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Mapping and Floristic Diversity of the Nakpadjouak Community Forest, Tami Canton, Togo (West Africa)

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Natural Resources 2024年第4期15卷 83-105页

作者： Senyo Kossi Ehlui Christian Anthony-Krueger Edinam Kola Wouyo Atakpama Alagie Bah Henrik von Wehrden Tchaa Boukpessi West Africa Science Service Center on Climate Change and Adapted Land Use WASCAL University of the Gambia Banjul Gambia laboratoire de Recherche sur la dynamique des Milieux et des Socié t&#233s Department of Geography University of Lom&#233 Lome Togo department of Science Education University of Cape Coast Cape Coast Ghana laboratoire de Botanique et É cologie V&#233g&#233tale D&#233partement botanique Facult&#233 des sciences Universit&#233 de Lom&#233 Lome Togo West Africa Plant Red List Authority (WAPRLA) IUCN Species Survival Commission Gland Switzerland Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF) Nairobi Kenya Faculty of Sustainability Center of Methods Leuphana University of L&#252neburg L&#252neburg Germany laboratoire de Recherches Biogé ographiques et d&#8217Etudes Environnementales Department of Geography University of Lome Lome Togo

Since 2015, community forests have been promoted in Togo as an alternative to protect areas from degradation and as a means of contributing to forest landscape restoration. The study focuses on the Nakpadjouak Community Forest (NCF) in Tami (Togo, West Africa) which contributes to community forests sustainable management. It aims in (i) mapping forest ecosystems and analysing their dynamic and (ii) characterizing the floristic diversity of the NCF. The ecosystems were mapped and their dynamic was evaluated based on Google Earth images of 2014 and 2020. Floristic and forestry inventories were carried out using the transect technique in a sample of 20 plots of 50 m × 20 m. The NCF was made up mainly by wooded/shrub savannahs (95.37%) and croplands/fallow (4.63%) in 2014. These two land use types undergone changes over the 6 years prior to 2020. By 2020, the NCF had 3 land use types: wooded/shrub savannahs (77.59%), open forest/wooded savannahs (22.23%), and croplands/fallows (0.18%). A total of 89 plant species belonging to 70 genera and 28 families were recorded within the NCF. The dominant species are: Heteropogon contortus (L.) ***. and Combretum collinum Fresen. followed by Pteleopsissuberosa Engl. & Diels, Annona senegalensis Pers. The most common species are: Lannea acida ***. s.l., A. senegalensis, Vitellaria paradoxa *** subsp. paradoxa, C. collinum and Acacia dudgeonii Craib ex Holland. Due to its small area of just 40 hectares and its diverse plant life, this community forest of Savannahs Region is a significant biodiversity hotspot and warrants conservation efforts.

关键词： Community Forest Floristic Diversity Land Use Change Biodiversity Hotspot Tami Savannah Region Togo

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统一框架下中国气候预估多模式集合策略对比

中国科学：地球科学 2023年第9期53卷 2155-2171页

作者：朱欢欢江志红李肇新李伟姜胜周攀宇赵暐昊李童南京信息工程大学气象灾害教育部重点实验室气象灾害预报预警与评估协同创新中心南京210044 laboratoire de Météorologie dynamique CNRSSorbonne UniversitéEcole Normale SupérieureEcole PolytechniqueParis 75005France 南京信息工程大学数学与统计学院南京210044

科学可靠的未来预估对气候变化适应和相关政策的制定具有重要意义.多模式集合是实现该目标的有效途径之一.但是,目前研究中鉴于关注的目标对象、时空尺度以及所用模式库的不同导致集合方案效果存在差异,不同方案间难以直接相互比较.因... 详细信息

