The trend of land resources carrying capacity in Afghanistan from 1961 to 2019:Based on the dietary nutrient equivalent
In order to protect region security around China and promote"the Belt and Road"initiative,it is of high importance to fully understand food security and land resources carrying capacity(LCC)in Afghanistan.From the perspective of dietary nutrition demand,we studied the LCC change in Afghanistan in recent 60 years,with our established evaluation models.We also discussed the optimization path in future,considering different production and consumption scenarios.We concluded that local land resources have been unable to meet the total demands for food in Afghanistan,due to larger population and higher dietary nutrition demands;thus,lo-cal land carrying pressure has changed from the basic balance stage(1961-1978)and the tighten-ing stage(1979-1998)to the prominent stage of human land contradiction(1999-2019).Consid-ering three dietary nutrient equivalents of calories,protein and fat,all their land carrying capaci-ty is overloaded in Afghanistan,with the greatest pressure from fat demands.In order to meet lo-cal food consumption growth and land sustainable development,local authorities should imple-ment the"drug to food"policy and also improve land productivity,while suitable food dietary is also important for health and land management..Besides,we also discussed main drivers on LCC in Afghanistan,which aim to further alleviate local food security and better human-land re-lationship.
land resources carrying capacityAfghanistandietary nutritionfood securitysce-nario analysis
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