摘要
该文应用FAO推荐的Penman-Monteith方法对G1京哈高速公路绿色廊道的参照作物蒸散量,6种常见绿化植物的植物系数和需水量进行研究。结果表明:整个生长期,参照作物蒸散量呈单峰型曲线,6月达到峰值,为187.2 mm,10月达到最低值;6种植物的植物系数在整个生长期均呈现单峰型曲线,各个生长月的植物系数和品种间存在极显著差异(p<0.05),其中红叶李的植物系数最大,为0.98,五叶地锦的植物系数最小,为0.70。6种植物在整个生长期总需水量表现为:红叶李>高杆金叶榆>马蔺>油松>桧柏>五叶地锦。
In this study,Penman-Monteith formula which was recommend by FAO was used to research the referencecrop evapotranspiration of green corridor of G1Beijing-Harbin Highway,and plant coefficients and water demand of6common green plants.The results indicated that:in the whole growing period,reference crop evapotranspiration presentedunimodal type curve,peak value appeared in June,which was187.2mm,and lowest value appeared in October;plantcoefficients of6common plants were all unimodal type curves,and in every growing month,plant coefficients of differentplants were highly significant different(p<0.05).All of these6plants,plant coefficient of Prunus cerasifera washighest,0.98and that of Parthenocissus quinquefolia was lowest,0.70.The water demand rank of6plant species wasas follow:Prunus cerasifera>Ulmus pumila cv.jinye>Iris lactea var.chinensis>Pinus tabulaeformis>Sabina chinensis>Parthenocissus quinquefolia.
作者
刘维权
LIU Weiquan(Jing-Qin Office of Hebei HighwayAdministration Bureau, Qinhuangdao 066000, China)
出处
《辽宁林业科技》
2017年第2期10-13,40,共5页
Liaoning Forestry Science and Technology
基金
河北省交通运输厅科技计划项目(Y-2014024)
关键词
参照作物蒸散量
植物需水量
植物系数
绿化植物
reference crop evapotranspiration
water demand
plant coefficient
green plant
