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农业科学学报(英文)
中国农业科学院农业信息研究所
农业科学学报(英文)

中国农业科学院农业信息研究所

翟虎渠

月刊

2095-3119

zgnykx@mail.caas.net.cn

010-82106283 82106280

100081

北京中关村南大街12号

农业科学学报(英文)/Journal Journal of Integrative AgricultureCSCDCSTPCD北大核心SCI
查看更多>>本刊创刊于2002年,由中国农业科学院、中国农学会主办,中国农业科学院农业信息研究所承办。刊登农牧业基础科学和应用科学的研究论文,覆盖作物科学、动物科学、农业环境、农业经济与管理等领域。
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    Transforming agri-food systems for multiple wins in nutrition,inclusion and environment

    Shenggen FanQiran ZhaoJingjing Wang
    355-358页

    Off-farm employment,agriculture production activities,and household dietary diversity in environmentally and economically vulnerable areas of Asia

    Yunli BaiXuanye ZengChao FuLinxiu Zhang...
    359-373页
    查看更多>>摘要:Access to off-farm employment has been expected to be a critical approach to ending hunger and all forms of malnutrition,two important targets of achieving Zero Hunger.This study aims to investigate the role of off-farm employment in improving dietary diversity through substitution effect and complementary effect with agricultural production activities and income effect.This study adopts Poisson/Tobit/Probit/OLS regressions and the instrument variable method based on the primary survey data collected among 1,282 households at 12 sites in environmentally and economically vulnerable areas of China,Nepal,Cambodia,Thailand,and Myanmar in 2019.The results show that off-farm employment is positively associated with household dietary diversity and the consumption of flesh meat,fish and other aquatic animals,fruits,and milk and dairy products,which are rich in protein and micronutrients.The results of mechanism analysis show that off-farm employment contributes to household dietary diversity by improving crop diversity,especially for poor households,boosting the probability of livestock raising for households with the middle one-third disposal income,and increasing household income.The positive association between off-farm employment and household dietary diversity is much higher for households with the bottom one-third disposal income,low illiteracy,and from upper-middle income countries.These findings imply that off-farm employment does play a vital role in achieving multiple benefits of poverty alleviation,malnutrition reduction,and agrobiodiversity conservation in environmentally and economically vulnerable areas.However,it may enlarge the gaps in dietary diversity between households with low human capital and from low and lower-middle income countries and those with high human capital and from middle-high countries.

    The impact of Internet access on household dietary quality:Evidence from rural China

    Yi CuiQiran ZhaoThomas GlaubenWei Si...
    374-383页
    查看更多>>摘要:Over the past few decades,the Internet has rapidly diffused across China.The spread of the Internet has had a profound economic and social impact on Chinese rural areas.Existing research shows that Internet access significantly impacts agricultural production and improves smallholder farmers' income.Beyond these,the Internet can affect other dimensions of social welfare.However,research about the impact of Internet access on dietary quality in rural China remains scarce.This study utilizes multi-period panel data from Fixed Observation Point in rural China from 2009 to 2015 to estimate the impact of Internet access on dietary quality and food consumption of rural households and conducts a causal analysis.Regression models with time and household fixed effects allow robust estimation while reducing potential issues of unobserved heterogeneity.The estimates show that Internet access has significantly increased rural household dietary quality (measured by the Chinese Diet Balance Index).Further research finds that Internet access has increased the consumption of animal products,such as aquatic and dairy products.We also examine the underlying mechanisms.Internet access improves dietary quality and food consumption mainly through increasing household income and food expenditure.These results encourage the promotion of Internet access as a valuable tool for nutritional improvements,especially in rural areas.

    Resilience effects for household food expenditure and dietary diversity in rural western China

    Xiao HanKaiyu LyuFengying NieYuquan Chen...
    384-396页
    查看更多>>摘要:A more resilient livelihood is increasingly recognized as an efficient way to improve vulnerable households' food security and optimize their dietary decisions.This study quantifies rural household resilience in western China,identifies the three pillars (absorptive capacity,adaptive capacity,and transformative capacity) contribution to resilience,and then establishes the estimated Resilience Capacity Index (RCI) linked with food security and dietary diversity supported by the multiple indicator multiple cause (MIMIC) model.Results show that,despite geographical heterogeneity,the RCI consistently increased from 2015 to 2021.Households with a higher RCI inheriting better capacity to deal with risk and shocks are significantly and positively correlated with increasing food expenditure and diversifying food choices.It can be because resilient households will allocate more money to food expenditure instead of saving for livelihood uncertainty.Thus,policymakers can provide more incentives for rural households to adopt more dynamic and effective risk management strategies.This,in turn,could yield positive spillover effects by preventing human capital loss associated with dietary-related chronic diseases and mortality.

