投入产出数据作为国民账户体系(System of National Accounts,SNA)中产业数据的核心,是经济结构分析的重要数据基础.目前国家统计局已开始了对我国投入产出核算方法的改革.在此背景下,本文系统归纳并分析了SNA核算思想从早期英美主导向...投入产出数据作为国民账户体系(System of National Accounts,SNA)中产业数据的核心,是经济结构分析的重要数据基础.目前国家统计局已开始了对我国投入产出核算方法的改革.在此背景下,本文系统归纳并分析了SNA核算思想从早期英美主导向后期欧洲主导转变过程中在核算框架上表现出的主要特征.分析表明分歧的焦点主要集中在生产核算上,进而导致了投入产出核算的引入及后来的发展.沿着这样的理论路径才能更好理解投入产出核算方法变化和欧美不同做法背后的原因,从而正确认识当前形势下我国投入产出核算方法改革对于我国整体核算框架的完善,以及服务于我国经济结构转型分析所具有的理论和实践意义,并进一步明确改革的路径和方向.在上述分析基础上,基于我国实际并借鉴国外做法,为我国投入产出核算的改革提出建议.展开更多
The changes in hydrological processes in the Yellow River basin were simulated by using the Community Land Model(CLM,version 3.5),driven by historical climate data observed from 1951 to 2008.A comparison of modeled so...The changes in hydrological processes in the Yellow River basin were simulated by using the Community Land Model(CLM,version 3.5),driven by historical climate data observed from 1951 to 2008.A comparison of modeled soil moisture and runoff with limited observations in the basin suggests a general drying trend in simulated soil moisture,runoff,and precipitation-evaporation balance(P-E) in most areas of the Yellow River basin during the observation period.Furthermore,annual soil moisture,runoff,and P-E averaged over the entire basin have declined by 3.3%,82.2%,and 32.1%,respectively.Significant drying trends in soil moisture appear in the upper and middle reaches of the basin,whereas a significant trend in declining surface runoff and P-E occurred in the middle reaches and the southeastern part of the upper reaches.The overall decreasing water availability is characterized by large spatial and temporal variability.展开更多
文摘投入产出数据作为国民账户体系(System of National Accounts,SNA)中产业数据的核心,是经济结构分析的重要数据基础.目前国家统计局已开始了对我国投入产出核算方法的改革.在此背景下,本文系统归纳并分析了SNA核算思想从早期英美主导向后期欧洲主导转变过程中在核算框架上表现出的主要特征.分析表明分歧的焦点主要集中在生产核算上,进而导致了投入产出核算的引入及后来的发展.沿着这样的理论路径才能更好理解投入产出核算方法变化和欧美不同做法背后的原因,从而正确认识当前形势下我国投入产出核算方法改革对于我国整体核算框架的完善,以及服务于我国经济结构转型分析所具有的理论和实践意义,并进一步明确改革的路径和方向.在上述分析基础上,基于我国实际并借鉴国外做法,为我国投入产出核算的改革提出建议.
基金supported by the National Basic Research Program of China (973 Program,2012CB956202)the National Key Technology R&D Program of China(2012BAC22B04)+1 种基金the National Natural Science Foundation of China (41105048)the Special Fund for Meteorological scientific Research in the Public Interest (GYHY201106028)
文摘The changes in hydrological processes in the Yellow River basin were simulated by using the Community Land Model(CLM,version 3.5),driven by historical climate data observed from 1951 to 2008.A comparison of modeled soil moisture and runoff with limited observations in the basin suggests a general drying trend in simulated soil moisture,runoff,and precipitation-evaporation balance(P-E) in most areas of the Yellow River basin during the observation period.Furthermore,annual soil moisture,runoff,and P-E averaged over the entire basin have declined by 3.3%,82.2%,and 32.1%,respectively.Significant drying trends in soil moisture appear in the upper and middle reaches of the basin,whereas a significant trend in declining surface runoff and P-E occurred in the middle reaches and the southeastern part of the upper reaches.The overall decreasing water availability is characterized by large spatial and temporal variability.