Rainfall Characteristics of Tropical Rainforest at Pasoh Forest Reserve, Negeri Sembilan, Peninsular Malaysia
Rainfall Characteristics of Tropical Rainforest at Pasoh Forest Reserve, Negeri Sembilan, Peninsular Malaysia
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马来西亚半岛森美兰巴索森林保护区热带雨林降雨特征
DOI：
10.1007/978-4-431-67008-7_4
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Tani
中科院分区：
文献类型：
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作者：
S. Noguchi;A. Nik;M. Tani
我们调查了马来西亚半岛Pasoh森林保护区（Pasoh FR）的降雨量。Pasoh FR位于西南降雨区，平均年降雨量（1，500 - 2，000 mm）低于马来西亚半岛的其他地区。1996年和1997年的月降雨量为2.2至206.7毫米，平均为115.6毫米。最长的干旱日数为49天。干旱期和降雨量的波动是影响植被生长的主要因素。一个明显的降雨日周期，其中52%的降雨发生在13：00和19：00之间，是显而易见的。各事件的降雨量频率呈倒J型分布。一次降雨的降雨量范围为1.2至93.1 mm，平均值为11.4 mm，中位数为5.6 mm。降雨的特点是持续时间短（范围：1.0-22.0 h，平均值：3.8 h）和强度高。降雨过程中的最大小时降雨强度范围为0.6至63.8 mm h-1，平均值为7.8 mm h-1，中位数为3.8 mm h-1。
We investigated the rainfall at the Pasoh Forest Reserve (Pasoh FR), Peninsular Malaysia. Pasoh FR is located in the Southwest rainfall regime, in which the average annual rainfall (1,500–2,000 mm) is less than that in other regions of Peninsular Malaysia. Monthly rainfall in 1996 and 1997 ranged from 2.2 to 206.7 mm with a mean of 115.6 mm. The rainfall in 1997 was much smaller due to the El Niño Southern-Oscillation (ENSO) event. The longest period of dry days was 49 days. Dry periods as well as fluctuation in rainfall are major factors affecting the growth of vegetation. A distinct diurnal cycle in rainfall, in which 52% of the rainfall occurred between 13:00 and 19:00 h, was apparent. The frequency of the amount of rainfall in each event was an inverse J-shaped type distribution. The amount of rainfall in one event ranged from 1.2 and 93.1 mm with a mean of 11.4 mm and a median of 5.6 mm. The rainfall was characterized by a short duration (range:1.0-22.0 h, mean: 3.8 h) and high intensity. The maximum hourly rainfall intensity during a rain event ranged from 0.6 to 63.8 mm h-1with a mean of 7.8 mm h-1and a median of 3.8 mm h-1.