ZHOU Haitao,NING Xiaoli,ZHANG Xuefeng,et al.Assessment on the Rural Settlement Suitability of Damao Banner in Baotou City Based on Maximum Entropy Modeling[J].Research of Soil and Water Conservation,2021,28(02):335-342.
基于maxEnt模型的包头市达茂旗居民点空间分布适宜性评价
- Title:
- Assessment on the Rural Settlement Suitability of Damao Banner in Baotou City Based on Maximum Entropy Modeling
- 文章编号:
- 1005-3409(2021)02-0335-08
- 分类号:
- K901.8
- 文献标志码:
- A
- 摘要:
- 为了科学客观地开展农村居民点适宜性研究,基于数据驱动的机器学习maxEnt模型,以达茂旗为例,从自然环境、区位条件、生产条件及生态环境方面选取环境因子,构建达茂居民点空间分布适宜性评价指标体系,并对其进行了评价研究。结果表明:(1)达茂旗最适宜居民点空间分布区域主要在百灵庙镇、石宝镇、希拉穆仁镇和乌克忽洞镇及西河乡,非适宜区多集中分布在达茂旗北部满都拉镇、巴音花镇和查干哈达苏木区域。(2)距道路距离因子是影响其空间分布适宜性最重要环境因子,其次是距耕地和距林地距离因子,距水域距离、坡度、DEM和坡向因子对其适宜性影响重要性相对较弱。(3)达茂旗居民点空间分布适宜区在高程上并未呈现出低地取向性,1 350～1400 m适宜性最高。但具有较明显的低平缓坡度指向性,0°～2.5°最为适宜。南坡和西南坡适宜性最高。随着距离道路、城镇、林地距离值的增加,其适宜性逐渐降低。耕地与水域因子影响趋势相似,起初适宜性随着距离增加而降低,接着出现适宜性平缓区域,超过某个临界值后呈断崖式下降,最后趋于无变化。距离草地约300～800 m时最适宜,植被覆盖度值越高,其居民点空间分布适宜性越高。
- Abstract:
- In order to scientifically and objectively estimate the suitability of rural residential areas, we utilized a data-driven maximum Entropy(maxEnt)model to assess the rural settlement suitability of Damao Banner in Baotou City based on natural environment, locational conditions, production conditions and ecological environment features. The results show that:(1)the most suitable areas mainly distribute in the Bailingmiao, Shibao, Xilamuren, Wukehudong Town and Xihe Town; the unsuitable areas are primarily located in the northeast zone of Damao Banner, such as Mandula, Bayinhua and Chaganhada Town;(2)the most important environmental factor affecting the suitability of its spatial distribution is distance from roads, which is followed by distance from cultivated land and forest land; distances from water area, slope, DEM and aspect factor have relatively weak influence on its suitability;(3)it seems that lowland orientation has little to do with the suitable spatial distribution of settlements in Damao Banner; the height from 1 350 m to 1 400 m is the most suitable; however, it is obvious that it has the directionality of the low gentle slope, with the most suitable between 0° and 2.5°; the south slope and southwest slope are the most suitable; with the increase of distance from roads, towns and forest, the living suitability decreases gradually; the factors of cultivated land as well as water area function similarly; at first, the suitability decreases with the increase of distance, then the suitable gentle region appears, drops off precipitously after exceeding a certain critical value, finally, it remains unchanged; the distance from the grass land from 300 m to 800 m is the most suitable. The lager vegetation coverage values are, the greater the living suitability of spatial distribution will be.
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备注/Memo
收稿日期:2020-05-14 修回日期:2020-05-29
资助项目:国家自然科学基金(41761036); 内蒙古自治区大学生创新创业训练计划项目(201910131006)
第一作者:周海涛(1989—)男,内蒙古赤峰人,硕士,讲师,主要从事人居适宜性研究。E-mail:hsdzht@163.com
通信作者:宁小莉(1970—)女,内蒙古赤峰人,教授,硕士生导师,主要从事人居适宜性研究。E-mail:ningxl2003@aliyun.com