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郑州主要植物春季物候变化及其对气温变化的响应

吴荣军1;郑有飞1;赵国强2;王敏1   

  1. 1南京信息工程大学环境科学与工程学院, 南京 210044;2河南省气象局, 郑州 450005
  • 收稿日期:2008-09-19 修回日期:1900-01-01 出版日期:2009-06-10 发布日期:2009-06-10

Spring phenophase changes of dominant plants in Zhengzhou and their responses to air temperature change.

WU Rong-jun1;ZHENG You-fei1;ZHAO Guo-qiang2;WANG Min1   

  1. 1School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China;2Meteorological Bureau of Henan Province, Zhengzhou 450005, China
  • Received:2008-09-19 Revised:1900-01-01 Online:2009-06-10 Published:2009-06-10

摘要: 根据1983—2004年期间郑州市的物候和气温资料,分析了郑州市4种木本植物和2种草本植物的春季物候变化趋势及其对气温变化的响应。结果表明,自1983年以来,郑州春季主要植物物候呈偏早趋势,其物候变化具有同步性和顺序性的基本特征。郑州主要植物始花期与早春(3—4月)平均气温的相关性达到极显著,而毛白杨和垂柳2种植物始花期与冬季平均气温的关系也达到极显著; 代表性植物的始花期随3—4月平均气温的升高而提前,气温每升高1 ℃,刺槐、垂柳、蒲公英和车前始花期分别提前4.17、3.69、8.16和13.0 d。此外,始花前4旬是始花期对气温变化反应最敏感的时间段。

关键词: 树种多样性, 热带山地雨林, 西双版纳

Abstract: Based on the 1983〖KG-*2〗-〖KG-*7〗2004 observation data of phenophas e and air temperature in Zhengzhou, the spring phenophase changes of four tree s pecies and two herb species in the City as well as their relationships with air temperature change were studied. Since 1983, there had been an advancing tendenc y of the spring phenophase of the dominant plants in Zhengzhou, with the charact eristics of synchronization and sequentiality. There was a significant correlati on between the first flowering dates of dominant plants and the mean air tempera ture from March to April, and for Populus tomentosa and Salix babylonica , their first flowering dates also had significant correlations with the mean ai r temperature in winter. The first flowering dates of the dominant plants advanc ed with increasing mean air temperature from March to April. With an increase of 1 ℃, the first flowering dates of Robinia pseudoacacia, S. babylonica, Tar axacum mongolicum, and Plantago asiatica advanced 417, 369, 816, and 130 days, respectively. The 4 ten-days before first flowering of the dominan t plants were the most sensitive period of time to air temperature change.

Key words: Tree species diversity, Tropical montane rain forest, Xishuangbanna