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生态学杂志 ›› 2012, Vol. 31 ›› Issue (08): 1924-1929.

• 研究报告 • 上一篇    下一篇

无瓣海桑-海桑红树林的防风效能

杨怀1,陈仁利1,王旭2,3,4**,朱正2,周光益1,廖宝文1   

  1. 1中国林业科学院热带林业研究所, 广州 510520; 2海南大学环境与植物保护学院, 海南儋州 571737; 3海南大学热带作物种质资源保护与开发利用教育部重点实验室, 海口 570228; 4农业部儋州热带农业资源与生态环境重点野外科学观测试验站, 海南儋州 571737)
  • 出版日期:2012-08-10 发布日期:2012-08-10

Windbreak effect of Sonneratia apetala-S. caseolaris mangrove.

YANG Huai1, CHEN Ren-li1, WANG Xu2,3,4**,ZHU Zheng2,ZHOU Guang-yi1, LIAO Bao-wen1   

  1. (1Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China; 2College of Environment and Plant Protection, Hainan University, Danzhou 571737, Hainan, China; 3Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources (Hainan University), Ministry of Education, Haikou 570228, China; 4Ministry of Agriculture Danzhou Key Field Station of Observation and Research for Tropical Agricultural Resources and Environments, Danzhou 571737, Hainan, China)
  • Online:2012-08-10 Published:2012-08-10

摘要: 为了解热带风暴(台风)期间红树林的防风功能,在2007年热带风暴“范斯高”影响期间(2007年9月24日0:00—15:00)采用自动气象站对海南东寨港无瓣海桑海桑人工红树林的防风效应进行观测,结果表明:(1)各位置风速平均值大小为林后1 H(H为平均树高)<林前1H,林后风速大幅度消减;(2) 热带风暴期间防风效能为28%~68%,小于非热带风暴情况下的65%~77%,并随着风速的增大而减小;(3) 热带风暴期间,其主导风向的变化幅度为45°,当风向与红树林接近垂直时,风速消减值越大,防风效果越显著。综上,热带风暴期间无瓣海桑海桑人工红树林的防风效果显著。

关键词: 陆面模式, 根系参数, 陆气通量

Abstract: In order to understand the windbreak function of mangrove during tropical storm (typhoon), an observation with automatic weather station was conducted on the windbreak effect of Sonneratia apetalaS. caseolaris artificial mangrove in Dongzhaigang of Hainan Province, South China during the lashing period of tropical storm “Francisco” in 2007 (from 0:00 to 15:00, September 24, 2007). The mean value of the wind speed observed at various sites was lower at 1H (average tree height) distance of the forest back than at 1H distance of the forest front, and the wind speed behind the forest decreased significantly, indicating a noticeable windbreak service of the forest. The windbreak effect during the lashing period of tropical storm was 28%-68%, being less than that (65%-77%) under nontropical storm circumstances and decreased as wind speed increased. During the tropical storm, the prevailing wind direction was 45 degree. When the wind direction was nearly vertical to the forest, the damping effect on wind speed was much better. In sum, the windbreak performance of the S. apetala-S. caseolaris artificial mangrove was obvious during tropical storm.  

Key words: land surface model, root parameters, land surface flux.