摘要
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 re- source 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 man- agement of agricultural water resources in order to improve the utilization efficiency of these resources as well as that of arable land.
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 re- source 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 man- agement of agricultural water resources in order to improve the utilization efficiency of these resources as well as that of arable land.
基金
The Strategic Priority Research Program of the Chinese Academy of Sciences,No.XDA19030204
National Natural Science Foundation of China,No.41630859
