CAJ | 학술논문

通过在新疆昭苏马场设置不同模拟放牧强度,研究了不同放牧强度下割草地鸭茅Dactylis glomerata叶片和根部可溶性糖含量的季节变化,结果显示:鸭茅叶片可溶性糖在打草前呈上升趋势,返青后叶片可溶性糖含量较高,进入抽穗期后其含量降低.生长季前期根的可溶性糖含量差异不大(P>0.05),打草后其含量迅速变低,而后逐渐上升,9月下旬其含量减少.时间和放牧强度共同作用对鸭茅叶片和根部可溶性糖含量影响显著(P<0.01).结果表明不同放牧强度对鸭茅叶片和根部可溶性糖含量有一定的影响,由于时间和气候变化的原因,其变化没有呈现一定的规律.
통과재신강소소마장설치불동모의방목강도,연구료불동방목강도하할초지압모Dactylis glomerata협편화근부가용성당함량적계절변화,결과현시:압모협편가용성당재타초전정상승추세,반청후협편가용성당함량교고,진입추수기후기함량강저.생장계전기근적가용성당함량차이불대(P>0.05),타초후기함량신속변저,이후축점상승,9월하순기함량감소.시간화방목강도공동작용대압모협편화근부가용성당함량영향현저(P<0.01).결과표명불동방목강도대압모협편화근부가용성당함량유일정적영향,유우시간화기후변화적원인,기변화몰유정현일정적규률.
The different simulatant grazing intensity were designed on Zhaosu Horse Farm to study the change of soluble sugar contents in roots and leaves of Dactylis glomerata in mowing pasture. The results showed that the soluble sugar content in leaf was increasing before the cutting. It was high after returning green but low after heading stage. The roots of soluble sugar contents on growth prophase was not significant (P>0.05). It was rapidly decreased after cutting, and then raising up until late September. The co-impacts of season and grazing intensity on the soluble sugar content were significant (P<0.01). The effect of the grazing intensity on the soluble sugar content was significant, but its affecting patter was not obvious due to season and climate.