scholarly journals Dynamic evolution and regional differences of grain production efficiency in Kazakhstan

2021 ◽  
Vol 36 (3) ◽  
pp. 594
Author(s):  
Mei-zhi WANG ◽  
Feng WEI
Keyword(s):  
Regional Differences ◽  
Production Efficiency ◽  
Dynamic Evolution ◽  
Grain Production

scholarly journals Appropriate Management Scale of Farmland and Regional Differences under Different Objectives in Shaanxi Province, China

Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 314
Author(s):  
Qianxi Zhang ◽  
Zehui Chen ◽  
Fei Li
Keyword(s):  
Influencing Factors ◽  
Loess Plateau ◽  
Regional Differences ◽  
Agricultural Development ◽  
Shaanxi Province ◽  
Employment Rate ◽  
Grain Production ◽  
The Loess Plateau ◽  
Surplus Labor ◽  
The Government

Agricultural development is facing two problems: insufficient grain production and low profit of farmers. There is a contradiction between the government’s goal of increasing production and the farmer’s goal of increasing profit. Exploring the appropriate management scale of farmland under different objectives is of great significance to alleviate the conflict of interests between the government and farmers. In this study the Cobb-Douglas production function model was used to measure the appropriate management scale of farmland under different objectives in Shaanxi Province and analyze the regional differences. Under the two objectives, the appropriate management scale of the Loess Plateau was the largest in the three regions, followed by Qinba Mountains and Guanzhong Plain. Farmland area and quality were the main influencing factors for the appropriate management scale of farmland under the goal of maximizing the farmland yield, while the nonagricultural employment rate and farmland transfer rate were the main influencing factors under the goal of maximizing farmers’ profits. It is easy for Shaanxi Province to increase farmers’ profits, but more land needed to be transferred to increase farmland yield. These results suggest that in order to balance the goal of increasing yield and profit, the transfer of rural surplus labor should be promoted, and the nonagricultural employment rate should be improved. In Loess Plateau, restoring the ecological environment and enhancing the farmland quality. In Guanzhong Plain, avoiding urban land encroachment on farmland. In Qinba Mountains, developing farming techniques and moderately increasing the intensity of farmland exploit.

scholarly journals Temporal and spatial variation characteristics of temperature and its impact on grain production in Northeast China in recent 50 years

2021 ◽  
Author(s):  
Weiping Yan ◽  
Hongxiang Zhao ◽  
Lihua Zhang ◽  
Chen Xu ◽  
Guobo Tan ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Northeast China ◽  
Regional Differences ◽  
Warming Trend ◽  
Grain Production ◽  
Temporal And Spatial Variation ◽  
Average Wind Speed ◽  
Variation Characteristics ◽  
Temporal And Spatial ◽  
The Impact

Abstract Climate warming has a great impact on grain production in northeast China, but there are few studies on the temporal and spatial variation characteristics of annual Tmean (mean temperature), the impact of meteorological factors on Tmean, and the impact of Tmean increase on grain production in northeast China. This study found that annual Tmean decreased from southeast to northwest in Northeast China, and there were regional differences in spatial distribution. The annual Tmean isoline in Northeast China moves obviously from southeast to northwest. The annual warming trend of Tmean was significant from 1971 to 2000, and moderated from 2001 to 2020. In recent 50 years, Tmean had obvious periodic changes. In the mid-late 1980s, annual Tmean had a sudden warming change, and since then it has been rising continuously. Sunshine hours, average wind speed, evaporation and average air pressure had a very significant correlation with Tmean. In conclusion, the climate change in northeast China in the past 50 years has an obvious warming and drying trend, and there are regional differences in the warming and drying. The warming and drying climate has brought challenges to agricultural production and food security in Northeast China. However, the negative effects of grain production reduction caused by warming and drying climate can be avoided to a certain extent if we deal with it properly.

scholarly journals Determinants and Differences of Grain Production Efficiency Between Main and Non-Main Producing Area in China

