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Effects of different land-use systems (grazing and understory cultivation) on growth and yield of se
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该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
通过在赣州市林业科学研究所沙石工区和双圳工区樟树矮林试验林的营建,并进行5年观察测定的有关数据,分析樟树矮林作业的经济效益,......
Rosewood(Pterocarpus erinaceus Poir.)is valued for flooring,ornaments,musical instruments and furniture-making due to it......
Effects of different land-use systems (grazing and understory cultivation) on growth and yield of se
The present study examines the extent of negative eff ects of traditional multiple land-use systems on oak coppices,from......
