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Biomass Yield and Economic, Energy and Carbon Balances of Ulmus pumila L., Robinia pseudoacacia L. and Populus × euroamericana (Dode) Guinier Short-Rotation Coppices on Degraded Lands under Mediterranean Climate
Siberian elm black locust poplar deciduous tree species energy crops renewable energy solid biofuel wood pellets
2023/12/15
The steadily increasing demand for energy and concerns about climate change have prompted countries to promote the use of renewable energy sources, including lignocellulosic biomass. In this context, ...
《楚辞》植物简介：榆树（榆）Ulmus pumila （图）
《楚辞》 植物简介 榆树 Ulmus pumila
2023/5/17
形态特征：落叶乔木，高达25米，幼树树皮平滑，大树皮不规则深纵裂，粗糙。冬芽近球形或卵圆形，芽鳞背面无毛，内层芽鳞的边缘具白色长柔毛。叶椭圆状卵形，先端渐尖或长渐尖，边缘具重锯齿或单锯齿。花先叶开放，多数成簇状聚伞花序，在去年生叶腋成簇生状，花药紫色。翅果近圆形，无毛，有凹缺，种子位于翅果中部或近上部。花果期3-6月。