Responses of food production systems to climate change:sensitivity and vulnerability

作     者：Liyong Xie Yue Li Fengkui Qian Hongliang Zhao Xue Han Erda Lin 

作者机构：College of AgronomyShenyang Agricultural University College of Land and EnvironmentShenyang Agricultural University Institute of Geographic Sciences and Natural Resources ResearchCAS Institute of Environment and Sustainable Development in AgricultureChinese Academy of Agricultural Sciences 

出 版 物：《Chinese Journal of Population,Resources and Environment》 (中国人口·资源与环境（英文版）)

年 卷 期：2014年第12卷第3期

页      面：227-232页

学科分类：09[农学] 0903[农学-农业资源与环境] 

主　　题：climate change food production impact and adaptation sensitivity vulnerability exposure resilience 

摘      要：Climate warming has prolonged the optimization of crop-growing seasons,shortened actual growth periods,and changed crop-planting *** also has boosted crop yields in certain regions while compromising crop quality and affected the occurrence of meteorological disasters and pest diseases damage,which has resulted in reduction in grain *** production systems will evidence more sensitivity to climate change in future;for example,with an increase of 1°C in temperature,the average growth period will be shortened by 17 days for winter wheat and 7-8 days for maize and *** course regional differences will *** change will threaten crop yield stability and affect crop *** will be addressed in regard to extreme climatic events,which include reducing exposure and improving adaptive capacity,because the exposure of rain-fed agriculture is greater than that of irrigated ***,we propose three suggestions to reduce the vulnerability of crop production systems to climate ***,strengthen the evaluation capacity construction of sensitivity,which includes(1)refining and improving all types of evaluation indicator systems and models;(2)innovating and developing evaluation methods and tools;and(3)combining field observation and case studies,so that(1)the impact of climate change and sensitivity can be assessed scientifically;(2)uncertainty in the study can be identified and reduced;and(3)improved understanding of climate systems and their changes,climate change impact,and sensitivity will be ***,strengthen adaptive capacity construction for crop production systems,which includes(1)rebuilding existing farmland infrastructure to improve meteorological disaster defences;(2)adjusting agriculture structure and adopting new crop varieties with enhanced resistance;(3)popularizing water-saving technology and dry farming technology;and(4)further researching interdisciplinary theories and ***,strengthen