Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

Damen, M. C. J.

Bibliographic data

Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856343064

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: XV, 547 Seiten

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856343064

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Damen, M. C. J.

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: 4 Renewable resources in rural areas: Vegetation, forestry, agriculture, soil survey, land and water use. Chairman: J. Besenicar, Liaisons: M. Molenaar, Th. A. de Boer

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: A remote sensing aided inventory of fuelwood volumes in the Sahel region of west Africa: A case study of five urban zones in the Republic of Niger. Steven J. Daus & Mamane Guero, Lawally Ada

Document type:: Multivolume work

Structure type:: Chapter

403 Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 A remote sensing aided inventory of fuelwood volumes in the Sahel region of west Africa: A case study of five urban zones in the Republic of Niger Steven J.Daus & Mamane Guero Resources Inventory and Monitoring section, Forestry and Land Use Planning project, Niamey, Niger Lawally Ada Department of Agronomy, University of Niamey, Niger Abstract: An inventory of fuelwood volume has been conducted in five urban zones, totaling approximately 150,000 square kilometers, in the Republic of Niger using an approach aided by the interpretation of LANDSAT satellite images and medium scale aerial photography. The purpose was to provide planning level information to assist the government of Niger (GON) in making a general assessment of fuelwood supplies available in important regions of the country. Using a soil/vegetation/land form base map (at a scale of 1/200,000), produced with the aid of the LANDSAT imagery and the aerial photography, 349 field sites were identified for the collection of field data. The sites were selected using a multi-level list sample with a bias toward known forestry types. Linear transect data was collected at each site and fuelwood volume estimates were generated using cover percentage and height data in a multiple regression procedure. Resume: Une inventaire du volume du bois de chauffage a était fait dans cinq zones urbans de la Republique du Niger aide par 1'interpretation des images satellites LANDSAT et photos aeriennes a echelle moyenne. Le but d'inventaire était de donner au governement les renseignements au niveau de la plannification concernant l'offre du bois de chauffage disponible a la population dans les cinq zones importants, une superficie total de environs 150.000 kilometres carre. Un total de 349 sites de terrain a était reparti a l'aid d'une carte sol/vegetation/forme de terrain realise des efforts comprenee de 1'interpretation des images satellites et les photos aeriennes. Les sites a etaitent choisi par rapport d'une méthode d'échantillonage par liste multi-niveau, et le choix était pondéré vers les terrains forestiers. Les données quantitatives etaitent collecte par rapport d'un système des transects et le volume du bois de chauffage, en steres par kilometer carre, était calcule utlisent une equation de regression multiple. 1.0 INTRODUCTION The results presented in this paper are from work completed at the Resource Inventory and Monitoring (RIM) section of the Forestry and Land Use Planning (FLUP) project. This project is funded under the cooperative agreement #683-0230, between the United States Agency for International Development (USAID) and the government of the Republic of Niger (GON). The primary aim of this bilateral project is to established within the National Forest Service (NFS) of the GON a unit, the Office of Technical Assistance (OTA), capable of furnishing technical information regarding natural resources, for the purposes of planning. The RIM section was established within the structure of the FLUP project in order to: 1) develop and implement resource inventory methods appropriate to the various information needs of the GON, and, 2) train GON forestry personnel in the planning and conduct of such inventories. It is intended that the developed capability of the RIM section, both the procedures instituted and the personnel trained, will become an integral part of the OTA. An essential element of a training program, especially in the field of inventory science, is to identify actual information requirements and use them as practical examples. During the design phase of the FLUP project several basic information needs were identified regarding forestry resources in Niger. One major information lack at the present time is the volume of wood presently available for use by the population for cooking and heating purposes. Without this figure it is very difficult to develop appropriate and coordinated plans for proper management and/or exploitation of the resource. The provision of this information was identified as one of the practical objectives to be addressed by the RIM section. 2.0 IDENTIFICATION OF THE APPROACH USED TO ESTIMATE FUELWOOD VOLUMES IN SELECTED URBAN ZONES 2.1 Context and consideration regarding the approach The approach to the production of fuelwood volume estimates was identified through consideration of: 1) the GON's expressed need to know what volume of fuelwood exists, and where, 2) constraints to the level of effort, 3) the types and amounts of source, or base, data available, 4) previous work completed, and 5) capabilities of the RIM section personnel. The approach designed included the following major elements. An inventory with two phases, the first with the objective of producing a suitable base map showing the distribution of fuelwood related ground conditions, and a second phase to estimate the volume of fuelwood. Both phases rely heavily on the interpretation of remotely sensed data, and statistical sampling and data analysis procedures will be employed. This approach will maximize the efficiency of the mapping and volume estimation procedures, as necessitated by the constraints faced by the RIM section, and will produce valid and comparable volume estimates due to the application of the statistical procedures. 2.2 Selection of the zones to be inventoried Fuelwood volumes were estimated for the five zones shown in Figure 1. These zones are circles, with a radius of 100 kilometers, and have a major urban center at the foci. The 100 kilometer radius was selected for two primary reasons. Within the limits of these zones lives a large majority of the population of Niger. This is where the greatest pressure exists on the fuelwood resource, and where accurate and precise information is essential for

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