期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：2007
卷号：18
期号：4
页码：354-358
DOI：10.1684/sec.2007.0113
出版社：John Libbey Eurotext
摘要：Figures See all figures Authors Ali Mahamane , Saadou Mahamane , Jean Lejoly Laboratoire de botanique systématique et de phytosociologie, Université libre de Bruxelles (ULB), CP 169, 50 avenue FD Roosevelt, B-1050 Bruxelles, Belgique, Département de biologie, Faculté des Sciences, Université Abdou Moumouni, BP 10662, Niamey, Niger Key words: hygrometry, Niger, phenology, rainfall, woody species DOI : 10.1684/sec.2007.0113 Page(s) : 354-8 Published in: 2007 The phenology of 28 woody species in the W national park, Niger, is analysed. The phenological stages monitored are leafing, flowering and fruiting. According to the phenological characteristics, the species are classified into 4 groups: evergreen, semi-evergreen, deciduous with a short fruiting period and deciduous with a long fruiting period. The phenological stages are under the control of variations in air moisture determined by flows of the monsoon. Therefore, bushfires lit from October to December cause regrowth of green plants used by fauna as food during the dry season. The periods during which such regrowth can be effective varies according to the geomorphology of the region.
关键词：hygrometry; Niger; phenology; rainfall; woody species
