海桑

研究了深圳福田红树林无瓣海桑+海桑群落的N、P、K元素的累积和循环。

The accumulation , distribution and cycle of N , P and K in S. apetala + S.

结果表明，海桑种群个体高度集中分布在6～14m；

The results showed that the heights of individuals of the population ranged mostly from 6 ~ 14 m.

通过自然扩散形成的海桑种群趋于集群分布。

The population formed by natural regeneration had a clumped distribution pattern .

随盐度的提高，无瓣海桑幼苗成活率下降；

With the increase of salinity , the survival rate of seedlings decreased .

经比对，无瓣海桑人工林的生态影响较14年生秋茄人工林的更为显著。

S.apetala plantation has greater ecological effects compared with Kandelia candel plantation ( 14-year old ) .

为引种无瓣海桑的生态风险评估以及制定合理的管理模式提供了依据。

It is expected to supply theory basis for its reasonable management mode and ecological risk assessment .

种群遗传多样性与环境因子间的相关性分析表明：海桑种群遗传多样性水平与各环境因子间相关性均不显著。

The correlation analysis showed that there was no significant relation between population genetic diversity level and environmental factors .

与此同时，渔护署的外判承办商亦在泥滩进行清除海桑的工作。

At the same time , AFCD 's contractors are working on the Sonneratia tree removal work on the mudflat .

分析海桑属花粉在晚第四纪地层中的分布，对深入研究南海海区的物质来源、古环境和古气候等有着重要的意义。

The environmental and climatic fluctuation of the late Quaternary in the South China Sea was explored by analysing the distribution of Sonneratia pollen .

海桑人工种群已经出现某种程度的自然更新和扩散，这将有利于增加海桑人工种群的结构复杂性和稳定性。

Natural regeneration and dispersal of artificial S.caseolaris population had more or less occurred , which may increase the structural complexity and stability of the artificial population .

2008年寒害使珠海市淇澳岛红树林遭受重大损失，红树林湿地中的海桑几乎全部死亡；

Mangroves on Qi'ao Island had suffered heavy losses due to the chilling injury in2008 , and almost all the Sonneratia caseolaris trees were frozen to death .

盐度对无瓣海桑幼苗长叶数、茎长、植株鲜重、主根长、根系鲜重等方面起抑制作用；

The number of leaves , the length of stem and root , the fresh weight of shoot and root system were inhibited with the increase of salinity .

本文比较系统地综述了海南海桑的生物学特性，包括其外部形态、内部结构、地理分布、生态学和群落特性以及海南海桑的系统位置。

In this paper , a broad literature has been reviewed concerning its morphology , structure , geographic distribution , ecological and community characteristics , and systematic position .

阐述了杯萼海桑育苗中的采种、整地、苗圃管理，病虫害防治等过程中的技术要点。

The author discussed the main techniques of seeds collection , soil preparation , nursery management , and control of pests and diseases during the seedling cultivation of Sonneratia alba .

海桑种群冠幅结构受密度、个体对空间竞争等的影响较大，冠幅直径与种群密度呈现较高程度的负相关。

The crown structure of the population was influenced largely by density , competition of individuals for space etc. , and crown diameter was largely negatively correlated with population density . S.

海桑更新的状况与所接受的光照、种子散播地的隐蔽程度、潮水淹浸深度、潮汐动力作用、人为活动的影响、水禽的取食活动及边缘效应等存在相关关系。

The concrete settlement sites and numbers of regenerated seedlings were closely related to the received light , closeness of sites where seeds were dispersed , deepness of tidal water , tidal hydrodynamics , human activities , feeding activities of water birds and edge effect as well .