Factors controlling regional grain yield in China over the last 20 years

Wang, Xiaobin; Dan, Cai; Grant, C. A.; Hoogmoed, W.B.; Oenema, O.

doi:10.1007/s13593-015-0288-z

Cited by 17 publications

(5 citation statements)

References 22 publications

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“…This is consistent with the conclusion put forward by Wang (2018) [38], that is, the application rate of chemical fertilizer has shown a decreasing marginal utility. An excessive amount of chemical fertilizer application will cause soil quality degradation and pollution [39], which will endanger the further improvement in grain yield.…”

Section: Discussionmentioning

confidence: 99%

Analysis of the Impact of Land Use Change on Grain Production in Jiangsu Province, China

Cao,

Han,

2023

Land

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Located in the Yangtze River Delta region, Jiangsu Province has become the major grain production area of China and plays an important role in ensuring national food security. With rapid economic development and urbanization, the amount of cultivated land has decreased, which greatly affects food security. Based on the statistical data of grain production in Jiangsu Province since 2000 and the remote sensing data of 2000, 2010, and 2020, this paper used the stochastic frontier production function to calculate the output elasticity of various factors and the technical efficiency of grain production. The agglomeration effect of food production was investigated by using spatial correlation analysis. Finally, regression analysis was applied to examine the impact of land use change on grain yield and the technical efficiency of production. The results show that the grain-sown area is the decisive factor for the increase in grain output in Jiangsu Province. The technical efficiency of grain production in the province has been maintained at a relatively high level since 2000, showing a fluctuating upward trend, and the efficiency value in southern Jiangsu Province is greater than that in central and northern Jiangsu. The analysis of the spatial distribution characteristics of grain production technical efficiency shows that grain production has an agglomeration effect. The regression results showed that the complexity of land use and the density of the cultivated land patch were negatively correlated with grain yield and grain production technical efficiency, while the location of cultivated land was positively correlated with grain yield and grain production technical efficiency. The conclusion of this paper has important policy significance for promoting food production and ensuring food security.

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Section: Discussionmentioning

confidence: 99%

Analysis of the Impact of Land Use Change on Grain Production in Jiangsu Province, China

Cao,

Han,

2023

Land

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“…Fourthly, the pronounced emphasis on the impact of climate change and variability on grain yields is also a significant research focus, with efforts underway to identify adaptation strategies (Alexandrov and Hoogenboom, 2000;Kukal and Irmak, 2018;Bento et al, 2021;Habib-ur-Rahman et al, 2022;Hasegawa et al, 2022). Fifthly, some scholars also explore the relationship between grain yields and rural development, poverty reduction, and the role of rural infrastructure, education, and health in improving productivity (Wang et al, 2015;Ge et al, 2018). Finally, market access and international trade are examined to understand the effects on domestic grain prices and production (Chan, 2022;Falsetti et al, 2022).…”

Section: Literature Reviewmentioning

confidence: 99%

Agricultural socialized services and Chinese food security: examining the threshold effect of land tenure change

Cai,

Wangda,

Shi

et al. 2024

Front. Sustain. Food Syst.

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Revolutionary agricultural structural reforms in the supply chain and cutting-edge institutional mechanisms are pivotal in catalyzing a quantum leap in food production. China’s focus on achieving self-sufficiency in grain production for domestic security necessitates structural reforms in the agricultural supply chain and innovative institutional mechanisms. The emergence of socialized agricultural institutions plays a pivotal role in providing essential services to smallholder farmers. However, a dearth of studies evaluating the efficacy of these services in enhancing grain production exists. This study aims to fill this gap by analyzing provincial panel data from China spanning 2011 to 2020 to evaluate the impact of Agricultural Socialized Services (ASS) development levels on grain production. Employing panel and panel threshold models for empirical analysis, the research investigates how this impact varies between major grain-producing regions and non-major grain-producing regions. Findings indicate a significant positive effect of ASS on grain production, with a correlation coefficient of 1.3555. While its impact is less pronounced in grain-producing regions, it proves beneficial in non-grain regions. Moreover, the transfer of farmland use rights amplifies ASS’s influence on grain production, with a threshold value of 33.18%. The study concludes by outlining policy implications from various perspectives, providing practical recommendations for policymakers and stakeholders in the agricultural sector.

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“…For instance, wheat-growing areas in central China, a typical Win-Lose region, should reduce their chemical N inputs (Figure 4). In Lose-Lose regions, such as maize-growing areas in southern China, which are characterized by several adverse natural factors, including a mountainous landscape, sloping fields, low soil productivity, and inadequate sunlight [47][48][49][50], more integrated techniques for increasing yield and reducing N surplus and loss are required. In practice, some agroecological innovations in crop and soil management show great promise for reducing N surplus, thus achieving the yield benefits of intensive agriculture while greatly reducing harm to the environment.…”

Section: Approaches For Improvement In N Managementmentioning

confidence: 99%

Targeting Hotspots to Achieve Sustainable Nitrogen Management in China’s Smallholder-Dominated Cereal Production

Zhang

Yin

et al. 2021

Agronomy

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Agriculture in China, which is dominated by millions of smallholders, consumes 30% of global nitrogen (N) fertilizers and results in a high surplus and vast spatial variability of N. Identifying the N-management practices of smallholder farmers is critical to pursuing sustainable agricultural productivity. However, at the national scale, N budgets and spatial distribution based on first-hand data from smallholder farmers are not well characterized. Here, using data collected from a national survey involving 7.3 million farmers from 2005 to 2014, we quantified N budgets, evaluated their spatial variation, and revealed “hotspots” of low N removal and high N surplus for wheat, maize, and rice systems at the county level. The N surplus for cereal crops was 122–140 kg N ha−1, which is equivalent to an annual N surplus of 11.3 megaton (Mt). Chemical N was the most important contributor to the N surplus, while farmers used manure N less than 10% of the total N input. N budgets exhibited vast spatial variation at the county level, and the hotspots contributed to 56% of the total N surplus in China. Targeted efforts for eliminating hotspots could increase N removal by 13–21%, increase N use efficiency to 0.55–0.70, and significantly reduce the N surplus for all counties and crops, by 42%. Based on farmer survey data, our results provide updated estimates of N budgets and highlight hotspots of N surplus for cereal crop systems in China. They provide a benchmark for the development of new agricultural N management policies and technologies in the country.

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Factors controlling regional grain yield in China over the last 20 years

Cited by 17 publications

References 22 publications

Analysis of the Impact of Land Use Change on Grain Production in Jiangsu Province, China

Analysis of the Impact of Land Use Change on Grain Production in Jiangsu Province, China

Agricultural socialized services and Chinese food security: examining the threshold effect of land tenure change

Targeting Hotspots to Achieve Sustainable Nitrogen Management in China’s Smallholder-Dominated Cereal Production

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