Abstract
A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China
Highlights
With only 7% of global arable land and 6% of global water resources to feed 22% of the global population, food security has always been being a real challenge for China[1,2]
The average total technical efficiency (TTE) score in Northwest China was 0.770, suggesting that this area could produce the same output with a 23% reduction in inputs
The TTE score in Ningxia (0.981) was the highest, while that of Xinjiang (0.725) was the lowest. These results might be influenced by the number of irrigation districts because their provincial distributions were not even
Summary
With only 7% of global arable land and 6% of global water resources to feed 22% of the global population, food security has always been being a real challenge for China[1,2]. Due to urban expansion[5], climate change[6,7] and environmental pollution[8], increasingly resources are becoming unavailable for agricultural production[9]. Food production capacity has generally improved over the past few decades, the growth rate in food demand out-weights that in food supply[11]. It is claimed that the rate of food demand is 1.3 times higher than growth in supply. It is estimated that food supply needs to increase by 30% by 2030 to meet the demand from the growing population in China[12,13]. Agricultural production faces many pressures: intrinsically finite natural resources[14], shrinking provision of natural resource[15] and increasing demand[16]
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