摘要
【目的/意义】气候变化对农业生态系统有着重要的影响。通过研究福州高盖山马尾松树轮宽度对气候变化的响应,建立农业生态系统与气候变化研究模型,为研究气候变化对农业经济与农业生态系统提供科学经验。【方法/过程】以福州高盖山马尾松的树轮样本为研究对象,建立了马尾松树轮宽度年表,并分析了马尾松径向生长与气候因子的响应关系。【结果/结论】不同季节限制马尾松生长的气候因子不同,上年1-3月份的降水成为影响马尾松径向生长的主要因子,树轮宽度与上年1-3月降水量呈显著负相关(r=-0.347);当年7-9月份温度成为影响马尾松径向生长的主要因子,树轮宽度指数与当年7-9月温度呈显著正相关(r=0.379)。研究表明,一年中不同时期限制马尾松径向生长的气候因子不同,说明亚热带湿润地区的树木径向生长也对气候的变化有一定的响应作用。
【Objective/Meaning】Climate change has important implications for agricultural ecosystems.By studying the response of the tree-ring width of Pinus massoniana in Gaogai Mountain of Fuzhou to climate change,the research model of agroecosystem and climate change was established to provide scientific experience for the research on agroeconomy and agroecosystem caused by climate change.【Methods/Procedures】Based on the samples of Pinus massoniana from Gaogai Mountain in Fuzhou,a chronology of the tree-ring width of Pinus massoniana was established,and the relationship between the radial growth of Pinus massoniana and climate factors was analyzed.【Results/Conclusions】The climate factors limiting the growth of Pinus massoniana in different seasons were different.The precipitation from January to March of the previous year became the main factor affecting the radial growth of Pinus massoniana,and the tree-ring width was significantly negatively correlated with the precipitation from January to March of the previous year(r=-0.347).The temperature from July to September of that year became the main factor affecting the radial growth of Pinus massoniana,and the tree-ring width index showed a significant positive correlation with the temperature from July to September of that year(r=0.379).The research showed that the climate factors restricting the radial growth of Pinus massoniana in different periods of the year were different,indicating that the radial growth of trees in humid subtropical areas also had a certain response to climate change.
作者
赵鹏
ZHAO Peng(College of Geographical Science,Fujian Normal University,Fuzhou,Fujian 350007,China)
出处
《台湾农业探索》
2019年第6期76-82,共7页
Taiwan Agricultural Research
关键词
福州高盖山
马尾松
树轮宽度
气候变化
Gaogai Mountain in Fuzhou
Pinus massoniana
tree-ring width
climate response
作者简介
赵鹏(1991-),男,硕士研究生,研究方向:气候变化,E-mail:2965869833@qq.com。
