Simulation Study on the Effects of Vegetation on Basin Water Balance  

流域植被对水量平衡影响的模拟研究(英文)

作　　者：刘惠民 陶曙华[2] 陈玉琪[3] 周淮斌 汪健钢 

机构地区：[1]安徽省气象培训中心,安徽合肥230031 [2]安徽省宣城市气象局,安徽宣城242000 [3]安徽省淮北市气象局,安徽淮北235000 [4]安徽省望江县气象局,安徽望江246200 [5]安徽省繁昌县气象局,安徽繁昌241000

出　　处：《Meteorological and Environmental Research》2010年第10期62-64,68,共4页气象与环境研究（英文版）

摘　　要：By means of SSiB/TOPMODEL model which was the coupled model of simplified simple biosphere model(SSiB)and TOPMODEL,the sensitivity experiment of basin water balance was carried out in Suomo River basin covered by five vegetations,and the effects of vegetation on water balance were analyzed.The results showed that vegetation cover increased canopy transpiration and interception but decreased soil evaporation.The two contrary net effects determined the basin runoff affected by the hydrological effect of vegetation.For the five simulated vegetations,basin evaporation went down but basin runoff went up compared with bare land.When basin was covered by grass,total basin evaporation was highest(1.220 5 mm/d),and total basin runoff was the lowest(0.658 7 mm/d).When deciduous needle-leaf forest covered the basin,total basin evaporation was minimum(1.025 mm/d),while total basin runoff was maximum(0.854 4 mm/d).Transpiration and canopy interception reached maximum values of 0.383 and 0.489 mm/d when covering evergreen coniferous forest.For soil evaporation,it was highest with grass(0.799 mm/d)and lowest with evergreen coniferous forest(0.243 mm/d).By means of SSiB/TOPMODEL model which was the coupled model of simplified simple biosphere model(SSiB)and TOPMODEL,the sensitivity experiment of basin water balance was carried out in Suomo River basin covered by five vegetations,and the effects of vegetation on water balance were analyzed.The results showed that vegetation cover increased canopy transpiration and interception but decreased soil evaporation.The two contrary net effects determined the basin runoff affected by the hydrological effect of vegetation.For the five simulated vegetations,basin evaporation went down but basin runoff went up compared with bare land.When basin was covered by grass,total basin evaporation was highest(1.220 5 mm/d),and total basin runoff was the lowest(0.658 7 mm/d).When deciduous needle-leaf forest covered the basin,total basin evaporation was minimum(1.025 mm/d),while total basin runoff was maximum(0.854 4 mm/d).Transpiration and canopy interception reached maximum values of 0.383 and 0.489 mm/d when covering evergreen coniferous forest.For soil evaporation,it was highest with grass(0.799 mm/d)and lowest with evergreen coniferous forest(0.243 mm/d).

关 键 词：Coupled model Numerical experiment Hydrological effect of vegetation China 

分 类 号：P461.7[天文地球—大气科学及气象学]