【摘要】 依据城市森林和城市水土流失的特点,本文提出考查城市水流失率、水土流失率的指标。并对北京、伦敦等城市和河南长江流域山区水土保持林的水流失率进行了计算比较,结果表明水流失率、水土流失率是考察城市地区和一般林地水土流失的较好指标。更多还原

【Abstract】 Given the features of urban forest and water and soil loss in urban forest,water and soil loss rate was proposed as an indicator.Water loss rates in the urban forests of Beijing and London were compared with that of water and soil conservation forests along Yangtze River basin within Hennan province.The result showed water and soil loss rate and water loss rate to be better indicators for the assessment of water and soil loss in urban forest.更多还原