精油是芳香植物的天然产物,具有多种用途。精油已在全球范围内进行交易,并在各个行业中使用。印尼是世界第六大精油生产国,但是土地退化是继续开采和利用天然产物的风险。在退化的土地上生产精油植物是减轻这种风险的潜在策略。这项研究旨在确定印度尼西亚的退化土地,这些土地可能是五种野生本地精油生产植物的合适栖息地,即短枝硬草(L.)Miq。,BaeckeafrutescensL.,CynometracaulifloraL.,蒙大拿州木兰(Blume)Figlar,和木兰summatranavar。glauca(Blume)Figlar&Noot使用各种物种分布模型。
■通过比较10个物种分布模型来预测这些物种的栖息地适宜性,包括Bioclim,分类和回归树(CART),灵活判别分析(FDA),Maxlike,增强回归树(BRT),多元自适应回归样条(MARS),广义线性模型(GLM),游侠,支持向量机(SVM),和随机森林(RF)。生物气候,地形和土壤变量被用作模型栖息地适宜性的预测因子。根据其AUC和TSS度量评估模型。模型选择基于排名表现。通过将模型与退化的土地位置重叠,得出了印度尼西亚退化土地上五种本地精油生产植物的总合适面积。
■很好地预测了这些物种的栖息地适宜性模型,AUC值>0.8,TSS值>0.7。影响这些物种栖息地适宜性的最重要的预测变量是最潮湿季度的平均温度,降水季节性,最温暖的季度降水,降水最冷的季度,阳离子交换能力,氮,沙子,和土壤有机碳。C.花椰菜具有最大的预测适宜面积,紧随其后的是蒙大拿先生,B.frutescens,M.sumatranavar.glauca,和花梗。预测栖息地适宜性与退化土地之间的重叠区域表明,印度尼西亚森林地区的大多数退化土地都适合这些物种。
■被预测为五种本地精油生产植物的合适栖息地的退化土地在整个印度尼西亚广泛传播,主要在其主要岛屿。印度尼西亚政府可以使用这些发现来评估退化的土地利用和恢复政策,以提高土地生产力。
UNASSIGNED: Essential oils are natural products of aromatic plants with numerous uses. Essential oils have been traded worldwide and utilized in various industries. Indonesia is the sixth largest essential oil producing country, but land degradation is a risk to the continuing extraction and utilization of natural products. Production of essential oil plants on degraded lands is a potential strategy to mitigate this risk. This study aimed to identify degraded lands in Indonesia that could be suitable habitats for five wild native essential oil producing plants, namely Acronychia pedunculata (L.) Miq., Baeckea frutescens L., Cynometra cauliflora L., Magnolia montana (Blume) Figlar, and Magnolia sumatrana var. glauca (Blume) Figlar & Noot using various species distribution models.
UNASSIGNED: The habitat suitability of these species was predicted by comparing ten species distribution models, including Bioclim, classification and regression trees (CART), flexible discriminant analysis (FDA), Maxlike, boosted regression trees (BRT), multivariate adaptive regression splines (MARS), generalized linear models (GLM), Ranger, support vector machine (SVM), and Random Forests (RF). Bioclimatic, topographic and soil variables were used as the predictors of the model habitat suitability. The models were evaluated according to their AUC and TSS metrics. Model selection was based on ranking performance. The total suitable area for five native essential oil producing plants in Indonesia\'s degraded lands was derived by overlaying the models with degraded land locations.
UNASSIGNED: The habitat suitability model for these species was well predicted with an AUC value >0.8 and a TSS value >0.7. The most important predictor variables affecting the habitat suitability of these species are mean temperature of wettest quarter, precipitation seasonality, precipitation of warmest quarter, precipitation of coldest quarter, cation exchange capacity, nitrogen, sand, and soil organic carbon. C. cauliflora has the largest predicted suitable area, followed by M. montana, B. frutescens, M. sumatrana var. glauca, and A. pedunculata. The overlapping area between predictive habitat suitability and degraded lands indicates that the majority of degraded lands in Indonesia\'s forest areas are suitable for those species.
UNASSIGNED: The degraded lands predicted as suitable habitats for five native essential oil producing plants were widely spread throughout Indonesia, mostly in its main islands. These findings can be used by the Indonesian Government for evaluating policies for degraded land utilization and restorations that can enhance the lands\' productivity.