populus davidiana meaning in Chinese
山杨
Examples
- In different phases of development , vegetation systems in this region have changed from pioneer herbage species initially recovering in abandoned cropping lands ( bothriochloa ischemum , artenmisia giradii and stipa bungeana , artenmisia sacrorum , spodiopogen sibiricus and sophora flavecens , themeda japonica , and arundinella anomala ) to secondary shrubs ( hippophae rhamnoides , sophora viciifdia , and ostryopsis davidiana ) , early forest community ( populus davidiana , betula platyphylla and platycladus orientalis with arbors or shrub assembling ) , and finally liaotungesis community as the mature forest . in this study , soil profiles ( 0 - 5 , 5 - 15 , 15 - 25 , 25 - 35 , 35 - 50 cm soil layers ) were selected from typical vegetation systems representing for vegetation successions in the region
该区北部目前还保存有空间上完整的植被正向演替系列，即弃耕地先锋群落草本群落(白羊草bothriochloaischemum 、茭蒿artenmisiagiradii +长茅草stipabungeana 、铁杆蒿artenmisiasacrorum 、大油芒spodiopogensibiricus +苦参sophoraflavecens 、黄菅草themedajaponica或野古草arundinellaanomala )灌丛群落(沙棘hippophaerhamnoides 、狼牙刺sophoraviciifdia 、虎榛子ostryopsisdavidiana )早期森林群落(乔灌群聚、山杨populusdavidiana 、白桦betulaplatyphylla 、侧柏platycladusorientalis 、 )辽东栎群落( quercusliaotungensis ) 。 - This paper investigated the fungus flora of 8 main tree species , which are pinus tabulaeformis , larix principis - rupprechtii mayr , betula platyphylla suk , ostryopsis davidiana decne , ulmus pumila l . , quercus liaotungensis koidz , populus davidiana dode , prunus ansu , in daqingshan mountain
大青山地区环境恶劣、植被破坏严重，利用菌根生物技术实现植被恢复是一个重要方向。本文对大青山8个主要树种，即：油松、落叶松、白桦、虎榛子、榆树、辽东栎、山杏菌根资源及生态进行了调查。