Climate warming causes intensification of the hydrological cycle, resulting in changes to the vernal and autumnal windows in a northern temperate forest
Climate warming causes intensification of the hydrological cycle, resulting in changes to the vernal and autumnal windows in a northern temperate forest
复制标题
DOI：
10.1002/hyp.10450
复制
发表时间：
2015-07-30
影响因子：
3.2
通讯作者：
Way, D.
中科院分区：
文献类型：
--
作者：
Creed, I. F.;Hwang, T.;Way, D.
气候变暖可能对温带森林生物群系的北部森林造成复杂的影响。我们调查了在安大略省中部的土耳其湖流域，气温上升是否改变了融雪和积雪积累的时间，或延长了森林生长季节的长度。利用存档的卫星图像跟踪积雪损失/增加和冠层叶片打开/关闭的时间变化；这些事件之间的时间被定义为春窗（spring）和秋窗（autumn）。我们发现只有生长季节轻微延长到秋季，春窗和秋窗的宽度没有增加，这表明森林生长在这些窗口期间对温度升高没有显著响应。一组嵌套集水区的温度、降水及流量数据的存档时间序列，由水源(
Climate warming is likely to lead to complex effects on northern forests of the temperate forest biome. We investigated whether rising temperatures altered the timing of snowmelt and snowpack accumulation or extended the forest growing season length in the Turkey Lakes Watershed in central Ontario. Archived satellite imagery was used to track changes in timing of snowpack loss/gain and canopy leaf on/off; the periods between these events were defined as the vernal (spring) and autumnal (fall) windows. We found only a slight extension of the growing season into the autumn period and no increase in the width of the vernal or autumnal windows, indicating that forest growth is not responding significantly to temperature increases during these windows. Archived time series of temperature, precipitation and discharge data for a nested set of catchments ranging in size from headwater (