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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
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Tropical Dry Forest Dynamics Explained by Topographic and Anthropogenic Factors : A Case Study in Mexico
| Title: | Tropical Dry Forest Dynamics Explained by Topographic and Anthropogenic Factors : A Case Study in Mexico |
| Authors: | Gao, Yan Browse this author | | Solorzano, Jonathan V. Browse this author | | Estoque, Ronald C. Browse this author →KAKEN DB | | Tsuyuzaki, Shiro Browse this author →KAKEN DB |
| Keywords: | land use and land cover change | | shifting cultivation | | tropical forest gain and loss | | topographic factors | | distance to roads | | logistic regression |
| Issue Date: | 6-Mar-2023 |
| Publisher: | MDPI |
| Journal Title: | Remote Sensing |
| Volume: | 15 |
| Issue: | 5 |
| Start Page: | 1471 |
| Publisher DOI: | 10.3390/rs15051471 |
| Abstract: | Tropical dry forest is one of the most threatened ecosystems, and it is disappearing at an alarming rate. Shifting cultivation is commonly cited as a driver of tropical dry forest loss, although it helps to maintain the forest coverage but with less density. We investigated tropical dry forest dynamics and their contributing factors to find out if there is an equilibrium between these two processes. We classified multi-temporal Sentinel-2A images with machine learning algorithms and used a logistic regression model to associate topographic, anthropogenic, and land tenure variables as plausible factors in the dynamics. We carried out an accuracy assessment of the detected changes in loss and gain considering the imbalance in area proportion between the change classes and the persistence classes. We estimated a 1.4% annual loss rate and a 0.7% annual gain rate in tropical dry forest and found that the topographic variable of slope and the anthropogenic variable of distance to roads helped explain the occurrence probability of both tropical forest loss and tropical forest gain. Since the area estimation yielded a wide confidence interval for both tropical forest loss and gain despite the measures that we took to counterbalance the disproportion in areas, we cannot conclude that the loss process was more intense than the gain process, but rather that there was an equilibrium in tropical dry forest dynamics under the influence of shifting cultivation. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/89237 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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