摘要
为探究红树林区集约化海鸭养殖对红树植物生长及底栖动物生存的影响,在海南东寨港集约化海鸭养殖区选取以海莲和角果木为优势种的两个调查区域,并分别对以海莲为优势种的海鸭养殖区内圈养地、圈养地外围、弃养2 a、弃养5 a和未圈养地的海莲幼苗存活率、呼吸根密度、成年植株生长状况和底栖动物以及以角果木为优势种的海鸭养殖区内离圈养地不同距离处角果木成年植株死亡率、幼苗存活率、底栖动物进行了调查。结果表明:集约化海鸭养殖阻碍了红树植物幼苗和呼吸根的更新,严重干扰了红树植物的生存,圈养地底栖动物密度和生物量显著低于其他林地。海南东寨港集约化海鸭养殖对红树林造成了显著的负面影响。
To analyze the effects of intensive domestic duck farming on mangrove plants and macrobenthos in mangrove ecosystems,this study investigated the survival rate of the seedlings,pneumatophores density,and growth status of adult Bruguiera sexangula plants,as well as the community structure of macrobenthos at sites with different farming patterns(i.e.,the captive area,outside the captive area,the captive areas that abandoned for two years,and the captive areas that abandoned for five years,) and uncaptive areas separately in the intensive domestic duck farming areas with Bruguiera sexangula as dominated mangrove species,and the survival rate of the seedlings,and the mortality rate of Ceriops tagal adult plants,as well as the community structure of macrobenthos at sites with different distance to the intensive farming areas with Ceriops tagal as dominated mangrove species in Dongzhaigang Bay,Hainan.The results showed that intensive domestic duck farming hindered the renewal of mangrove seedlings and pneumatophores,and interfered with the survival of mangrove plants seriously.Moreover,the density and biomass of macrobenthos in the intensive farming areas were significantly lower than that in the non-farming areas.This study indicated that intensive domestic duck farming in Dongzhaigang Bay has caused significant negative impacts on mangrove ecosystems.
作者
李华亮
冯尔辉
李诗川
钟才荣
祝阁
王文卿
王瑁
LI Hua-liang;FENG Er-hui;LI Shi-chuan;ZHONG Cai-rong;ZHU Ge;WANG Wen-qing;WANG Mao(The Administrative Bureau of Dongzhaigang National Nature Reserve,Haikou 570100,Hainan,China;College of the Environment&Ecology,Xiamen University,Xiamen 361102,Fujian,China)
出处
《湿地科学与管理》
2024年第1期37-40,共4页
Wetland Science & Management
基金
海南东寨港国家级自然保护区管理局项目。
关键词
红树林
集约化海鸭养殖
底栖动物
Mangrove
Intensive domestic duck farming
Macrobenthos