2019 ◽  
Vol 11 (19) ◽  
pp. 5225
Author(s):  
Furong Chen ◽  
Yifu Zhao
Keyword(s):  
Panel Data ◽  
Technical Efficiency ◽  
Production Function ◽  
Production Efficiency ◽  
Stochastic Frontier ◽  
Grain Production ◽  
Marginal Productivity ◽  
Rural Labor ◽  
Stochastic Frontier Production Function ◽  
Frontier Production Function

This paper investigated the determinants, especially labor transformation, and differences of technical efficiency between main and non-main grain-producing area in China based on a panel data from 30 provinces in the period of 2001–2017. Stochastic frontier production function was used to estimate the level of technical efficiency and the marginal productivity of different inputs. The estimated results showed that land is the most important factor to improve China’s grain output, followed by fertilizers, labor, and machinery inputs. There was a significant 4.6 percent gap of production efficiency between main and non-main producing provinces. Influence of rural labor transformation was confirmed to be positive to improve technical efficiency.

scholarly journals Grain Self-Sufficiency Capacity in China’s Metropolitan Areas under Rapid Urbanization: Trends and Regional Differences from 1990 to 2015

2019 ◽  
Vol 11 (9) ◽  
pp. 2468 ◽  
Author(s):  
Jiao Huang ◽  
Ze Liang ◽  
Shuyao Wu ◽  
Shuangcheng Li
Keyword(s):  
Regional Differences ◽  
Production Management ◽  
Food System ◽  
Metropolitan Areas ◽  
Urban Expansion ◽  
Future Research ◽  
Grain Production ◽  
Ghg Mitigation ◽  
Rapid Urbanization ◽  
Self Sufficiency

Urbanization brings significant changes to the urban food system. There is growing attention to food self-sufficiency in metropolitan areas for the concern of greenhouse gas (GHG) mitigation in food transportation. In China, grain self-sufficiency in metropolitan areas is also an important issue for grain security and involves coordination among contradictory policy goals. Based upon a comprehensive statistical analysis of 70 metropolitan areas in mainland China, we investigated the regional differences in the trends of grain self-sufficiency capacity in these areas from 1990 to 2015. The findings show a trend of decline in 3/4 of metropolitan areas, mainly located in the rapidly urbanizing eastern coastal areas and in the West. The increase of self-sufficiency mainly occurred in the North, in areas either specialized in grain production or originally low in grain self-sufficiency. The enlarging contradiction of decreasing supply and rising demand explained the sharp decrease in self-sufficiency, while the increase in self-sufficiency was due to the increase in supply. Land productivity contributed more significantly than land availability to supply change. There was a tradeoff between urban expansion (rather than economic growth) and grain production in metropolitan areas. Our results provide implications to future research and policy-making for grain production management in China’s metropolitan areas.

scholarly journals The Economic Analysis of Corn Grain Optimization and Price Variation for Cattle on Feed in Texas

Agriculture ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 159
Author(s):  
Braelyn Moltz ◽  
Mark Yu ◽  
Edward Osei ◽  
W. Brandon Smith ◽  
Brant Poe
Keyword(s):  
Sensitivity Analysis ◽  
Production Efficiency ◽  
Profit Maximization ◽  
United States Department ◽  
Grain Production ◽  
Price Variation ◽  
Agricultural Industry ◽  
Continuous Form ◽  
Analysis System ◽  
Corn Grain

Cattle placed on feed is a practice to maximize the amount of meat produced before being sent to slaughter, which has become a major agricultural industry. The optimization of input quantities, especially corn, is crucial to maximize production efficiency and ultimately profit. The objective of this research is to determine the optimal corn grain production rate for cattle on feed in Texas and estimated profit maximization under various price ratios for corn grain and live cattle. Utilizing data from various United States Department of Agriculture (USDA) sources, various different input production levels and prices were collected. Statistical Analysis System (SAS), procedures were used to estimate the different production functions. Sensitivity analysis were performed for the optimal production of corn grain rate, and consequent profit under various combinations of corn and live cattle prices for the four different functions. Additionally, a continuous form curve for optimal corn grain production rates under various price ratios was developed. Results indicated that the cubic model was the most accurate based upon the R2 value. However, the continuous form model created for the sensitivity analysis concluded that the quadratic was the most accurate model under the different price ratios. The results of the study can be a useful tool for the decision-making process for producers and policymakers.

