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Issuesutilisation des terresLandLibrary Resource
There are 9, 809 content items of different types and languages related to utilisation des terres on the Land Portal.
Displaying 1981 - 1992 of 4598

Geological and geomorphological controls on groundwater occurrence in a hard rock region

Journal Articles & Books
Décembre, 2016

Remote sensing and GIS tools have broadly helped hydrogeologists to delineate the groundwater prospective zones for watershed development and management. The origin, movement and existence of groundwater depends on several factors such as slope, drainage density, land use, geology, lineament density and geomorphology. Based on these, the mapping and identification of groundwater potential zones were carried out in a part of Nalgonda district, Telangana, India.

Global food demand and the sustainable intensification of agriculture

Journal Articles & Books
Décembre, 2011

Global food demand is increasing rapidly, as are the environmental impacts of agricultural expansion. Here, we project global demand for crop production in 2050 and evaluate the environmental impacts of alternative ways that this demand might be met. We find that per capita demand for crops, when measured as caloric or protein content of all crops combined, has been a similarly increasing function of per capita real income since 1960. This relationship forecasts a 100–110% increase in global crop demand from 2005 to 2050.

Grain legume impacts on soil biological processes in Sub-Saharan Africa

Journal Articles & Books
Décembre, 2011
Afrique sub-saharienne
Afrique

Grain legumes occupy about 20 million hectares in Africa. The major crops are cowpea (Vigna unguiculata L.), which is grown on about 11 million hectares mostly in West Africa, and common bean (Phaseolus vulgaris L.), grown on about 5 million hectares mostly in eastern and southern Africa. These grain legumes have impacted soil organisms, including nitrogen fixers, mycorrhizae, fauna, and the processes that they perform. The legume-Rhizobiumsymbiosis results in dinitrogen (N2) fixation that adds plant-available nitrogen to the soil system.

Hutan kita, keputusan kita: sebuah survei mengenai prinsip-prinsip untuk pengambilan keputusan di Malinau

Journal Articles & Books
Décembre, 2006
Indonésie

Many people want to improve the governance of forest areas, yet what is considered good governance is not necessarily self-evident or agreed upon by everyone. This study demonstrates the diversity of views held by communities and government officials in Malinau, Indonesian Borneo about what they consider to be good governance. Each group described how they thought decisions about forests should be made, including how to represent interests, allocate land rights, distribute cash benefits from forests, share information and manage forests.

Impact of land use on the distribution and diversity of entomopathogenic nematodes in embu and taita districts, kenya

Journal Articles & Books
Décembre, 2011
Kenya
Afrique
Afrique orientale

Natural entomopathogenic nematodes (EPNs) are considered as potential biological control agents against soil-borne insect pests. This study was conducted to determine the impact of land use on the distribution, occurrence and diversity of entomopathogenic nematode community. Isolation of EPNs was done using the baiting technique and application of morphological identification methods revealed presence of the genus Steinernema. Land use intensification negatively affected the occurrence and recovery frequency in soils of Embu and Taita districts.

Implikasi perubahan kebijakan otonomi daerah terhadap beberapa aspek di sektor kehutanan: studi kasus di kabupaten Luwu utara, Sulawesi selatan

Journal Articles & Books
Décembre, 2007
Indonésie

This report is based on a case study looking at the change in decentralization laws from the highly decentralized system under 22/1999 to a moderate system under 32/2004. It specifically analyses the implications of such change for local-level forest decision making processes related to forestry, spatial planning, shared revenues and village-level institutions in Luwu Utara district, South Sulawesi province. The research is a continuation of previous ACIAR/CIFOR collaborative research under the theme “Can Decentralization Work for Forests and the Poor?”.

Land use and agricultural change dynamics in SAT watersheds of southern India

Journal Articles & Books
Décembre, 2016
Inde

Impact of dynamic land use and land cover changes on the livelihood of local communities and ecosystem services is a major concern. This is particularly evident in most dryland agricultural systems in South Asia. We study land use/land cover (LULC) changes over the last two decades in a watershed (9589 ha) located in semi-arid eco-region in South India (Anantapuram district) using Landsat and IRS imagery. We captured additional data through field observations and focused group discussions.

Land use systems and distribution of Trichoderma species in Embu region, Kenya = Relación entre uso del suelo y la distribución de Trichoderma en la región de Embu, Kenia

Journal Articles & Books
Décembre, 2007
Kenya
Afrique orientale

The distribution of Trichoderma species in soils of Embu region in relation to land use practices was investigated. The study area was chosen because of its significant land use intensification. Soil washing and dilution plate techniques were used to recover Trichoderma spp from soil samples. The fungal isolates were identified and assigned to eight species. Greater populations as well as a wider range of species were obtained in soils collected from the natural forests while coffee farms were the poorest ones. Land use affected the distribution of Trichoderma.

Land-use change modelling in the Upper Blue Nile Basin

Journal Articles & Books
Décembre, 2016

Land-use and land-cover changes are driving unprecedented changes in ecosystems and environmental processes at different scales. This study was aimed at identifying the potential land-use drivers in the Jedeb catchment of the Abbay basin by combining statistical analysis, field investigation and remote sensing. To do so, a land-use change model was calibrated and evaluated using the SITE (SImulation of Terrestrial Environment) modelling framework.