Описание
This is the extracted data of the post-logging regeneration of commercial species in forest concessions under sustainable management (FSCM) in Gabon project funded by Sud Expert Plantes Développement Durable program (SEP2D) under the AAP2-81 project code. The main aim of this project was to support logging companies involved in the certification process to monitor forest regeneration relating to Forest Stewardship for the Congo Basin Region (FSC) which recommends the forest manager to set up mechanisms to monitor natural regeneration in the areas impacted by logging according to 6.3.2 indicator. Study was carried in the certified FSCM of the Rougier-Gabon company by the Institut de Recherche en Ecologie Tropicale (IRET). To monitor forest dynamic and trees regeneration of the forest areas impacted by logging, data from 652 plots of 30 m2 established on the skid trails and the 141 others from felling gaps whose sizes vary between 3,8 to 20 m2 was exploited. Skid trails are used for log extraction. Every tree ≥ 1 cm in diameter at breast height (dbh; 1.3 m above ground level) was measured.
Записи данных
Данные этого sampling event ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 793 записей.
Также в наличии 1 таблиц с данными расширений. Записи расширений содержат дополнительную информацию об основной записи. Число записей в каждой таблице данных расширения показано ниже.
Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.
Версии
В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.
Как оформить ссылку
Исследователи должны дать ссылку на эту работу следующим образом:
Engone Obiang N L, Mboma R, Mba Nzuè M, Niangadouma R, Menvi Nzomo J, Magama-Mucketou A, Chézeaux É (2023): Forest dynamic and trees regeneration in the logging gaps in Gabon. v1.6. Herbier National du Gabon. Dataset/Samplingevent. https://ipt-gabon.gbif.fr/resource?r=regefor&v=1.6
Права
Исследователи должны соблюдать следующие права:
Публикующей организацией и владельцем прав на данную работу является Herbier National du Gabon. Эта работа находится под лицензией Creative Commons Attribution (CC-BY 4.0).
Регистрация в GBIF
Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: 3eaece88-38a5-4252-9f34-e90b05fdbfba. Herbier National du Gabon отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке Participant Node Managers Committee.
Ключевые слова
Samplingevent; plants; Gabon; post-logging regeneration
Контакты
- Metadata Provider ●
- Originator ●
- Point Of Contact
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- Point Of Contact
- Originator
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- Originator
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- Point Of Contact
- Publisher
Географический охват
Study was carried out in the certified forest concessions of Rougier-Gabon, especially those of Haut-Abanga, in the northwest (293,833 ha) and Moyabi (188,989 ha), in the southeast of Gabon.
| Ограничивающие координаты | Юг Запад [-4,171, 8,833], Север Восток [2,416, 14,81] |
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Таксономический охват
These data that come from 793 plots contain 6251 trees including 276 species, 184 genera and 56 families. The both logging gaps are characterized by the similar floristic compositions where the light-demanding taxa as Macaranga, Alcornea, Xylopia, Discoglypremna, Dichostemma and Harungana are more abundants.
| Family | Apocynaceae, Aptandraceae, Asteraceae, Burseraceae, Cannabaceae, Cardiopteridaceae, Centroplacaceae, Chrysobalanaceae, Clusiaceae, Connaraceae, Coulaceae, Dipterocarpaceae, Ebenaceae, Erythroxylaceae, Euphorbiaceae, Fabaceae, Gelsemiaceae, Gentianaceae, Huaceae, Hypericaceae, Irvingiaceae, Ixonanthaceae, Lamiaceae, Lauraceae, Lecythidaceae, Malvaceae, Melastomataceae, Meliaceae, Moraceae, Myristicaceae, Myrtaceae, Ochnaceae, Olacaceae, Pandaceae, Passifloraceae, Peraceae, Phyllanthaceae, Polygalaceae, Putranjivaceae, Rhamnaceae, Rhizophoraceae, Rubiaceae, Rutaceae, Salicaceae, Sapindaceae, Sapotaceae, Simaroubaceae, Stemonuraceae, Strombosiaceae, Thomandersiaceae, Urticaceae, Violaceae, Vochysiaceae |
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Временной охват
| Дата начала / Дата окончания | 2018-06-02 / 2020-09-02 |
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Данные проекта
Specifically, this project aims to fill data gaps through Digitalization of herbarium specimens at the National Herbarium of Gabon (LBV). The images of the scanned specimens will be linked and available online in a database that has already been developed during the previous project. We plan to scan about 2000 herbarium specimens. Categorization of medicinal, cosmetic, endemic and threatened plants using an existing database created during the a previous BID project. Further categorization will improve the database and will greatly accelerate their utilization. Habitat modeling of commercial timber species for their sustainable management in Gabon. This activity will concern the main commercial timber and threatened species. Appropriate communication tools about data to decision-makers such as the production of online checklists of medicinal, endemic and cosmetic plants, and writing policy briefs for policy-makers.
