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本文探讨了桥山林区油松蒸腾强度的日变化过程以及影响油松蒸腾强度的因子,并计算了生长季节油松人工林的蒸腾量。结果表明:油松蒸腾强度日变化主要随气温及空气相对湿度而异,呈单峰和双峰曲线两种类型。气温是影响油松蒸腾强度的主导因子。生长季节油松人工林的蒸腾量占当地同期降雨的86.2%。是土壤水分的主要输出项目。
In this paper, the diurnal variation of transpiration intensity of Pinus tabulaeformis and the factors influencing transpiration intensity of Pinus tabulaeformis forest in Qiaoshan were discussed. The transpiration of Pinus tabulaeformis plantation was also calculated. The results showed that diurnal variations of transpiration intensity of Pinus tabulaeformis mainly depend on temperature and air relative humidity, showing two types of single peak and double peak curve. Temperature is the dominant factor affecting the transpiration of Pinus tabulaeformis. During the growing season, the transpiration of Pinus tabulaeformis plantation accounted for 86.2% of the local rainfall. Soil moisture is the main output project.