二代野猪放牧对夹金山针阔混交林物种多样性与土壤理化性质的影响

郝建锋, 周润惠, 姚小兰, 喻静, 陈聪琳, 向琳, 王姚瑶, 苏天成, 齐锦秋

Effects of the second generation wild boar grazing on species diversity and soil physicochemical properties of coniferous-broad-leaved mixed forest in Jiajin Mountain, China

HAO Jian-Feng, ZHOU Run-Hui, YAO Xiao-Lan, YU Jing, CHEN Cong-Lin, XIANG Lin, WANG Yao-Yao, SU Tian-Cheng, QI Jin-Qiu

表3 夹金山针阔混交林物种多样性与土壤理化因子的冗余分析(RDA)排序及蒙特卡洛置换检验结果

Table 3 Results of redundancy analysis sequencing and Monte-Carlo permutation test on species diversity and soil physicochemical properties of coniferous- broad-leaved mixed forest in the Jiajin Mountain

土壤理化因子 Soil physicochemical factor RDA 1 RDA 2 F 解释变异量 Explains variation (%) p 有机质含量 Organic matter content -0.862 3 0.103 3 25.1 58.2 0.002** 有效磷含量 Available phosphorus content -0.840 8 -0.083 9 22.3 55.4 0.002** 土壤密度 Soil density 0.812 6 0.132 1 19.4 51.9 0.002** 土壤含水量 Soil water content -0.698 0 -0.138 2 11.4 38.9 0.002** 土壤孔隙度 Soil porosity -0.640 2 -0.266 3 8.7 32.6 0.004** 全磷含量 Total phosphorus content -0.634 7 0.209 7 8.5 32.0 0.004** 全氮含量 Total nitrogen content -0.578 9 -0.304 3 6.8 27.3 0.006** pH -0.426 3 0.400 1 3.4 15.8 0.062 特征参数 Characteristic parameter 特征值 Eigenvalues 0.708 2 0.047 0 累积解释变异 Explained variation (%) 70.82 75.51 多样性-土壤因子关系的累积解释量 Cumulative explanatory quantity of relationship between diversity and soil factors (%) 88.56 94.43