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
該區北部目前還保存有空間上完整的植被正向演替系列，即棄耕地先鋒群落草本群落（白羊草bothriochloaischemum 、茭蒿artenmisiagiradii +長茅草stipabungeana 、鐵桿蒿artenmisiasacrorum 、大油芒spodiopogensibiricus +苦參sophoraflavecens 、黃菅草themedajaponica或野古草arundinellaanomala ）灌叢群落（沙棘hippophaerhamnoides 、狼牙
刺sophoraviciifdia 、虎榛子ostryopsisdavidiana ）早期森林群落（喬灌群聚、山
楊populusdavidiana 、白樺betulaplatyphylla 、側柏platycladusorientalis 、 ）遼東櫟群落（ quercusliaotungensis ） 。
Fine - root dynamics in mixed plantation of poplar and black locust
沙地
楊樹
刺槐混交林細根動態
Not just the king of kung fu, chang cheh was a versatile director. young people is his attempt to a teen drama and looking at it now, it harks back to.
國術組何泰的女友
楊戀乃校花，引來同校體育健將林達的追求，林並諷
刺何泰，兩人關系惡劣
Discussion on the acupuncture technique of yang ji - zhou from the metrology angle
從計量學角度探討
楊繼洲針
刺手法
Mr. rowell yang long - san, chairman and chief executive officer, proview international said : with the increase in market supply, and subsequent price drops of lcd panels, the prices of lcd monitors have declined in accordance. although hit by the price drop, proview is able to benefit from the resulting surge in demand
唯冠國際主席兼行政總裁楊榮山先生表示：液晶體顯示屏供應大增，導致價格大幅下降，液晶體顯示器的價格亦隨之下滑，卻刺激市場需求，唯冠作為業內主要生產商，亦受惠於市場對液晶體顯示器的興趣上升。
