模拟氮沉降对雌雄美洲黑杨光合特性和异戊二烯释放的影响

编号 lyqk006830

中文标题 模拟氮沉降对雌雄美洲黑杨光合特性和异戊二烯释放的影响

作者 俞飞 

作者单位 浙江农林大学生态学院,浙江 临安 311300

期刊名称 林业科技通讯 

年份 2018 

卷号 0

期号 5

栏目名称 森林经营与经理 

中文摘要 采用盆栽法研究了模拟氮沉降对美洲黑杨（Populus deltoides Bartr.）雌雄幼苗光合特性和异戊二烯释放的影响。试验设置了低氮、中氮、高氮和对照4个氮沉降梯度。结果表明：随着氮沉降浓度的升高，雌株的蒸腾速率、净光合速率、胞间二氧化碳浓度和气孔导度下降，异戊二烯释放浓度和排放速率升高；而雄株光合参数和异戊二烯释放浓度和排放速率变化不大。雌株叶片异戊二烯释放浓度和排放速率与净光合速率呈显著负相关，而雄株异戊二烯释放与光合生理参数相关系数均不显著。说明雌雄美洲黑杨幼苗的光合特征和异戊二烯释放对氮沉降存在差异性响应。

关键词 美洲黑杨  Populus deltoides Bartr.  雌雄异株  光合特性  质子转移质谱仪  挥发性有机化合物 

基金项目 浙江省公益技术应用研究计划（分析测试）项目（2016C37065）；浙江省自然科学基金资助项目（LQ17C160004）。

起始页码 3

截止页码 6

作者简介 俞飞(1981-),实验师,主要从事植物生理生态方向研究。

分类号 S719;S792.11

DOI 10.13456/j.cnki.lykt.2018.05.001

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