CAJ | 학술논문

利用 Phytalk 植物生理生态监控系统同步自动采集新温185号核桃(J uglans regia ‘Xinwen185’)的茎直径、茎液流速及其所处环境因子的日变化过程，并采用多元线性逐步回归分析方法分析其茎直径变化、茎液流速与其所处环境因子之间的相关关系。结果表明，新温185号核桃茎直径连日变化过程曲线呈现以24 h 为周期的不规则锯齿状波动变化，茎直径变化与其所处的土壤温度和土壤含水量之间存在线性正相关关系，而与其所处环境的太阳总辐射、空气相对湿度和饱和水汽压差之间存在线性负相关关系；新温185号核桃茎液流速呈明显的昼夜节律变化，茎液流速与所处环境的太阳总辐射、空气温度之间存在线性正相关关系，而与其所处环境的空气相对湿度、饱和水汽压差和风速之间存在线性负相关关系。
이용 Phytalk 식물생리생태감공계통동보자동채집신온185호핵도(J uglans regia ‘Xinwen185’)적경직경、경액류속급기소처배경인자적일변화과정，병채용다원선성축보회귀분석방법분석기경직경변화、경액류속여기소처배경인자지간적상관관계。결과표명，신온185호핵도경직경련일변화과정곡선정현이24 h 위주기적불규칙거치상파동변화，경직경변화여기소처적토양온도화토양함수량지간존재선성정상관관계，이여기소처배경적태양총복사、공기상대습도화포화수기압차지간존재선성부상관관계；신온185호핵도경액류속정명현적주야절률변화，경액류속여소처배경적태양총복사、공기온도지간존재선성정상관관계，이여기소처배경적공기상대습도、포화수기압차화풍속지간존재선성부상관관계。
Phytalk Phytomonitor system produced by Israeli PhyTech Company was used to automatically collect diurnal variation process of the stem diameter,sap flow relative rate of J uglans regia ‘Xinwen185’ and their environmental factors,and multivariate linear stepwise regression analysis method was applied to analyze the relationships between the changes of stem diameter,the stem sap flow and environmental fac-tors.The results showed that J .regia ‘Xinwen185’stem diameter daily variation process curve demon-strated irregular dentate flucluation changes with 24 h of cycle.There were linear positive correlations be-tween stem diameter variation and soil temperature and soil moisture content.But there were linear nega-tive correlations between solar total radiation,air relative humidity and saturated vapour pressure differ-ence.The stem fluid flow velocity of J .regia ‘Xinwen185’reflected significantly day and night rhythmical changes.There were linear positive correlations between stem fluid flow velocity,the solar total radiation and air humidity.But there were linear negative correlations between air relative humidity,saturated vapour pressure difference and wind speed.