贵州喀斯特石漠化地区粮食安全保障的时空变化与预测

Temporal and Spatial Variation of Food Security and Prediction in Karst Rock Desertification Area in Guizhou

为探究喀斯特石漠化地区恶劣生态环境下的粮食安全状况,以贵州省为例,在认真分析研究区特殊的自然生态环境条件的基础上,结合当前实际的人口规模和粮食消费模式,通过GIS把贵州省的人口、粮食生产与保障能力等数据进行空间化处理,并进一步对这些要素进行目视叠加,对其粮食安全状况进行了分析与评价,找出目前贵州省粮食安全保障在时空"适配"上存在的问题;最后对贵州省未来10年粮食需求量进行了预测。

To explore the food security situation of poor ecological environment in the karst rock desertification area, taking Guizhou as an example, based on the analysis of the special natural eco-environment condition sincerely in study area,combined with the actual population scale and food consume mode in study area,the authors evaluated it′s current food security condition at the moment;moreover, conducted GIS spatial analysis operations to population,farmland resources,the environment quality,the food production data and guarantee ability of food in Guizhou,and then made an overlay analysis on these main factors by eyes ,and found out the problems that existed in“proper to go together with”of food security guarantee.Finally,forecasted the food demand of Guizhou in the next ten years.