林业科学2012，Vol.48Issue(8)：39-45,7.
海桑-无瓣海桑红树林生态系统的防浪效应
Wave-Prevention Effects of Sonneratia caseolaris-S.apetala Mangrove Ecosystem
摘要
Abstract
In this paper, effect of Sonneratia caseolaris-S. apetala mangrove ecosystems on wave absorption was studied by monitoring the wave height, flow rate and weather conditions for one year (November, 2007-November, 2008). We analyzed the impact of weather conditions to wave-prevention effect of the mangrove forest, and quantitatively analyzed the wave-prevention effect of mangrove forest through the wave height and flow rate variation. Results showed that; 1 ) the average wave absorption coefficient of 30 m wide mangrove forest was 0. 12, and the largest wave absorption coefficient achieved 0. 47. During the storm the average wave absorption coefficient was 0. 18 , the largest wave absorption coefficient was 0. 33 , and the wave absorption effect increased by 38% . 2) According to the calculated formula of wave absorption, the wave absorption coefficient of 30 m wide mangrove is 0. 58 , is much greater than the measured wave absorption coefficient. 3) Under normal condition, the wave absorption effect of Sonneratia-Sonneratia apetala mangrove forests increased as wave height increased. However, when all the trees were inundated, the forest almost lost its wave absorption effect, even wave forest rear was higher than that of the forest front, indicating that forest height had important significance to wave-prevention and revetment benefits of the mangrove forest. 4) On coastal environment of tidal level wavy, different tree species and age forests formed multi-level structure, which improved comprehensive wave absorption and wave-prevention function of mangrove forests.关键词
红树林生态系统/波高/消波系数Key words
mangroves ecosystem / wave height/ wave absorption coefficient分类
农业科技引用本文复制引用
王旭,杨怀,郭胜群,周光益,廖宝文..海桑-无瓣海桑红树林生态系统的防浪效应[J].林业科学,2012,48(8):39-45,7.基金项目
“十一五”国家林业科技支撑计划专题(2009BADB2B0401) （2009BADB2B0401）
科学技术部社会公益专项(2005DIB3J137) （2005DIB3J137）
国家林业局“948”引进项目(2006-4-34) （2006-4-34）
国家自然科学基金项目(41176084) （41176084）
海南东寨港红树林生态站项目 （）
海南大学植物学重点学科(071001) （071001）
“十二”五科技支撑项目(2012BAC18B00) （2012BAC18B00）
海南大学科技基金项目(hd09xm50) （hd09xm50）
海南省教育厅高校科研项目(Hjkj2008-17). （Hjkj2008-17）
