测定温度的转化糖方法及其在景观生态学研究中的应用

摘要

Based on the chemical theory,lab.experiment and field study,the suitability of the sugar-inversion method for measuring temperature to landscape ecology research has been analyzed.The results show:1)The spatial variation of temperature in micro-scale landscape elements and in different vegetation types can be effectively measured by means of sugar-inversion method;2)Through adjusting the pH-level of the sugar solution this method can be applied to field research in various regions and periods;3)Supported by this method,a simultaneous temperature measurement at a large number of habitats with different landscape elements and different vegetation types,even in the areas where it is difficult to install the measure apparatus,can be simply and economically realized;and 4)The “effective temperature”measured by sugar-inversion method has a significant meaning for the study on the relationship between the ecological process and the temperature factor,for this method reflects directly the effects of temperature on the chemical process.%通过理论分析、室内实验和野外实测对测定温度的转化糖方法进行了深入研究，获得如下结论：①该方法的测定结果能有效地反映小尺度景观单元中和各种群落内部的平均温度特征；②调整样品pH值，能使转化糖方法适用于多种研究地区和多种观测时段；③该方法能够方便而经济地实现在大量不同景观部位和不同群落类型中实现同步测定，也能在难以设置仪器的条件中进行测定；④转化糖方法所测之“效应温度”直接反映了温度对反应过程的作用程度，因而对生态过程与温度之间关系的研究具有特殊意义。