青海湖地区紫花针茅草原群落特征
岳鹏鹏1,2, 卢学峰2, 叶润蓉2, 周玉碧2, 杨仕兵2, 彭敏2*,*

Community characteristics of Stipa purpurea stepp in the Qinghai Lake region
YUE Peng-peng1,2, LU Xue-feng2, YE Run-rong2, ZHOU Yu-bi2, YANG Shi-bing2, PENG Min2
图4 研究区紫花针茅草原样带及环境因子的DCA排序图
Fig.4 The DCA ordination diagram of transects and environmental factors of S. purpurea steppe Altitude,海拔;Longitude,经度;Latitude,纬度;Temperat,年均温度Average annual temperature;Wetness,年均湿润度Degree of wetness;Precipit,年均降雨量Average annual precipitation;pH,土壤pH值 Soil pH;N,土壤全氮含量 Soil N;aN,土壤速效氮含量 Soil available N;P,土壤全磷含量 Soil P;aP,土壤速效磷含量 Soil available P;K,土壤全钾含量 Soil K;aK,土壤速效钾含量 Soil available K;organic,土壤有机质含量 Soil organic content;Moisture,土壤水分 Soil moisture;q1~q27指样号,Ⅰ~Ⅳ表示群丛类型。q1~q27 mean trinsect numbers. Ⅰ~Ⅳ indicate the ecological association. 下同 The same below.