天水大樱桃生产空间演变与优化研究

Study on Spatial Evolution and Optimization of Cherry Production in Tianshui

运用GIS技术、层次分析法及重心理论,基于甘肃天水经济林果业大樱桃1984年—2019年数据,分析天水大樱桃的面积、产值变化及演变规律。研究结果得出,天水大樱桃生产空间的演变呈现同心圆模式主体向天水市东扩展趋势。在研究天水大樱桃生产空间演化结果基础上,对天水市国土空间范围内进行大樱桃生产适宜性评价,适宜性评价的结果显示,天水市中部渭河河谷及其支流浅宽河谷川区、南部浅宽河谷川区为非常适宜区;中部与南部低海拔缓坡区为较适宜区;南部中山与北部河谷缓坡地区为一般适宜区;北部黄土丘陵地区为不适宜区;东北部与西部高山地区为极不适宜区。依据评价结果和种植现状,结合种植演变规律,提出优化方案,为以后大樱桃种植提供科学依据。

Using GIS technology and hierarchical analysis method,center of gravity theory,based on the data of 1984 to 2019 of the great cherry of Tianshui economic forest fruit industry,the analysis of Tianshui Big Cherry area,output value change and evolution law.The results of the study show that the evolution of Tianshui Big Cherry production space presents the trend of the ex‐pansion of the main body of the concentric circle mode to Tianshui City.On the basis of studying the evolution results of Tianshui's large cherry production space,the suitability evaluation of large cherry production within the land and space of Tianshui City shows that the shallow wide valley in the central water city and its tributaries are very suitable areas,and the low-altitude slow slope area in the middle and south is a more suitable area.The moderate slope areas of zhongshan and northern valleys in the south are generally suitable areas,the northern loess hilly areas are unsuitable areas,and the north-east and western alpine areas are extremely unsuitable areas.According to the evaluation results and planting status quo,combined with the law of planting evolution,the optimization scheme is proposed to provide a scientific basis for the later large cherry cultivation.