东平湖湖滨带人工林下草本植物生长研究  

Study on herbaceous plant growth under plantation in lakeside zone of Dongping Lake

作　　者：徐梦辰[1] 张太志 

机构地区：[1]聊城大学环境与规划学院,山东聊城252059

出　　处：《山东林业科技》2015年第3期27-32,共6页Journal of Shandong Forestry Science and Technology

基　　金：国家自然科学基金(40901276);山东省优秀中青年科研奖励(2011BSB01256);聊城大学生创新项目(SF2013134)

摘　　要：以东平湖湖滨带人工林下草本植物为研究对象,基于野外调查与室内实验数据,分析了东平湖湿地环境因子和草本植物生长特征,运用回归分析揭示了草本植被生长与水盐因子的相互关系。结果表明:东平湖湖水呈碱性或弱碱性,湖水水质呈硫酸盐型;秋季土壤全盐与电导率含量明显高于春夏两季;草本植物物种数与多样性指数随季节变化不断增加,夏季草本植物生物量明显高于春秋两季;回归分析显示地表水矿化度、pH值与草本植物生物量的相关性强,土壤全盐、电导率与草本植物生物量的相关性较弱,表明水因子是东平湖湖滨带人工林下草本植物生长的主控因子。Herbaceous plant under plantation in lakeside zone of Dongping Lake was used as the study object. Based on the data of field investigation and indoor experimental, we analyzed the characteristics of environmental factors and herbaceous plant growth of Dongping Lake Wetland and used regression analysis to reveal the relationship between the growth of herba- ceous vegetation and water--salt factors. The result shows that the water of Dongping Lake is alkaline or weak--alkaline and the water quality was sulfate type. The content of soil conductivity and total salt in autumn was significantly higher than in spring and summer. The species and diversity index of herbaceous vegetation increases with the season variety and the biomass of herbaceous vegetation in summer are significantly higher than in spring and autumn. Regression analysis shows that the cor- relation of mineralization and pH values of surface water and biomass of herbaceous vegetation is higher than total salt and con ductivity and biomass. It shows that water factor is a main factor of the growth of herbaceous vegetation under plantation in lakeside zone of Dongping Lake.

关 键 词：草本植物 生物量 环境因子 东平湖 

分 类 号：S812.2[农业科学—草业科学] Q948.3[农业科学—畜牧学]