Contact  |  Chinese  |  CAS
 Home  About RADI People Research News Cooperation Education Resources Data Services
Location:Home > News > Updates in the Fields
PNAS:Resilience and reactivity of global food security
 
 Date: 2015-06-30  Page Views:
Print
Close
The escalating food demand by a growing and increasingly affluent global population is placing unprecedented pressure on the limited land and water resources of the planet, underpinning concerns over global food security and its sensitivity to shocks arising from environmental fluctuations, trade policies, and market volatility. Here, we use country-specific demographic records along with food production and trade data for the past 25 y to evaluate the stability and reactivity of the relationship between population dynamics and food availability. We develop a framework for the assessment of the resilience and the reactivity of the coupled population–food system and suggest that over the past two decades both its sensitivity to external perturbations and susceptibility to instability have increased.
Source:PNAS

 

Downloads:
[ Top ]  
Copyright © 2013 by the Institute of Remote Sensing and Digital Earth
No.9 Dengzhuang South Road, Haidian District, Beijing 100094, China Tel:86-10-82178008 Fax:86-10-82178009