和海蓮;第2個紅樹植物優勢種為欖李和軟葉海桑;第3個紅樹植物優勢種為海蓮和欖李。3個樣地紅樹林植物群落物種組成相對簡單,植物數量較多,發育較好,發育成復層群落,群落覆蓋度在60%~85%。
關鍵詞文昌頭苑;紅樹林;群落特征;調查
中圖分類號S718.54文獻標識碼
A文章編號0517-6611(2017)12-0005-02
Abstract We investigated characteristics of three main mangroves plant community in Touyuan Town of Wenchang,and then put forward some suggestions for protecting and restoring the mangroves in Wenchang Qinglan Nature Reserve.Investigation results showed as followed:total 11 species,8 genera of 6 families were found in the mangrove community of Touyuan Town of Wenchang.Among them,the dominant species of the first mangrove species were Xylocarpus granatum Koenig,B.sexangula(Lour.)var.rhynchopetala Ko,Bruguiera sexangula and Lumnifzera racemosa Willd; the second mangrove dominant species were Lumnifzera racemosa Willd and Sonnerntia ovata;the third mangrove dominant species were Bruguiera sexangula and Lumnifzera racemosa Willd.The species composition of the mangrove plant community was relatively simple,and the number of plants was much better and the development was better,and the community coverage was between 60% and 85%.
Key wordsTouyuan Town of Wenchang;The mangroves;Characteristics of community;Investigation
文昌清瀾自然保護區是1981年依據廣東省海南行政區公署海行[1981]151號文件建立的[1],是我國建立的第2個紅樹林自然保護區。文昌清瀾自然保護區總面積1 130 hm2[2],紅樹林面積1 223 hm2,灘涂和水域面積1 725 hm2[3],紅樹林資源最多,樹種種類較多,是紅樹林植物群落比較完整的自然保護區之一。目前人們對文昌清瀾自然保護區紅樹林植物種類和群落類型有所了解,但對于紅樹林植物群落特征了解不夠。筆者對文昌清瀾自然保護區3個紅樹植物群落進行了調查與分析,并就保護和恢復文昌清瀾自然保護區紅樹林提出了建議。
1調查地概況與研究方法
1.1調查地概況文昌頭苑位于海南省東北部的文昌市,地處110°30′E,19°21′N,是文昌市八門灣紅樹林重要的分布〖CM(25〗區域,這里的紅樹林生長良好,連片較大,結構原始典型,保存較完整,特別是以海蓮、海桑為主的連片混合林較為罕見,特有的海南海桑十分珍貴。……