首 页 网络介绍 CERN新闻 规章制度 在研项目 论文与出版物 学术动态 生态知识 人员招聘 人员组成 English

    论文与出版物
   SCI论文目录
   SCI论文全文(PDF文件)
   核心期刊论文目录
   出版物目录
   研究报告目录

 出版物目录
Application of a progressive-difference method to identify climatic factor causing variation in the rice yield in the Yangtze Delta, China
------------------------------------------------------------------------------------------
出 版 社:International Journal of Biometeorology  
发表时间:2001, 45(2):53-58.  
台  站: 栾城农业生态系统试验站  
作  者:Yu Q, Hengsdijk H, Liu, JD  
点 击 率:375966
------------------------------------------------------------------------------------------
摘  要:Time series of rice yields consist of a technology-driven trend and variations caused by climate fluctuations. To explore the relationship between yields andclimate, the trend and temporal variation often have to be separated. In this study, a progressive-difference method was applied to eliminate the trend in time series. By differentiating yields and climatic factors in 2 successive years, the relationship between variations in yield and climatic factors was determined with multipleregression analysis. The number of hours of sunshine, the temperature and the precipitation were each defined for different intervals during the growing season and used as different regression variables. Rice yields and climate data for the Yangtze Delta of China from 1961 to 1990 were used as a case study. The number of hours of sunshine during the tillering stage and the heading to milk stage particularly affected the yield. In both periods radiation was low. In the first period, the vegetative organs of the rice crop were formed while in the second period solar radiation was important for grain filling. The average temperature during the tillering to jointing stage reached its maximum, which affected rice yields negatively. Precipitation was generally low during the jointing and booting stages, which had a positive correlation with yield, while high precipitation had a negative effect during the milk stage. The results indicate that the climatic factors should be expressed as 20- to 30-day averages in the Yangtze Delta; a shorter or longer period, e.g. 10 or 40 days, is less appropriate.  
关 键 字(英文):Rice, Yield, Climate variation, Yangtze Delta  
------------------------------------------------------------------------------------------
文件下载:
lc_International_Journal_of_Biometeorology_2001.pdf
相关文章:
广东珠海荷包岛生态旅游资源分析及规划
鼎湖山南亚热带常绿阔叶林凋落物量20年动态研究
根系分泌物及其在植物修复中的作用
鼎湖山马尾松林植物养分积累动态及其对人为干扰的响应
四川中亚热带扁刺栲-华木荷群系不同演替阶段林内小气候的比较
鼎湖山季风常绿阔叶林粗死木质残体的研究
30种园林植物对短期大气污染的生理生态响应
南亚热带季风常绿阔叶林锥栗-荷木-黄果厚壳桂群落发展趋势探讨
土壤种子库对原有植被恢复的贡献
苹果茎沟病毒对梨树幼苗生长及过氧化物酶活性的影响
相关文章分页:  共 201 页 2006 条记录 9 3[21][22][23][24][25][26][27][28][29][30]4 :

[关闭窗口]
中国生态系统研究网络 版权所有
| 网络介绍 | 联系方式 | 网站地图 |