CAJ | 학술논문

以新疆南部典型绿洲城市———阿克苏市主要行道树法国梧桐（Platanus×acerifolia）、圆冠榆（Ulmus densa）和桑树（ Morus alba）作为观测对象，分别测定城市不同功能区3种树种洁净叶片和蒙尘叶片的净光合速率（Pn）、气孔导度（Gs）和蒸腾速率（Tr）等气体交换参数，运用相关性分析和回归分析等方法，对比分析了植物叶面滞尘对叶片气体交换强度的影响，探明了叶面滞尘量与气体交换参数损失率的关系。结果表明：城市不同功能区同一个树种叶片气体交换能力有明显区别，由大到小的顺序表现为清洁区、居住区、工业区；同一个功能区不同树种叶片气体交换参数差异显著（ p＜0．05）；不同绿化树种洁净叶片气体交换参数明显大于蒙尘叶片；树种叶片气体交换参数变化率与叶面滞尘量之间存在正相关关系，相关系数为0．9091～0．9982；植物叶片的气体交换参数损失率随叶面滞尘量的增加而增大。
이신강남부전형록주성시———아극소시주요행도수법국오동（Platanus×acerifolia）、원관유（Ulmus densa）화상수（ Morus alba）작위관측대상，분별측정성시불동공능구3충수충길정협편화몽진협편적정광합속솔（Pn）、기공도도（Gs）화증등속솔（Tr）등기체교환삼수，운용상관성분석화회귀분석등방법，대비분석료식물협면체진대협편기체교환강도적영향，탐명료협면체진량여기체교환삼수손실솔적관계。결과표명：성시불동공능구동일개수충협편기체교환능력유명현구별，유대도소적순서표현위청길구、거주구、공업구；동일개공능구불동수충협편기체교환삼수차이현저（ p＜0．05）；불동녹화수충길정협편기체교환삼수명현대우몽진협편；수충협편기체교환삼수변화솔여협면체진량지간존재정상관관계，상관계수위0．9091～0．9982；식물협편적기체교환삼수손실솔수협면체진량적증가이증대。
We selected three urban greening tree species including Platanus×acerifolia, Ulmus densa and Morus alba in different functional areas of typical oasis city Aksu and measured their net photosynthetic rate ( Pn ) , stomatal conductance ( Gs ) and transpiration rate ( Tr ) between clean leaves and dust born leaves of each tree species. We studied the influence of fo?liage dust to gas exchange intensity of tree leaves by using regression and correlation analysis, and ascertained the relation?ship between dust retention capacity and the loss rate of gas exchange parameter. The leaf gas exchange performance of the same greening species in the different functional area are significantly different. Leaf gas exchange parameters of different tree species in the same urban functional areas are obviously different ( p<0.05) . Gas exchange parameters of clean leaf are higher than that of the dust born leaf among three tree species. There is a positive correlation between the loss rate of gas exchange parameters and dust retention capacity with thecorrelation index 0.909 1-0.998 2. Loss rate of gas exchange pa?rameters of tree leaves increases with the increase of foliage dust amount.