摘要
生长季白三叶各构件热值及能量呈周期性波动 ,构件热值的大小顺序为 :花序 >匍匐茎 >叶片 >根部 ,分别为 2 1 .1 ,2 0 .5,2 0 .0 ,1 9.0kJ/g .叶片第一个热值峰值期处于 5月末至 6月末 ,第二个峰值期处于 8月末至 1 1月初 .除了花序能量较低外 ,白三叶其余各构件能量年平均值差异并不明显 ,叶片、匍匐茎及根部能量的最大值分别为 2 4 2 3 .6,1 92 6.1 ,1 71 0 .1kJ/m2 ;季节平均值分别为 1 3 83 .5,1 42 4 .6,1 3 86.1kJ/m2 .白三叶构件能量及热值与生长日长短、降雨及气温之间存在显著或极显著相关关系 .
Both the caloric value and the energy of modules of T. repens had cyclical fluctuations in growing season. The order of caloric value of modules of T. repens was inflorescence(21.1 kJ/g),stolon(20.5 kJ/g),leaf(20.0 kJ/g),and root(19.0 kJ/g).The first peak time of leaf caloric value occurred between May and June, while the second one occurred from August to November. There was little difference of average energy among leaf, stolon and root. The seasonal average of energy of leaf, stolon and root was 1 383.5,1 424.6, 1 386.1 kJ/m 2 respectively, while the max value was 2 423.6,1 926.1,1 710.1 kJ/m 2 . There were significant correlationships between caloric values, energy of T. repens modules and growing days, precipitation and temperature.
出处
《东北师大学报（自然科学版）》
CAS
CSCD
北大核心
2001年第2期84-88,共5页
Journal of Northeast Normal University(Natural Science Edition)
基金
国家"九五"科技攻关项目 ( 960 1 60 2 0 2 )
