半干旱区庭院农业旱灾适应潜力的空间格局——基于河北宣化传统葡萄园的分析

Spatial pattern of adaptation potential of household agriculture to droughts in semi - arid regions of China

传统农业系统因其相对独特的传统耕作方式或工艺较好地适应灾害风险而能长期以来"与灾害共存"。从河北宣化传统的庭院漏斗式葡萄种植园入手,分析其适应旱灾的特征并基于其生长要求的自然环境构建适应潜力评价指标与模型,探讨半干旱区庭院农业旱灾适应潜力的空间格局。结果表明:半干旱区庭院式农业旱灾适应潜力的高值区总体呈现"东北-西南"带状空间格局,内蒙古中部和南部、河北西北部、山西和陕西北部是近期庭院式传统葡萄发展的优先区域;从长远看,庭院农业旱灾适应潜力区域有向外围空间扩展的趋势,高值区逐渐连接成片;适应潜力的提出有助于灾害适应性研究内容的深入与拓展。研究结果可为灾害适应性研究,半干旱区调整家庭从业结构、提高收入水平提供科学依据。

Traditional agriculture systems could adapt to the disaster risks in order to maintain their development based on their relatively unique traditional practices or techniques.In this study,taking the traditional household vineyard（THV） in Xuanhuan County,Hebei province,we analyzed the adaptation characteristics of the THV.An indicator system and assessment model of adaptation potential to droughts was established based on the physical environment.The spatial pattern of adaptation potential of household agriculture to droughts in semi-arid regions of China was explored and discussed.The results showed that.（1） A ＂ Northeast-Southwest＂ spatial pattern of THV with high level of adaptation potential to droughts was delineated;the central and southern part of Inner Mongolia,northwestern Hubei,northern Shanxi and Shaanxi were the priority areas to develop the THV.（2） In a long term,the areas with high level of adaptation potential show an obvious spatial expansion to the outside of the high density areas.The areas with high level of adaptation potential aggregated together.（3） The ＂ adaptation potential＂ is a new concept in the field of disaster adaptation research,which could be a forcing factor to deepen and widen the disaster adaptation research scope.The study could provide a scientific basis on the research of disaster adaptation,and also provide a support reference to adjustment of industrial structure and income increase at the household scale in the semi-arid regions of China.