模拟降雨格局变化对亚热带地区两树种液流特征的影响

张振振,杨轲嘉,顾宇璐,赵平,欧阳磊

Effects of simulated changes in precipitation pattern on sap flux in two tree species in subtropical region

ZHANG Zhen-Zhen,YANG Ke-Jia,GU Yu-Lu,ZHAO Ping,OUYANG Lei

表2 遮雨处理和对照组湿/干季降雨的灌溉/排除量及相应的土壤含水量

Table 2 The excluded/irrigated precipitation in wet/dry season and the corresponding soil water content in the control and drier dry season and wetter wet season treatments

补水量 Water input (mm) 土壤含水量 Soil water content (%) 0-20 cm 50 cm 湿季增雨 Irrigated in wet season DD1 370.56 35.12 39.34 DD2 370.56 33.85 38.69 DD3 370.56 DD4 370.56 AC1 0 34.98 37.79 AC2 0 34.13 38.55 AC3 0 AC4 0 干季减雨 Excluded in dry season DD1 -533.25 22.15 31.04 DD2 -496.89 21.64 30.61 DD3 -499.37 DD4 -513.80 AC1 0 29.59 33.91 AC2 0 27.54 35.68 AC3 0 AC4 0