ZHANG Yi,YU Xin-xiao,FAN Min-rui,et al.Response of Net Primary Productivity of Robinia pseudoacacia Forest to Climate Change in Beijing Mountainous Area[J].Research of Soil and Water Conservation,2012,19(03):151-155.
北京山区刺槐林净初级生产力对气候变化的响应
- Title:
- Response of Net Primary Productivity of Robinia pseudoacacia Forest to Climate Change in Beijing Mountainous Area
- 关键词:
- 净初级生产力; 气候变化; BIOME－BGC模型
- Keywords:
- net primary productivity; BIOME—BGC model; climate change
- 分类号:
- S718.52
- 摘要:
- 利用BIOME-BGC模型估算北京山区刺槐林的净初级生产力（NPP），并分析了NPP对不同未来气候情景的响应。结果表明：模型模拟出的NPP总体上低于样地实测值，年际变动率为11.2%，并表现出波浪形年际变化规律；降水量与NPP呈现极显著正相关关系，是NPP年际变化的主要气候因子；CO2的浓度加倍、降水增加对NPP积累起到促进作用，温度增加不利于NPP的积累；降水增加对NPP积累的正向效应不敌温度增加对NPP积累的负向作用，CO2浓度加倍、降水增加对NPP积累的协同促进作用大于温度增加对NPP积累的抑制作用。
- Abstract:
- BIOME-BGC model was used to estimate net primary productivity (NPP) of Robinia pseudoacacia forest and analyze the effect of climate change and different CO2 concentrations on them in Beijing Mountain Area during the period of 1974-2010. The results showed that simulated NPP were lower than measured values showing wave-shaped changes with an inter-annual variation rate of 11.2%; there was a positive correlation between precipitation and the NPP of Robinia pseudoacacia forest which indicated that precipitation was the key environmental factor controlling the NPP variations; NPP showed positive response to increased precipitation and doubling of CO2 concentration, while increased temperature was not conducive to NPP accumulation; the positive effects of increased precipitation to NPP were inferior to the negative effects of increased temperature; CO2 concentration doubling and increases of precipitation and temperature together could promote NPP with strong interaction.
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备注/Memo
收稿日期:2011-11-20;改回日期:2011-12-9。
基金项目:十二五国家科技支撑计划（2011BAD38B05）
作者简介:张艺（1988- ），女，硕士研究生，主要研究方向为林业生态工程、水土保持。E-mail：prayer88zhangyi@126.com
通讯作者:余新晓（1961- ），男，甘肃平凉人，教授，博士生导师，主要研究方向为森林水文、水土保持。E-mail：yuxinxiao111@126.com