2000—2020年黄河流域不同植被类型时空变化特征及其影响因素

魏潇, 张立峰, 何毅, 曹胜鹏, 孙强, 高秉海

2000-2020 spatiotemporal variations of different vegetation types in the Yellow River basin and influencing factors

WEI Xiao, ZHANG Lifeng, HE Yi, CAO Shengpeng, SUN Qiang, GAO Binghai

表6 黄河流域不同植被区当月NDVI与前0~3个月气温和降水的相关系数①

Tab.6 Correlation coefficients between NDVI in same month and temperature and precipitation in previous 0~3 months for different vegetation zones in Yellow River basin

植被类型 气候因子 NDVI与气候因子相关系数 4月 5月 6月 7月 8月 9月 草地 P0 0.462* 0.362 0.435* 0.706** 0.5* -0.146 P1 0.051 0.372* 0.431* 0.365 0.706* 0.415* P2 0.044 0.175 0.316 0.431* 0.202 0.507** P3 -0.081 -0.042 0.123 0.214 0.233 0.265 T0 0.598** -0.044 0.108 -0.214 0.443* 0.115 T1 0.634** 0.524** -0.094 0.196 -0.175 0.433* T2 0.054 0.457* 0.307 0.098 0.206 -0.381* T3 0.273 -0.006 0.359 0.276 0.211 -0.053 耕地 P0 0.481* 0.371* 0.092 0.444* 0.387* -0.039 P1 0.161 0.507** 0.297 0.006 0.433* 0.372* P2 -0.074 0.162 0.451* 0.395* -0.157 0.255 P3 -0.080 0.000 0.228 0.284 0.249 -0.087 T0 0.437* -0.238 -0.115 -0.304 0.42* 0.047 T1 0.488* 0.230 -0.172 -0.037 0.275 0.252 T2 0.048 0.085 0.153 -0.059 0.026 -0.437* T3 0.378 -0.007 0.195 0.226 -0.005 -0.136 灌木 P0 0.473* 0.441* 0.316 0.588** 0.406* -0.172 P1 0.132 0.413* 0.425* 0.19 0.631** 0.309 P2 0.081 0.277 0.320 0.477 0.053 0.502* P3 -0.093 -0.047 0.232 0.271 0.341 0.164 T0 0.662** -0.102 -0.015 -0.261 0.442* 0.109 T1 0.606** 0.497* -0.121 0.108 -0.268 0.392* T2 0.078 0.375* 0.345 0.100 0.093 -0.493* T3 0.206 0.049 0.283 0.298 0.128 -0.231 林地 P0 0.327 0.451* 0.019 0.377* 0.262 -0.135 P1 0.113 0.413* 0.379* -0.049 0.411* 0.253 P2 0.002 0.265 0.359 0.423* -0.162 0.312 P3 -0.182 0.031 0.321 0.304 0.253 0.009 T0 0.596** -0.202 -0.149 -0.321 0.414* 0.111 T1 0.439* 0.284 -0.196 -0.037 -0.299 0.285 T2 0.097 0.033 0.193 -0.112 -0.039 -0.482* T3 0.231 0.005 0.057 0.237 -0.029 -0.239