中文摘要：

植被物候学上的气候变化的影响是在当前的气候变化学习的一个激烈的问题。我们使用了 GIMMS-3g NDVI 数据从 1982 ～ 2012 在西藏的高原(TP ) 上检测成长季节(SGS ) 的开始的时间空间的动力学并且与温度和降水分析它的关系。没有重要趋势在学习时期期间在地区性的规模在 SGS 被观察(R ²= 0.03， P = 0.352 ) 。然而，与可看作是相同的、显然不同的趋势有三个次时期(1982-1999， 1999-2008 和 2008-2012 ) 。有一个重要进展趋势的区域主要在整个潮湿、半潮湿的区域被散布，而有一个重要推迟趋势的区域主要在整个半干旱的区域被散布。统计分析证明到气候变化的 SGS 的反应空间地变化。SGS 显著地在相对潮湿的区域与春天温度和热生长季节(STGS ) 的开始被相关。与增加干旱，为 SGS 的春天温度的重要性逐渐地减少了。然而，降水的影响和 SGS 上的冬季温度越过高原是复杂的。

英文摘要：

The influence of climate change on vegetation phenology is a heated issue in current climate change study. We used GIMMS-3g NDVI data to detect the spatio-temporal dynamics of the start of the growing season （SGS） over the Tibetan Plateau （TP） from 1982 to 2012 and to analyze its relationship with temperature and precipitation. No significant trend was observed in the SGS at the regional scale during the study period （R2 = 0.03, P = 0.352）. However, there were three time periods （1982-1999, 1999-2008 and 2008-2012） with identifiable, distinctly different trends. Regions with a significant advancing trend were mainly scattered throughout the humid and semi-humid areas, whereas the regions with a significant delaying trend were mostly distributed throughout the semi-arid areas. Statistical analysis showed that the response of the SGS to climate change varies spatially. The SGS was significantly correlated with the spring temperature and the start of the thermal growth season （STGS） in the relatively humid area. With increasing aridity, the importance of the spring temperature for the SGS gradually decreased. However, the influences of precipitation and winter temperature on the SGS were complicated across the plateau.