The structural imbalance of supply and demand of agricultural products is the result of agricultural products overemphasizing quantitative growth and neglecting quality improvement. The structural reform of agricultur...The structural imbalance of supply and demand of agricultural products is the result of agricultural products overemphasizing quantitative growth and neglecting quality improvement. The structural reform of agricultural supply side is to optimize the allocation of agricultural production factors,improve the quality and efficiency of supply,and meet the quality needs of consumers. The optimization of agricultural supply factors is the result of effective supply,rational allocation and comprehensive utilization of natural resources and social resources. The success of Chu Orange Manor has explained the function of the optimization of supply factors to the development of characteristic agriculture. That is,it has promoted the development of high-end agriculture,promoted the brand value of agricultural products,promoted the competitiveness of agriculture,broken the international green trade barrier of agricultural products,promoted the development of modern agriculture with characteristics,and realized the sustainable development of rural areas.展开更多
[Objective] The aim was to explore interrelationship between agricultural input and output in Jiangsu and the influence degrees of input factors on agricultur-al output. [Method] Quantitative analysis and evaluation w...[Objective] The aim was to explore interrelationship between agricultural input and output in Jiangsu and the influence degrees of input factors on agricultur-al output. [Method] Quantitative analysis and evaluation were made on agricultural input and output in Jiangsu during 1990-2012 as per factor analysis and regression analysis. [Result] The result of factor analysis showed that since the 1990s, the comprehensive efficiency of agricultural input/output in Jiangsu was growing and in-put/output of agriculture, forestry, animal husbandry and fishery, crop farming, and of food production were extracted, whose scores reflect the changes of input/output ef-ficiencies in terms of agriculture, forestry, animal husbandry, fishery, crop farming and food production in the two decades. The results of regression analysis indicated that the effects of the three indices on agricultural output tended to be volatile and the influence degrees were concluded also by regression parameters. [Conclusion] The research provides theoretical references for agricultural input/output structure in Jiangsu Province.展开更多
Along with the rapid advance of industrialization and urbanization process, fostering new agricultural business entities become inevitable for agricultural transformation and the construction of agricultural moderniza...Along with the rapid advance of industrialization and urbanization process, fostering new agricultural business entities become inevitable for agricultural transformation and the construction of agricultural modernization in China. The status of the new agricultural business entities determines the level of modern agricultural development. In recent years, new agricultural business entities have grew rapidly. However, there are still many problems including the difficulties in financing loans, inadequate agricultural insurance system, bad implementation of agricultural subsidies, jagged agricultural talents and so on. In order to foster new agricultural business entities, countermeasures should be carried out to ensure financial support, perfect the agricultural insurance, strengthen the level of agricultural subsidies, strive to develop the degree of specialization agricultural operators and so on.展开更多
Chinese agriculture is undergoing a transformation process from traditional agriculture into modern agricultrue.This article discusses how land. labor, fertilizer, machinery etc. are used in agricultural production of...Chinese agriculture is undergoing a transformation process from traditional agriculture into modern agricultrue.This article discusses how land. labor, fertilizer, machinery etc. are used in agricultural production of different regions. reveals the influence of natural conditions and economic level on the utilization of modern agricultural factors. It proposes a system of allocation hoes of regional agricultural productive factors and points out the development stage and tendency of allocation of agricultural productive factors in different regions.展开更多
Based on panel data from the Rural Fixed Point Survey of the Ministry of Agriculture over the period 2004-2016 and supplementary survey data on information and communications technology(ICT)applications in the country...Based on panel data from the Rural Fixed Point Survey of the Ministry of Agriculture over the period 2004-2016 and supplementary survey data on information and communications technology(ICT)applications in the countryside,this paper employs the difference in differences(DID)method to analyze the effects of ICT applications on rural households’agricultural total factor productivity(TFP)with mobile phone signal,internet and 3G mobile network connections as indicators,and decomposes and evaluates the constituent factors.Our findings reveal a positive effect of ICTs on rural households’TFP,which primarily stemmed from rising agricultural technical efficiency.However,ICTs exerted no significant effect on agricultural technical progress during this paper’s data period due to limited rural human capital.These findings are consistent with robustness test results based on counterfactual and matching methods.展开更多
The traditional explanation was found to be inconsistent with the empirical evidence that mainly caused the agricultural crisis in 1959-1961, so Yifu Lin tried to explain this catastrophe through using Game Theory bas...The traditional explanation was found to be inconsistent with the empirical evidence that mainly caused the agricultural crisis in 1959-1961, so Yifu Lin tried to explain this catastrophe through using Game Theory based on "one-shot game". This paper tested the hypothesis through quantitative test. The results showed that system factors mainly resulted in low productivity, and the natural disaster should not be ignored.展开更多
