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Drought and Flood Disaster Control of Agricultural Land and Optimization Method of Planting Structure to Avoid Disaster
Control de sequías e inundaciones en terrenos agrícolas y método de optimización de estructuras para evitar desastres
DOI:
https://doi.org/10.15446/esrj.v26n4.103872Keywords:
Farming Land; Drought and Flood Disaster; Disaster Avoidance Planting; Structure Optimization; Input-Output; DEA (en)Tierra cultivable, Desastre por sequía o inundación, Optimización de estructuras, Análisis Envolvente de Datos, relación de eficiencia prevención-resultados (es)
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Agricultural disasters frequently occur in China. Therefore, this article studied the prevention and control of drought and flood disasters in agricultural land and the optimization method of planting structures to avoid disaster. Firstly, the impact of the change of input structure on the prevention and control of drought and flood disasters on agricultural land was analyzed, and the evaluation system of input-output efficiency was constructed. Secondly, the evaluation model was built by DEA method, so as to provide the theoretical basis for the quantitative evaluation of input-output efficiency. Taking Jiangxi Province as an example, the input-output data of drought and flood control of agricultural land in twenty cities in 2014-2017 was analyzed. The results show that the input-output efficiency of 80% of farmland in Jiangxi Province is low, and the resources of drought and flood prevention are not sufficiently utilized. In addition, the low pure technical efficiency and scale efficiency are the main reasons for the low input-output efficiency of drought and flood prevention. The effect of human and financial input in drought and flood prevention of farmland in Jiangxi Province is slightly different for value output and actual output. From the aspects of strengthening the investment in basic facilities and the technical research and development of agricultural products, the optimization strategy for the input structure of drought and flood prevention of agricultural land is put forward.
Los desastres naturales relacionados al sector agrícola ocurren frecuentemente en China. Este artículo estudia la prevención y control de sequías en terrenos agrícolas y el método de optimización de estructuras para evitar desastres. Inicialmente se analizó el impacto en los cambios en estructuras de prevención de sequías y de inundación y se construyó un sistema de evaluación de la relación de eficiencia prevención-resultados. Luego se construyó un modelo de evaluación con el método DEA (Análisis Envolvente de Datos, del inglés Data Envelopment Analysis) para que provea de una base teórica la evaluación cuantitativa de la relación de eficiencia prevención-resultados. Con la provincia Jiangxi como área de estudio, se analizó la relación prevención-resultados en el control de sequías e inundaciones en terrenos agrícolas en veinte ciudades entre 2014 y 2017. Los resultados muestran que la relación de eficiencia prevención-resultados en el 80 % de las tierras de cultivo en la provincia Jiangxi es bajo y los recursos para la prevención no se utiliza suficientemente. Adicionalmente, la baja eficiencia técnica y a escala son las principales razones para el pobre rendimiento en la relación prevención-resultados en el control de sequías e inundaciones. El efecto de los recursos humanos y financieros en este sector en la provincia de Jiangxi es ligeramente diferente para el valor de los resultados y el valor actual. Desde el aspecto del fortalecimiento de instalaciones básicas, investigación técnica y desarrollo de productos agrícolas se debe proponer una estrategia de optimización para la inversión en estructura de prevención de estos desastres.
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