摘要
海草床是生产力和生物多样性最高的典型海洋生态系统之一,目前全球海草床呈现退化趋势,自然干扰和人类活动的负面影响是其退化原因,以后者为主。海草退化的生理生态机制主要是光合作用速率、光合色素荧光强度和含量、酶活性等生理生态指标在胁迫(高温、光照、盐度、污染物等)下发生显著变化。海草床监测和保护计划已经在局部区域取得成效,使部分海草床得到恢复。中国的海草床恢复研究重点应放在生物多样性保护、海草移植和海草床生态系统服务价值评估。
Seagrass bed is one of the coastal wetland ecosystems with the highest productivity and biodiversity,and experiencing degradation worldwide.Natural disturbance and anthropogenic impact are the causes for the degradation,and anthropogenic impact is the main one.Significant changes in the photosynthesis rate,photosynthetic pigments concentration,ratio of chlorophyll to carotenoid pigment,and enzyme activities are observed under stresses of heat,elevated light level,water salinity,and chemical pollutants,which are the physioecological mechanisms of seagrass degradation.Seagrass monitoring and protection programs have led to the recovery of some seagrass beds.Biodiversity maintenance,seagrass transplantation,and ecosystem services valuation
出处
《生态学杂志》
CAS
CSCD
北大核心
2009年第12期2613-2618,共6页
Chinese Journal of Ecology
基金
国家海洋局青年海洋科技基金资助项目(2008131)
关键词
海草床
退化
扰动
恢复
seagrass bed
degradation
disturbance
restoration