科学可靠的未来预估对气候变化适应和相关政策的制定具有重要意义.多模式集合是实现该目标的有效途径之一.但是,目前研究中鉴于关注的目标对象、时空尺度以及所用模式库的不同导致集合方案效果存在差异,不同方案间难以直接相互比较.因此本文构建了统一的框架来评估比较5种不同集合方案在中国区域的性能,具体集合方案为多模式集合平均(MME)、秩加权、可靠性集合平均、结合模式性能和独立性加权(ClimWIP)以及贝叶斯模型平均方案.同时分析了全球变暖1.5℃和2℃温控目标下(相对工业化前,1861~1900年),中国全域及7个分区的年平均温度和总降水量相对于当前(1995~2014年)的未来变化.结果表明:与MME相比,加权集合方案预估平均温度和总降水量中位数变化的一致性较好,且降低了不确定性,提高了信噪比(SNR).其中ClimWIP方案综合最优,其预估中国区域温度不确定性减幅达30%,总降水减幅约15%.不同区域和指数的预估可靠性不同,温度的可靠性大于降水.基于优选的ClimWIP方案的预估结果表明,全球变暖1.5℃和2℃下,相对于当前气候(1995~2014年),中国区域年平均温度增加约1.1℃和1.8℃,总降水增加约5.4%和11.2%.其中东北地区增温最强,增幅(集合样本中位数,括弧内为第10到90分位数区间,下同)达1.3(0.6~1.7)和2.0(1.4~2.6)℃,华北和西北次之.西南地区温度预估增幅较弱但最可靠.西北地区总降水量增加最大,全球变暖1.5℃和2℃下增幅为9.1%(–1.6~24.7%)和17.9%(0.5~36.4%),华北次之,西南地区总降水量变化不确定性大,信噪比最小.额外0.5℃增暖对中国气候产生显著影响,整个中国地区温度的增幅将超过全球平均值,总降水量也将进一步增加,其中西北增湿最强.

关键词：多模式模拟集合方案全球变暖温控目标气候预估不确定性中国区域气候变化

Erratum to:Effect of the synthesis route on the structural and dielectric properties of SrBi1.8Y0.2Nb2O9 ceramics

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International Journal of Minerals,Metallurgy and Materials 2020年第11期27卷 1568-1568页

作者： Mohamed Afqir Amina Tachafine Didier Fasquelle Mohamed Elaatmani Jean-Claude Carru Abdelouahad Zegzouti Mustapha El Hammioui laboratoire des Sciences des Matériaux Inorganiques et leurs Applications Facultédes Sciences SemlaliaUniversitéCadi AyyadMarrakech40000Maroc Unitéde dynamique et Structure des Matériaux Moléculaires Universitédu Littoral-Côte d’OpaleCalais62100France laboratoire de recherche sur la réactivitédes matériaux et l’optimisation des procédés Facultédes Sciences SemlaliaUniversitéCadi AyyadMarrakech40000Maroc

The original version of this article unfortunately contained a mistake. In the Table 1, the values of volume are not correct.

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Trend Analysis in Rainfall, Reference Evapotranspiration and Aridity Index in Southern Senegal: Adaptation to the Vulnerability of Rainfed Rice Cultivation to Climate Change

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Atmospheric and Climate Sciences 2017年第4期7卷 476-495页

作者： Komlan Koudahe Koffi Djaman Ansoumana Bodian Suat Irmak Mamadou Sall Lamine Diop Alpha B. Balde Daran R. Rudnick Direction des Filières Végétales (DFV) MAEH Lomé Togo department of Plant and Environmental Sciences New Mexico State University Agricultural Science Center at Farmington Farm-ington NM USA laboratoire Leïdi “dynamique des territoires et développement” Université Gaston Berger (UGB) Saint Louis Sénégal department of Biological Systems Engineering University of Nebraska-Lincoln Chase Hall Lincoln NE USA Research Scientist Institut Senegalais de Recherches Agricoles Centre de Saint Louis Saint Louis Sénégal UFR S2ATA Université Gaston Berger (UGB) Saint Louis Sénégal Institut Sénégalais de Recherches Agricoles Bambey Sénégal

Rainfall and evapotranspiration are two vital elements for food production under rainfed agriculture. This study aims at investigating the combined changes in these variables in the form of aridly index in the southern Senegal. The temporal trends in annual and monthly (from May to October) aridity index, rainfall and evapotranspiration are examined and adaptation strategies to the vulnerability of rainfed rice cultivation to the changes are developed. The results show a significant decreasing trend in annual rainfall at all study locations for the period 1922-2015. When analyzing the trends in sub-periods, there are two clear patterns in the annual rainfall series: a decreasing trend for the period 1922-1979 and a reversal increasing trend for the period 1980-2015. An increasing trend is also observed in annual reference evapotranspiration. The results reveal that the region will be drier with a significant increase in aridity at the annual and most monthly series. Appropriate adaptation strategies should be implemented to diminish the adverse influence of the increasing aridity on rice productivity for a sustainable agriculture.

