基于树木年轮的北京松山地区生态气候指标的重建  

Tree Ring Reconstruction of Eco-climatic Variables in Songshan Mountain Area,Beijing

作　　者：王晓晖[1] 白杨[1] 徐康[1] 薛肖肖[1] 关文彬[1] 

机构地区：[1]北京林业大学,北京100083

出　　处：《东北林业大学学报》2011年第10期71-73,共3页Journal of Northeast Forestry University

基　　金：林业公益性项目(200904019)

摘　　要：利用北京松山地区油松树木年轮资料,按照树木年轮学要求和方法,建立年轮宽度年表。根据油松年表数值同温度与降水量等气候因子的相关分析结果,基于延庆1959—2007年的气象资料,建立生态气候指标——湿润指数和干燥度指数。选择油松差值年表数值对1959—2007年间松山地区的干燥度指数进行重建,并对1933—1958年的干燥度指数进行模拟,将研究结果与历史文献灾害记录及前人研究成果相对照。结果表明:松山油松对降水量的响应相对于温度更敏感;利用年表进行重建和模拟有效;松山地区气候有变干趋势,这也与全球气候变化的趋势相一致。Tree-ring increment cores of Pinus tabulaeformis were sampled from Songshan Mountain area, located in Beijing. According to the discipline of dendrochronology, the tree-ring width chronologies were constructed. Humidity index and drought index were calculated by the correlation analysis between tree-ring width chronologies and mean temperature and precipitation, based on the meteorological data of Yanqing （ 1959-2007 ）. The residual chronology was chosen to reconstruct drought index during 1959-2007, and simulate the drought index for the years without meteorological data （ 1933- 1958）. The reconstructed drought index and the simulated drought index were compared with the regional historical records and the results of previous researches. Results show that P. tabulaeformis is more sensitive to precipitation than to temperature. Reconstruction and simulation by chronologies are successful. The climatic trend of getting drier in Songshan Mountain area is consistent with the global climate changes.

关 键 词：年轮宽度年表 干燥度指数 松山 

分 类 号：S718.512[农业科学—林学]