This study analyzed soil moisture,soil erosion,and vegetation in the source region of the Yangtze River from 2005 to 2016.We found that soil moisture showed an increasing trend from 2005 to 2009 but decreased from 200...This study analyzed soil moisture,soil erosion,and vegetation in the source region of the Yangtze River from 2005 to 2016.We found that soil moisture showed an increasing trend from 2005 to 2009 but decreased from 2009 to 2016.The surface soil moisture was severely affected by seasonal changes in the source region of the Yangtze River,especially in the soil from 0 to 40 cm.However,seasonal variation of soil moisture deeper than 40 cm was different from that in the upper layer.Soil moisture below 40 cm wasn't affected by the seasonal variation.Soil moisture from 0 to 50 cm and the average thickness of wind deposition showed a positive correlation in the study area from 2005 to 2016.For environmental protection in the source region of the Yangtze River,wind deposition played a role in water retention.Similarly,a positive correlation also existed between the average thickness of wind erosion and soil moisture.Deep-soil moisture was the key factor for vegetation structure on the Qinghai?Tibet Plateau.The results are also helpful for further understanding the variation of soil moisture on the Tibetan Plateau and providing a scientific basis for effectively protecting and controlling the ecological environment in the future.展开更多
Dear Editor,In the adult brain,the transition from neural stem cell(NSC)quiescence to activation is a focal regulatory point for neural regeneration and dysregulations in the transition lead to brain disorders.1,2 Dur...Dear Editor,In the adult brain,the transition from neural stem cell(NSC)quiescence to activation is a focal regulatory point for neural regeneration and dysregulations in the transition lead to brain disorders.1,2 During this transition,both cell cycle states and metabolism including mitochondria undergo extensive reprogramming.A deep understanding of such comprehensive changes is a prerequisite for a holistic picture of physiology and may aid disease combats.展开更多
基金supported by the Discipline Construction Fund Project of Gansu Agricultural University(GSAU-XKJS-2018-109)the Open Foundation of MOE Key Laboratory of Western China’s Environmental System,Lanzhou University+3 种基金the Fundamental Research Funds for the Central Universities(lzujbky-2018-kb01)National"Plan of Ten Thousand People"Youth Top Talent Project,the Youth Innovation Promotion Association,CAS(2013274)Open funding from the Key Laboratory of Mountain Hazards and Earth Surface Process the open funding from State Key Laboratory of Loess and Quaternary Geology(SKLLQG1814)National Key R&D Program of China(2017YFC0404305)
文摘This study analyzed soil moisture,soil erosion,and vegetation in the source region of the Yangtze River from 2005 to 2016.We found that soil moisture showed an increasing trend from 2005 to 2009 but decreased from 2009 to 2016.The surface soil moisture was severely affected by seasonal changes in the source region of the Yangtze River,especially in the soil from 0 to 40 cm.However,seasonal variation of soil moisture deeper than 40 cm was different from that in the upper layer.Soil moisture below 40 cm wasn't affected by the seasonal variation.Soil moisture from 0 to 50 cm and the average thickness of wind deposition showed a positive correlation in the study area from 2005 to 2016.For environmental protection in the source region of the Yangtze River,wind deposition played a role in water retention.Similarly,a positive correlation also existed between the average thickness of wind erosion and soil moisture.Deep-soil moisture was the key factor for vegetation structure on the Qinghai?Tibet Plateau.The results are also helpful for further understanding the variation of soil moisture on the Tibetan Plateau and providing a scientific basis for effectively protecting and controlling the ecological environment in the future.
基金This work was supported by funds from the National Key R&D Program of China(2019YFA0110300,2017YFA0104100)Shanghai Easter Scholar(8101219003)to Z.L.G.+2 种基金the National Natural Science Foundation of China(31600819 to C.H.C.,81773302 to Y.T.F.,31571058 and 32070862 to Z.L.G.,31701282 to M.J.,and 81901031 to X.X.H.)Shanghai Municipal Planning Commission of science and Research Fund(20174Y0216)to C.C.H.the Natural Science Foundation of Shanghai(19ZR1445400)to X.X.H.
文摘Dear Editor,In the adult brain,the transition from neural stem cell(NSC)quiescence to activation is a focal regulatory point for neural regeneration and dysregulations in the transition lead to brain disorders.1,2 During this transition,both cell cycle states and metabolism including mitochondria undergo extensive reprogramming.A deep understanding of such comprehensive changes is a prerequisite for a holistic picture of physiology and may aid disease combats.
