水土保持通报2012，Vol.32Issue(6)：66-70,5.
黄土丘陵区人工油松林下植物多样性和更新调查
Biodiversity and Regeneration of Pinus Tabulaeformis Forest in Loess Hilly Region
摘要
Abstract
In order to understand the effects of slope aspect and human disturbances on the diversity and community regeneration,field and laboratory analyses were conducted on Pinus tabulaeformis artificial forest in loess hilly region.The results showed that the community similarity coefficient of undergrowth was 74%,74% and 38% between shady and sunny slopes,between the natural and litter removed conditions,and between natural and timbered conditions,respectively.The indices of richness(R),Shannon—Wiener(H),and Simpson(D) of the shrub layer on the shady slopes were larger,while Pielou(J) in the shady was smaller than those on the sunny slopes.For herbaceous layer,R,H,D and J on the shady slopes were larger than those on the sunny slopes.The values of R,H and D in shrub layer were the highest under litter removed condition,then followed by natural state and timbered land;however J showed the exactly opposite trend.The values of R,H,D and J in herbaceous layer were the highest under litter removed,then followed by timbered and natural forests.The best regeneration of seedlings was found in the timbered land and on the shady slopes,respectively.关键词
人工林/多样性/更新Key words
artificial forest/diversity/regeneration分类
农业科技引用本文复制引用
王铁梅,陈云明,张学伍,王娟,侯磊..黄土丘陵区人工油松林下植物多样性和更新调查[J].水土保持通报,2012,32(6):66-70,5.基金项目
陕西省科学院科技计划重点项目“陕北黄土丘陵区植被恢复与动物多样性保护关键技术” （）
中国科学院知识创新工程“百人计划”项目“黄土高原半干旱区群落水分平衡与调控机理” （）
“暖温带落叶阔叶混交林区域陕西省森林固碳现状、速率和潜力研究” （）
