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首页> 外文期刊>Indian Journal of Ecology >Tree-ring Width of Teak (Tectona grandis L. F.) and Its Relationship with Rainfall and Temperature
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Tree-ring Width of Teak (Tectona grandis L. F.) and Its Relationship with Rainfall and Temperature

机译:柚木(Tectona grandis L.F.)的树轮宽度及其与降雨和温度的关系

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摘要

Tree-ring chronologies of teak (Tectona grandis L.) at two sites, Mundagod and Shimoga, in Western Ghats of Karnataka were established. Both sites are influenced by climate varying with altitude and proximity to the Arabian sea and the equator. Mundagod is a dry deciduous forest area in North Karnataka where the south-west monsoon is crucial for the main rainy season. Shimoga is a moist deciduous forest area in Central Karnataka dominated by both south-west and north-east monsoon. According to our comparison of the tree-ring chronologies with the respective climate data, teak growth at Mundagod is negatively correlated with October rainfall of previous year and positively correlated with June to August rainfall of current year. At Shimoga, however,teak growth is positively associated with December rainfall of previous year and May to August rainfall of current year. Temperature during the pre-monsoon season, plays an important role for the onset of cambium activity at both sites.
机译:在卡纳塔克邦西高止山脉的两个站点,蒙达哥和下莫加,建立了柚木(Tectona grandis L.)的年轮年表。这两个地点都受到气候变化的影响,气候随海拔高度以及与阿拉伯海和赤道的距离而变化。蒙达哥(Mundagod)是北卡纳塔克邦北部的干燥落叶林区,西南季风对主要雨季至关重要。 Shimoga是卡纳塔克邦中部的湿润落叶林区,西南和东北季风均占主导地位。根据我们对树木年轮年代与相应气候数据的比较,蒙达哥的柚木生长与去年10月的降雨量呈负相关,与当年6月至8月的降雨量呈正相关。然而,在Shimoga,柚木的增长与去年12月的降雨和当年5月至8月的降雨成正相关。季风前季节的温度对于两个地点的形成层活动起着重要作用。

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