青藏高原多年冻土区活动层土壤入渗特征及机理分析

王一博,吕明侠,赵海鹏,高泽永

Analysis on soil water infiltration characteristics and mechanism in active layer in permafrost area of the Qinghai-Tibet Plateau

Yibo WANG,Mingxia LÜ,Haipeng ZHAO,Zeyong GAO

表1 土壤入渗性质与影响因子间的相关关系

Table 1 Correlation between soil infiltration properties and its influencing factors

初始入渗速率 瞬变入渗速率 渐变入渗速率 稳定入渗速率 平均入渗速率 土壤初始含水量 -0.729 -0.652 -0.918 -0.912 -0.875 干密度 0.570 0.500 0.791 0.871 0.760 根系生物量 -0.514 -0.439 -0.753 -0.835 -0.716 有机质含量 -0.989* -0.977* -0.964 -0.950 -0.987* 粉粒 -0.425 -0.375 -0.630 -0.773 -0.618 黏粒 -0.835 -0.815 -0.890 -0.968* -0.912 砂粒 0.457 0.410 0.652 0.793 0.644