scholarly journals Regional Differences and Dynamic Evolution of Carbon Emission Intensity of Agriculture Production in China

2020 ◽  
Vol 17 (20) ◽  
pp. 7541
Author(s):  
Jiaxing Pang ◽  
Hengji Li ◽  
Chengpeng Lu ◽  
Chenyu Lu ◽  
Xingpeng Chen
Keyword(s):  
Carbon Emissions ◽  
Agricultural Production ◽  
Emission Intensity ◽  
Regional Differences ◽  
Carbon Emission ◽  
Dynamic Evolution ◽  
Western Region ◽  
Carbon Emission Intensity ◽  
Emissions Intensity ◽  
The Difference

The study of the carbon emission intensity of agricultural production is of great significance for the formulation of a rational agricultural carbon reduction policy. This paper examines the regional differences, spatial–temporal pattern and dynamic evolution of the carbon emission intensity of agriculture production from 1991 to 2018 through the Theil index and spatial data analysis. The results are shown as follows: The overall differences in carbon emission intensity of agriculture production presents a slightly enlarging trend, while the inter-regional differences in carbon emissions intensity is decreasing, but the intra-regional difference of carbon emissions intensity presented an expanding trend. The difference in carbon emission intensity between the eastern and central regions is not obvious, and the difference in carbon emission intensity in the western region shows a fluctuating and increasing trend. The overall differences caused by intra-regional differences; the average annual contribution of intra-regional differences is 67.84%, of which the average annual contribution of western region differences is 64.24%. The carbon emission intensity of agricultural production in China shows a downward trend, with provinces with high carbon emission intensity remaining stable, while provinces with low intensity are expanding. The Global Moran’s I index indicates that China’s carbon emission intensity of agricultural production shows a clear trend of spatial aggregation. The agglomeration trend of high agricultural carbon emission remains stable, and the overall pattern of agricultural carbon emission intensity shows a pattern of increasing differentiation from east to west.

Agricultural Productivity and Urbanization: Evidence from Grain and Tobacco Production Efficiency in China

2021 ◽  
Vol 7 (6) ◽  
pp. 5172-5183
Author(s):  
Ma Jing ◽  
Li Qing
Keyword(s):  
Technological Progress ◽  
Crop Production ◽  
Production Efficiency ◽  
Agricultural Productivity ◽  
Grain Production ◽  
Standard Deviation Increase ◽  
Cash Crop ◽  
Tobacco Production ◽  
Urbanization Rate ◽  
The Impact

This paperbased on grain production efficiency and tobacco production efficiency studies the impact of agricultural productivity on urbanization in open economy. Theoretically, a theoretical model allowing biased technological progress is constructed. The research finds that when technological progress is labor-saving technological progress, the improvement of agricultural productivity can significantly improve the level of urbanization. Empirically, using The Panel data of Chinese cities from 2000 to 2014, the empirical study finds that The improvement of grain production efficiency and the improvement of tobacco as a cash crop production efficiency will significantly improve the urbanization rate, and each standard deviation increase of agricultural productivity will increase the urbanization rate by about 4-9.6 percentage points, or about 12-30%. The above findings are robust and hold even after using instrumental variables and introducing more control variables. The research of this paper shows that the improvement of staple grain production efficiency and cash crop production efficiency can effectively improve the level of urbanization in China. Under the new normal of the economy, implementing the rural revitalization strategy and continuing to improve the efficiency of agricultural production is conducive to further improving the urbanization rate and boosting high-quality economic development.

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