祁连山区演替先锋物种西藏沙棘的种群结构及动态对海拔梯度的响应

卢晶, 马宗祺, 高鹏斐, 樊宝丽, 孙坤

Changes in the Hippophae tibetana population structure and dynamics, a pioneer species of succession, to altitudinal gradients in the Qilian Mountains, China

LU Jing, MA Zong-Qi, GAO Peng-Fei, FAN Bao-Li, SUN Kun

表2 祁连山区不同海拔西藏沙棘种群存活曲线拟合方程

Table 2 Calculated equations of survival curves of Hippophae tibetana populations at different altitudes in the Qilian Mountains

海拔 Altitude 方程 Equation R2 F p 低 Low y = 13.712e-0.125x 0.807 17.724 0.024 y = 14.454x-0.420 0.636 7.986 0.066 中 Middle y = 10.867e-0.147x 0.961 99.555 0.002 y = 11.881x-0.514 0.861 25.819 0.015 高 High y = 19.451e-0.417x 0.905 39.069 0.008 y = 26.450x-1.501 0.874 28.852 0.013