| 周海菊，胡靓达，喻素芳.基于 GIS 和空间自相关模型的南宁市林地空间变化研究[J].广东农业科学,2022,49(1):51-61 |
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基于 GIS 和空间自相关模型的南宁市林地空间变化研究 |
| Research on Spatial Change of Forestland in Nanning City Based on GIS Platform and Spatial Autocorrelation Model |
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| DOI：10.16768/j.issn.1004-874X.2022.01.006 |
| 中文关键词: 天然林 人工林 空间分布 转移矩阵 空间自相关性 |
| 英文关键词: natural forest plantation spatial distribution transfer matrix spatial autocorrelation |
| 基金项目:世界自然基金会项目（10000759）；广西重大研究项目（KTZB-2019-09） |
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| 摘要点击次数: 1051 |
| 全文下载次数: 639 |
| 中文摘要: |
| 【目的】掌握南宁市林地时空分布的变化规律，为制定科学有效的林地管理措施提供基础数
据。【方法】基于2008、2013、2018年3期南宁市森林资源调查数据，应用空间统计技术，结合转移矩阵及空
间自相关模型，分析不同时期南宁市林地分布格局，探究林地时空分布动态变化特征及空间聚集规律。【结
果】2008—2018年，南宁市天然林面积减少2.39×104
hm2
，人工林面积增加2.60×104
hm2
，其他林地面积减少
2.98×104
hm2
，林地总面积略有减少；林地类型变化繁杂，天然林和其他林地主要转化为人工林，人工林主要转
化为非林地，其中2013—2018年林地变化更为剧烈；天然林和人工林的分布均具有显著的空间自相关性，天然
林的空间自相关性高于人工林。整个研究期间，天然林和人工林的空间聚集性均呈下降趋势。【结论】2008—
2018年南宁市林地发生较大的转移及变化，为有效保护林地、实现森林资源的可持续发展，需进一步加强实施
科学有效的林地资源保护政策和措施。 |
| 英文摘要: |
| 【Objective】In order to provide basic data for working out scientific and effective forestland management
measures, the law of temporal and spatial distribution of forestland in Nanning was mastered.【Method】Based on the
data of forestland resources in Nanning in 2008, 2013 and 2018, the study analyzed the distribution patterns of forestland
at different periods, the dynamic characteristics of spatio-temporal distribution of forestland and spatial aggregation of
forestland by using spatial statistical techniques, transfer matrix and spatial autocorrelation model. 【Result】From 2008
to 2018, in Nanning, the area of natural forests decreased by 2.39×104 hm2, the area of plantation increased by 2.60×104
hm2
, the area of other decreased by 2.98×104 hm2 and the total area of forestland decreased slightly. The spatial variation
of forestland types was rather complicated. Natural forests and other woodlands were mainly transformed into plantation,
and the main flow of plantation was non-forest land. The changes of forestland types were more frequent during 2013-2018.
Natural forest and plantation had significant spatial autocorrelation（P<0.01）, and the spatial autocorrelation of natural
forest was higher than that of plantation. The spatial aggregation of natural forest and plantation decreased gradually during the study period. 【Conclusion】During 2008-2018, significant changes have taken place in the forestland in Nanning. In order
to effectively protect forestland and achieve sustainable development of forest resources, it is necessary to further strengthen the
implementation of scientific and effective protection policies and measures of forestland resources. |
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