肯尼亚和中国农业资源投入与农业单产水平变化
Changes in agricultural resource input and productivity in Kenya and China
摘要
Abstract
Both Kenya and China are facing great challenges in feeding their populations; this is particularly problematic in Kenya, where the population will be projected to increase by 1.4 times from 2018 to 2100. Food production has been greatly improved in China, but it still lags behind in Kenya. In this study, we systematically compared the changes in agricultural resources and crop/livestock productivity, as well as their relationships with the resource input levels and agricultural production structure, to try to provide insights into reducing food insecurity and poverty in Kenya. Our results revealed that Kenya had 2–3 times more natural resources, such as cropland, grassland, and annual precipitation, per capita than did China in the 1960s, which was similar to the daily food energy and protein supply. Currently, Kenya still has higher natural resources per capita, but has lower food security and quality when compared to China. This is due to the continued rapid increase in crop and livestock productivity regarding energy and protein production in China. From 1961 to 2017, crop protein productivity increased by 44％ in Kenya, while in China it increased by 282％. Our results showed that crop and livestock productivity positively correlated with the input of fertilizers, concentrate feeds, machinery, and pesticides, as seen in China. Meanwhile, the structure of crop and livestock production also showed a large impact on the changes in productivity, such as the harvest area of vegetables/fruits to the total harvest area and the ratio of monogastric animals for livestock production. Overall, both agrochemicals and structure have strong impacts on the increase in productivity, and these could be potential options in Kenya to improve productivity due to the low input of resources into crop and livestock production.关键词
肯尼亚/中国/能量生产力/蛋白生产力/农业资源/农业结构/粮食安全Key words
Kenya/China/Energy productivity/Protein productivity/Agricultural resources/Agricultural structure/Food security分类
管理科学引用本文复制引用
Dorris Chebeth,柏兆海,马林..肯尼亚和中国农业资源投入与农业单产水平变化[J].中国生态农业学报（中英文）,2020,28(6):900-909,10.基金项目
This work was supported by the National Natural Science Foundation of China (31572210,31872403,71961137011), the Key Laboratory of Agricultural Water Resources of Chinese of Academy of Sciences (ZD201802), the Key Research Program of Chinese Academy of Sciences (KFJ-STS-ZDTP-053), Hebei Dairy Cattle Innovation Team of Modern Agro-industry Technology Research System of China (HBCT2018120206), the Youth Innovation Promotion Association of Chinese Academy of Sciences (2019101), and the Outstanding Young Scientists Project of Natural Science Foundation of Hebei (C2019503054). 国家自然科学基金项目(31572210,31872403,71961137011)、中国科学院农业水资源重点实验室基金(ZD201802)、中国科学院重点项目(KFJ-STS-ZDTP-053)、中国现代农业产业技术研究体系河北省奶牛创新团队项目(HBCT2018120206)、中国科学院青年创新促进会(2019101)和河北省自然科学基金优秀青年科学家项目(C2019503054)资助 （31572210,31872403,71961137011）
