Descrição
This dataset contains a vegetation inventory from a study in Ethiopia and these data represent the trees and shrubs found in the exclosures (see methods section).
Aboveground biomass and carbon stocks were measured in three pools; i. e. aboveground biomass of woody plants, herbaceous vegetation and litter. A nested plot, with three sections was used in all land use types to assess the aboveground biomass of woody species, herbs and grasses, and litter. The size and shape of the main plot was fixed based on the diameter size and degree of homogeneity of the plant species sampled in that plot. Accordingly, two plot shapes of different sizes were selected; a rectangular plot of 1000 m2 (0.1 ha) for the E. globulus plantations (Ravindranath and Ostwald, 2008) and a square of 400 m2 (0.04 ha) for the exclosures and grazing lands (WBISPP, 2000). At the southwestern corner of each main plot, a sub-plot of 4 m2 was positioned for the biomass assessment of herbs and grasses. Within the 4 m2 plots, a sub-plot of 1 m2 was established randomly at one of the corners of the sub-plot, for the measurement of litter biomass.
In each main plot located in the exclosures and grazing lands, diameter at stump height (DSH) (30 cm from the ground) and total height of all trees and shrubs were measured. Local names of all plant species were recorded and plant specimens mainly from the foliage were also collected for subsequent identification. Diameter at breast height (DBH) and total height (H) of each E. globulus tree found in the main plot were also measured. DBH and DSH were measured by using calipers graduated in mm. Total height was measured using a meter tape or a hypsometer, depending on the height of the plant. Altitude and coordinates of each plot center were taken using GPS. Average slope was also measured at each plot using a clinometer.
Registros de Dados
Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 28 registros.
Também existem 3 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
Meley Mekonen, 2008. Change in aboveground biomass carbon stock following the establishment of exclosures on degraded lands in Tigray, Ethiopia, NMBU, Norwegian University of Lifesciences.
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é Norwegian University of Life Sciences (NMBU). This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 3ae1285c-1cdf-4bf6-bb97-0af43a81cb1b. Norwegian University of Life Sciences (NMBU) publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF Norway.
Palavras-chave
Samplingevent; vegetation inventory; trees; diameter
Contatos
- Usuário
Cobertura Geográfica
Ethopia
| Coordenadas delimitadoras | Sul Oeste [3,422, 32,954], Norte Leste [14,959, 47,789] |
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Metadados Adicionais
| Identificadores alternativos | 3ae1285c-1cdf-4bf6-bb97-0af43a81cb1b |
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| https://ipt.gbif.no/resource?r=ethopia-trees |