我国东北4种常见阔叶乔木物候对气候变化的响应  

Response of 4 Common Broad-Leaved Arbors Phenology to Climate Change in the Northeast China

作　　者：裴顺祥[1,2] 郭泉水[2] 辛学兵[1] 刘玮[3] 洪明[2] 

机构地区：[1]中国林业科学研究院华北林业实验中心,北京102300 [2]中国林业科学研究院森林生态环境与保护研究所,北京100091 [3]黑龙江省森林植物园,哈尔滨150040

出　　处：《林业科学》2011年第11期181-187,共7页Scientia Silvae Sinicae

基　　金：林业公益性行业科研专项经费项目(200804001)

摘　　要：物候现象是指示气候及自然环境变化的重要指标（Peuelas et al.,2001;Moresette et al.,2009）。自然物候记录可以提供全球环境变化最直接和最有效的证据。已有研究结果表明,受全球气候变化影响,1952—2000年地中海地区（Peuelasetal.,2001）、1851—1994年匈牙利（Walkovszky,1998）、In order to reveal the response of four broad-leaved arbors to climate change, we studied relationships between interannual variations of air temperature and various phenophases （i.e., seasonal biological events） of broad-leaved arbors species （Betula platyphylla, Juglans mandshurica, Ulmus pumila and Morus alba） in the Harbin, based on meteorological data from 1951-2008 and phenological data from 1963-2008. Results showed that the air temperature in Harbin had an increasing trend from 1951 to 2008, especially after 1978. The increase of the annual minimum temperature was greater than that of the annual maximum temperature and annual mean temperature. Annual precipitation slightly increased, but not significantly. In the period of 1963-2008, bud burst, beginning of leaf expansion and first flowering of the 4 species all shifted to 5.7 d, 10.2 d and 7.9 d earlier, respectively, and end of leaf-falling was delayed for 7.5 d. The pattern of phenological change was consistent with that of air temperature change. The phenophases earlier or later was mainly subjected to air temperature, especially the mean temperature of the same month and previous month when phenophase began. The phenophase had little correlation with the precipitation. When the mean temperature in March rose up by 1 ℃, Betula platyphylla, Juglans mandshurica, Ulmus pumila and Morus alba buds burst were advanced by 2.2 d, 2.1 d, 0.8 d and 2.3 d, respectively, beginning of their leaf expansion was advanced by 2.2 d, 2.4 d, 2.1 d and 1.7 d, respectively, and the first flowering was advanced by 2.2 d, 0.8 d, 2.2 d and 1.2 d, respectively.

关 键 词：阔叶乔木 气候变化 植物物候 哈尔滨 

分 类 号：S718.51[农业科学—林学] Q948.1[生物学—植物学]