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| 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 |
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| Abstract: |
| 【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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