中国温带荒漠植物群落生态特异性格局及其影响因素

王健铭, 雷训, 冯益明, 吴波, 卢琦, 何念鹏, 李景文

The ecological uniqueness of plant communities and their determinants across the temperate deserts of China

Jianming Wang, Xun Lei, Yiming Feng, Bo Wu, Qi Lu, Nianpeng He, Jingwen Li

表1 单个环境因子与植物群落生态特异性的关系

Table 1 Relationship between the ecological uniqueness of plant communities and single environmental variable

变量 Variable R2 斜率 Slope P 物种丰富度 Species richness (SR) 0.044 US < 0.0001 植物群落盖度 Plant community coverage (PCC) 0.036 US < 0.0001 土壤含水量 Soil moisture (SM) 0.018 0.00002 < 0.0001 土壤总氮含量 Soil total nitrogen content (TSN) 0.039 0.00003 < 0.0001 土壤pH值 Soil pH (pH) 0.080 US < 0.0001 年均温 Mean annual temperature (MAT) 0.037 US < 0.0001 年均降水量 Mean annual precipitation (MAP) 0.074 US < 0.0001 降水季节性 Precipitation seasonality (PS) 0.166 -0.396 < 0.0001 太阳辐射强度 Solar radiation (SRAD) 0.123 US < 0.0001