本文报道了百合科重楼属植物七叶一枝花Paris polyphylla Smith var.chinensis Hara、滇重楼P.polypylla Smith var.yunnanensis Hand.-Mazz.、狄叶重楼P.polyphylla Smith var.stenophylla Franch.、多叶重楼P.polyphylla Smith、长药...本文报道了百合科重楼属植物七叶一枝花Paris polyphylla Smith var.chinensis Hara、滇重楼P.polypylla Smith var.yunnanensis Hand.-Mazz.、狄叶重楼P.polyphylla Smith var.stenophylla Franch.、多叶重楼P.polyphylla Smith、长药隔重楼P.polyphylla Smith var.pseudothibetica H.Li、海南重楼P.dunniana Levl、凌云重楼P.cronquistii H.Li、南重楼P.vietnamensis H.Li、金线重楼P.delavayi Franch等9个种和变种根茎的显微鉴定。各种和变种间有一定的区别,主要比较最外层细胞、中柱维管束、粘液细胞、草酸钙针晶束、皮层等。展开更多
Precipitation-related extremes are among the most impact-relevant consequences of a warmer climate,particularly for China,a region vulnerable to global warming and with a large population.Understanding the impacts and...Precipitation-related extremes are among the most impact-relevant consequences of a warmer climate,particularly for China,a region vulnerable to global warming and with a large population.Understanding the impacts and risks induced by future extreme precipitation changes is critical for mitigation and adaptation planning.Here,extreme precipitation changes under different levels of global warming and their associated impacts on populations in China are investigated using multimodel climate projections from the Coupled Model Intercomparison Project Phase 5 and population projections under Shared Socioeconomic Pathways.Heavy precipitation would intensify with warming across China at a rate of 6.52%(5.22%-8.57%)per degree of global warming.The longest dry spell length would increase(decrease)south(north)of-34°N.The low warming target of the Paris Agreement could substantially reduce the extreme precipitation related impacts compared to higher warming levels.For the area weighted average changes,the intensification in wet extremes could be reduced by 3.22%,9.42%and 16.70%over China,and the lengthening of dry spells could be reduced by 0.72%,4.75%and 5.31%in southeastern China,respectively,if global warming is limited to 1.5℃as compared to 2,3 and 4℃The Southeastern China is the hotspot of enhanced impacts due to the dense population.The impacts on populations induced by extreme precipitation changes are dominated by climate change,while future population redistribution plays a minor role.展开更多
文摘本文报道了百合科重楼属植物七叶一枝花Paris polyphylla Smith var.chinensis Hara、滇重楼P.polypylla Smith var.yunnanensis Hand.-Mazz.、狄叶重楼P.polyphylla Smith var.stenophylla Franch.、多叶重楼P.polyphylla Smith、长药隔重楼P.polyphylla Smith var.pseudothibetica H.Li、海南重楼P.dunniana Levl、凌云重楼P.cronquistii H.Li、南重楼P.vietnamensis H.Li、金线重楼P.delavayi Franch等9个种和变种根茎的显微鉴定。各种和变种间有一定的区别,主要比较最外层细胞、中柱维管束、粘液细胞、草酸钙针晶束、皮层等。
基金jointly supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA20060102)the International Partnership Program of Chinese Academy of Sciences(134111KYSB20160031)+2 种基金the National Natural Science Foundation of China(41330423,41905064)China Postdoctoral Science Foundation(2018M641450)the support from the Jiangsu Collaborative Innovation Center for Climate Change.
文摘Precipitation-related extremes are among the most impact-relevant consequences of a warmer climate,particularly for China,a region vulnerable to global warming and with a large population.Understanding the impacts and risks induced by future extreme precipitation changes is critical for mitigation and adaptation planning.Here,extreme precipitation changes under different levels of global warming and their associated impacts on populations in China are investigated using multimodel climate projections from the Coupled Model Intercomparison Project Phase 5 and population projections under Shared Socioeconomic Pathways.Heavy precipitation would intensify with warming across China at a rate of 6.52%(5.22%-8.57%)per degree of global warming.The longest dry spell length would increase(decrease)south(north)of-34°N.The low warming target of the Paris Agreement could substantially reduce the extreme precipitation related impacts compared to higher warming levels.For the area weighted average changes,the intensification in wet extremes could be reduced by 3.22%,9.42%and 16.70%over China,and the lengthening of dry spells could be reduced by 0.72%,4.75%and 5.31%in southeastern China,respectively,if global warming is limited to 1.5℃as compared to 2,3 and 4℃The Southeastern China is the hotspot of enhanced impacts due to the dense population.The impacts on populations induced by extreme precipitation changes are dominated by climate change,while future population redistribution plays a minor role.
