首页|Assessment of efficiency and potentiality of agricultural resources in Central Asia
Assessment of efficiency and potentiality of agricultural resources in Central Asia
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This paper quantitatively analyzes the utilization efficiency of agricultural resources in Central Asia by calculating the consumption coefficient of the main resources,including arable land,water and fertilizers.The results of these investigations reveal the following:(1) The average consumption coefficients of cultivated land resources in Central Asia are much higher than the world average value of up to 7.74 m2/kg,which is 3.6 times that of China,suggesting that the cultivated land resource consumption coefficient of cultivated land resource utilization efficiency is low in the Central Asian region.(2) Up to 80％ of available water resources are used for agriculture irrigation.The average agricultural water consumption in Central Asia is about 9.43 m3/kg,or nearly 9.3 times the average value elsewhere in Asia,indicating that agricultural water use efficiency in this region is very low and water resources are wasted.(3) The fertilizer consumption coefficient in Central Asia is 0.035 kg/kg,which is close to the world average,but the utilization efficiency of fertilizer is relatively high.Therefore,in the future development of agriculture,Central Asia should pay more attention to the management of agricultural water resources in order to improve the utilization efficiency of these resources as well as that of arable land.
Central Asiaagricultural resourcesconsumption coefficientuse efficiency
ZHANG Jiaoyou、CHEN Yaning、LI Zhi
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State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, CAS,Urumqi 830011, China
University of Chinese Academy of Sciences, Beijing 100049, China
Strategic Priority Research Program of the Chinese Academy of SciencesNational Natural Science Foundation of China
NETL
NSTL
万方数据
维普
