Native Metallophytes on Ultramafic Wooded Grassland in Sta Cruz, Mindoro Occidental, Philippines: Insights Into Phytostabilization and Forest Restoration

IF 0.5 Q4 AGRONOMY
Marilyn Ong Quimado, Jonathan Ogayon Hernandez, Crusty Estoque Tinio, Maria Patrice Salazar Cambel, Amelita Carpio Luna, Edwino Sanson Fernando
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Abstract

The native metallophytes species are the optimum choice to restore degraded areas on ultramafic soil. However, a limited restorative floristic survey on the wooded grassland of Mindoro Occidental had been reported. Four 20 m x 20 m plots were established to rapidly assess the plant diversity of a wooded grassland on ultramafic soil in Sta. Cruz, Mindoro Occidental, Philippines. Diversity index (H`), relative density, relative dominance, and importance value (IV) were computed. Physicochemical characteristics and heavy metal contents of the soil in the site were analytically determined. We identified 43 morpho-species of plants belonging to 25 families. Thirty-six of the morpho-species identified are Philippine natives and typically grow on ultramafic forests. Nine species out of the top 10 trees with the highest IV are native ones, with Buchanania arborescens Blume as the most dominant. The estimate of Relative Cover (%) also showed native species. Poles and sapling dominated the area, suggesting that active regeneration is taking place. Further, 72.94% of the ground cover were represented by tree flora recruits (e.g., B. arborescens, Alstonia macrophylla). The sites have overall moderate diversity (H` index of 2.7). The soil contains a high amount of Nickel, Chromium, Iron, and Manganese. There were no Nickel hyperaccumulators but 22 native species showed Aluminum and Silicon hyperaccumulation. Therefore, the study revealed that the surveyed area is home to important metallophytes that have the potential for phytostabilization and reforestation.

菲律宾西民都洛岛Sta Cruz超铁性木林草地上的原生金属植物:植物稳定和森林恢复的见解
原生金属植物是超镁质土壤退化区恢复的最佳选择。然而,对西民都洛岛树木繁茂的草地进行了有限的恢复植物区系调查。采用4个20 m × 20 m的样地,快速评价了南昌市超湿润土壤上木林草地的植物多样性。克鲁兹,西民都洛岛,菲律宾。计算多样性指数(H’)、相对密度、相对优势度和重要性值(IV)。分析测定了场地土壤的理化特征和重金属含量。鉴定出植物形态种43种,隶属于25科。已确定的形态物种中有36种是菲律宾本土物种,通常生长在超阔叶林上。在指数最高的10种树木中,有9种是本地树种,其中Buchanania arborescens</em>Blume是最占优势的。相对盖度(%)的估计也显示了本地物种。杆子和树苗在该地区占主导地位,这表明正在进行积极的再生。此外,72.94%的地被覆盖以乔木植物群为代表(如:<em>B)。乔木</em>; <;em>;总体多样性中等,H′指数为2.7。土壤中含有大量的镍、铬、铁和锰。22种原生植物表现出铝和硅的超富集。因此,研究表明,调查区是重要的金属植物的家园,具有植物稳定和再造林的潜力。
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来源期刊
Sains Tanah
Sains Tanah Environmental Science-Pollution
CiteScore
1.90
自引率
0.00%
发文量
16
审稿时长
8 weeks
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