木本植物对高氮沉降的生理生态响应  

Ecophysiological Responses of Woody Plants to Elevated Nitrogen Deposition

作　　者：李德军[1] 莫江明[1] 方运霆[1] 江远清[1] 

机构地区：[1]中国科学院华南植物园

出　　处：《热带亚热带植物学报》2004年第5期482-488,共7页Journal of Tropical and Subtropical Botany

基　　金：国家自然科学基金项目(30270283);广东省自然科学基金项目(021524);中国科学院知识创新工程领域前沿项目;中国科学院华南植物研究所所长基金项目资助

摘　　要：从4个方面综述了木本植物对氮沉降增加的生理生态响应研究进展。(1)氮沉降增加引起木本植物组织氮浓度增加,从而改变其体内的氮代谢;(2)氮沉降影响植物的光合作用速率及与光合作用相关的含氮组分,一定范围内氮沉降会增加光合速率、光合色素和Rubisco含量;(3)氮沉降增加将导致植物的呼吸作用增强;(4)氮沉降增加不利于植物的抗逆性,导致植物的抗寒力和抗病虫害的能力下降。During the past several decades, nitrogen deposition has brought a series of environmental and ecological problems. The subjects included in this literature review are: (1) elevated nitrogen deposition changes nitrogen metabolism in plants due to the increasing nitrogen concentration in plant tissues; (2) it influences photosynthesis including photosynthetic rate, photosynthetic pigments and Rubisco concentrations; (3) elevated nitrogen deposition increases plant respiration; and (4) increases the susceptibility of plant resistance to coldness, pests and diseases.

关 键 词：氮沉降 木本植物 氮代谢 光合作用 呼吸作用 抗逆性 综述 

分 类 号：Q945.79[生物学—植物学]