scholarly journals A Study on the Substitution Efficiency of Agricultural Mechanization Development in Zhejiang Province on Agricultural Labor Force

Author(s):  
Chun-Xiang Liu ◽  
Ningji Lv
2021 ◽  
Vol 13 (23) ◽  
pp. 12984
Author(s):  
Yuanying Chi ◽  
Wenbing Zhou ◽  
Zhenyu Wang ◽  
Yu Hu ◽  
Xiao Han

For sustainable agricultural development, increasing efforts are put on promoting agricultural mechanization and green agricultural development all over the world. Based on the panel data of Chinese provincial agriculture from 2002 to 2018, the System Generalized Method of Moments model and mediation model are constructed to explore the paths of agricultural mechanization affecting green agricultural development. The results show that agricultural mechanization can not only promote the green agricultural development directly but also indirectly by transferring the agricultural labor force and increasing fertilizer input. However, because of the surge of pesticide demand, agricultural mechanization also leads to serious pollution indirectly. With the development of large-scale agricultural machinery, the direct promotion of agricultural machinery on green agricultural development will be more significant. However, it will be less efficient to substitute more agricultural labor force with machinery power. The problem of pesticide abuse will also become more serious. Therefore, it is important for green agricultural development to encourage human capital investment in agricultural mechanization. In addition, more attention should be paid to improving the input efficiency of fertilizers and pesticides so that agriculture will be sustainable in production and the ecological environment.


Land ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 311 ◽  
Author(s):  
Zhongqi Deng ◽  
Qianyu Zhao ◽  
Helen X. H. Bao

The rapid growth of China’s economy since the reform in 1978 should be largely attributed to urbanization. Nonetheless, in terms of farmland productivity, urbanization may lead to perverse incentives and thus threaten food security. On the one hand, the requisition–compensation balance of farmland (RCBF) policy could reduce farmland productivity because of a “superior occupation and inferior compensation”; on the other hand, urbanization promotes the transfer of the younger labor force and thus reduces the productivity of the agricultural labor force. To investigate the undesirable effects, based on some stylized facts, this study selects 29,415 county-level samples in a Chinese county from 2000–2014 to construct an empirical model. With a new stochastic frontier analysis method that eliminates the classical econometric issues of endogeneity and heterogeneity, the empirical results show that there is a U-shaped relationship between the farmland use efficiency (productivity) and urbanization rate, indicating that only when the urbanization rate is relatively low would urbanization decrease the farmland use efficiency; in contrast, when the urbanization rate is relatively high, technical progress would obviously be accompanied by urbanization, and thus, the undesirable effects are fully offset. Furthermore, the U-shaped relationship is robust after considering the endogeneity of the urbanization rate and total-factor farmland use efficiency. With these findings, recommendations to implement sustainable management and conservation policies regarding farmland resources are made.


1987 ◽  
Vol 47 (4) ◽  
pp. 897-927 ◽  
Author(s):  
John Komlos

A decline in nutritional status is inferred from data on the height and weight of West Point cadets in the antebellum period. The decline was geographically widespread and affected farmers and blue-collar workers the most; middle-class cadets did not experience a decline in nutritional status until the Civil War. Nutritional status declined because meat output did not keep pace with population growth. Urbanization and the expansion of the industrial labor force increased the demand for food. However, the agricultural labor force grew at a slower pace, and productivity growth in food production was insufficient to redress the imbalance.


1969 ◽  
Vol 29 (4) ◽  
pp. 716-738 ◽  
Author(s):  
Donald B. Keesing

This Article summarizes the main findings of a detailed. study of the changing occupational and industrial structure of Mexico's non-agricultural labor force from 1895 to 1930 and from 1930 to 1950, based on a comparison of population censuses, especially those of 1895, 1930, and 1950. Structural changes in Mexico's labor force have never been adequately studied, and the results of the present research shed considerable new light on Mexico's development. The findings also suggest important paradoxes and discontinuities in the early stages of industrialization that merit systematic recognition in models and measurements of structural change over the course of development.


资源科学 ◽  
2019 ◽  
Vol 41 (12) ◽  
pp. 2284-2295
Author(s):  
Jiabin HAN ◽  
Shuyun LIU ◽  
Shufeng ZHANG ◽  
Yufeng LIU ◽  

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