摘要
干旱是世界农业发展中主要的障碍因子之一,严重威胁着国家粮食安全和生态可持续发展,生物炭是一种富含碳的生物质再生产物,作为一种高效的土壤改良剂,不仅能改善土壤理化结构,提高土壤持水能力,同时缓解干旱胁迫对作物的负面效应。综述了生物炭缓解作物干旱胁迫效应的研究成果,包括促进作物生长发育、增强作物抵御干旱能力、改善土壤理化特性和微生物学特性等,重点阐述生物炭特性与缓解干旱胁迫效应之间的联系和关键机制。最后初步阐述国内外研究存在的差异和需要加强的方面,并展望了生物炭在缓解干旱胁迫方面的应用潜力,旨在为生物炭的进一步推广应用提供理论依据和参考。
Drought is one of the important restrictions to agriculture development all over the world,which seriously threatens national food security and ecological sustainable development.Biochar is a kind of biomass regeneration product and it is rich in carbon.As an outstanding soil amendment,it can not only improve the physical and chemical structure of soil,improve the soil water retention,but also alleviate the negative effects of drought stress on crops.This study reviewed the research achievements of biochar in alleviating crop drought stress,including promoting crop growth and development,enhancing crop resistance to drought,improving soil physicochemical and microbiological characteristics,and so on.Moreover,it focused on elucidating the relationship and key mechanisms between biochar characteristics and its role on alleviating drought stress.Finally,it discussed the differences of research at home and abroad as well as areas that need to be strengthened,and also looked forward to the future potential of biochar application in alleviating drought stress,thereby providing theoretical basis and reference for the further promotion and application of biochar.
作者
翟必宇
王娟
ZHAI Bi-yu;WANG Juan(College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225009,Jiangsu Province,China)
出处
《节水灌溉》
北大核心
2024年第3期75-82,共8页
Water Saving Irrigation
基金
国家自然科学基金项目(51609209)
江苏省自然科学基金项目(BK20160471)。
