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| 华北山地阳坡中生灌草群落植被光合差异性研究 | |
| 引用本文： | 林栋,马晖玲,吕世海,冯朝阳.华北山地阳坡中生灌草群落植被光合差异性研究[J].甘肃农业大学学报,2009,44(2). |
| 作者姓名： | 林栋 马晖玲 吕世海 冯朝阳 |
| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070;草业生态系统教育部重点实验室,甘肃,兰州,730070;中-美草地畜牧业可持续发展研究中心,甘肃,兰州,730070;中国环境科学研究院生态所,北京,100012 2. 甘肃农业大学草业学院,甘肃,兰州,730070;草业生态系统教育部重点实验室,甘肃,兰州,730070;中-美草地畜牧业可持续发展研究中心,甘肃,兰州,730070 3. 中国环境科学研究院生态所,北京,100012 |
| 摘 要： | 测量了华北山地阳坡中生灌草群落中4种代表性植物(荆条、狗尾草、龙牙草、鸭跖草)的各项光合参数,并对4种植物的光合特性进行了分析.结果表明,温度与CO2浓度耦合对荆条和狗尾草光合物质的积累影响较大;光照和CO2浓度是影响龙牙草和鸭跖草净光合速率和蒸腾速率的关键因子;荆条光合作用对温度变化不敏感;温度变化对龙牙草A-Ci曲线影响不显著.预测未来华北山地阳坡上生灌草群落优势种分布将依次为:荆条、狗尾草、鸭跖草和龙牙草. |
| 关 键 词： | 光合特性 温度 光照强度 CO2浓度 荆条群落 |
Difference in photosynthesis characteristic of shrub and herb community in sunny slop of north China |
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| LIN Dong,MA Hui-ling,LU Shi-hai,FENG Chao-yang.Difference in photosynthesis characteristic of shrub and herb community in sunny slop of north China[J].Journal of Gansu Agricultural University,2009,44(2). | |
| Authors: | LIN Dong MA Hui-ling LU Shi-hai FENG Chao-yang |
| Institution: | LIN Dong1,2,3,4,MA Hui-ling1,LU Shi-hai4,FENG Chao-yang4(1.College of Prataculture,Gansu Agricultural University,Lanzou 730070,China,2.Key Laboratory of Grassland Ecosystem,Ministry of Education PRC,3.Sino-USA Centers for Grazingland Ecosystem Sustainability,4.Institute of Ecology,Chinese Research Academy of Environmental Sciences,Beijing 100012,China) |
| Abstract: | In order to investigate the difference of photosynthesis characteristics of shrub and herb community,the photosynthetic parameters of four representative plants(Vitex negundo,Setaria viridis,Commelina communis,Agrimonia pilosa) in the sunny slop of north China were measured.The results showed that temperature and CO2 concentration coupling had great effects on the photosynthesis biomass production of Vitex negundo and Setaria viridis;light intensity and CO2 concentration were the key factors for Pn and Tr o... |
| Keywords: | photosynthesis characteristic temperature light intensity CO2 concentration Vitex negundo community |
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