| Название | Mobilization and use of botanical data as decision-making tools in Gabon |
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| Идентификатор | BID-AF2020-194-USE |
| Финансирование | JRS Biodiversity Foundation GBIF |
Исполнители проекта:
- Publisher
Методы сбора
To collect data, 652 plots was established on the skid trails and the 141 others in the felling gaps of the two forest concessions, either a total of 793 plots.
| Охват исследования | Study was carried in two FSCM of the Rougier-Gabon company, that of Haut-Abanga (288,626 ha), in the northwest and the Moyabi one, in the southeast of Gabon (71,716 ha). Rougier-Gabon was also a project partner. |
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| Контроль качества | GBIF species matching and BRAHMS database was used for data quality control. After species identification in the field their confirmation was done by the Herbier national du Gabon botanists. |
Описание этапа методики:
- In the two FSCM of the Rougier-Gabon company, data come from 652 plots of 30 m2 in the skid trails and the 141 others whose size varies from 3.38 to 20 m2 from felling gaps. The skid trails and the felling gaps are themselves located in the annual areas cutting from 0 to 26 years old. The plots, 100 m apart from center to center, was placed along the skid trails and numbered from 1 to n; 1 being the first plot, adjacent to the road or park and n le last one, inside the forest. The plots of the felling gaps of the same area (20 m2) were successively placed in the axis which connects the stump to the crown. They were also numbered from 1 (first plot after the stump) to n, last plot of variable size X. In the two cases, every tree ≥ 1 cm in diameter at breast height (dbh; 1.3 m above ground level) was measured.
Библиографические ссылки
- Brunck, F., Grison, F., & Maitre, H. F. (1990). Okoume (Aucoumea klaineana): a monograph. Okoume (Aucoumea klaineana): a monograph.
- Engone Obiang N.L., Ngomanda A., Hymas O., Chézeaux É. & Picard N. 2014. Diagnosing the demographic balance of two light-demanding tree species populations in central Africa from their diameter distribution. Forest Ecology and Management 313: 55–62.
- Engone Obiang Nestor, Mba Nzuè Martial-T et Niangadouma Raoul – 2019 : Régénération post exploitation des essences commerciales dans les concessions forestières sous aménagement durable au Gabon. Rapport final du projet Sud Expert Plante AAP2-81
- Gravel, D., Canham, C. D., Beaudet, M., & Messier, C. (2010). Shade tolerance, canopy gaps and mechanisms of coexistence of forest trees. Oikos, 119(3), 475-484.
- Poorter, L., & Rose, S. A. (2005). Light-dependent changes in the relationship between seed mass and seedling traits: a meta-analysis for rain forest tree species. Oecologia, 142(3), 378-387. Rougier Gabon, Plan d’aménagement des CAD du Haut Abanga et de Moyabi
Дополнительные метаданные
| Альтернативные идентификаторы | 3eaece88-38a5-4252-9f34-e90b05fdbfba |
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| https://ipt-gabon.gbif.fr/resource?r=regefor |