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您的检索式：作者名="Dongpu FENG"
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| 1 | Changes in Large Livestock Breeding Industry and Their Influences on Gross Output Value of Animal Husbandry in Guyuan City of Ningxia显示文摘[Objectives]The aim of this paper was to reveal the changes of large livestock industry and their influence on animal husbandry economy in Guyuan City of Ningxia.[Methods]The linear trend method was employed to quantify the change trends of the indicators for large livestock industry,and the ridge regression model was conducted to analyze their impacts on the gross output value of animal husbandry(GOVAH).[Results]The numbers of sold and slaughtered cattle and sheep in Guyuan presented a significant upward trend,while the number for hog had a significant downward trend,during 2000-2019.The GOVAH in Guyuan and its 5 counties had increased by 2-3 times in recent 20 years,which was mainly driven by large-scale livestock breeding.The cattle and sheep breeding sectors had positive effects on GOVAH,while the hog breeding sector had negative effect.[Conclusions]This study provides a reference for the structural adjustment and large-scale development of animal husbandry. | Zhijun GE Liqiang TIAN Yiyao LI Dongpu FENG | 2022 | Asian Agricultural Research2022，14，1： | 0 |
| 2 | Analysis and Optimization of Crop Planting Structure in Ningxia显示文摘[Objectives]To analyze and optimize the crop planting structure in Ningxia based on the shortage of water resources and the large proportion of agricultural water consumption in Ningxia.[Methods]The change trend of crop planting area and planting structure in Ningxia in 2004-2018 was analyzed,and a multi-objective optimization model was constructed with the objectives of maximum crop profit and minimum water demand.The STEM method was applied to solve the problem,and the optimization scheme of crop planting in Ningxia was obtained.[Results]In Ningxia in 2004-2018,the planting area showed the characteristics of'increase-decrease-increase';the area and proportion of cash crops were increasing,and the proportion of grain crops was gradually decreasing,but the proportion of crops with high water consumption was still high.After the planting structure was optimized,the economic benefit was increased by 34.85×10^(8) yuan,and the water demand was reduced by 3.9×10^(8) m^(3).[Conclusions]Under the premise of ensuring food security,the optimized scheme not only saves water resources but also obtains higher economic benefits.It provides a reference for alleviating water shortage and increasing farmers'income. | Qing WANG Huaru LIU Dongpu FENG | 2022 | Asian Agricultural Research2022，14，6： | 0 |
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