气候因子对青藏高原植被生长的时间效应

刘宁, 彭守璋, 陈云明

Temporal effects of climate factors on vegetation growth on the Qingzang Plateau, China

Ning LIU, Shou-Zhang PENG, Yun-Ming CHEN

表2 同时考虑时间滞后与累积效应下气温与降水在青藏高原各植被类型上的滞后和累加月份

Table 2 Time lag and accumulation months of air temperature and precipitation on each vegetation type on the Qingzang Plateau evaluated by models considering both time lag and accumulation effects

土地覆盖类型 Land cover type 样本数 No. of samples 气温 Air temperature 降水 Precipitation 滞后月份 Lag months 累加月份 Accumulation months 滞后月份 Lag months 累加月份 Accumulation months 常绿针叶林 Evergreen needleleaf forests 48 030 1.54 4.60 1.63 4.69 常绿阔叶林 Evergreen broadleaf forests 29 667 1.51 4.72 1.70 5.66 落叶阔叶林 Deciduous broadleaf forests 4 519 1.66 4.81 1.68 4.91 混交林 Mixed forests 50 746 1.56 4.72 1.69 5.20 稀疏灌丛 Sparse shrublands 7 125 1.94 4.89 1.50 4.72 木本稀树草原 Woody savannas 60 536 1.54 4.55 1.65 4.66 热带草原 Savannas 10 940 1.60 4.48 1.68 5.13 草地 Grasslands 1 433 101 1.61 4.32 1.45 5.19 永久性湿地 Permanent wetlands 404 1.41 4.48 1.51 4.49 耕地 Croplands 5 755 1.47 3.91 1.19 4.76