National Forest Inventory, 2013
Brazil, 2013
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Reference ID
BRA_2013_NFI_v01_EN_M_v01_A_OCS
Producer(s)
Brazilian Forest Service
Collections
Metadata
Created on
Jan 31, 2022
Last modified
Jun 30, 2024
Page views
2048
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Identification
Survey ID Number
BRA_2013_NFI_v01_EN_M_v01_A_OCS
Title
National Forest Inventory, 2013
Country
| Name | Country code |
|---|---|
| Brazil | BRA |
Series Information
A sample unit is re-measured every 5 years.
Abstract
The national forest inventory (NFI) is an action coordinated by the Brazilian Forest Service, which aims at the production of strategic information on forest resources in the country. The NFI is based on the collection of data in sample units distributed every 20 km throughout the Brazilian territory - or in shorter distances, depending on the specific interest of each region. Each sample unit must be visited by a trained team, which collects data on forest resources, such as diameter and height of the trees, collection of botanical material and soil samples, biological diversity, health and vitality of forests, stock. In addition, social-environmental functions are investigated through interviews with residents of the rural environment, allowing us to know about the uses of products and services of forests and their contribution to the family income.
Kind of Data
Maltese cross-shaped conglomerate
Unit of Analysis
Plants
Scope
Notes
Biological diversity of forest resources;
Forest health and vitality;
Forest stocks;
Social and environmental functions of forests;
Use of products and services from forests;
Contribution of forest products to family income;
Knowledge about environmental agencies and public policies;
Engagement in the protection and conservation of forests;
Perceptions about climate change.
Forest health and vitality;
Forest stocks;
Social and environmental functions of forests;
Use of products and services from forests;
Contribution of forest products to family income;
Knowledge about environmental agencies and public policies;
Engagement in the protection and conservation of forests;
Perceptions about climate change.
Topics
| Topic |
|---|
| Forest study, environmental study, forest inventory, biomass and carbon stock, and socio-environmental study of forest uses. |
Coverage
Universe
Communites living near forests and people that potentially use forest resources.
Producers and sponsors
Primary investigators
| Name |
|---|
| Brazilian Forest Service |
Producers
| Name | Role |
|---|---|
| Brazilian Agricultural Research Corporation | staff training, technical consults for creating and improving the NFI methodologies, soil samples storage |
Funding Agency/Sponsor
| Name | Abbreviation |
|---|---|
| Global Environment Facility | GEF |
| Brazilian Federal Government | |
| Inter-American Development Bank | BID |
Sampling
Sampling Procedure
The NFI standard grid consists of points equidistant at 20 km, called the 20 km x 20 km national standard grid. The densification of the grid may be necessary for special applications, e.g., in Brazil's protected areas, as a National Forest. These densifications can be 10 km x 10 km (level 2), 5 km x 5 km (level 3), and so on until 0,625 km x 0,625 km (level 6).
A conglomerate is installed on each point of the National Grid of Sampling Points (GNPA). The conglomerate is shaped like the Maltese Cross, consisting of four rectangular subunits of fixed area, perpendicularly positioned and oriented towards the cardinal points and numbered from 1 to 4.
The size of the subunit is related to the characteristics of existing forests in Brazilian biomes. The Biomes 'Atlantic Forest', 'Cerrado', 'Caatinga', 'Pantanal' and 'Pampas' present subunits of ??1,000 m² (20 m x 50 m); The Biome Amazon present subunits of 2,000 m² (20 m x 100 m). Each of these sub-units is subdivided into 10 m x 10 m subplots.
The interviews is carried out with residents living near the conglomerates. Up to four interviews is conducted within a radius of 10 km from the central point of the conglomerate.
A conglomerate is installed on each point of the National Grid of Sampling Points (GNPA). The conglomerate is shaped like the Maltese Cross, consisting of four rectangular subunits of fixed area, perpendicularly positioned and oriented towards the cardinal points and numbered from 1 to 4.
The size of the subunit is related to the characteristics of existing forests in Brazilian biomes. The Biomes 'Atlantic Forest', 'Cerrado', 'Caatinga', 'Pantanal' and 'Pampas' present subunits of ??1,000 m² (20 m x 50 m); The Biome Amazon present subunits of 2,000 m² (20 m x 100 m). Each of these sub-units is subdivided into 10 m x 10 m subplots.
The interviews is carried out with residents living near the conglomerates. Up to four interviews is conducted within a radius of 10 km from the central point of the conglomerate.
Weighting
Weights are not applied.
Data Collection
Dates of Data Collection
| Start |
|---|
| 2013 |
Data Collection Mode
Face-to-face paper [f2f]
Access policy
Contacts
| Name | |
|---|---|
| Humberto Navarro | [email protected] |
| Tiago Thomazi | [email protected] |
Confidentiality
See https://snif.florestal.gov.br/en/accessibility
Access conditions
See https://snif.florestal.gov.br/en/accessibility
Citation requirements
SERVIÇO FLORESTAL BRASILEIRO (SFB). Inventário Florestal Nacional – IFN. Brasília, 2021. Disponível em:< http://snif.florestal.gov.br/pt-br/inventario-florestal-nacional-ifn>. Acesso em: dd mmm. ano.
Disclaimer and copyrights
Disclaimer
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses
Metadata production
DDI Document ID
DDI_BRA_2013_NFI_v01_EN_M_v01_A_OCS_FAO
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Office of Chief Statistician | OCS | Food and Agriculture Organization | Metadata adapted for FAM |
| Javier GarciaPerez | Food and Agriculture Organization | Metadata producer |