Assessing Forest Cover Loss Using Landsat Images and GIS: A Case Study in Colombian Protected Area

IF 1.2 4区农林科学 Q3 FORESTRY

Journal of Sustainable Forestry Pub Date : 2022-09-14 DOI:10.1080/10549811.2022.2123356

Wendy Miranda-Castro, R. Acevedo-Barrios, M. Guerrero, Katherine Guzmán, Sayana de Gorostizaga

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引用次数: 0

Abstract

ABSTRACT The Corchal “El Mono Hernández” Fauna and Flora Sanctuary is a protected area located in northern Colombia and is home to the Pterocarpus officinalis forest. In this area, however, this forest cover is declining due to natural causes associated with a change in the hydrosedimentological dynamics. Multitemporal assessment was performed to quantify the forest loss. Landsat images from the years 1986, 1998, 2003, 2013, and 2018 were downloaded and a supervised classification was performed using four cover classes: “Pterocarpus officinalis,” “other vegetation,” “waterbody,” and “bare land.” The results showed that the vegetation cover of Pterocarpus officinalis forest had an initial extent of 865.26 ha in 1986; for the 1986–1998 period, the reduction was 60.30 ha; for the 1998–2003 period, it was 399.15 ha; and for the 2003–2013 period, it was 78.30 ha. Contrary to previous periods, in the 2013–2018 period, 79.65 ha of forest was recovered. In conclusion, Pterocarpus officinalis forest lost approximately 50% of its cover during the 1986–2018 period. This information is of great importance for government and management entities for decision-making in the conservation and restoration of this forest.

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基于Landsat图像和GIS的森林覆盖损失评估:以哥伦比亚保护区为例

摘要Corchal“El Mono Hernández”动植物保护区位于哥伦比亚北部，是Pterocarpus officinalis森林的所在地。然而，在该地区，由于与水文地质动力学变化相关的自然原因，森林覆盖率正在下降。进行了多时间评估，以量化森林损失。下载1986年、1998年、2003年、2013年和2018年的陆地卫星图像，并使用四个覆盖类别进行监督分类：“Pterocarpus officinalis”、“其他植被”、“水体”和“裸地”；1986年至1998年期间，减少面积为60.30公顷；1998年至2003年期间为399.15公顷；2003-2013年期间为78.30公顷。与之前的时期相反，在2013-2018年期间，恢复了79.65公顷的森林。总之，在1986年至2018年期间，Pterocarpus officinalis森林失去了约50%的覆盖率。这些信息对政府和管理实体在保护和恢复森林方面的决策具有重要意义。

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来源期刊

Journal of Sustainable Forestry Social Sciences-Geography, Planning and Development

CiteScore

3.90

自引率

12.50%

发文量

期刊介绍： Journal of Sustainable Forestry publishes peer-reviewed, original research on forest science. While the emphasis is on sustainable use of forest products and services, the journal covers a wide range of topics from the underlying biology and ecology of forests to the social, economic and policy aspects of forestry. Short communications and review papers that provide a clear theoretical, conceptual or methodological contribution to the existing literature are also included in the journal. Common topics covered in the Journal of Sustainable Forestry include: • Ecology, management, recreation, restoration and silvicultural systems of all forest types, including urban forests • All aspects of forest biology, including ecophysiology, entomology, pathology, genetics, tree breeding, and biotechnology • Wood properties, forest biomass, bioenergy, and carbon sequestration • Simulation modeling, inventory, quantitative methods, and remote sensing • Environmental pollution, fire and climate change impacts, and adaptation and mitigation in forests • Forest engineering, economics, human dimensions, natural resource policy, and planning Journal of Sustainable Forestry provides an international forum for dialogue between research scientists, forest managers, economists and policy and decision makers who share the common vision of the sustainable use of natural resources.