亚热带人工林下植被根际土壤酶化学计量特征

高雨秋,戴晓琴,王建雷,付晓莉,寇亮,王辉民

Characteristics of soil enzymes stoichiometry in rhizosphere of understory vegetation in subtropical forest plantations

GAO Yu-Qiu,DAI Xiao-Qin,WANG Jian-Lei,FU Xiao-Li,KOU Liang,WANG Hui-Min

表1 亚热带人工林生态系统林下植被基本信息

Table 1 Characteristics of understory shrub and herb species in three subtropical plantations

林分类型 Forest stand type 林下植被类型 Understory species 基径 Basal diameter (mm) 高度 Height (cm) 冠幅 Crown width (cm) 盖度 Coverage (%) 重要值 Importance value (%) 杉木林 Cunninghamia lanceolata forest 檵木 Loropetalum chinense 11.9 ± 2.7 126 ± 31 81 ± 15 - 19.72 杨桐 Adinandra millettii 13.1 ± 1.0 152 ± 13 94 ± 7 - 30.44 格药柃 Eurya muricata 13.2 ± 1.5 142 ± 16 86 ± 9 - 32.71 狗脊蕨 Woodwardia japonica - 94 ± 12 - 71 ± 7 3.09 暗鳞鳞毛蕨 Dryopteris atrata - 60 ± 5 - 43 ± 8 1.89 马尾松林 Pinus massoniana forest 檵木 Loropetalum chinense 18.9 ± 2.0 413 ± 41 144 ± 16 - 33.68 杨桐 Adinandra millettii 26.7 ± 2.3 376 ± 64 160 ± 12 - 39.88 格药柃 Eurya muricata 13.2 ± 1.1 302 ± 50 81 ± 6 - 31.43 狗脊蕨 Woodwardia japonica - 99 ± 6 - 60 ± 7 3.85 暗鳞鳞毛蕨 Dryopteris atrata - 64 ± 6 - 53 ± 7 3.41 湿地松林 Pinus elliottii forest 檵木 Loropetalum chinense 25.7 ± 1.7 244 ± 34 180 ± 11 - 36.39 杨桐 Adinandra millettii 20.3 ± 3.1 206 ± 21 118 ± 16 - 33.11 格药柃 Eurya muricata 19.6 ± 3.8 112 ± 25 106 ± 18 - 19.22 狗脊蕨 Woodwardia japonica - 86 ± 10 - 73 ± 8 4.15 暗鳞鳞毛蕨 Dryopteris atrata - 70 ± 4 - 38 ± 5 2.07