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根据从印度库茂恩(Kumaun)喜马拉雅纳尼塔尔(Naini Tal)温带地区获得的85 cm钻井的孢粉资料,恢复了1720+/-130年以来晚全新世古植被演变史,并推测了当地的古气候。当前孢粉资料说明了该地区当时发育有栎树混交林和波动的温暖湿润气候。孢粉组合序列的初始阶段,森林距沉积盆地较远。但是,由于气候变得更加温暖潮湿,森林也很快茂密起来。约1200年前,因气候恶化,森林变得稀疏。而在约124年前,气候再次转好。麦类及其他作物花粉资料证明农耕活动大约开始于1460年前左右。
Based on the sporopollen data from a 85 cm well obtained from the temperate zone of Naini Tal in Kumaun, India, the evolution of the late Holocene vegetation has been restored since 1720 +/- 130 years and speculated that local Ancient climate. Current sporopollen information indicates that there was a mixed oak forest and a fluctuating warm and humid climate in the area at that time. In the initial stage of the sequence of sporopollen assemblages, the forest is farther away from the sedimentary basin. However, as the climate becomes warmer and humidier, the forest quickly lushes. About 1,200 years ago, forests became sparse due to the deteriorating climate. And about 124 years ago, the climate got better again. Pollen data from wheat and other crops prove that farming activities started around 1460 BC.