    Nutrition impacts of non-solid cooking fuel adoption on under-five children in developing countries

    Yalin TangYuhe GuoGang XieChengfang Liu...
    397-413页
    查看更多>>摘要:This paper examines the nutrition impacts of using non-solid cooking fuel on under-five children in developing countries.We draw on data from more than 1.12 million children in 62 developing countries from the Demographic and Health Surveys (DHS).Results from both fixed effects (FE) and instrumental variable (Ⅳ) estimates show that using non-solid cooking fuel significantly improves the nutrition outcomes of under-five children.Compared with their peers from households mainly using solid fuel,children from households mainly using non-solid fuel exhibit a lower probability of experiencing stunting (by 5.9 percentage points) and being underweight (by 1.2 percentage points).Our further investigation provides evidence for several underlying mechanisms,such as improved indoor air quality,induced reduction in children's respiratory symptoms,benefits on maternal health,and reduction in maternal time spent on fuel collection or cooking.Heterogenous analyses suggest that the nutrition benefits of using non-solid cooking fuel are more prominent among boys,children above three years old,and those from households of lower socioeconomic status,rural areas,and Southeast Asia.

    The impact of demographic dynamics on food consumption and its environmental outcomes:Evidence from China

    Shaoting LiXuan ChenYanjun RenThomas Glauben...
    414-429页
    查看更多>>摘要:With increasing population and changing demographics,food consumption has experienced a significant transition in quantity and quality.However,a dearth of knowledge remains regarding its environmental impacts and how it responds to demographic dynamics,particularly in emerging economies like China.Using the two-stage Quadratic Almost Demand System (QUAIDS) model,this study empirically examines the impact of demographic dynamics on food consumption and its environmental outcomes based on the provincial data from 2000 to 2020 in China.Under various scenarios,according to changes in demographics,we extend our analysis to project the long-term trend of food consumption and its environmental impacts,including greenhouse gas (GHG) emissions,water footprint (WF),and land appropriation (LA).The results reveal that an increase in the proportion of senior people significantly decreases the consumption of grain and livestock meat and increases the consumption of poultry,egg,and aquatic products,particularly for urban residents.Moreover,an increase in the proportion of males in the population leads to higher consumption of poultry and aquatic products.Correspondingly,in the current scenario of an increased aging population and sex ratio,it is anticipated that GHG emissions,WF,and LA are likely to decrease by 1.37,2.52,and 3.56%,respectively.More importantly,in the scenario adhering to the standards of nutritional intake according to the Dietary Guidelines for Chinese Residents in 2022,GHG emissions,WF,and LA in urban areas would increase by 12.78,20.94,and 18.32%,respectively.Our findings suggest that changing demographics should be considered when designing policies to mitigate the diet-environment-health trilemma and achieve sustainable food consumption.

    Repositioning fertilizer manufacturing subsidies for improving food security and reducing greenhouse gas emissions in China

    Zongyi WuXiaolong FengYumei ZhangShenggen Fan...
    430-443页
    查看更多>>摘要:China removed fertilizer manufacturing subsidies from 2015 to 2018 to bolster market-oriented reforms and foster environmentally sustainable practices.However,the impact of this policy reform on food security and the environment remains inadequately evaluated.Moreover,although green and low-carbon technologies offer environmental advantages,their widespread adoption is hindered by prohibitively high costs.This study analyzes the impact of removing fertilizer manufacturing subsidies and explores the potential feasibility of redirecting fertilizer manufacturing subsidies to invest in the diffusion of these technologies.Utilizing the China Agricultural University Agri-food Systems model,we analyzed the potential for achieving mutually beneficial outcomes regarding food security and environmental sustainability.The findings indicate that removing fertilizer manufacturing subsidies has reduced greenhouse gas (GHG) emissions from agricultural activities by 3.88 million metric tons,with minimal impact on food production.Redirecting fertilizer manufacturing subsidies to invest in green and low-carbon technologies,including slow and controlled-release fertilizer,organic-inorganic compound fertilizers,and machine deep placement of fertilizer,emerges as a strategy to concurrently curtail GHG emissions,ensure food security,and secure robust economic returns.Finally,we propose a comprehensive set of government interventions,including subsidies,field guidance,and improved extension systems,to promote the widespread adoption of these technologies.

