The capitalization of land resources in rural areas is good for the transforming of agricultural management method,carrying out the process of urbanization,alleviating lack of funds for construction in rural areas and...The capitalization of land resources in rural areas is good for the transforming of agricultural management method,carrying out the process of urbanization,alleviating lack of funds for construction in rural areas and further guarantee farmers’rights.However,in the process of capitalization of land resources in rural areas in China,problems such as ambiguity of land property right,inaccuracy of the appraisal of the investment in land,imperfectness of the related supporting system and non-fluency of land resources circulation in rural areas and so on still exist,which need the support from governments of all levels to actively explore and survey,taking such actions as carrying out land registration,establishing a scientific and normative price appraisal system for land resources,improving the system of registration as a legal person,increasing subsidies,improving taxation reducing policy,forming the diversified rural financial system,setting up and improving the land resources circulation market in rural areas and so on.展开更多
Dear Editor,The pathophysiologic al mechanisms underlying mood disorders including major depressive disorder(MDD)remain to be fully characterized.Iron is a key component in the development of the central nervous syste...Dear Editor,The pathophysiologic al mechanisms underlying mood disorders including major depressive disorder(MDD)remain to be fully characterized.Iron is a key component in the development of the central nervous system and iron deficiency has been linked to impairments of mood and cognition[1].展开更多
Lake Lop Nur is located in the eastern part of the Tarim Basin in Xinjiang,northwestern China.A 220-cm-long sediment core was collected from the center of the ear-shaped depression forming the basin and dated with AMS...Lake Lop Nur is located in the eastern part of the Tarim Basin in Xinjiang,northwestern China.A 220-cm-long sediment core was collected from the center of the ear-shaped depression forming the basin and dated with AMS^(14)C.Grain size,total organic matter(TOC),total nitrogen(TN),and TOC/TN(C/N)analyses were used to reconstruct climatic conditions from 13.0 to 5.6 cal ka BP.The results showed fi ve main climatic stages.Zone I(13.0–11.3 cal ka BP)was a wet–dry environment,whereas Zone II(11.3–8.9 cal ka BP)consisted of a primarily wet environment.Zone III(8.9–7.7 cal ka BP)was subdivided into Zone IIIa(8.9–8.2 cal ka BP)that indicated lake constriction and dry climate,and Zone IIIb(8.2–7.7 cal ka BP)in which the proxies indicated wet conditions.In Zone IV(7.7–6.6 cal ka BP),the climate presented a bit wet conditions.In Zone V(6.6–5.6 cal ka BP),abundant glauberite is present in the sediment and silt dominates the lithology;these results indicate the lake shrank and the overall climate was dry.Abrupt environmental events were also identifi ed,including six dry events at 11.0,10.5,9.3,8.6,8.2,and 7.6 cal ka BP and one fl ood event from 7.8 to 7.7 cal ka BP in the Early–Middle Holocene.展开更多
基金a phased research result of the program of “the Innovative Practice and Education Base of the Cooperation between Financial Majors of Academies of Business Studies Alliance and Enterprises” of Department of Education of Anhui Province(No.2012sjjd097)
文摘The capitalization of land resources in rural areas is good for the transforming of agricultural management method,carrying out the process of urbanization,alleviating lack of funds for construction in rural areas and further guarantee farmers’rights.However,in the process of capitalization of land resources in rural areas in China,problems such as ambiguity of land property right,inaccuracy of the appraisal of the investment in land,imperfectness of the related supporting system and non-fluency of land resources circulation in rural areas and so on still exist,which need the support from governments of all levels to actively explore and survey,taking such actions as carrying out land registration,establishing a scientific and normative price appraisal system for land resources,improving the system of registration as a legal person,increasing subsidies,improving taxation reducing policy,forming the diversified rural financial system,setting up and improving the land resources circulation market in rural areas and so on.
基金the National Natural Science Foundation of China(81871852,81200935,81671867 and 81971794)the Liaoning Revitalization Talents Program(XLYC1807137)+1 种基金the Scientific Research Foundation for Returned Scholars of the Ministry of Education of China(20151098)the Natural Science Foundation of Liaoning Province,China(20170541030)。
文摘Dear Editor,The pathophysiologic al mechanisms underlying mood disorders including major depressive disorder(MDD)remain to be fully characterized.Iron is a key component in the development of the central nervous system and iron deficiency has been linked to impairments of mood and cognition[1].
基金Supported by the National Natural Science Foundation of China(No.41271205)the PhD Research Startup Foundation of Heibei GEO Univerity(No.BQ201604)
文摘Lake Lop Nur is located in the eastern part of the Tarim Basin in Xinjiang,northwestern China.A 220-cm-long sediment core was collected from the center of the ear-shaped depression forming the basin and dated with AMS^(14)C.Grain size,total organic matter(TOC),total nitrogen(TN),and TOC/TN(C/N)analyses were used to reconstruct climatic conditions from 13.0 to 5.6 cal ka BP.The results showed fi ve main climatic stages.Zone I(13.0–11.3 cal ka BP)was a wet–dry environment,whereas Zone II(11.3–8.9 cal ka BP)consisted of a primarily wet environment.Zone III(8.9–7.7 cal ka BP)was subdivided into Zone IIIa(8.9–8.2 cal ka BP)that indicated lake constriction and dry climate,and Zone IIIb(8.2–7.7 cal ka BP)in which the proxies indicated wet conditions.In Zone IV(7.7–6.6 cal ka BP),the climate presented a bit wet conditions.In Zone V(6.6–5.6 cal ka BP),abundant glauberite is present in the sediment and silt dominates the lithology;these results indicate the lake shrank and the overall climate was dry.Abrupt environmental events were also identifi ed,including six dry events at 11.0,10.5,9.3,8.6,8.2,and 7.6 cal ka BP and one fl ood event from 7.8 to 7.7 cal ka BP in the Early–Middle Holocene.
