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:: 856641294

Title:: Remote sensing for resources development and environmental management

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

Scope:: IX Seiten, Seiten 551-956

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A,. A. Balkema

Identifier (digital):: 856641294

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,2)

Language:: English

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

Editor:: Damen, M. C. J.

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

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:: 8 Geo-information systems. Chairman: J. J. Nossin

Write comment:: Wegen zu enger Bindung kommt es teilweise im Original zu Textverlust.

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: Recording resources in rural areas. Richard K. Bullard

Document type:: Multivolume work

Structure type:: Chapter

■■■na Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 Recording resources in rural areas Richard K.Bullard The National Remote Sensing Centre, Chelmsford, Essex, UK ABSTRACT: In the developed and the developing countries of the world, land in rural areas is under continuing pressure. Many of the European countries are attempting to replace the traditional and existing cadastre with a Multi-Purpose Cadastre (MPC) in an attempt to more adequately record resources. With the advent of the improved resolution of satellite imagery (2nd and 3rd. generation) the possibility of recording many of the resources required for a MPC in rural areas will be considered as well as with more conventional imagery. Many of the parcels of land in Europe are uneconomic and the need for reapportionment has become a major activity of the land surveyor. This paper will consider the applications of satellite imagery and aerial photography in conjunction with the cadastre to determine the resources of individual parcels of land in rural areas with a view to their improvement and future land use. 1 INTRODUCTION Rural land has traditionally been under pressure, ever since man has changed his life style from a nomad to a pasturalist, and with his subsequent settlement into communities. The village became the nucleus for the future urban area. In the context of this paper rural refers to that part of a country, particularly in Europe, which has a 'low' population density and is largely given over to agriculture, forestry, national parks, wilderness and mountainous areas. Urban refers to that part of the country which has a 'high' population density and is given over to housing, industry, transportation, service centres, energy plants, termini, etc. The 'low' and 'high' densities must be considered as variables in each country, for example, in countries with large population densities the respective density figures will be more than in countries with less population density Resources in the context of this paper refers to the items that will be recorded and listed in a multi purpose cadastre, that is those factors which have a direct bearing on land. To be able to record resources in rural areas it will be necessary to relate them to a spatial dimension. In those parts of Europe that have a numerical cadastre the spatial dimension can be related to the parcel boundaries and this provides a density of control which fits well into the multi-purpose cadastre. In countries that do not have defined cadastral boundaries the need for densification of national control will have to be undertaken. Many of the land parcels in Europe are uneconomic and in an attempt to consolidate and re-apportion them into economic units there will be a need to establish the resources that they contain. The advent of the Digital Terrain Model (DTM) enables the resources of the land parcel to be considered in three-dimensions and such variable factors as aspect, and sun's elevation may be taken into account when changes are proposed into new property boundaries. 2 PRESSURE ON RURAL LAND As described in the introduction, rural land is that land which is less densly populated and is presently used for agriculture etc. In most countries the rural region forms the largest area which in developing countries often contains the largest percentage of the population. In developed countries the rural region usually contains the smallest percentage of the total population. 2.1 Population movement and increase Even though there is a movement of population in rural areas into the major urban areas, more so in developing countries, there is a reverse move from urban to rural areas now occuring in developed countries. It could follow that there is more outward pressure in developed countries. However, the developing countries have the additional problem of population growth, sometimes excessive, and although the movement here is presently towards urban areas the total numbers are still on the increase in rural areas. 2.2 Food production and agriculture The need to increase the production of food in rural areas for an increasing population, largely occuring in developing countries, puts additional pressure on rural land. With some of the agricultural techniques adapted in devloping countries there is a trend for diminishing return per unit area and in certain circumstances no return at all. Examples are the short term benefits of clearing tropical forests for agriculture, often after only 2 years the land is no longer useable, This cleared land will not revert back to forest because the thin top soil has been eroded and only poor secondary growth will occur. 2.3 Forestry The increasing demand for timber, both for energy and for manufacturing paper and wooden objects has involved more land being allocated to forestry. In Europe forests where not already established are planted on poorer soils, in developing countries forests are being indiscriminately cleared putting more pressure on remaining forests in rural areas. 2.4 Housing Vith expanding populations in developing countries increasing amounts of land are allocated to housing. Some of the housing will be built by squatters and even when these people are moved away the sites remain derelict until clearance takes place. 913

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