Overslaan en naar de inhoud gaan

page search

Displaying 829 - 840 of 2295

Quantifying nutrient transfer pathways in agricultural catchments using high temporal resolution data

Journal Articles & Books
december, 2012

There are uncertainties in the definition of phosphorus (P) and nitrogen (N) transfer pathways within agricultural river catchments due to spatiotemporal variations such as water recharge and the farming calendar, or catchment soil and hydrogeological properties. This can have implications for mitigation policies. This study combined detailed pathway studies with catchment integrated studies to characterise N and P transfer pathways for four agricultural catchments with different land management, soil drainage and geology.

Livestock in the rice-based economy of Office du Niger: The development potential for increased crop–livestock integration through multi-actor processes

Journal Articles & Books
december, 2012
Mali
Niger

A diagnostic study of the development potential of livestock for the rice-based economy of the Office du Niger (ON) was conducted in Mali. The functioning of selected farming systems and value chains were studied by means of interviews, surveys and farmer group discussions. The findings show that in the ON rice remains the prime agricultural activity; although half of the farm households own cattle (for capital insurance and draught power), livestock management is troublesome because of a lack of grazing land and water points.

Farmers’ Visions on Soils: A Case Study among Agroecological and Conventional Smallholders in Minas Gerais, Brazil

Journal Articles & Books
december, 2012
Brazil

Purpose: Why do farmers not take better care of their soils? This article aims to give insight into how farmers look at soil quality management. Design/methodology/approach: It analyses diverse land management practices and visions on soils and soil quality of ten agroecological and 14 conventional smallholder farmers in Araponga, Minas Gerais, Brazil. As agroecological farming (that is, managing soils with minimum use of external inputs) requires more complex knowledge, it is assumed that agroecological farmers would be more knowledgeable on soils compared to conventional farmers.

method for assessing work productivity and flexibility in livestock farms

Journal Articles & Books
december, 2012
France

Changes affecting livestock farming systems have made farm work a central concern for both the sector and for farmers themselves. Increased pressure on farms to be competitive and productive together with farmers’ demand for greater autonomy, holidays or time to spend on private activities and the family converge to underline the two key dimensions of work – productivity and flexibility – required for the assessment of work organization.

Land, landlords and sustainable livelihoods: The impact of agrarian reform on a coconut hacienda in the Philippines

Journal Articles & Books
december, 2012
Philippines

Agrarian reform has been a key theme on the development agenda of many countries in the Global South for decades. Whilst such interventions are often pursued for political goals and in the interests of empowerment, there is often a mismatch between these goals and the actual outcomes achieved. Within this context, this study investigates the impacts of agrarian reform in Del Rosario, a former coconut hacienda in the Philippines.

Traditional forest knowledge of the Yi people confronting policy reform and social changes in Yunnan province of China

Journal Articles & Books
december, 2012
China

The Yi minority group has a long history, and their livelihoods and culture exist in complex, holistic interrelationship with forests. This paper aims to document the dynamic, traditional forest knowledge (TFK) of the Yi, including: forest categorization methods; routine forest utilization; land tenure and use-right arrangements; benefit-sharing mechanisms; customary regulations; and forest-related beliefs. Our analysis is based on rapid investigations conducted in two dozen Yi ‘natural villages’ and in-depth studies of three Yi natural villages in Nanhua County, Yunnan.

role of grasslands in food security and climate change

Journal Articles & Books
december, 2012

BackgroundGrasslands are a major part of the global ecosystem, covering 37 % of the earth's terrestrial area. For a variety of reasons, mostly related to overgrazing and the resulting problems of soil erosion and weed encroachment, many of the world's natural grasslands are in poor condition and showing signs of degradation. This review examines their contribution to global food supply and to combating climate change.ScopeGrasslands make a significant contribution to food security through providing part of the feed requirements of ruminants used for meat and milk production.

Valuing local knowledge as a source of expert data: Farmer engagement and the design of decision support systems

Journal Articles & Books
december, 2012

Engagement with farmers and landowners is often undertaken by the research community to obtain information relating to typical land, livestock and enterprise management and generally centres on responses to questionnaire surveys. Farmers and land managers are constituted as expert observers of ground-level processes and provide diverse information on farming practices, enterprise economics and underpinning attitudes towards risk.

Economic Explanation for Privatization of Forests and Forestland: Canada and the United States

Journal Articles & Books
december, 2012
Canada
United States of America

SUMMARYThis paper analyses the differences between forestland tenure systems in Canada and the US. Evolution of the two systems is primarily explained by variation of scarcity and land productivity. In early colonial times, Canada's economy was tightly linked to the fur trade with Indian people, while New England's economy was based more on agriculture with more intensive land use.

Shieling Areas: Historical Grazing Pressures and Landscape Responses in Northern Iceland

Journal Articles & Books
december, 2012
Iceland

Historical domestic livestock grazing in sensitive landscapes has commonly been regarded as a major cause of land degradation in Iceland. Shieling areas, where milking livestock were taken to pasture for the summer, represented one element of grazing management and in this paper we consider the extent to which historical shieling-based grazing pressure contributed to land degradation.

No-tillage farming, soil fertility and maize root growth

Journal Articles & Books
december, 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.