    The impact of the Rural Minimum Living Standard Guarantee (Rural Dibao) Program on child nutrition outcomes

    Dian ChenXiangming FangYu ChenXiaodong Zheng...
    444-456页
    查看更多>>摘要:The Rural Minimum Living Standard Guarantee (Rural Dibao) is an important unconditional cash transfer program to alleviate poverty in rural China.Despite the importance of children's nutrition in breaking poverty cycles,little is known about the impact of Rural Dibao on child nutrition outcomes.Using China Family Panel Studies (CFPS),this paper examines the effects of Rural Dibao on child nutrition outcomes and investigates potential pathways and heterogeneous effects.We exploit propensity score matching and difference-in-differences techniques to evaluate the effects of the Rural Dibao program on child nutrition outcomes.Our results suggest that Rural Dibao significantly impacts the nutrition outcomes of children up to 15 years of age.Specifically,our results suggest that Rural Dibao improves child height-to-age z-scores by 1.05 standard deviations and lowers the probability of stunting by 11.9 percentage points.Additional analyses suggest that increased protein intake is the main pathway through which Rural Dibao participation contributes to better nutrition outcomes.We also find that the effect of the program is more pronounced among girls,children who are non-left-behind or live with highly educated mothers,and those from low-income families and poor areas.Our findings suggest that Rural Dibao participation helps improve child nutrition outcomes through improving diet quality.

    Women's empowerment and food consumption:Evidence from female-headed households in Tanzania

    Mosses LufukeXu Tian
    457-467页
    查看更多>>摘要:Despite the growing recognition of women's increasing role in the household and corresponding empowerment programs in sub-Saharan Africa,intensive research on the relationship between women's influence and household food consumption is minimal.Using the most recent (2017-2018) national household survey data from Tanzania,this study examined the influence of women's empowerment on household food consumption.First,we compared the monthly consumption of eight food categories between female-headed households (FHHs) and male-headed households (MHHs) using both descriptive statistics and the propensity score matching (PSM) method.Furthermore,we adopted the two-stage Linear Expenditure System and Almost Ideal Demand System model (LES-AIDS) to estimate income and price elasticities for the two household types.The results show that FHHs consume bread and cereals,fish,oils and fats,vegetables,and confectionery (sugar,jam,honey,chocolate,etc.) more than MHHs.Moreover,FHHs have a significantly higher income elasticity of demand for all food groups than MHHs.They are also more price elastic than MHHs in meat,fish,oils,fats,sugar,jam,honey,chocolate,etc.

    Winter wheat yield improvement by genetic gain across different provinces in China

    Wei ChenJingjuan ZhangXiping Deng
    468-483页
    查看更多>>摘要:The replacement of winter wheat varieties has contributed significantly to yield improvement worldwide,with remarkable progress in China.Drawing on two sets of data,production yield from the National Bureau of Statistics of China and experimental yield from literature,this study aims to (1) illustrate the increasing patterns of production yield among different provinces from 1978 to 2018 in China,(2) explore the genetic gain in yield and yield relevant traits through the variety replacement based on experimental yield from 1937 to 2016 in China,and (3) compare the yield gap between experimental yield and production yield.The results show that both the production and experimental yields significantly increased along with the variety replacement.The national annual yield increase ratio for the production yield was 1.67% from 1978 to 2018,varying from 0.96% in Sichuan Province to 2.78% in Hebei Province;such ratio for the experimental yield was 1.13% from 1937 to 2016.The yield gap between experimental and production yields decreased from the 1970s to the 2010s.This study reveals significant increases in some yield components consequent to variety replacement,including thousand-grain weight,kernel number per spike,and grain number per square meter;however,no change is shown in spike number per square meter.The biomass and harvest index consistently and significantly increased,whereas the plant height decreased significantly.