各种各样的盖子系统被设计了让垃圾堆地点以便最小化渗入(过滤) 进内在的浪费。这研究评估了土壤水分蒸发蒸腾损失总量封面(et 封面) 的土壤水平衡表演并且用活跃区域模型(手臂) 在系统模仿了过滤。实验被进行在一个赤裸的土壤封面和不同 et 封面测量水流动过程和水平衡部件。结果证明那植被在控制 ET 封面的水平衡起了一个关键作用。在有或没有植被盖子的 60 厘米的深度的土壤侧面,最大的土壤水存储能力分别地是 97.2 公里和 62.8 公里。在赤裸的土壤的过滤数量在盖住植被的土壤是乘那的 2.1。因为它考虑了优先的流动,手臂比连续统模型更精确地模仿了过滤。数字模拟结果也显示使用 ET 盖子系统是通过土壤水分蒸发蒸腾损失总量移开水的一个有效方法,因此减少过滤。
Various cover systems have been designed for landfill sites in order to minimize infiltration (percolation) into the underlying waste. This study evaluated the soil water balance performance of evapotranspiration covers (ET covers) and simulated percolation in the systems using the active region model (ARM). Experiments were conducted to measure water flow processes and water balance components in a bare soil cover and different ET covers. Results showed that vegetation played a critical role in controlling the water balance of the ET covers. In soil profiles of 60-cm depth with and without vegetation cover, the maximum soil water storage capacities were 97.2 mm and 62.8 mm, respectively. The percolation amount in the bare soil was 2.1 times that in the vegetation-covered soil. The ARM simulated percolation more accurately than the continuum model because it considered preferential flow. Numerical simulation results also indicated that using the ET cover system was an effective way of removing water through evanotransoiration, thus reducing nercolation.