摘要
【目的】不同扦插造林时间对俄罗斯杨幼苗生长与光合速率的影响。【方法】2009年4-8月进行俄罗斯杨扦插造林,调查各个月扦插苗的株高、地径和生物量,测定4、6月扦插苗生长期内的光合速率。【结果】4-8月扦插的俄罗斯杨幼苗生物量、株高和地径存在明显差异,4-8月扦插苗生长量依次降低;4月扦插苗光合速率与6月扦插相比,光合速率整体水平和最大值均大于6月扦插苗。【结论】在生长季内不同造林时间对俄罗斯杨扦插苗生长速率与光合有直接影响,扦插造林时间越早越有利于俄罗斯杨生长。
【Objective and method】This study was conducted to analyze the influence of different afforestation time on growth and photosynthesis of cutting of P.russkii Jabl,cuttage forestation was carried out from April to August to investigate the plant height,earth diameter,biomass photosynthetic rate of April and June was determined during cutting seedling growing season.【Result】Results show that there were significant differences among the biomass,plant height and diameter of P.russkii Jabl seedlings cutted from April to August,the growth of the seedlings cutted from Arpil to August were reduced in proper order.It was known by comparison,the photosythetic properties and the greatest value of the seedlings cutted on April were greater than that on June.【Conlusion】It was known that different cuttage forestation time had direct effect on plant height and photosynthetic properties.The earlier the cuttage forestation time,the more advantageous to the growth of P.russkii Jabl.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2010年第12期2431-2434,共4页
Xinjiang Agricultural Sciences
基金
国家重点基础研究发展计划项目(2006CB705809)
林业公益性行业科研专项(201004085)
国家发改委项目"新疆准噶尔沙漠北部荒漠植被与人工林碳汇能力示范区建议"
关键词
俄罗斯杨
生长季
扦插造林
光合速率
Populus russkii Jabl
growing season
photosynthetic properties
