摘要
为了研究气象水分参数对甘蔗茎伸长量的影响,用2003—2007年柳州市农业气象试验站甘蔗生育状况观测数据及同期的气象水分参数(降水量、参考作物蒸散量、水分盈亏量以及水分收入量),利用SPSS软件对甘蔗蔗茎旬伸长量与气象水分参数进行统计回归分析。结果表明:2003—2007年各年旬甘蔗伸长量与旬水分收入量关系最密切,呈显著正相关,其次是旬降水量、旬水分盈亏量,最后是参考作物蒸散量,对2003—2007年5年甘蔗旬伸长量与同期5年气象水分参数进行相关分析,结果与各年基本一致;本旬水分收入量相比前1旬、前2旬、前3旬、前4旬与甘蔗茎伸长关系密切,本旬加前1,2,3旬的水分收入量相比本旬加前1旬、本旬加前1,2旬、本旬加前1,2,3,4旬与甘蔗茎伸长关系密切。水分收入量是影响甘蔗茎伸长最重要的因子,对甘蔗茎伸长的影响具有滞后性和累积性。
To study the impact of meteorological moisture parameters on sugarcane stem elongation,the sugarcane data and the corresponding meteorological moisture parameter data from the agro-meteorological experiment station of Liuzhou from 2003 to 2007 are used to conduct statistical regression analyses by SPSS.The results show that the 10-day sugarcane elongation has significant positive correlation with 10-day water income amount,as well as 10-day precipitation,water surplus and deficit,and evapotranspiration from 2003 to 2007;the results of the 5-year data analysis show the same relation.The water income amount in the current 10-day period has closer relation with the sugarcane elongation than that in the previous 10-day period,and i.e.,that in the first previous 10-day period has closer relation with the sugarcane elongation than that in the second previous 10-day period,and so on.It is concluded that water income amount is the key climatic factor for sugarcane elongation,and water income amount has an lagging and accumulative impact on sugarcane elongation.
出处
《气象科技》
北大核心
2011年第1期110-113,共4页
Meteorological Science and Technology
关键词
甘蔗
降水量
水分盈亏量
参考作物蒸散量
茎伸长
sugarcane
precipitation
water surplus and deficit
evapotranspiration
stem growth
