黄河三角洲湿地水盐影响下灌草群落的物种多样性研究  

Influence of water and salt on species diversity of shrub-herb communities in the Yellow River Delta wetland

作　　者：刘加珍[1] 李卫卫[1] 陈永金[1] 刘亚琦[1] 徐梦辰[1] 王成祥[1] 

机构地区：[1]聊城大学环境与规划学院,山东聊城252059

出　　处：《生态科学》2015年第5期135-141,共7页Ecological Science

基　　金：国家自然科学基金(40901276);山东省优秀中青年科学家科研奖励基金(2011BSB01256);聊城大学创新项目(SF2013133)

摘　　要：采用样地调查方法,研究了黄河三角洲滨海湿地灌草群落的物种多样性及其与地下水埋深、土壤盐分之间的关系,结果表明:湿地灌草可划分为5种群丛类型,分别为(A)碱蓬+芦苇群丛,(B)柽柳-碱蓬群丛,(C)芦苇+碱蓬群丛,(D)芦苇群丛,(E)蒙古鸦葱群丛;其中,芦苇+碱蓬群丛具有较高的物种多样性与丰富度,而柽柳—碱蓬群丛物种丰富度与多样性相对较低;回归分析表明物种多样性与地下水埋深、土壤全盐量存在明显的线性关系,随着地下水埋深的增加物种多样性为增长趋势,反之随着土壤全盐量的增加物种多样性逐渐减少,可用多元线性回归表明三者的关系为y=0.122+0.005X1-0.001X2。Based on the plant plots survey, we analyzed the species diversity of shrub-herb communities, and the relationships between species diversity and groundwater depth and total soil salinity. The results revealed that the shrub-herb communities of the wetlands could be divided into 5 types： Suaeda glauca ＋ Phragmites communis association（A）, Tamarix sp.- Suaeda glauca association（B）, Phragmites communis ＋ Suaeda glauca association（C）, Phragmites communis association（D） and Scorzonera mongolica association（E）. Of these 5 associations, the species diversity in the Phragmites communis ＋ Suaeda glauca association was the highest, and the Tamarix sp.- Suaeda glauca association was the lowest. Regression analysis showed that the relationships between species diversity, the groundwater depth and soil total salt was obviously linear trend. Species diversity increased along with groundwater depths increasing, while species diversity reduced gradually along with soil total salt increasing. The mathematics formula was： y=0.122＋0.005X1–0.001X2.

关 键 词：黄河三角洲 植物群落 物种多样性 地下水埋深 土壤全盐 

分 类 号：Q145[生物学—生态学] X37[生物学—普通生物学]