基于耕作半径分析的山区农村居民点布局优化
S17; 该文以四川省西昌市为例,探讨了基于耕作半径分析的山区农村居民点布局优化方法.首先对西昌市高山陡坡区、低山缓坡区、河谷平原区农村居民点特征进行分析,而后借助GIS欧氏距离分析工具及网络分析模块来分析3个区域适宜的耕作半径,以及西昌市农村居民点向"＞0.5、＞1、＞2、＞3、＞4、＞5 hm2"农村居民点聚集后耕作半径的变化,最后提出西昌市不同区域"合村并居"策略.研究结果表明:西昌市农村居民点破碎化程度高,微型与小型农村居民点数量占总数量的94.8%.河谷平原区、低山缓坡区、高山陡坡区适宜的耕作半径分别为3000～4000、750～950、550...
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| Published in | 农业工程学报 Vol. 34; no. 12; pp. 267 - 273 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国农业大学资源与环境学院生态科学与工程系,北京,100193%四川省国土资源厅,成都,610072%中国农业大学资源与环境学院生态科学与工程系,北京 100193
15.06.2018
国土资源部农用地质量与监控重点实验室,北京 100035 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2018.12.033 |
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| Abstract | S17; 该文以四川省西昌市为例,探讨了基于耕作半径分析的山区农村居民点布局优化方法.首先对西昌市高山陡坡区、低山缓坡区、河谷平原区农村居民点特征进行分析,而后借助GIS欧氏距离分析工具及网络分析模块来分析3个区域适宜的耕作半径,以及西昌市农村居民点向"＞0.5、＞1、＞2、＞3、＞4、＞5 hm2"农村居民点聚集后耕作半径的变化,最后提出西昌市不同区域"合村并居"策略.研究结果表明:西昌市农村居民点破碎化程度高,微型与小型农村居民点数量占总数量的94.8%.河谷平原区、低山缓坡区、高山陡坡区适宜的耕作半径分别为3000～4000、750～950、550～750 m.河谷平原区农村居民点向大于3 hm2农村居民点聚集后,可形成具有一定规模的村庄,并满足耕作半径要求;低山缓坡区部分农村居民点可向大于1 hm2,且交通便捷的农村居民点集中,从而形成具有一定规模的农村居民点;高山陡坡区农村居民点就地迁并价值不高,除部分少数民族聚居点以外,其他农村居民点迁并工程应与退耕还林还草、异地扶贫搬迁、山地保护与修复等工程协同推进,逐渐向低山缓坡区与河谷平原区迁移.该方法可用于计算不同区域适宜的耕作半径,及不同合村并居情景对耕作半径的影响,从而提高合村并居规划的合理性. |
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| AbstractList | S17; 该文以四川省西昌市为例,探讨了基于耕作半径分析的山区农村居民点布局优化方法.首先对西昌市高山陡坡区、低山缓坡区、河谷平原区农村居民点特征进行分析,而后借助GIS欧氏距离分析工具及网络分析模块来分析3个区域适宜的耕作半径,以及西昌市农村居民点向"＞0.5、＞1、＞2、＞3、＞4、＞5 hm2"农村居民点聚集后耕作半径的变化,最后提出西昌市不同区域"合村并居"策略.研究结果表明:西昌市农村居民点破碎化程度高,微型与小型农村居民点数量占总数量的94.8%.河谷平原区、低山缓坡区、高山陡坡区适宜的耕作半径分别为3000～4000、750～950、550～750 m.河谷平原区农村居民点向大于3 hm2农村居民点聚集后,可形成具有一定规模的村庄,并满足耕作半径要求;低山缓坡区部分农村居民点可向大于1 hm2,且交通便捷的农村居民点集中,从而形成具有一定规模的农村居民点;高山陡坡区农村居民点就地迁并价值不高,除部分少数民族聚居点以外,其他农村居民点迁并工程应与退耕还林还草、异地扶贫搬迁、山地保护与修复等工程协同推进,逐渐向低山缓坡区与河谷平原区迁移.该方法可用于计算不同区域适宜的耕作半径,及不同合村并居情景对耕作半径的影响,从而提高合村并居规划的合理性. |
| Abstract_FL | Rural settlements consolidation is an important way for China to optimize the layout of rural settlements, and the farming radius is one of the important factors that need to be considered in the consolidation planning of rural settlements. In this paper, taking Xichang City, Sichuan Province as a case, the layout optimization method of rural settlements in mountainous areas based on farming radius analysis was discussed. First of all, the characteristics of rural settlements and the suitable farming radii in valley-plain area, gentle-slope area, steep-slope area were analyzed respectively. Then, in order to identify the locations of central villages, the farming radii of 3 regions (slope 0-6°, ≥6°-25°, ≥25°) under 7 scenarios (current situation, only retaining rural settlements of ＞0.5, ＞1, ＞2, ＞3, ＞4, ＞5 hm2, respectively) were analyzed. The Euclidean distance analysis tool in ArcGIS 10.2 was used to analyze the farming straight-line distance, and it can obtain the specific values of the average straight-line distance and the maximum straight-line distance in the study area, as well as the service range of different rural settlements. The network analysis tool in ArcGIS 10.2 was used to analyze the farming path-distance, and it can analyze the path-distances of different farmland patches to their nearest rural settlements and the service range of different rural settlements. The results show that