摘要
全年收集广州南沙湿地游览区人工红树林中的6龄无瓣海桑Sonneratia apetala、4龄无瓣海桑和6龄海桑S.caseolaris 3种林分的凋落物,并对凋落物量作全年变化分析,结果表明:3种林分凋落物总生物量呈现单峰的季节变化,峰值出现在8—9月,在12月至次年2月达到较低值.3种林分凋落物总生物量大小依次为6龄无瓣海桑(1 519.30 g.m-2.年-1)>6龄海桑(1 446.94 g.m-2.年-1)>4龄无瓣海桑(1 323.45 g.m-2.年-1).其中,叶、枝、花和果的凋落物生物量组成比例不一,但均以叶为主要组分,其比例超过60%;均以花所占总凋落物生物量的比例最小.
Litters from 3 stands of mangrove, i. e. , 6-year-old Sonneratia and 6-year-old S. caseolaris, were collected in the area of Nansha Wetland of Guangzhou. ld S. apetala , An analysis of annual variation in litter production showed that the total litter of the stands exhibited a seasonal change with a single peak. The highest peak appeared during August and September, and shifted to a lower level between December and February. The total litter production of the three mangrove stands was in the order of 6-year-old S. apetala （ 1 519. 30 g- m^ -2. year- 1 ） 〉 6-year-old S. caseolaris （ 1 446. 94 g. m ^-2. year- 1 ） 〉 4-year-old S. apetala （ 1 323.45 g- m^-2. year-1 ）. Although the amounts of leaf, branch, flower and fruit in composition were different, the leaf was the main component and its proportion exceeded 60% among them. The flower proportion of the total litter production was the lowest.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2011年第4期119-121,共3页
Journal of South China Agricultural University
基金
国家科技支撑计划专题项目(2009BADB2B0401)
广东省科技计划项目(2005A30402003
2006A36702003)
广州市林业与园林局项目"广州市南沙湿地环境效应监测"
海南东寨港红树林生态站项目
关键词
红树林
凋落物
无瓣海桑
海桑
广州南沙
mangrove
litter
Sonneratia apetala
Sonneratia caseolaris
Nansha of Guangzhou city
