A comparison of forest structural methods of semiarid mangrove species using a field-based approach
The data obtained from field-based forest inventories, mainly basal area and stem density, are relevant for the analysis of aboveground biomass and forest fragmentation. Due to its persistently flooded ground, fieldwork in mangrove forests is time-consuming and complicated. Since mangroves are sens...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2024-02-01
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| Series: | Ciencias Marinas |
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| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3432 |
| _version_ | 1797279566946893824 |
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| author | Francisco Flores-de-Santiago Francisco Flores-Verdugo |
| author_facet | Francisco Flores-de-Santiago Francisco Flores-Verdugo |
| author_sort | Francisco Flores-de-Santiago |
| collection | DOAJ |
| description |
The data obtained from field-based forest inventories, mainly basal area and stem density, are relevant for the analysis of aboveground biomass and forest fragmentation. Due to its persistently flooded ground, fieldwork in mangrove forests is time-consuming and complicated. Since mangroves are sensitive to the effects of climate change, selecting a reliable field method is of utmost importance. To this end, we analyzed 4 mangrove classes: Rhizophora mangle (RM), Laguncularia racemosa (LR), Avicennia germinans (AG), and AG shrub. We georeferenced and counted all mangrove stems within four 0.04 ha (20 × 20 m square). We analyzed data from 3 circular area plots and the plotless point-centered quarter method (PCQM) based on the original square plots. Depending on the mangrove class, PCQM overestimated basal area by up to 34% and stem density by 21%. The 3 circular plot surveys underestimated basal area from –1% to –29% and stem density from –3 to –25%. Based on the results, we suggest using a circular plot of 0.04 ha (r = 11.28 m) in less dense forests (RM and AG) and a circular plot of 0.015 ha (r = 6.9 m) with forest densities greater than 3,500 stems/ha (LR and AG shrub). The advantages of using the circular plot approach over PCQM are that mangrove inventories can be quantified quickly and do not require a minimum number of sampling points.
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| first_indexed | 2024-03-07T16:27:56Z |
| format | Article |
| id | doaj.art-c3621e32235c4e8fac72ae88fabcd91b |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:27:56Z |
| publishDate | 2024-02-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-c3621e32235c4e8fac72ae88fabcd91b2024-03-03T17:25:31ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532024-02-015010.7773/cm.y2024.3432A comparison of forest structural methods of semiarid mangrove species using a field-based approachFrancisco Flores-de-Santiago0Francisco Flores-Verdugo1Universidad Nacional Autónoma de MéxicoUniversidad Nacional Autónoma de México The data obtained from field-based forest inventories, mainly basal area and stem density, are relevant for the analysis of aboveground biomass and forest fragmentation. Due to its persistently flooded ground, fieldwork in mangrove forests is time-consuming and complicated. Since mangroves are sensitive to the effects of climate change, selecting a reliable field method is of utmost importance. To this end, we analyzed 4 mangrove classes: Rhizophora mangle (RM), Laguncularia racemosa (LR), Avicennia germinans (AG), and AG shrub. We georeferenced and counted all mangrove stems within four 0.04 ha (20 × 20 m square). We analyzed data from 3 circular area plots and the plotless point-centered quarter method (PCQM) based on the original square plots. Depending on the mangrove class, PCQM overestimated basal area by up to 34% and stem density by 21%. The 3 circular plot surveys underestimated basal area from –1% to –29% and stem density from –3 to –25%. Based on the results, we suggest using a circular plot of 0.04 ha (r = 11.28 m) in less dense forests (RM and AG) and a circular plot of 0.015 ha (r = 6.9 m) with forest densities greater than 3,500 stems/ha (LR and AG shrub). The advantages of using the circular plot approach over PCQM are that mangrove inventories can be quantified quickly and do not require a minimum number of sampling points. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3432Point-centered quarter methodCircular plotsBasal areaStem density |
| spellingShingle | Francisco Flores-de-Santiago Francisco Flores-Verdugo A comparison of forest structural methods of semiarid mangrove species using a field-based approach Ciencias Marinas Point-centered quarter method Circular plots Basal area Stem density |
| title | A comparison of forest structural methods of semiarid mangrove species using a field-based approach |
| title_full | A comparison of forest structural methods of semiarid mangrove species using a field-based approach |
| title_fullStr | A comparison of forest structural methods of semiarid mangrove species using a field-based approach |
| title_full_unstemmed | A comparison of forest structural methods of semiarid mangrove species using a field-based approach |
| title_short | A comparison of forest structural methods of semiarid mangrove species using a field-based approach |
| title_sort | comparison of forest structural methods of semiarid mangrove species using a field based approach |
| topic | Point-centered quarter method Circular plots Basal area Stem density |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3432 |
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