Biochar addition can improve the physical and hydraulic characteristics of sandy soil.This study investigated the effects of biochar on water holding capacity and water movement in sandy soil under drip irrigation.By ...Biochar addition can improve the physical and hydraulic characteristics of sandy soil.This study investigated the effects of biochar on water holding capacity and water movement in sandy soil under drip irrigation.By indoor simulation experiments,the effects of biochar application at five levels(0%,1%,2%,4%and 6%)on the soil water retention curve,infiltration characteristics of drip irrigation and water distribution were tested and analyzed.The results showed that biochar addition rate was positively correlated with water holding capacity of sandy soil and soil available water.Within the same infiltration time,with an increasing amount of added biochar,the diffusion distance of the horizontal wetting front(HWF)tended to decrease,while the infiltration distance of vertical wetting front(VWF)initially declined and then rose.The features of wetted bodies changed from"broad-shallow"to"narrow-deep"type.The relationship between the transport distances of HWF and VWF and the infiltration time was described by a power function.At the same distance from the point source,the larger the amount of added biochar,the higher the soil water content.Biochar had a great influence on the water content of the layer with biochar(0–200 mm)and had some effects at 200–250 mm without biochar;but it had less influence on the soil water content deeper than 250 mm.For the application rate of biochar of 4%,most water was retained within 0–250 mm soil layer.However,when biochar application amount was high(6%),it would be helpful for water infiltration.During the improvement of sandy soil,biochar application rate of 4%in the plow layer had the best effect.展开更多
Skeletal muscle injuries are prone to induce fatigue,decrease resistance and imbalances in the body.Although ovalbumin(OVA)has such biological effect as promoting tissue development and immunomodulation,its impact on ...Skeletal muscle injuries are prone to induce fatigue,decrease resistance and imbalances in the body.Although ovalbumin(OVA)has such biological effect as promoting tissue development and immunomodulation,its impact on repairing skeletal muscle injuries has been rarely reported.In this study,a mouse model of muscle injury was constructed and found that OVA significantly increased muscle weight,muscle thickness,and exercise capacity in muscle-injured mice.Meanwhile,OVA improved the morphology of muscle tissues by reducing serum levels of urea nitrogen,creatine kinase,and lactate dehydrogenase,as well as decreasing the levels of inflammatory factors interleukin(IL)-1β,tumor necrosis factor α,and IL-6,respectively.In addition,transcriptomic and metabolomic analyses revealed that OVA could enhance muscle tissue morphology by upregulating the phosphatidylinositol 3-kinase-protein kinase B signaling pathway and improving amino acid metabolism through the upregulation of Col11a2,Ccn2,Thbs1,Tnc,Klf2,Bcl2l1,Adh3a1,and Rsad1.The study provided a theoretical foundation for understanding the molecular mechanisms in OVA-aided muscle injury repair.展开更多
基金supported by the Special Fund for Agro-scientific Research in the Public Interest(20130313006,201503136)the National Natural Science Foundation of China(31660073)+1 种基金the National Key Research and Development Program of China(2017YFD0200803-04,2018YFD0800804,2017YFD0201900)the Youth Foundation of Xinjiang Academy of Agricultural Sciences(xjnkq-2015002)
文摘Biochar addition can improve the physical and hydraulic characteristics of sandy soil.This study investigated the effects of biochar on water holding capacity and water movement in sandy soil under drip irrigation.By indoor simulation experiments,the effects of biochar application at five levels(0%,1%,2%,4%and 6%)on the soil water retention curve,infiltration characteristics of drip irrigation and water distribution were tested and analyzed.The results showed that biochar addition rate was positively correlated with water holding capacity of sandy soil and soil available water.Within the same infiltration time,with an increasing amount of added biochar,the diffusion distance of the horizontal wetting front(HWF)tended to decrease,while the infiltration distance of vertical wetting front(VWF)initially declined and then rose.The features of wetted bodies changed from"broad-shallow"to"narrow-deep"type.The relationship between the transport distances of HWF and VWF and the infiltration time was described by a power function.At the same distance from the point source,the larger the amount of added biochar,the higher the soil water content.Biochar had a great influence on the water content of the layer with biochar(0–200 mm)and had some effects at 200–250 mm without biochar;but it had less influence on the soil water content deeper than 250 mm.For the application rate of biochar of 4%,most water was retained within 0–250 mm soil layer.However,when biochar application amount was high(6%),it would be helpful for water infiltration.During the improvement of sandy soil,biochar application rate of 4%in the plow layer had the best effect.
基金funded by the Project of National Key Research and Development Program of China(2022YFD2101001)the Project of National Natural Science Foundation of China(32172226)+4 种基金China Agriculture Research System(CARS-40-K25CARS-40-S11)the Special Fund for Anhui Agriculture Research System(AHCYJSTX-NCPJG)-15the Project of Key Laboratory for Animal Food Green Manufacturing and Resource Ming of Anhui Province(PA2023GDSK0125)the Cooperative Project of Hefei University of Technology-Anhui Rongda Food Co.,Ltd.(W2020JSKF0489).
文摘Skeletal muscle injuries are prone to induce fatigue,decrease resistance and imbalances in the body.Although ovalbumin(OVA)has such biological effect as promoting tissue development and immunomodulation,its impact on repairing skeletal muscle injuries has been rarely reported.In this study,a mouse model of muscle injury was constructed and found that OVA significantly increased muscle weight,muscle thickness,and exercise capacity in muscle-injured mice.Meanwhile,OVA improved the morphology of muscle tissues by reducing serum levels of urea nitrogen,creatine kinase,and lactate dehydrogenase,as well as decreasing the levels of inflammatory factors interleukin(IL)-1β,tumor necrosis factor α,and IL-6,respectively.In addition,transcriptomic and metabolomic analyses revealed that OVA could enhance muscle tissue morphology by upregulating the phosphatidylinositol 3-kinase-protein kinase B signaling pathway and improving amino acid metabolism through the upregulation of Col11a2,Ccn2,Thbs1,Tnc,Klf2,Bcl2l1,Adh3a1,and Rsad1.The study provided a theoretical foundation for understanding the molecular mechanisms in OVA-aided muscle injury repair.
