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There are 2, 543 content items of different types and languages related to système d'exploitation agricole on the Land Portal.
Displaying 1117 - 1128 of 1717

Cultural ecosystem services of mountain regions: Modelling the aesthetic value

Journal Articles & Books
Décembre, 2016
Autriche
Italie

Mountain regions meet an increasing demand for pleasant landscapes, offering many cultural ecosystem services to both their residents and tourists. As a result of global change, land managers and policy makers are faced with changes to this landscape and need efficient evaluation techniques to assess cultural ecosystem services. This study provides a spatially explicit modelling approach to estimating aesthetic landscape values by relating spatial landscape patterns to human perceptions via a photo-based survey.

Farming systems in two less favoured areas in portugal: their development from 1989 to 2009 and the implications for sustainable land management

Journal Articles & Books
Décembre, 2014
Portugal
Europe

Since the late 1980s, sustainable land management is one of the objectives of the European Commission in Less Favoured Areas. In this paper, we investigate the economic and environmental sustainability of farming systems in two less favoured areas in Centro and Alentejo areas of Portugal. The specific objectives were the following: (i) to characterise the farming systems; (ii) to analyse their development over a 20‐year period (1989–2009); and (iii) to investigate to what extent these farming systems contribute to sustainable land management.

Maize in North Veracruz State, Mexico: Farmer practice and research opportunities

Journal Articles & Books
Décembre, 1982
Mexique

This report exemplifies the short, well-focuses formal survey emphasized in CIMMYT's on-farm research procedures. The survey was done in northern Veracruz, Mexico, where CIMMYT Maize Production Training carries out on-farm experiments. The report summarizes farmers' circumstances, describes management practices in maize, and draws conclusions for research opportunities.

No-tillage farming, soil fertility and maize root growth

Journal Articles & Books
Décembre, 2012

Sustainable land management involves preservation of soil properties associated with soil quality and fertility. Conservation or no-tillage farming by retaining crop residues after harvesting can considerably contribute to soil fertility and crop productivity. The objective of this study is to evaluate and compare effects of two agricultural practices, conventional using mouldboard ploughing (CP) and no-tillage (NT), on soil fertility and on root growth of maize. The study is conducted on two adjoined fields on Chernozem in Eastern Austria.

Failure of black cohosh (Actaea racemosa L.) rhizome transplants: potential causes and forest farming implications

Journal Articles & Books
Décembre, 2014

Black cohosh (Actaea racemosa L.) rhizomes are harvested extensively from eastern North American forests and sold worldwide for treatment of menopausal symptoms. While forest farming is encouraged to reduce wild-harvest impacts, little information is available to aid landowners in successfully cultivating black cohosh. This study examined survival and multi-year growth of 200 black cohosh rhizomes collected from an Appalachian deciduous forest and transplanted to a similar forest type.

Simple Approaches to Improve Restoration of Coastal Sage Scrub Habitat in Southern California

Journal Articles & Books
Décembre, 2016

Much of the coastal sage scrub habitat in Southern California that existed prior to European settlement has been developed for human uses. Over the past two to three decades, public agencies and land conservation organizations have worked to acquire some of the remaining lands for preservation. Many of these lands are degraded by past intensive livestock grazing, farming, and frequent fires, and the native flora has been replaced by weedy, exotic annual grasses and forbs, mostly of Mediterranean origin.

Drought vulnerability drives land-use and land cover changes in the Rift Valley dry lands of Ethiopia

Journal Articles & Books
Décembre, 2013
Éthiopie

The Ethiopian Rift Valley is a dry land zone where for a long time pastoral communities have made their living from acacia-based woodlands. But many pastoralists have changed from a pastoral way of life to mixed farming over time. The aim of this study was to evaluate land-use and land cover (LULC) changes in the Central Rift Valley dry lands of Ethiopia, and determine the role of drought vulnerability as a driver. A combination of GIS/remote sensing techniques, drought vulnerability analyses, field observation and surveying were employed.

Adoption and intensity of integrated pest management (IPM) vegetable farming in Bangladesh: an approach to sustainable agricultural development

Journal Articles & Books
Décembre, 2015
Bangladesh

The common use of pesticide is a major challenge in trying to accomplish sustainable agriculture. Farming systems based on integrated pest management (IPM) technologies can reduce the use of pesticides to a great extent without causing harm to the yield. Therefore, Bangladesh, like many developing countries, launched IPM technologies to reduce the adverse effects of pesticides in social, economic and environmental aspects. This study made an attempt to analyze the level of IPM adoption and the intensity of IPM practices by vegetable farmers of Narsingdi district, Bangladesh.

Is Oregon's land use planning program conserving forest and farm land? A review of the evidence

Journal Articles & Books
Décembre, 2011

Planners have long been interested in understanding ways in which land use planning approaches play out on the ground and planning scholars have approached the task of evaluating such effects using a variety of methods. Oregon, in particular, has been the focus of numerous studies owing to its early-adopted and widely recognized statewide approach to farm and forest land protection and recent experiment with relaxation of that approach in 2004 with the passage of ballot Measure 37.

characterization of the drivers, pressures, ecosystem functions and services of Namatala wetland, Uganda

Journal Articles & Books
Décembre, 2013
Ouganda

Namatala wetland near the town of Mbale in the Eastern region of Uganda is a papyrus wetland that is subject to conversion for agriculture (mainly rice farming) and pollution by wastewater. The main goal of this study was to analyze the ecosystem functions and services of Namatala wetland and their drivers of change, and to suggest directions for sustainable use. Data on climate, hydrology, water quality, population and land use were collected. Stakeholder workshops were organized at national and local levels to identify stakeholder interests in the wetland and conflicts.

Rice farming sustainability assessment in Bangladesh

Journal Articles & Books
Décembre, 2014
Bangladesh

Farming sustainability is primordial to long-term socioeconomic development. This study assesses rice farming sustainability in Bangladesh by developing a composite indicator (CI) under the four pillars of sustainability and examines the main determining factors. The assemblage of top-down and bottom-up approaches were applied to generate an essential set of indicators and data were collected through a household survey from 15 villages of three major rice growing ecosystems.