Dryland Holocene vegetation history, Central Otago and the Mackenzie Basin, South Island, New Zealand
Dryland Holocene vegetation history, Central Otago and the Mackenzie Basin, South Island, New Zealand
复制标题
新西兰南岛中奥塔哥和麦肯齐盆地的旱地全新世植被历史
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
N. Moar
中科院分区：
文献类型：
--
作者：
M. McGlone;N. Moar
摘要花粉和木炭分析来自南岛中南部的三个全新世沉积物。在Idaburn山谷的一个春季沼泽地记录了从c. 7100年B. P.，当泥炭生长开始，到5000年B. P.之后，谷底植被变得越来越短和开放，沼泽停止增长，可能是由于越来越干旱的夏天。邻近的丘陵地区支持一个森林/灌木丛覆盖的Podocarpus hallii，Phyllocladus alpinus，Halocarpus bidwillii和小叶灌木。在普卡基湖附近的麦肯齐盆地的一个地点记录了来自c. 8000年B. P.，直到5000年B. P.之后的时间Halocarpus bidwillii，Aciphylla，草地变得越来越重要，在应对干旱和当地火灾。在第三个地点，也是在麦肯齐盆地，Halocarpus bidwillii形成了一个完整的灌木覆盖在毛利人定居的时间在abo.
Abstract Pollen and charcoal analyses are presented from three south‐central South Island Holocene age deposits. A spring bog site in the Idaburn Valley records small‐leaved Olearia scrub and grassland in its immediate vicinity from c. 7100 yr B.P., when peat growth began, to 5000 yr B.P. After that date the valley bottom vegetation became increasingly short and open, and the bog ceased growing, probably as a result of increasingly droughty summers. The adjacent hilly country supported a forest/scrub cover of Podocarpus hallii, Phyllocladus alpinus, Halocarpus bidwillii, and small‐leaved shrubs. A site in the Mackenzie Basin near Lake Pukaki recorded near total dominance by Phyllocladus alpinus scrub from c. 8000 yr B.P. until 5000 yr B.P. after which time Halocarpus bidwillii, Aciphylla, and grassland became increasingly important in response to drought and local fires. At a third site, again in the Mackenzie Basin, Halocarpus bidwillii formed a complete scrub cover at the time of Maori settlement at abo...