CAJ | 학술논문

以青藏高原东缘西藏沙棘(Hippophae tibetana Schlecht)为对象，从区域尺度沿环境梯度采样分析共19个样地的西藏沙棘叶长、叶宽、叶面积、长宽比及相关的环境因子(生长季月均降水、生长季月均温度)，探究其叶片性状与环境因子之间的关系.结果表明，西藏沙棘叶长为13.66~31.48 mm；叶宽为2.42~5.24 mm；叶面积为24.44~119.26 mm2；长宽比为3.78~8.67.西藏沙棘叶长、叶宽和叶面积与生长季月均降水均极显著正相关，与生长季月均温度显著负相关；叶长宽比与生长季月均降水和月均温度都极显著正相关.此外，从研究区内叶片性状与生长季月平均降水和温度的相关性系数大小可以看出，西藏沙棘在生长阶段其叶片性状对降水的响应要明显强于对温度的响应，降水影响着西藏沙棘叶片性状的格局.初步推断在青藏高原快速隆升过程中，西藏沙棘对环境的选择受降水作用强于温度.
이청장고원동연서장사극(Hippophae tibetana Schlecht)위대상，종구역척도연배경제도채양분석공19개양지적서장사극협장、협관、협면적、장관비급상관적배경인자(생장계월균강수、생장계월균온도)，탐구기협편성상여배경인자지간적관계.결과표명，서장사극협장위13.66~31.48 mm；협관위2.42~5.24 mm；협 면 적 위24.44~119.26 mm2；장관비위3.78~8.67.서장사극협장、협관화협면적여생장계월균강수균겁현저정상관，여생장계월균온도현저부상관；협장관비여생장계월균강수화월균온도도겁현저정상관.차외，종연구구내협편성상여생장계월평균강수화온도적상관성계수대소가이간출，서장사극재생장계단기협편성상대강수적향응요명현강우대온도적향응，강수영향착서장사극협편성상적격국.초보추단재청장고원쾌속륭승과정중，서장사극대배경적선택수강수작용강우온도.
To explore the relationship between leaf size traits and environmental factors, this paper analyze the leaf length, leaf width, leaf area and length-width ratio of Hippophae tibetana from 1 9 sampling sites in east of Qinghai-Tibet Pleatu, and collect the environmental factors (growing season average monthly precipitation and temperature)of sampling sites.The results show that the leaf length varies from 13.66mm to 31.48mm,leaf width varies from 2.42mm to 5.24mm,leaf area vary from 24.44 mm2 to 1 1 9.26 and length-width ratio is 3.78 to 8.67.Leaf length,leaf width,leaf area are extremely significantly positive correlated to growth season average monthly precipitation,but significantly negative correlated to growing season average monthly temperature respectively. Leaf length-width ratios are significantly positive correlation with the growing season monthly precipitation and temperature. In addition,it shows that precipitation is the main environmental factor to control leaf size traits of Hippophae tibetana in growing season according to the coefficient.