摘要
利用物种丰富度指数、物种多样性指数（Simpson和Shannon--Wiener指数）、均匀度指数（Pielou和Alatalo指数）及生态优势度指数对胶南沿海防护林4种梯度带8种植被模式下的人工森林群落进行植物多样性分析。结果表明：各主要模式的多样性较低，不同梯度带的Simpson指数和Shannon—wiener指数变化范围为0．35～2．52和0．84～5．69。从沿海至内陆沿不同梯度带，多样性状况逐渐变好。灌草带中柽柳＋草本模式好于紫穗槐＋草本模式的多样性状况；基干林带中黑松＋刺槐＋火炬松＋白蜡混交林的多样性好于黑松纯林和刺槐纯林模式；丘陵水土保持林带的黑松纯林好于黑松＋麻栎混交林。
The species diversity of four gradient and eight models plant community in Jiaonan coastal protective forests was measured with richness index, diversity index （Simpson index, Shannon--Wiener）, eveness index（Pielou, Alatalo index） and ecological dominance index. The results showed that the biodiversity indexes of main models are rather low, in which the Simpson indexes and Shannon-wiener indexes are 0. 35-2.52 and 0.84-5.69 respectively. The biodiversities are getting better along the forest gradient belt from coast to inner land. For the biodiversity indexes, the model of Tamarix chinensis＋herbage is better than Amorpha fruticosa＋ herbage in the shrub and herbage belt, mixed forest of Pinus thunbergii ＋ Robinia pseudoacacia ＋ p. taeda＋ Fraxinus chinensis is better than P. thunbergii forest and Robinia pseudoacacia forest in the backbone forest belt, and P. thunbergii forest is better than mixed forest of P. thunbergii＋Q, acutissima in the soil and water conservation forest belt.
出处
《水土保持研究》
CSCD
北大核心
2008年第6期108-111,共4页
Research of Soil and Water Conservation
基金
国家科技支撑项目(2006BAD03A1405
2006BAC01A13)
国家自然科学基金(30770412)
滨州学院博士基金项目(2007Y08)
关键词
海防林
植物群落
物种多样性
coastal protective forest
plant community
species diversity
