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There are 1, 166 content items of different types and languages related to système d'information géographique on the Land Portal.
Displaying 13 - 24 of 367

Logging, Mining, And Agricultural Concessions Data Transparency: A Survey Of 14 Forested Countries

Reports & Research
Février, 2017
Brésil
Cambodge
Canada
Colombie
République démocratique du Congo
Indonésie
Libéria
Madagascar
Malaisie
Mexique
Myanmar
Papouasie-Nouvelle-Guinée
Pérou
Fédération de Russie

Global demand for timber, agricultural commodities, and extractives is a significant driver of deforestation worldwide. Transparent land-concessions data for these large-scale commercial activities are essential to understand drivers of forest loss, monitor environmental impacts of ongoing activities, and ensure efficient and sustainable allocation of land.

Landscape Epidemiology Modeling Using an Agent-Based Model and a Geographic Information System

Peer-reviewed publication
Juin, 2015

A landscape epidemiology modeling framework is presented which integrates the simulation outputs from an established spatial agent-based model (ABM) of malaria with a geographic information system (GIS). For a study area in Kenya, five landscape scenarios are constructed with varying coverage levels of two mosquito-control interventions. For each scenario, maps are presented to show the average distributions of three output indices obtained from the results of 750 simulation runs. Hot spot analysis is performed to detect statistically significant hot spots and cold spots.

Multi-Criteria Assessment of Land Cover Dynamic Changes in Halgurd Sakran National Park (HSNP), Kurdistan Region of Iraq, Using Remote Sensing and GIS

Peer-reviewed publication
Mars, 2017

Halgurd Sakran National Park (HSNP) is Iraq’s first designated national park, located in the Kurdistan Region, which has suffered multiple armed conflicts over the past decades. This study assesses how vegetation dynamics have affected the landscape structure and composition of the core zone of the park over the last 31 years. Spatio-temporal changes in land cover were mapped for three points in time using remote sensing, geographic information systems (GIS), and landscape metrics.

High-Precision Land-Cover-Land-Use GIS Mapping and Land Availability and Suitability Analysis for Grass Biomass Production in the Aroostook River Valley, Maine, USA

Peer-reviewed publication
Mars, 2015

High-precision land-cover-land-use GIS mapping was performed in four major townships in Maine’s Aroostook River Valley, using on-screen digitization and direct interpretation of very high spatial resolution satellite multispectral imagery (15–60 cm) and high spatial resolution LiDAR data (2 m) and the field mapping method. The project not only provides the first-ever high-precision land-use maps for northern Maine, but it also yields accurate hectarage estimates of different land-use types, in particular grassland, defined as fallow land, pasture, and hay field.

Detection of Shoreline and Land Cover Changes around Rosetta Promontory, Egypt, Based on Remote Sensing Analysis

Peer-reviewed publication
Mars, 2015

Rosetta Promontory, Egypt has been suffering from a continuous erosion problem. The dramatic retreatment was observed during the last century. It is basically due to the construction of Aswan High Dam in 1964, which reduced the flow and sediment discharges. In this paper, four Landsat images (two Thematic Mapper and two Enhanced Thematic Mapper) covering the period from 1984 to 2014 were used.

Mapping Urbanization Dynamics in Major Cities of Colombia, Ecuador, Perú, and Bolivia Using Night-Time Satellite Imagery

Peer-reviewed publication
Mars, 2013
Équateur
Bolivie
Colombie
Pérou

By 2050, 90% of the population in Latin America will live in cities, but there is a lack of up-to-date spatial information about the urban extent and patterns of urbanization in cities of this region. In this study, we analyzed population growth, urban density and urbanization dynamics between 1992 and 2009 in the major cities of Bolivia, Colombia, Ecuador and Perú using Google Earth and DMSP/OLS night-time lights imagery. We used Google Earth to map the urban extent, and time series of night-time lights to analyze spatial patterns of urban development.

Linking Land Cover Data and Crop Yields for Mapping and Assessment of Pollination Services in Europe

Peer-reviewed publication
Septembre, 2013

Pollination is a key ecosystem service as many crops but in particular, fruits and vegetables are partially dependent on pollinating insects to produce food for human consumption. Here we assessed how pollination services are delivered at the European scale. We used this assessment to estimate the relative contribution of wild pollinators to crop production. We developed an index of relative pollination potential, which is defined as the relative potential or relative capacity of ecosystems to support crop pollination.

Historical and Contemporary Geographic Data Reveal Complex Spatial and Temporal Responses of Vegetation to Climate and Land Stewardship

Peer-reviewed publication
Juin, 2013

Vegetation and land-cover changes are not always directional but follow complex trajectories over space and time, driven by changing anthropogenic and abiotic conditions. We present a multi-observational approach to land-change analysis that addresses the complex geographic and temporal variability of vegetation changes related to climate and land use.

Pilot Project to establish a Pro-Poor Land Information Management System (LIMS) for part of Thika Municipality

Journal Articles & Books
Reports & Research
Mai, 2012
Kenya

According to 2001 statistics, 924 million people, almost one third of the world’s population lived in slums. A majority of these people are in the developing countries and they account for 43% of the urban population. Slums are characterized by a dense proliferation of small, makeshift shelters built from diverse materials, degradation of the local ecosystem and by severe social problems.

Handbook on Land Laws

Legislation & Policies
Legislation
National Policies
Février, 2015
Kenya

The Land Act, 2012

The Land Registration Act, 2012

The National Land Commission Act, 2012

The Environment & Land Court Act, 2011

The Urban Areas & Cities Act, 2011

LDGI Survey

Journal Articles & Books
Reports & Research
Janvier, 2016
Kenya

Public land is a resource that should be effectively managed in the public’s best interest in line with provisions of the Constitutions of Kenya and the Land Act. The management framework governing land use and development decisions on public land should ensure protection and sustainable management of the land. Despite these provisions in law, recent media reports point toresurgenceof public land grab. The Land Development and Governance Institute commissioned this research study to establish the status of the public land management in Kenya.