西藏日喀则市园林植物调查与应用研究

Investigation and Application Research of Landscape Plants in Tibet of Shigatse City

采用现场踏勘调查法,对西藏日喀则市园林植物进行调查,分析了日喀则市园林绿化的现状、绿化模式及存在问题,并提出了相应举措。共调查园林植物20科、45属、71种(含品种)。结果表明:乔木层、灌木层、草本层重要值最高的分别为北京杨、侧柏、草地早熟禾,其重要值分别为47.787、86.802、75.700。该市绿化植物中,应用最多的是杨柳科,共15种;其次是蔷薇科,共10种;再次是豆科,共6种,分别占调查植物的21.13%、14.08%、8.45%。该市绿化模式主要为"乔木+地被植物"、"灌木+地被植物"等简单复合结构模式,绿化结构模式单一性突出。该地区植物长势普遍较差,园林绿化中"保活"工作是绿化的重点任务。

Investigated,analysed and discussed the current situation,characteristics and problems of Shigatse city landscape and put forward corresponding countermeasures.There were 20 families,45genuses,71 spesies in this investigation（including varieties）.The results showed that the highest importance value of arbor layer,shrub layer,herb layer were Populus×beijingensis W.Y.Hsu,Platycladus orientalis,Poa pratensis,the important value were 47.787,86.802,75.700 respectively.The most applicating green plants in Shigatse city was Salicaceae,the total of 15species;the second was Rosaceae,the total of 10species;the third was Leguminosae,the total of 6species and they occupied 21.13%,14.08%,8.45%respectively in the investigating plants.The mainly greening modes in Shigatse city were＂arbor＋herb＂,＂shrub＋herb＂etc.They belonged to simple greening modes and the simplicity of greening structure model really stood out.The plants growth were generally poor in this region and the primary task was＂ensuring survival＂.