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| 华北山地阳坡中生灌草植被对CO2浓度和温度变化的光合响应 | |
| 引用本文： | 林栋,吕世海,冯朝阳,马晖玲,刘立成,赵小强.华北山地阳坡中生灌草植被对CO2浓度和温度变化的光合响应[J].草业科学,2008,25(4):135-140. |
| 作者姓名： | 林栋 吕世海 冯朝阳 马晖玲 刘立成 赵小强 |
| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070;中国环境科学研究院生态所,北京,100012 2. 中国环境科学研究院生态所,北京,100012 3. 甘肃农业大学草业学院,甘肃,兰州,730070 4. 北京林业大学资源与环境学院,北京,100083 |
| 基金项目： | 北京市科委科研项目，国家环境保护公益项目 |
| 摘 要： | 利用便携式光合气体分析系统(LI-6400),从全球变化的角度分析华北山地阳坡灌草植被群落中5种具有代表性的植物光合特征对CO2浓度和温度变化的响应.结果表明:随着温度的升高,狗尾草Setaria viridis和龙牙草Agrimonia pilosa净光合速率呈明显增大趋势,在华北山地阳坡灌草群落中具有较强的竞争力,而达乌里胡枝子Lespedeza davurica的净光合速率对CO2的响应值降低,在环境温度升高的条件下不利于其光合产物的积累. |
| 关 键 词： | 光合特性 CO2浓度 温度 灌草植被 |
| 文章编号： | 1001-0629(2008)04-0135-06 |
| 修稿时间： | 2007年12月28 |
Grass-shrub vegetation response to change of CO2 concentration and temperature in the mountains of north China |
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| LIN Dong,LU Shi-hai,FENG Chao-yang,MA Hui-ling,LIU Li-cheng,ZHAO Xiao-qiang.Grass-shrub vegetation response to change of CO2 concentration and temperature in the mountains of north China[J].Pratacultural Science,2008,25(4):135-140. | |
| Authors: | LIN Dong LU Shi-hai FENG Chao-yang MA Hui-ling LIU Li-cheng ZHAO Xiao-qiang |
| Abstract: | From the aspect of global climate change,grass-shrub vegetation response to the change of CO2 concentration and temperature in mountains of north China was analyzed with LI-6400 portable photosynthesis system.The results showed that the Pn of Setaria viridis and Agrimonia pilos increased with the increasing temperature,and had stronger competition ability among the vegetation.But Pn of Lespedeza davurica decreased with the increase of temperature.Increasing temperature was disadvantageous for accumulation of photosynthetic matter. |
| Keywords: | photosynthetic characteristics CO2 concentration temperature grass-shrub vegetation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |