岷江干旱河谷不同植被恢复技术模式植物多样性特征  

Characteristics of Plant Diversity under Different Vegetation Restoration Models in the Arid Valley of the Minjiang River

作　　者：张利 徐舟 单凤娇 肖玖金[3] 刘建霞 李旭华 刘千里 ZHANG Li;XU Zhou;SHAN Fengjiao;XIAO Jiujin;LIU Jianxia;LI Xuhua;LIU Qianli(Aba Tibetan and Qiang Nationality Autonomous Prefecture Institute of Forestry Science and Technology,Wenchuan 623000,China;Forestry and Grassland Resource Station of Aba Tibetan and Qiang Nationality Autonomous Prefecture,Maerkang 624000,China;College of Forestry,Sichuan Agricultural University,Chengdu 611130,China;Sichuan Academy of Forestry,Chengdu 610081,China)

机构地区：[1]阿坝州林业和草原科学技术研究所,四川汶川623000 [2]阿坝州森林和草原资源站,四川马尔康624000 [3]四川农业大学林学院,四川成都611130 [4]四川省林业科学研究院,四川成都610081

出　　处：《四川林业科技》2022年第5期34-40,共7页Journal of Sichuan Forestry Science and Technology

基　　金：国家自然科学基金青年科学基金资助项目(31400457);四川省景观与游憩研究中心资助项目(JGYQ2018032);四川省自然科学基金面上项目(2022NSFSC0084)。

摘　　要：为探索适宜干旱河谷区的植被恢复,以岷江上游干旱河谷区为研究对象,设置了鱼鳞坑整地和水平阶整地两种整地类型,并对每种整地类型进行了不同的覆盖处理及施肥类型,研究不同植被恢复措施对植被多样性特征的影响。研究表明,水平阶整地总体上较鱼鳞坑整地更有利于植物物种数的增加;不同恢复措施群落物种多样性指数存在不同程度的差异,与对照相比,不同恢复措施总体上降低了灌木物种多样性,提高了草本物种多样性,这可能与恢复时间较短及生活型不同有关;由于恢复时间较短,不同植被恢复措施的植物群落均处于不稳定性状态。总体而言,水平阶整地优于鱼鳞坑整地,石块优于地膜和遮阳网,配方肥优于有机肥,水平阶+石块+配方肥植被恢复措施更有利于多样性和群落稳定性的提升,是该区域较优的恢复方式。In order to explore suitable vegetation restoration models in arid valley areas,the arid valley areas in the upper reaches of the Minjiang River basin was selected as the research object,two types of land preparation were set up,i.e.level-terrace soil preparation and scale-shaped pit soil preparation,and different coverage treatment and fertilization types were carried out in each land preparation type to study the impact of different vegetation restoration measures on the characteristics of vegetation diversity.The results showed that level-terrace soil preparation was generally more beneficial to the increase of plant species number than scale-shaped pit soil preparation.The community species diversity index of different restoration measures was different in different degrees.Compared with the control,different restoration measures generally reduced the diversity of shrub species and improved the diversity of herb species,which might be related to short restoration time and different life forms.Due to the short restoration time,the plant communities of different vegetation restoration measures were in an unstable state.In general,the level-terrace soil preparation was better than that of scale-shaped pit soil preparation,stone was better than plastic film and sun-shading net,formula fertilizer was better than organic fertilizer,and level-terrace soil preparation+stone+formula fertilization restoration measure were more conducive to the improvement of diversity and community stability,which was a better restoration measure in this area.

关 键 词：干旱河谷 植被恢复措施 物种多样性 稳定性 

分 类 号：Q948[生物学—植物学]