植被根系影响下边坡渗流场分析  

Seepage Analysis of Slope with Respect of Plant Roots

作　　者：姜志强[1] 孙树林[1] 黄勇[1] 

机构地区：[1]河海大学地质及岩土工程系,江苏南京210098

出　　处：《水电能源科学》2005年第3期46-48,i005,共4页Water Resources and Power

摘　　要：植物根系同时存在边坡的饱和与非饱和区,根系通过吸收和蒸腾坡体内的水分对渗流场的重布产生明显的影响,是一个涉及饱和非饱和渗流的复杂问题。将根系吸水效应考虑为渗流控制方程中的源汇项,建立考虑根系吸水效应的饱和-非饱和渗流控制方程,并通过一个算例分析其对坡体渗流场的影响。Plant roots are distributed in both saturated and u nsaturated zone. Seepage field redistribution is greatly affected by the roots a bsorbing and transpiring water in slope, which is thought as a complicated probl em involved with. Considering the water-absorbing of roots as source-sink item , the controlling equation of saturated-unsaturated seepage is established. One calculating example is given to analyze the effects of roots to seepage field.

关 键 词：植被根系 饱和-非饱和渗流 吸水模型 

分 类 号：P641.2[天文地球—地质矿产勘探]