粮食安全背景下的宁夏牧草种植效益评价研究

Study on Evaluation of Forage Planting Benefits in Ningxia under Background of Food Security

为全面了解粮食安全背景下宁夏种植牧草的综合效益,采用熵权TOPSIS法,定量分析评价了宁夏2010—2019年种植牧草的经济效益、社会效益和生态效益,结果表明:从时间特征分析,宁夏牧草种植效益整体呈现“缓慢增长—波动下降—快速增长”的阶段性发展态势,其中吴忠市的牧草综合效益上升较快。这10 a间宁夏牧草经济效益波动上升、社会效益逐年变好、生态效益相对稳定。从空间分异规律分析,宁夏牧草种植效益呈现不均衡发展和显著的区域分异,经济效益较高地区生态效益较差。

In order to fully understand the comprehensive benefits of planting forage in Ningxia under the background of food security,the entropy weight TOPSIS method was used to quantitatively study the economic,social and ecological benefits of planting forage in Ningxia from 2010 to 2019.The results show that from the analysis of time characteristics,the comprehensive benefits of forage in Ningxia show a stage development trend of from slow growth to fluctuation decline to rapid growth,among which the comprehensive benefits of forage in Wuzhong City rise rapidly.The economic and social benefits of forage in Ningxia show an upward trend,while the ecological benefits are relatively stable.From the analysis of spatial differentiation,the overall benefits of forage present unbalanced development and significant regional differentiation,and the area with higher economic benefit has lower ecological benefit.