北京林业大学学报2015，Vol.37Issue(9)：28-36,9.DOI:10.13332/j.1000--1522.20140439
长白落叶松林生态系统净初级生产力对气候变化的响应
Response of net primary productivity of Larix olgensis forest ecosystem to climate change
摘要
Abstract
Based on the BIOME-BGC model and field-measured productivity data, a modeling study was conducted and tested to estimate the dynamic changes of net primary productivity ( NPP) of Larix olgensis forest ecosystem in Wangqing Forestry Bureau, Jilin Province in northeastern China during the period of 1980--2013 . The response of NPP to regional climate change and the dynamics of NPP under the SRES A2 and B2 scenarios were explored. The results were shown as follows: 1 ) the model-simulated NPPs were in accordance with the field-measured productivity, suggesting a successful modeling of NPP patterns by the BIOME-BGC model. 2) The mean NPP of L. olgensis was 477. 74 g/(m2·a), fluctuating between 286. 60 and 566. 27 g/( m2·a ) during 1980--2013. 3 ) There was a significant correlation between the NPP of L. olgensis forest ecosystem and annual precipitation. Under the SRES A2 and B2 scenarios, the NPP would have a positive response to the increase of annual precipitation. The temperature would have a stronger effect than the precipitation. The elevated CO2 would benefit the increase of NPP.关键词
净初级生产力/气候变化/BIOME-BGCKey words
net primary productivity ( NPP)/climate change/BIOME-BGC分类
农业科技引用本文复制引用
何丽鸿,王海燕,王璐,王岳..长白落叶松林生态系统净初级生产力对气候变化的响应[J].北京林业大学学报,2015,37(9):28-36,9.基金项目
国家自然科学基金项目(31270697). （31270697）
