Climate variability and crop yields synergies in Tanzania’s semiarid agroecological zone

作     者：Msafiri Y.Mkonda Xinhua He 

作者机构：Centre of Excellence for Soil BiologyCollege of Resources and EnvironmentSouthwest UniversityChongqingChina Department of Geography and Environmental StudiesSolomon Mahlangu College of Science and EducationSokoine University of AgricultureMorogoroTanzania School of Biological SciencesUniversity of Western AustraliaCrawleyAustralia 

出 版 物：《Ecosystem Health and Sustainability》 (生态系统健康与可持续性（英文）)

年 卷 期：2018年第4卷第3期

页      面：1-15页

核心收录：

学科分类：0710[理学-生物学] 02[经济学] 0202[经济学-应用经济学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0713[理学-生态学] 

基　　金：We are indebted to the Chinese Govemment Scholarship(CSC)for providing a scholarship to Mr.Msafri Y.Mkonda.We also wish to thank the research assi stants who were involved in data collection.The study was funded by the College of Resources and Environment Southwest University and Chongqing Municipal Innovative Talents Program. 

主　　题：Climate variability crop yields environmental sustainability vulnerability Tanzania 

摘      要：smallholders in most of Sub-Saharan Africa.These impacts have been more enormous to crop production and other attached livelihoods.However,the comprehensive assessment of these impacts has suffered numerous challenges because crop productivity is also susceptible to other factors involved in the production process.This study aimed to understand how crop yields are affected by climate change in the semiarid zone of Tanzania.The findings would establish a thorough literature within smallholder adaptation in the area.Furthermore,they will intensify strategies to cope with reduced yields attributed by climate-change impacts.Outcomes:There has been a dramatic decrease in rainfall(R^(2)=0.21)and increase in temperature(R^(2)=0.30).In addition,we found that rainfall and temperature variability had positive(R^(2)~0.5)and negative(R^(2)~0.3)correlations with crop yields,respectively.Discussion:The decline in yields at both local and national levels elevated the magnitude of food shortage and poverty.The increasing climate impacts necessitate undertakings of various studies to plan,design,recommend,and implement various useful adaptation measures,especially in the vulnerable communities.Conclusion:To limit climate effects,we need to increase investments in adaptation and mitigation measures.