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原文連結
論文資訊
- 類型：已發表論文
- 日期：2003
摘要
We integrated experimental and natural gradient field methods to investigate effects of 氣候 change and variability on flowering phenology of 11 subalpine meadow shrub, forb, and graminoid 物種 in Gunnison County, Colorado (USA). At a subalpine meadow site, overhead electric radiant heaters advanced snowmelt date by 16 d and warmed and dried soil during the growing season. At three additional sites, a snow removal manipulation advanced snowmelt date by 7 d without altering growing season soil micro氣候. We compared phenological responses to experimental 氣候 change with responses to natural micro氣候 variability across spatial gradients at small and landscape scales, as well as across a temporal gradient from a separate study. Both manipulations significantly advanced timing of flowering for the gro
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