【摘 要】
：
对北京山区落叶阔叶林辽东栎蒸腾速率进行了一个生长季的连续测定 ,结果表明影响其蒸腾速率的因子主要是气孔阻力、太阳辐射强度、叶面温度、叶室温度、大气相对湿度 .对辽东
【机 构】
：
武汉科技学院环境与化学工程系,中国农业科学研究院
论文部分内容阅读
对北京山区落叶阔叶林辽东栎蒸腾速率进行了一个生长季的连续测定 ,结果表明影响其蒸腾速率的因子主要是气孔阻力、太阳辐射强度、叶面温度、叶室温度、大气相对湿度 .对辽东栎叶片气孔阻力和蒸腾速率相关关系的分析结果显示 ,蒸腾速率和气孔阻力间属非线性关系 ,其方程为 :Tr辽东栎 =10 .0 - 4 .7ln(Rt) .
Successive determination of transpiration rate of Quercus liaotungensis decidues in deciduous broad-leaved forests in Beijing mountainous area showed that the factors influencing transpiration rate were stomatal resistance, solar radiation intensity, leaf temperature, leaf temperature and relative humidity. The results of correlation analysis between stomatal resistance and transpiration rate of Quercus liaotungensis showed that there was a non-linear relationship between transpiration rate and stomatal resistance, and the equation was: Tr Quercus liaotungensis = 10 .0-4.77n (Rt).
其他文献
对中南民族学院学报(自然科学版)1996～2001年间化学学科论文的发稿周期、论文转摘、论文引文及作者情况等进行了统计分析.结果显示:论文发稿周期越来越短;作者平均年龄日趋年
Magnetic iron oxide nanoparticles(IONPs) are heavily explored as diagnostic and therapeutic agents due to their low cost, tunable properties, and biocompatibili
Localized surface plasmon resonance(LSPR) arises when light interacts with metallic nanoparticles(NPs).When nanoparticles(NPs) assemble together, the plasmon co
Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts to noble metal surfaces. We report a simple synthetic approach
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
The evolution of the optical absorption spectrum of bimetallic Ag-Au monolayer-protected clusters(MPC)obtained by progressively doping Ag into the experimentall
采用乙醇提取蓝莓果实中的多种生物活性物质,以单因素试验为基础,通过Box-Behnken试验对乙醇浓度、料液比、提取温度3个因素进行响应面分析及优化。结果表明,蓝莓果实中总多
对‘琯溪蜜柚’‘黄金蜜柚’‘红肉蜜柚’‘红绵蜜柚’‘三红蜜柚’果实成熟期果肉有机酸和矿质元素含量进行测定。结果表明:与‘琯溪蜜柚’相比,其4个芽变品种果肉柠檬酸含
We here report the catalytic effects of foreign atoms(Cu, Ag, and Pt) doped into well-defined 25-gold-atom nanoclusters. Using the carbon-carbon coupling reacti