1 基本情况 1979年以来,江苏省各市县的四旁树都按300株折合1亩林地面积计算森林覆盖率,这种计算方法误差较大,不能真正反映实际情况。 为了加快平原绿化进程,国家对平原绿化先进县(市、区)提出了各项达标标准,其中森林覆盖率、村庄绿化率都与四旁树木 1 Basic Information Since 1979, the forest coverage of all four cities and counties in cities and counties in Jiangsu Province has been calculated based on 300 forest land areas equivalent to 1 mu. This calculation method has large errors and can not really reflect the actual situation. In order to speed up the process of plains greening, the state put forward various standards for compliance with the advanced counties (cities and districts) in the plains afforestation, in which the forest coverage rate and village afforestation rate are all similar to those of the four sides of trees