the patch number of rural settlements in Xichang is 24367 and the total area of rural settlements is about 7764 hm2, accounting for about 2.9% of the total area of Xichang City, the average patch area is 3186 m2, and per capita area of rural settlements is 172 m2. The number of micro- and small-scale rural settlements in Xichang City accounts for 94.8% of the total number, so it is necessary to realize the intensive use of rural residential land by rural settlements consolidation. The average farming radius of Xichang is 147 m, and the farming radii of 3 regions increase linearly with the small rural settlements gathering to larger rural settlements. The ratio of micro- and small-scale rural settlement is steep-slope area ＞ gentle-slope area ＞ valley-plain area, so the relocation of micro- and small-scale rural settlements has the greatest impact on the farming distance in steep-slope area, followed by the gentle-slope area, and has the lowest impact on the valley-plain area. The suitable farming radii are 3000-4000, 750-950 and 550-750 m in the valley-plain area, gentle-slope area and steep-slope area respectively. The rural settlements in the valley-plain area should be gathered to the rural settlements of more than 3 hm2, which could not only form bigger villages but also meet the farming radius requirements. Some rural settlements in the gentle-slope area can be gathered to the rural settlements of more than 1 hm2and have convenient traffic, so as to form a rural residential area with a certain scale. The consolidation of rural settlements located in the steep-slope area has little significance, and should be promoted in cooperation with the projects of "Returning farmland to forest and grassland","Poverty alleviation and relocation in other places", "Protection and restoration of mountainous areas", and these rural settlements should be gradually migrated to the gentle-slope area and valley-plain area. |
| Author | 杨玥 李学东 杨波 赵涛 宇振荣 |
| AuthorAffiliation | 中国农业大学资源与环境学院生态科学与工程系,北京,100193%四川省国土资源厅,成都,610072%中国农业大学资源与环境学院生态科学与工程系,北京 100193;国土资源部农用地质量与监控重点实验室,北京 100035 |
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| Author_FL | Yang Bo Zhao Tao Yu Zhenrong Li Xuedong Yang Yue |
| Author_FL_xml | – sequence: 1 fullname: Li Xuedong – sequence: 2 fullname: Yang Yue – sequence: 3 fullname: Yang Bo – sequence: 4 fullname: Zhao Tao – sequence: 5 fullname: Yu Zhenrong |
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| DocumentTitle_FL | Layout optimization of rural settlements in mountainous areas based on farming radius analysis |
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| Keywords | 农村居民点整治 rural settlements consolidation 耕作半径 耕作距离 网络分析 land use farming radius 欧氏距离分析 farming distance network analysis 土地利用 rural areas euclidean distance analysis 农村 |
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| Publisher | 中国农业大学资源与环境学院生态科学与工程系,北京,100193%四川省国土资源厅,成都,610072%中国农业大学资源与环境学院生态科学与工程系,北京 100193 国土资源部农用地质量与监控重点实验室,北京 100035 |
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| Snippet | S17; 该文以四川省西昌市为例,探讨了基于耕作半径分析的山区农村居民点布局优化方法.首先对西昌市高山陡坡区、低山缓坡区、河谷平原区农村居民点特征进行分析,而后借助GIS欧... |
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| Title | 基于耕作半径分析的山区农村居民点布局优化 |
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