Browsing by Author "Chen, Fu"
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Item Fallow priority areas for spatial trade-offs between cost and efficiency in China(Springer Nature, 2023-05-26) Zeng, Siyan; Chen, Fu; Liu, Gang-Jun; Raveloaritiana, Estelle; Wanger, Thomas ChericoFallow pilot policies exist in China but fallow priority areas have yet to be identified based on eco-environmental stressors and spatial cost-benefit analyses. Here we use a multi-criteria optimization algorithm to determine fallow priority areas based on soil pollution, groundwater overexploitation, land quality, and ecological protection redlines delineation data and with high-cost effectiveness. By considering five spatial scenarios on three objective functions, we find most notably that fallowing the top 20% of priority areas, the benefit of pollution control and environmental protection can be achieved by up to 98.7% and 64.7%, respectively. Our results show that effective fallow prioritization on cultivated land may reduce implementation costs by up to 509.3 billion USD, corresponding to 13.6% of China’s budget in 2021. Thus, effective fallow prioritization will promote sustainable land use by pursuing goals between benefits and cost synergistically and allow budget allocation to other sustainable agricultural targets based on agricultural diversification.Item Socio-economic factors infuencing the adoption of low carbon technologies under rice production systems in China(Springer Nature, 2022-12-08) Chen, Zhong-Du; Chen, FuBackground: Rice (Oryza sativa L.) production, such as farmers’ livelihood and the soil quality, has been identifed to be strong infuenced by climate change in China. However, the benefts of low carbon technologies (LCTs) are still debatable in rice production for farmers, which have been identifed to tackle agricultural challenges. The choice of potential LCTs relevant to the case study is based on a literature review of previous empirical studies. Thus, the objectives of the study were to (1) investigate the public perception and preferences of LCTs in rice production of China, and (2) analyze the infuences of the factors on farmer’s decision in adopting LCTs in rice production. There were 555 farmer surveys from eight representative rice production counties in HP province of southern China, both the Poisson estimators and multivariate probit (MVP) approach were applied in the study. Results: Our results show that water-saving irrigation, integrated pest management techniques and planting green manure crops in winter season were the three major LCTs adapted by farmers in rice production. The intensity and probability of LCTs adoptions were infuenced by the main factors including farmers’ education level, climate change awareness, machinery ownership, technical support and subsidies. There is a signifcant correlation among the LCTs, and the adoption of the technologies is interdependent, depicting either complementarities or substitutabilities between the practices. Conclusions: This study suggests that policies enhance the integration of LCTs would be central to farmers’ knowledge, environmental concerns, technical service and fnancial support in rice production systems in China.