伊犁蒿和草原苔草蒸腾强度的初步研究

THE STUDY ON TRANSPIRATION OF ARTEMISIA TRANSILIENSIS AND CAREX LIPAROCARPOS

本文初步研究了伊犁篙和草原苔草的蒸腾强度以及与环境因子的相关性,研究结果表明:两种牧草一天的蒸腾强度过程为单峰,草原苔草蒸腾强度大于伊犁蒿,同一种牧草在不同坡向的蒸腾差异不显著,并且根层的土壤温度对蒸腾有显著影响。对在垂直梯度上(150cm 和60cm)伊犁蒿蒸腾强度与大气温湿度关联度分析表明,在这两个层次上的温湿度作用不同,从而又进一步用稳态气孔计法进行了生理活动和环境因子之间的相关性分析,从理论上初步讨论了它们之间的辩证关系。

This paper presented informal,ion on transpiration of Artemisia transiliensis and Carex liparocarpos.The data indicate that,process of transpiration in daylight,is single peak which appears at noon,moreover,transpiration intensity of Carex liparocarpos is greater thaz that of Artemisia transiliensis.In a short period (one month) and in a small area (three ha),and on different slope the difference of transpiration intensity of the same species can not be measu-red.The transpiration intensity is closely related to soil temperature.Diffe-rence between air temperature and relative humidity in vertical gradient is very small and its influence on transpiration of Artermisia transiliensis is also very small in sagebrush desert.