Investigation into the relation between wu jianren and liang qichao 吴趼人与梁启超关系钩沉
2.
The reasonable model of exploiting and utilizing to the plant resources is put forward , which should be mainly protected . all kinds of communities are analyzed . the aubor ' s average height of karst evergreen - deciduous forest is 6 . 88m . theuper arbor ' s average height is 13 . 07m . the highest one reaches 25m . the community cover ratio is over 90 % , only few gaps existnatural convalescence forest is inferior to karst evergreen - deciduous forest in the restoration degree . there are a few tall arbor in the community . the height of alpine shrubs forest is 1 . 00 to 2 . 00m . there is no dominant species . the average height of karst shrubs forest is 0 . 97m . the rhus chinensi s , desmodium racemosum and golochidion pubrum are the dominant species 以观赏及绿化树种、用材树种和药用植物等归类对洛塔植物资源作出了评价,观赏植物主要有:玉趼、百合、绣球花等;用材树种有大叶榉、香果树、光灰楸等;药用植物有南方红豆杉、杜仲等,并提出了对植物资源以保护为主的合理开发利用模式。分析各类型植物群落的保护年龄,地质与土壤背景以及群落基本结构和特征,喀斯特常绿落叶林乔木层平均高度为6 . 88m ,上层乔木平均高13 . 07m ,最高可达25m ,群落郁蔽度达90以上。