Aller au contenu principal

page search

Issuesutilisation des terresLandLibrary Resource
There are 9, 839 content items of different types and languages related to utilisation des terres on the Land Portal.
Displaying 2857 - 2868 of 4598

Demographic changes and the demands on agricultural landscapes: Refl ections on a new research topic

Peer-reviewed publication
Décembre, 2008

Demographic change suggests substantial effects on future societal demands on agricultural landscape use and thus on rural areas. Demographic change is thereby defined as both the decrease of the population and the shift in the age distribution („aging“) and in the spatial distribution („rural flight“ particularly of young people).

Sustainable landscape development and value rigidity: the Pirsig‘s monkey trap

Peer-reviewed publication
Mars, 2015

New broader, adaptable and accommodating sets of themes have been proposed to help to identify, understand and solve sustainability problems. However, how this knowledge will foster decisions that lead to more desirable outcomes and analyses necessary to transition to sustainability remains a critical theoretical and empirical question for basic and applied research. We argue that we are still underestimating the tendency to lock into certain patterns that come at the cost of the ability to adjust to new situations.

Estimating the value of a positive change in trout fly-fishing quality in the Rhodes trout fishery, Eastern Cape, South Africa

Peer-reviewed publication
Décembre, 2010
Afrique du Sud
Afrique australe
Afrique

The Rhodes trout fishery, located in the North Eastern Cape, is one of South Africa’s premier fly-fishing destinations. The integrity of the fishery is, however, under threat due to various land-use practices, which could weaken its appeal as a tourist attraction. The aim of this study is to estimate the amount recreational users are willing to pay for a project to improve the trout habitat of waters managed by the Wild Trout Association (WTA) in this fishery in order to improve its fish population density by 100 per cent.

Plant species richness and composition in the arable land of Kosovo

Peer-reviewed publication
Mars, 2009

This study investigates today’s plant species richness and composition in cultivated and recently abandoned
arable land of Kosovo. Relationships between these aspects of vegetation and both environmental features
and agricultural management measures are studied at the regional and plot scale. In 2006, 432 vegetation relevés
with a standard plot size of 25 m² were recorded in cultivated fields. In 2007, data collection focussed on 41 plots
in arable fields that had been abandoned the year before. With respect to the environment, data analysis accounts

I corsi di Economia rurale ed Estimo tenuti nell’Istituto Tecnico Superiore di Milano e l’opera di Arrigo Serpieri nel decennio 1903-1913

Peer-reviewed publication
Juin, 2008

In the ten years 1903-1913 Arrigo Serpieri delivered the lessons of rural economy and evaluation in the Technical Superior Institute of Milano, following his teacher Vittorio Niccoli.

Peninsula Effects on Birds in a Coastal Landscape: Are Coves More Species Rich than Lobes?

Peer-reviewed publication
Octobre, 2012
États-Unis d'Amérique

Peninsula effects - decreasing richness with increasing distance along peninsula lobes - have been identified for
many taxa on large peninsulas. Peninsula effects are caused by differences in colonization and extinction predicted
by island biogeography or by environmental gradients along the peninsula. We compared species-area regressions
for cove patches (i.e., mainland) to regressions for lobe patches (i.e., on peninsula tips) for wet meadow birds
along a highly interdigitated shoreline (northern Lake Huron, USA). We conducted analysis both with and without

Geometric approaches to computing 3D-landscape metrics

Peer-reviewed publication
Décembre, 2010

The relationships between patterns and processes lie at the core of modern landscape ecology. These dependences
can be quantified by using indices related to the patch-corridor-matrix model. This model conceptualizes
landscapes as planar mosaics consisting of discrete patches. On the other hand, relief variability is a key factor for
many ecological processes, and therefore these processes can be better modeled by integrating information concerning
the third dimension of landscapes. This can be done by generating a triangle mesh which approximates

The impact of agricultural extension on farmers’ technical efficiencies in Ethiopia: A stochastic production frontier approach

Peer-reviewed publication
Juin, 2017
Éthiopie

Background: To address the structural food deficit and top down extension system that persisted for decades, the government of Ethiopia has introduced a new extension system, called Participatory Demonstration and Training Extension Systems, which serves more than 80% of the total population. As the program was streamlined to fit the different agro-climatic condition of the country, the extension approach practiced in the Tigray region (research area) was called Integrated Household Extension Program.

High-tech industries' overseas investment performance evaluation - Application of data envelopment analysis

Peer-reviewed publication
Décembre, 2013
Chine

With the rapid change of the social environment, Mainland China has become a new economic market due to the great domestic demand caused by its enormous population and the increasing economic growth rate. Taiwanese businesses have gradually turned to develop in China under the pressure of increasing domestic wages and land costs for expanding factories as well as the enhancement of environmental protection.

Greenweb and the landscape. A WebGIS –DRSA valuation pattern for the programs of slow viability in Syracuse Province

Peer-reviewed publication
Janvier, 2016

The territory of Syracuse is composed of different important natural, cultural and anthropic landscape complexes. As a whole, the territory is affected by an inhomogeneous development pattern, mostly oriented to the waterfront. A greenways land policy based on an effective land marketing pattern might reduce this gap. The study assumes an axiological approach to land planning, combining a qualitative valuation model based on a WebGIS-MAVT tool, and an interactive multicriteria tool based on and a DRSA pattern.

Micro-enterprise predicament in township economic development: Evidence from Ivory Park and Tembisa

Peer-reviewed publication
Mai, 2017
Afrique du Sud
Afrique australe

Background: In South Africa, the idea that the township economy needs to be ‘revitalised’ has begun to gain significant political traction. The Gauteng provincial government has responded to this challenge by setting out a strategy that promises to channel resources and create opportunities for micro-enterprises. The paper responds to development interventions such as this through interrogating the nature of the challenges facing micro-enterprises that need to be overcome in South African townships.

Effects of topography and surface roughness in analyses of landscape structure –

Peer-reviewed publication
Février, 2008

Topography and relief variability play a key role in ecosystem functioning and structuring. However, the most commonly used concept to relate pattern to process in landscape ecology, the so-called patch-corridor-matrix model, perceives the landscape as a planimetric surface. As a consequence, landscape metrics, used as numerical descriptors of the spatial arrangement of landscape mosaics, generally do not allow for the examination of terrain characteristics and may even produce erroneous results, especially in mountainous areas.