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Impacts of climate change on the yields of leguminous crops in the Guinea Savanna agroecological zone of Ghana

Regional Sustainability 2023年第2期4卷 139-149页

作者： Enoch YELELIERE Philip ANTWI-AGYEI Frank BAFFOUR-ATA Department of Environmental Science College of ScienceKwame Nkrumah University of Science and TechnologyKumasiGhana

The impacts of climate change on crop yields are receiving renewed interest,with focus on cereals and staple crops at the regional and national ***,the impacts of climate change on the yields of leguminous crops in the local context has not been ***,an in-depth understanding of climate change in the local context may support the design of locally relevant adaptation responses to current and future climate *** study examined the impacts of climate variables(annual rainfall,annual average temperature,rainfall indices(rainfall onset,rainfall cessation,and the length of rainy days),and the number of dry days)on the yields of leguminous crops(groundnuts,cowpeas,and soybeans)in the Guinea Savanna agroecological zone of Ghana during the period of *** data were analysed using Mann-Kendall’s trend,Sen’s slope test,correlation analysis,and Multiple Regression Analysis(MRA).The findings revealed that annual rainfall,annual average temperature,rainfall onset,rainfall cessation,and the length of rainy days,and the number of dry days all showed varied impacts on the yields of groundnuts,cowpeas,and *** trend analysis detected a marginal decrease in the amount of rainfall,rainfall onset,and the number of dry days from 1989 to 2020(P>0.050).annual average temperature and the length of rainy days substantially varied(Pannual rainfall,annual average temperature,rainfall onset,rainfall cessation,the length of rainy days,and

关键词： Climate change Leguminous crops(groundnuts,cowpeas,and soybeans) Guinea Savanna annual average temperature Rainfall indices Number of dry days

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Study on Cloud Change Trend in Southern China under the Influence of Climate Warming

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Meteorological and Environmental Research 2012年第6期3卷 1-4页

作者： LIN Ran LIU Lu-yang LIU Yang LIN Zhi-hua WU Guo-bin WU Guo-liang WU Guo-lin Beijing Institute of Technology Beijing 100081China North China Institute of Computing Technology Beijing 100083China Beijing L.D.Decoration Engineering Co. Ltd.Beijing 100083China Jiangxi Gas Compressor Company Limited Ganzhou 341000China 5.Jiangxi Howard Group Ganzhou 341000China Ganzhou Meteorological Bureau in Jiangxi Province Ganzhou 341000China

[ Objective] The research aimed to study influences of the climate warming on cloudage and cloud-like structure in southern China. [ Method] annual average temperature, total cloudage and low cloudage in Gan County, Nankang, Shangyou and Xinfeng of southern Jiangxi from 2004 to 2011 were selected. Influences of the annual average temperature change on annual average total cloudage, annual average low cloudage and cloud-like structure in southern Jiangxi were analyzed. [ Result] Climate warming was affecting cloudage and cloud-like structure in southern China. When annual average temperature rose, annual average total cloudage and low cloudage both presented decrease trends. When annual av- erage temperature declined, annual average total cloudage and low cloudage both presented rise trends. When annual average temperature was equal to that in prior year at low point, annual average total cloudage and low cloudage increased. annual average low cloudage was different in mountain area and basin. Influences of the annual average temperature on annual average total cloudage and low cloudage in basin at the low alti- tude presented slow fluctuation form, and had severe influence on that in mountain area at the high altitude. Rise of the annual average temperature had larger influence on high cloudage, while decline of the annual average temperature had larger influence on annual average low cloudage. Under different weather situations, formation and disappearance change of the low cloud had different manifestation forms. [ Conclusion] The research provided scientific basis for studying changes of the cloudage and cloud-like structure in southern China as climate warming.

关键词： annual average temperature annual average total cloudage annual average low cloudage Cloud-like structure Climate characteristic China

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