Rainfall and the length of the growing season in Nigeria
Rainfall and the length of the growing season in Nigeria
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DOI：
10.1002/joc.1012
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发表时间：
2004-03-30
期刊：
影响因子：
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通讯作者：
Odekunle, TO
中科院分区：
文献类型：
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作者：
Odekunle, TO
本研究探讨了生长季节的长度在尼日利亚使用Ikeja，翁多，弗洛林的日降雨量数据。卡杜纳和卡诺。这些数据是从尼日利亚气象局（Oshodi，拉各斯）的at-chives收集的。生长季节的长度是使用累积百分比平均降雨量和日降雨量概率方法确定的。虽然Ikeja、Ondo、Ilorin、卡杜纳和卡诺的降雨似乎分别在3月第二个旬末、3月第三个旬中、4月中旬、5月第一个旬末和6月初开始，其在各站点的分布特征仍不足以满足作物发芽、定植的需要。5月2旬末、5月3旬初、5月3旬中旬、5月底和7月1旬末为主要的发展时期。此外，各站的降雨量似乎分别从10月第3个旬初、10月第3个旬初、10月第1个旬末、9月下旬和9月第2个旬初开始消退，但其分布特征仅在10月第2个旬末、10月第2个旬末前后才能维持各站作物生长所需的降雨量。分别为10月上旬中旬、10月上旬、9月上旬中旬。因此，生长季节的活动长度分别约为5个月、5个月、4个月、4个月和2个月。耐短期干旱的植物可能在雨季早期茁壮成长，即在3月第二个旬末至5月第二个旬末之前（在Ikeja），3月第三个十月中旬至5月第三个十月初（在Ondo），4月中旬至5月第三个十月中旬（在伊洛林）、5月第一个旬末至5月底（在卡杜纳）和6月初至7月第一个旬末（在卡诺），但其他耐受性较差的植物应从5月第二个旬末开始种植。分别为5月上旬、5月中旬、5月底和7月上旬。推荐采用日降雨量概率法，该方法能更有效地估计开花期的性质和长度。版权所有（D 2004皇家气象学会。
This study examines the length of the growing season in Nigeria using the daily rainfall data of Ikeja, Ondo, florin. Kaduna and Kano. The data were collected from the at-chives of the Nigerian Meteorological Services, Oshodi, Lagos. The length of the growing season was determined using the cumulative percentage mean rainfall and daily rainfall probability methods.Although rainfall in Ikeja, Ondo, Ilorin, Kaduna, and Kano appears to commence around the end of the second dekad of March, middle of the third dekad of March, mid April, end of the first dekad of May, and early June respectively, its distribution characteristics at the respective stations remain inadequate for crop germination, establishment. and development till the end of the second dekad of May, early third dekad of May, mid third dekad of May, end of May, and end of the first dekad of July respectively. Also, rainfall at the various stations appears to retreat starting front the early third dekad of October, early third dekad of October, end of the first dekad of October, end of September, and early second dekad of September respectively, but its distribution characteristics only remain adequate for crop development at the respective stations till around the end of the second dekad of October, end of the second dekad of October, middle of the first dekad of October, early October, and middle of the first dekad of September respectively. Thus, the active lengths of the growing season are approximately 5 months, 5 months, 4 months, 4 months, and 2 months respectively. Plants that are short-dry-spell tolerant may thrive early in the rainy season, i.e. front the end of the second dekad of March to the end of the second dekad of May (in Ikeja), middle of the third dekad of March to the early third dekad of May (in Ondo), mid April to the middle of the third dekad of May (in Ilorin), end of the first dekad of May to end of May (in Kaduna), and early June to the end of the first dekad in July (in Kano), but other less tolerant plants should be planted starting from the end Of the second dekad of May. early third dekad of May, mid third dekad of May, end of May, and end of the first dekad Of July respectively. The daily rainfall probability method is recommended Lis more efficient in the assessment of the nature and length of the gowing season. Copyright (D 2004 Royal Meteorological Society.