滨州北部贝沙堤生物多样性现状及影响因素的研究  

The Relationship Between Biological Diversity of Shell Bar in the North of Binzhou and Soil Physical and Chemical Properties

作　　者：赵艳云[1] 田家怡[2] 孙景宽[1] 胡相明[3] 

机构地区：[1]滨州学院黄河三角洲生态环境研究中心,山东滨州256603 [2]滨州学院科研处,山东滨州256603 [3]滨州学院城市与环境系,山东滨州256603

出　　处：《水土保持研究》2010年第2期136-140,共5页Research of Soil and Water Conservation

基　　金：2006年山东省自然科学基金项目"山东沿岸贝壳堤脆弱生态系统退化机理与恢复技术"(Y2006D01);滨州市2009年科学技术发展计划资助项目"无棣贝沙堤植被群落特征与多样性研究";滨州学院青年人才创新工程"滨州北部沿海贝沙堤植物多样性研究"(BZXYQNLG200724)

摘　　要：滨州无棣贝沙堤作为天然的防潮大堤,在保护人类生命财产安全以及生物多样性的孕育上发挥了重要作用,但近年来由于人类活动的加剧,贝沙堤面临着萎缩,植物多样性减少,部分物种面临灭绝,通过对滨州北部无棣贝沙堤植物多样性进行调查,分析了王子堡、大河口地区植被的物种组成和分布特点,在调查样地共发现砂引草、芦苇等20种植物和7种群落类型。通过相关分析,贝沙堤中的水溶性碳、水溶性氮对植被物种丰富度、生物多样性指数、生物量和盖度有显著性影响,而含盐量、含水量、速效钾、速效磷含量对植被群落结构没有明显影响。此外,由于人为因素的干扰,王子堡地区与大口河地区的物种分布、群落结构和生物多样性存在差异显著。由此可见,人类活动是导致生物多样性减少的一个关键因素,在今后的植被恢复工作中,应减少人为干扰。As the natural protection, the shell bar in Binzhou region played an important role in human life and property. But recently, due to human activities, the shell bar shrink with the biodiversity decreased. Based on species diversity of shell bar obtained in northern Binzhou, only 20 species as Limonium bicolor, Phragmites Australis and 7 community types were found in the quadrat. The relationship between soil fac- tors was studied and the results showed that the richness index, biodiversity index, biomass and coverage were significant affected by the content of dissolved carbon and nitrogen. However, there was little rela- tionship among the content of soil salt, water, available K, available P and plant community character. Besides, due to human activity, there was difference on species distribution, community structure, and biodiversity between in Wangzipu and Dakouhe area. It can be seen that the human ability was the pivotal factor during the process of revegetation.

关 键 词：贝沙堤 植物群落 生物多样性 

分 类 号：Q143[生物学—生态学] X171[生物学—普通生物学]