文章摘要
郭景怡,邵建勋,岳永杰,李 婧,文 明,钟淇涵.基于GIS 的科尔沁沙地土地利用格局变化分析[J].林业调查规划,2025,50(2):162-171
基于GIS 的科尔沁沙地土地利用格局变化分析
Land Use Pattern Changes in Horqin Sandy Land Based on GIS
  
DOI：
中文关键词: 土地利用格局  ArcGIS  转移矩阵  科尔沁沙地
英文关键词: land use patterns  ArcGIS  transfer matrix  Horqin sandy land
基金项目:内蒙古自治区科技重大专项专题(2019ZD0070402);退化沙地乔—灌—草近自然配置治理技术(2019ZD00704).
作者单位
郭景怡 林西县林业和草原局,内蒙古 赤峰 025250 
邵建勋 林西县城市管理综合行政执法局,内蒙古 赤峰 025250 
岳永杰 内蒙古农业大学 林学院,内蒙古 呼和浩特 010019 
李 婧 包头市林业和草原局,内蒙古 包头 014000 
文 明 乌兰察布市森林草原防火中心,内蒙古 乌兰察布 012000 
钟淇涵 内蒙古农业大学 林学院,内蒙古 呼和浩特 010019 
摘要点击次数: 58
全文下载次数: 43
中文摘要:
      以科尔沁沙地14个市县(旗) 为研究区,依托数据源和ArcGIS,利用土地利用演变空间格局分析法探究区域土地利用变化程度、揭示土地利用演替规律、明确各利用类型土地间流动情况。结果表明,2020年,研究区范围内共有土地约116 335 km2,从分布面积来看,草地>耕地>林地>沙地> 未利用土地>建设用地>水域>滩地,分别占比38.46%、27.05%、16.15%、8.05%、6.23%、2.41%、1.01%、0.64%;各土地利用类型变化速率表现为“有减有增”,K值为正的有耕地、林地、滩地、建设用地、沙地,增速分别为2.79%、6.25%、1.02%、1.80%、0.59%,K值为负的有草地、水域、未利用土 地,增速分别为-2.46%、-2.63%、-0.17%;30年间各地类均存在相互转化情况,草地的转出幅度最大,共减少了24 947.7 km2。耕地的转出面积次之,主要流向林地和草地,转出量为6 212.7 km2。 林地转入比转出剧烈,变化量分别为10 491.0、3 269.7 km2。沙地变化幅度较小,面积处于稳定持 平状态。滩地面积、建设用地面积呈现扩张趋势,而水域面积呈现逐年下降趋势。
英文摘要:
      With 14 cities and counties (banners) of Horqin sandy land as research areas, this paper explored the change degree of regional land use, revealed the law of land use succession, and found out the mobilization between all land types with method of spatial pattern analysis for land use succession by means of ArcGIS and data source. The results showed that in 2020, the study area covered approximately 116 335 km2. The distribution areas of land use types were ranked as follows: grassland >cultivated land > forest land > sandy land > unused land > construction land > water area > bottom land, accounting for 38.46%, 27.05%, 16.15%, 8.05%, 6.23%, 2.41%, 1.01%, and 0.64%, respectively. The change rate of all land types showed a trend of “both decrease and increase”. Cultivated land, forest land, bottom land, construction land and sandy land had positive K values with increase rate of 2.79%, 6.25%, 1.02%, 1.80% and 0.59% respectively, while grassland, water area and unused land had negative K values with increase rate of -2.46%, -2.63% and -0.17% respectively. Over the past 30 years, mutual transformations between land use types occurred. The transfer-out area of grassland was 24 947.7 km2, which was the biggest. The transfer-out area of cultivated land was 6 212.7 km2, which was the second biggest, and the cultivated land was mainly transferred to forest land and grassland. The transferin area of forest land was 10 491.0 km2, which was much greater than the transfer-out area of 3 269.7 km2. The sandy land showed minor changes, remaining relatively stable. The bottom land and construction land areas expanded, while water area declined year by year.
查看全文   查看/发表评论  下载PDF阅读器
关闭