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海南岛尖峰岭林区近50年气候突变、异常及变化周期的初步研究    

Abrupt and abnormal climate change and its cycle in recent 50 years in Jianfengling tropical forest, Hainan Island, China

文献类型:期刊文献

中文题名:海南岛尖峰岭林区近50年气候突变、异常及变化周期的初步研究

英文题名:Abrupt and abnormal climate change and its cycle in recent 50 years in Jianfengling tropical forest, Hainan Island, China

作者:林明献[1] 周璋[1] 李意德[1] 陈德祥[1] 骆土寿[1] 许涵[1]

第一作者:林明献

机构:[1]中国林业科学研究院热带林业研究所,海南尖峰岭森林生态系统国家野外科学观测研究站,广东广州510520

年份:2016

卷号:0

期号:4

起止页码:157-165

中文期刊名:生态科学

外文期刊名:Ecological Science

收录:CSTPCD;;CSCD:【CSCD_E2015_2016】;

基金:国家林业公益性行业科研专项(201404201);国家林业局林业科技创新平台运行补助项目(2015-LYPT-DW-013)

语种:中文

中文关键词:热带森林;尖峰岭;气候突变;气候异常

外文关键词:tropical forest; Jianfengling; abrupt climate change; abnormal climate change

分类号:S716

摘要:作为中国典型的热带森林生态系统之一,海南尖峰岭热带森林长期的气候动态变化对于评价气候变化对森林的影响的有着重要的作用。研究采用海南尖峰岭森林生态系统国家野外科学观测研究站尖峰气象观测场1957—2006年的地面常规气象观测资料,利用累积距平法和Mann-Kendall检验法以及小波分析法分析了尖峰岭林区气候突变和气候异常以及变化周期特征,结果表明:该区近50年的年平均气温、年平均地温、年平均最低气温在1978年左右发生了一次由低到高的突变;平均最高气温、年平均相对湿度和平均水汽压在1988年左右都发生了一次由低到高的突变;年蒸发量在1988-1990年经历由大到小的突变。在1998年高强度ENSO事件发生的年份,气温和地温均出现异常偏高,表明该林区的气候变化正是对全球气候异常的一次明显响应过程。Morlet小波分析表明尖峰岭林区气候变化主要存在10-25年的周期。
Tropical forest in Hainan Island is one of the typical tropical forest ecosystems in China. Its long term climatic dynamics is important for global change research. Climatic factors were analyzed with the meteorological data recorded in the Jianfengling(JFL) National Key Field Research Station for Tropical Forest Ecosystem from 1957 to 2006. The characteristics of abrupt and abnormal climate change and its cycle in JFL tropical forest were analyzed by the accumulative anomaly method, Mann-Kendall test and wavelet analysis. The results demonstrate that annual mean air/ground temperature, and annual mean minimum air temperature increased in recent 50 years, and presented an abrupt change in 1978. Annual mean maximum air temperature, annual mean relative humidity and mean vapor had abrupt changes from low period to high period near 1988. The evaporation changed from high to low, and the abrupt change occurred in the time of 1988-1990. Air and ground temperature were abnormally high when the strong intensity ENSO event happened in 1998. All of these mentioned above indicate that the climatic change of forest is just the obvious response to the global abnormal climate change. Climate change presents a 10 to 25 years cycle in JFL forest indicated by the Morlet Wavelet analysis method.

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