关键词： Variation Evapotranspiration Rainfall Aridity Index Senegal Rainfed Rice

Recent advancements in aircraft and in situ observations of tropical cyclones

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Tropical Cyclone Research and Review 2023年第2期12卷 81-99页

作者： Heather M.Holbach Olivier Bousquet Lisa Bucci Paul Chang Joe Cione Sarah Ditchek Jim Doyle Jean-Philippe Duvel Jack Elston Gustavo Goni Kai Kwong Hon Kosuke Ito Zorana Jelenak Xiaotu Lei Rick Lumpkin Clive R.McMahon Christopher Reason Elizabeth Sanabia Lynn Keith Shay Jason A.Sippel Andrey Sushko Jie Tang Kazuhisa Tsuboki Hiroyuki Yamada Jonathan Zawislak Jun A.Zhang Florida State University Northern Gulf InstituteTallahasseeUSA NOAA/OAR/Atlantic Oceanographic and Meteorological Laboratory MiamiUSA laboratoire de L’Atmosphere et des Cyclones Sainte ClotildeFrance Institute for Coastal and Marine Research Nelson Mandela UniversityGqeberhaSouth Africa NOAA/NWS/National Hurricane Center MiamiUSA NOAA/National Environmental Satellite Data and Information ServiceCollege ParkUSA Cooperative Institute for Marine and Atmospheric Studies University of MiamiMiamiFLUSA Naval Research Laboratory MontereyUSA laboratoire de Meteorologie dynamique ParisFrance Black Swift Technologies BoulderUSA Hong Kong Observatory Hong KongChina Disaster Prevention Research Institute Kyoto UniversityGokashoJapan University of the Ryukyus OkinawaJapan University Corporation for Atmospheric Research BoulderUSA Shanghai Meteorological Service ShanghaiChina Sydney Institute of Marine Science MosmanAustralia University of Cape Town RondeboschSouth Africa United States Naval Academy AnnapolisUSA University of Miami MiamiUSA Windborne Systems Palo AltoUSA Asia-Pacific Typhoon Collaborative Research Center ShanghaiChina Shanghai Typhoon Institute CMAShanghaiChina Nagoya University NagoyaJapan Yokohama National University YokohamaJapan NOAA/OMAO/Aircraft Operations Center LakelandUSA1

Observations of tropical cyclones(TC)from aircraft and in situ platforms provide critical and unique information for analyzing and forecasting TC intensity,structure,track,and their associated *** report,prepared for the tenth International Workshop on Tropical Cyclones(IWTC-10),discusses the data collected around the world in TCs over the past four years since the IWTC-9,improvements to observing techniques,new instruments designed to achieve sustained and targeted atmospheric and oceanic observations,and select research results related to these *** the Atlantic and Eastern and Central Pacific basins,changes to operational aircraft reconnaissance are discussed along with several of the research field campaigns that have taken place *** changes in the use and impact of these aircraft observations in numerical weather prediction models are also provided along with updates on some of the experimental aircraft *** from three field campaigns in the Western Pacific basin are also *** of in-situ data collected within recent TCs such as Hurricane Ian(2022),also demonstrate that new,emerging technologies and observation strategies reviewed in this report,definitely have the potential to further improve ocean-atmosphere coupled intensity forecasts.

关键词： Tropical cyclones Aircraft observations In situ observations IWTC-10

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Preface

Communications on Applied Mathematics and Computation 2024年第3期6卷 1519-1520页

作者： W.Boscheri F.Chinesta R.Loubere S.Mishra G.Puppo M.Ricchiuto C.-W.Shu laboratoire de Mathématiques UMR 5127 CNRS UniversitéSavoie Mont Blanc73376 Le Bourget-du-LacFrance ESI Group Chair PIMM Lab Arts et Métiers Institute of Technology151 Boulevard de l’HôpitalF-75013 ParisFrance Institut de Mathématiques de Bordeaux(IMB)UMR 5251 CNRS Universitéde Bordeaux351 cours de la Libération33405 Talence CedexFrance Seminar for Applied Mathematics Department of Mathematicsand ETH AI CenterETH ZurichRämistrasse 1018092 ZurichSwitzerland Dipartimento di Matematica Sapienza Universitàdi RomaP.le Aldo Moro 500185 RomeItaly INRIA Universitéde BordeauxCNRSBordeaux INPIMB UMR 5251200 Avenue de la Vieille Tour33405 Talence CedexFrance Division of Applied Mathematics Brown UniversityProvidenceRI 02912USA

This focused issue of the Communications on Applied Mathematics and Computation is in Honour of Prof.Rémi Abgrall on the Occasion of His 61th Birthday.Rémi Abgrall has been a student in mathematics(1981–1985)of Ecole Normale Supérieure de Saint Cloud(now part of ENS Lyon).After his studies in pure mathematics,he changed orientation toﬂuid *** did his PhD at the laboratoire de Météorologie dynamique(LMD)at Ecole Normale Supérieure under the supervision of Claude *** graduated in december 1987 with a thesis on a semi-Lagrangian model of 2D turbulence,refereed by Olivier Pironneau and Marcel Lesieur.

关键词： has turbulence Les