摘要
为研究面向种植业生产适宜性的区域差异及其定量化评价。针对西南山区种植业生产适宜性的特殊问题,引入了地理探测器空间分析方法科学量化耕地种植生产适宜性评价指标权重,探索了提高山区耕地种植生产适宜性定量评价的科学性和准确性。以云南省昭通市为例,基于地理探测器模型科学量化各评价指标对耕地种植生产适宜性的贡献度,确定了其评价权重,结合加权叠加模型对昭通市山区耕地种植生产适宜性进行了评价,并对山区种植业生产空间进行了优化分析。结果表明:①通过地理探测可以科学定量评价指标对耕地种植生产适宜性的贡献度依次为:积温>年降水量>土壤厚度>坡度>土壤有机质>高程>地形起伏度,且能实现耕地种植生产适宜性准确定量评价;②昭通市现状耕地面积是4651.9 km^(2),耕地种植生产适宜区面积为4550.31 km^(2),通过优化调整后耕地生产空间面积为4741.18 km^(2),既能提出耕地空间分布优化方案,又能有效挖掘耕地生产空间潜力;③昭通市现状耕地中不适宜区主要受生态、坡度、土壤环境容量以及建设占用等因素的影响。研究结果可为山区农业生产合理开发利用和规划管理提供科学支撑。
This paper studies regional differences and quantitative evaluation of the suitability of crop production.Aiming at special problems of planting production suitability in southwest mountainous areas,the Geodetector spatial analysis method is introduced to scientifically quantify the weights of cropland planting production suitability evaluation indicators,and to explore to improve the scientificity and accuracy of the quantitative evaluation of cropland planting production suitability in mountainous areas.Taking Zhaotong City,Yunnan Province as an example,firstly,based on the Geodetector,the contribution of each evaluation index is scientifically quantified to the suitability of cultivated land planting and production.Its evaluation weight is determined,and the suitability of cultivated land planting and production in the mountainous area of Zhaotong City using the weighted superposition model are evaluated.The analysis of the production space of the mountain planting industry is optimized.The results show that:①Geodetector can scientifically and quantitatively evaluate the contribution of indicators to the suitability of cultivated land production in the following order:accumulated temperature>annual precipitation>soil thickness>slope>soil organic matter>elevation>topographic undulation.②The current cultivated land area of Zhaotong City is 4651.9 km^(2),and the suitable area for cultivated land production is 4550.31 km^(2).After optimization and adjustment,the cultivated land production space area is 4741.18 km^(2),which can not only propose an optimization plan for the spatial distribution of cultivated land,but also effectively excavate cultivated land production space potential.③The current unsuitable areas of the cultivated land in Zhaotong City are mainly affected by factors such as ecology,slope,soil environmental capacity,and construction occupation.This research can provide scientific support for the rational development and utilization and planning and management of agricultural production in moun
作者
李宏溪
邓春暖
杨飞
李宇
孙雷刚
Li Hongxi;Deng Chunnuan;Yang Fei;Li Yu;Sun Leigang(Faculty of Geography,Yunnan Normal University and Yunnan Key Laboratory of Plateau Geographical Processes and Environmental Change,Kunming,Yunnan 650500,China;Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;Hebei Institute of Geographical Sciences,Shijiazhuang,Hebei 050011,China)
出处
《绿色科技》
2022年第10期8-13,共6页
Journal of Green Science and Technology
基金
中国科学院战略性先导科技专项(A类)(编号:XDA23000000)
河北省科学院两院合作项目(编号:201501)
云南省柔性人才项目“基于‘双评价’的县域‘三区三线’划定及系统平台开发”。
关键词
地理探测器
山区
适宜性评价
优化
Geodetector
mountainous area
suitability evaluation
optimization