This paper made an empirical analysis of China's agricultural growth path and influential factors using the province-level panel data of agricultural inputs and outputs during 1985-2010.The findings indicate that the...This paper made an empirical analysis of China's agricultural growth path and influential factors using the province-level panel data of agricultural inputs and outputs during 1985-2010.The findings indicate that the increase in agricultural inputs and TFP contributed 40.6 and 55.2% to the agricultural output growth,respectively;China's agriculture had jumped out of the pattern which output growth was mainly driven by increasing input.Of the total inputs,chemical fertilizer had the most important contribution to the output growth,followed by mechanical inputs.The contribution of land and labor was negative.China's agricultural output growth belonged to the type of induced technology innovation.China's agricultural TFP growth had characteristics of fluctuations over time and unbalanced between regions,but the gap between the eastern,the middle,and the western regions has been narrowed.展开更多
Mineral particles or particulate matters(PMs) emitted during agricultural activities are major recurring sources of atmospheric aerosol loading.However,precise PM inventory from agricultural tillage and harvest in a...Mineral particles or particulate matters(PMs) emitted during agricultural activities are major recurring sources of atmospheric aerosol loading.However,precise PM inventory from agricultural tillage and harvest in agricultural regions is challenged by infrequent local emission factor(EF) measurements.To understand PM emissions from these practices in northeastern China,we measured EFs of PM_(10) and PM_(2.5) from three field operations(i.e.,tilling,planting and harvesting) in major crop production(i.e.,corn and soybean),using portable real-time PM analyzers and weather station data.County-level PM_(10) and PM_(2.5) emissions from agricultural tillage and harvest were estimated,based on local EFs,crop areas and crop calendars.The EFs averaged(107 ± 27),(17 ± 5) and 26 mg/m^2 for field tilling,planting and harvesting under relatively dry conditions(i.e.,soil moisture 〈15%),respectively.The EFs of PM from field tillage and planting operations were negatively affected by topsoil moisture.The magnitude of PM_(10) and PM_(2.5) emissions from these three activities were estimated to be 35.1 and 9.8 kilotons/yr in northeastern China,respectively,of which Heilongjiang Province accounted for approximately45%.Spatiotemporal distribution showed that most PM_(10) emission occurred in April,May and October and were concentrated in the central regions of the northeastern plain,which is dominated by dryland crops.Further work is needed to estimate the contribution of agricultural dust emissions to regional air quality in northeastern China.展开更多
基金Supported by Major Project of Yuxi Social Science Foundation in 2016-2017(YXSK134)
文摘The structural imbalance of supply and demand of agricultural products is the result of agricultural products overemphasizing quantitative growth and neglecting quality improvement. The structural reform of agricultural supply side is to optimize the allocation of agricultural production factors,improve the quality and efficiency of supply,and meet the quality needs of consumers. The optimization of agricultural supply factors is the result of effective supply,rational allocation and comprehensive utilization of natural resources and social resources. The success of Chu Orange Manor has explained the function of the optimization of supply factors to the development of characteristic agriculture. That is,it has promoted the development of high-end agriculture,promoted the brand value of agricultural products,promoted the competitiveness of agriculture,broken the international green trade barrier of agricultural products,promoted the development of modern agriculture with characteristics,and realized the sustainable development of rural areas.
文摘[Objective] The aim was to explore interrelationship between agricultural input and output in Jiangsu and the influence degrees of input factors on agricultur-al output. [Method] Quantitative analysis and evaluation were made on agricultural input and output in Jiangsu during 1990-2012 as per factor analysis and regression analysis. [Result] The result of factor analysis showed that since the 1990s, the comprehensive efficiency of agricultural input/output in Jiangsu was growing and in-put/output of agriculture, forestry, animal husbandry and fishery, crop farming, and of food production were extracted, whose scores reflect the changes of input/output ef-ficiencies in terms of agriculture, forestry, animal husbandry, fishery, crop farming and food production in the two decades. The results of regression analysis indicated that the effects of the three indices on agricultural output tended to be volatile and the influence degrees were concluded also by regression parameters. [Conclusion] The research provides theoretical references for agricultural input/output structure in Jiangsu Province.
基金Supported by the National Social Science Fund(13CJY079)the National Natural Science Fund(71303039)
文摘Along with the rapid advance of industrialization and urbanization process, fostering new agricultural business entities become inevitable for agricultural transformation and the construction of agricultural modernization in China. The status of the new agricultural business entities determines the level of modern agricultural development. In recent years, new agricultural business entities have grew rapidly. However, there are still many problems including the difficulties in financing loans, inadequate agricultural insurance system, bad implementation of agricultural subsidies, jagged agricultural talents and so on. In order to foster new agricultural business entities, countermeasures should be carried out to ensure financial support, perfect the agricultural insurance, strengthen the level of agricultural subsidies, strive to develop the degree of specialization agricultural operators and so on.
