热带作物学报2009，Vol.30Issue(10)：1522-1525,4.
气候变化对福建省牧草气候生产潜力的影响
Impacts of Climate Change on Potential Climatic Productivity of Pasture in Fujian,Province
摘要
Abstract
Global climate change has far-reaching impact on natural ecosystems and the socio-economic system, which has called for attention of governments and scientific community and even the general public now.In the background of global climate change, the study of the effect of climate change on crop potential production has an important theoretical and practical significance. The relationship between pasture productivity and climate change and the response of the pasture productivity to the climate change were studied with Fujiang, China being a study area, aiming to provide a scientific basis for rational development and utilization of pasture resources against the global climate change in Fujian. The results showed that the annual average temperature of Fujian tended to increase by 0.2 ℃ per 10 years from 1961 to 2007. The annual precipitation has not been increased obviously over the recent 50 years. In the terms of annual change of climatic productivity of pasture, the average pasture productivity on the whole showed a decreasing trend, decreased by 80 kg/hm~2 during the last 50 years. However, the potential climatic productivity of pasture every decade first decrease and then increased. In the spatial structure, the potential climatic productivity of pasture in Xiamen area was 51.06 ton/hm~2, the highest in Fujian Province, increasing by 4.05%; the potential climatic productivity of pasture in Sanming area was 46.1 ton/hm~2, decreasing by 5.9%, the lowest. The precipitation had higher impact on the potential climatic productivity of pasture than the temperature, which is the key factor affecting potential climatic productivity of pasture. The model-based simulation results showed that if temperature dropped by 1℃ and the precipitation increased by 1 mm in the future the potential climatic productivity of pasture would decrease by 318.3 kg/hm~2/a and 22.7 kg/hm~2/a in Fujian Province, respectively.关键词
气候变化/福建/牧草/气候生产潜力Key words
Fujian/ climate change/ forage/ potential climatic productivity.分类
农业科技引用本文复制引用
王义祥,翁伯琦,黄毅斌,徐国忠..气候变化对福建省牧草气候生产潜力的影响[J].热带作物学报,2009,30(10):1522-1525,4.基金项目
科技部农业成果转化项目(No.2007GB2C400151),福建省农业科学院科技创新团队建设基金(No.STIF-YO1)资助. （No.2007GB2C400151）
