人为干扰对巨桉人工林林下植物多样性和土壤理化性质的影响  

Effects of human disturbance on understory species diversity and soil physicochemical properties in Eucalyptus grandis plantation

作　　者：唐永彬 黄帅 钟欣艺 吴雨茹 许银 豆海东 TANG Yongbin;HUANG Shuai;ZHONG Xinyi;WU Yuru;XU Yin;DOU Haidong(Ziyang Natural Resources and Planning Bureau,Ziyang 641300,China;Baoxing Forestry Bureau,Ya’an 625700,China;College of Forestry,Sichuan Agricultural University,Chengdu 611130,China)

机构地区：[1]四川省资阳市自然资源和规划局,四川资阳641300 [2]四川省宝兴县林业局,四川雅安625700 [3]四川农业大学林学院,四川成都611130

出　　处：《四川林业科技》2024年第3期65-71,共7页Journal of Sichuan Forestry Science and Technology

基　　金：国家自然科学基金项目(32071591);四川省教育厅一般项目(15ZB0020)资助。

摘　　要：研究不同强度人为干扰(L:轻度干扰、M:中度干扰和H:重度干扰)对四川雅安苍坪山公园巨桉人工林物种多样性和土壤理化性质的影响。结果表明:共记录维管植物75种,隶属52科71属;灌草层物种多样性指数均无显著差异性(P>0.05);随着干扰强度的增强,灌木层物种多样性指数呈现先增加后减小的趋势,草本层物种多样性指数呈现先减小后增加趋势,全氮、速效磷、有机质、速效钾和全钾含量均呈现出减小的趋势;pH值、全氮、全磷、速效钾和全钾含量与草本层物种多样性密切相关;灌木层多样性指数与含水量呈显著负相关。The effects of human disturbance with different intensities(L:mild disturbance,M:moderate disturbance&H:severe disturbance)on species diversity and soil physical and chemical properties of Eucalyptus grandis plantation in Cangping Mountain Park,Ya'an,Sichuan Province were studied.The results showed that a total of 75 species of vascular plants were recorded,belonging to 52 families and 71 genera.There was no significant difference in species diversity index of shrub layer(P>0.05).With the increase of disturbance intensity,the species diversity index of shrub layer decreased first and then increased,and the species diversity index of herbaceous layer decreased first and then increased,and the contents of total nitrogen,available phosphorus,organic matter,available potassium and total potassium all decreased.The contents of pH values,total nitrogen,total phosphorus,available potassium and total potassium were closely related to the species diversity of the herbaceous layer.The diversity index of the shrub layer was significantly negatively correlated with water content.

关 键 词：人为干扰 城市公园 物种多样性 土壤理化性质 

分 类 号：S718.5[农业科学—林学]