基金This article is based on the phase achievement of national !"9th-Five-Year Plan" key project 96-013-01-01
文摘Chinese agriculture is undergoing a transformation process from traditional agriculture into modern agricultrue.This article discusses how land. labor, fertilizer, machinery etc. are used in agricultural production of different regions. reveals the influence of natural conditions and economic level on the utilization of modern agricultural factors. It proposes a system of allocation hoes of regional agricultural productive factors and points out the development stage and tendency of allocation of agricultural productive factors in different regions.
基金the Beijing Food Safety Policy and Strategy Research Base at the China Agricultural University(CAU)the National Natural Science Foundation of China(NSFC)under the“Study on the Effects of Spouse Migration and Health Awareness on Rural Migrant Workers’Food Consumption,Nutrition and Health”(Grant No.71673316)the Ministry of Agriculture and Rural Affairs under the soft science research program“Study on the Bottlenecks of E-Commerce Development for Agricultural Products and Countermeasures(Grant No.2018027).
文摘Based on panel data from the Rural Fixed Point Survey of the Ministry of Agriculture over the period 2004-2016 and supplementary survey data on information and communications technology(ICT)applications in the countryside,this paper employs the difference in differences(DID)method to analyze the effects of ICT applications on rural households’agricultural total factor productivity(TFP)with mobile phone signal,internet and 3G mobile network connections as indicators,and decomposes and evaluates the constituent factors.Our findings reveal a positive effect of ICTs on rural households’TFP,which primarily stemmed from rising agricultural technical efficiency.However,ICTs exerted no significant effect on agricultural technical progress during this paper’s data period due to limited rural human capital.These findings are consistent with robustness test results based on counterfactual and matching methods.
基金This paper is supported by National Nature Science Foundation of China (No. 70071041)
文摘The traditional explanation was found to be inconsistent with the empirical evidence that mainly caused the agricultural crisis in 1959-1961, so Yifu Lin tried to explain this catastrophe through using Game Theory based on "one-shot game". This paper tested the hypothesis through quantitative test. The results showed that system factors mainly resulted in low productivity, and the natural disaster should not be ignored.
基金supported by the Projects of National Survey of CASS (Survey of Grain Production in China)
文摘This paper made an empirical analysis of China's agricultural growth path and influential factors using the province-level panel data of agricultural inputs and outputs during 1985-2010.The findings indicate that the increase in agricultural inputs and TFP contributed 40.6 and 55.2% to the agricultural output growth,respectively;China's agriculture had jumped out of the pattern which output growth was mainly driven by increasing input.Of the total inputs,chemical fertilizer had the most important contribution to the output growth,followed by mechanical inputs.The contribution of land and labor was negative.China's agricultural output growth belonged to the type of induced technology innovation.China's agricultural TFP growth had characteristics of fluctuations over time and unbalanced between regions,but the gap between the eastern,the middle,and the western regions has been narrowed.
基金supported by the National Natural Science Foundation of China(Nos.41205106,41205107 and 41275158)
文摘Mineral particles or particulate matters(PMs) emitted during agricultural activities are major recurring sources of atmospheric aerosol loading.However,precise PM inventory from agricultural tillage and harvest in agricultural regions is challenged by infrequent local emission factor(EF) measurements.To understand PM emissions from these practices in northeastern China,we measured EFs of PM_(10) and PM_(2.5) from three field operations(i.e.,tilling,planting and harvesting) in major crop production(i.e.,corn and soybean),using portable real-time PM analyzers and weather station data.County-level PM_(10) and PM_(2.5) emissions from agricultural tillage and harvest were estimated,based on local EFs,crop areas and crop calendars.The EFs averaged(107 ± 27),(17 ± 5) and 26 mg/m^2 for field tilling,planting and harvesting under relatively dry conditions(i.e.,soil moisture 〈15%),respectively.The EFs of PM from field tillage and planting operations were negatively affected by topsoil moisture.The magnitude of PM_(10) and PM_(2.5) emissions from these three activities were estimated to be 35.1 and 9.8 kilotons/yr in northeastern China,respectively,of which Heilongjiang Province accounted for approximately45%.Spatiotemporal distribution showed that most PM_(10) emission occurred in April,May and October and were concentrated in the central regions of the northeastern plain,which is dominated by dryland crops.Further work is needed to estimate the contribution of agricultural dust emissions to regional air quality in northeastern China.