西南高山亚高山区植被水分利用效率时空特征及其与气候因子的关系

周雄, 孙鹏森, 张明芳, 刘世荣

Spatio-temporal characteristics of vegetation water use efficiency and their relationships with climatic factors in alpine and subalpine area of southwestern China

ZHOU Xiong, SUN Peng-Sen, ZHANG Ming-Fang, LIU Shi-Rong

表3 西南高山亚高山区不同植被类型水分利用效率(WUE)与年降水量和年平均气温的相关系数分析表

Table 3 Correlation coefficients between annual water use efficiency (WUE) and annual precipitation, and correlation coefficients between WUE and annual air temperature of different vegetation types in the alpine and subalpine area of southwestern China

植被类型 Vegetation type 常绿针叶林 Evergreen needleleaf forest 常绿阔叶林 Evergreen broadleaf forest 落叶阔叶林 Deciduous broadleaf forest 混交林 Mixed forest 郁闭灌丛 Closed shrublands 有林草原 Woody savannas 稀树草原 Savannas 草地 Grassland 农田 Cropland WUE与降水量相关系数 Correlation coefficients between WUE and precipitation -0.633* -0.189 -0.406 -0.197 -0.591* -0.732** -0.705** -0.712** -0.704** WUE与气温相关系数 Correlation coefficients between WUE and air temperature 0.628* 0.255 0.599* 0.548* 0.808** 0.715** 0.513 0.814** 0.416