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Elsevier Resources

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Library Resource

Quantitative assessment of resource-use efficient cropping systems: a case study for Ansai in the Loess Plateau of China

Artigos e Livros

Dezembro, 2003

China

Severe soil erosion and food security problems are the most important issues in the Loess Plateau of northern China, which are closely related to the over-cultivation and poor management of marginal land resources. Alleviation of these unsustainability problems requires, among many other things, alternative and innovative cropping systems. This paper describes the identification of such cropping systems and their quantitative evaluation.

Library Resource

Crop residue and fertiliser N effects on nitrogen fixation and yields of legume–cereal rotations and soil organic fertility

Artigos e Livros

Dezembro, 2003

Paquistão

Improved management of nitrogen (N) in low N soils is critical for increased land productivity and economic sustainability. We report results of a rainfed rotation experiment, conducted in the Northwest Frontier Province (NWFP), Pakistan, during 1995-1999 to evaluate effects of residue retention and fertiliser N on N2 fixation inputs and yields of a mungbean (Vigna radiata)-wheat (Triticum aestivum) sequence, and a lentil (Lens culinaris)-summer cereal sequence. Mungbean and sorghum (Sorghum bicolor) or maize (Zea mays) were grown in the summers and lentil and wheat in the winters.

Library Resource

Evolution of land tenure institutions and development of agroforestry: evidence from customary land areas of Sumatra

Publicação revisada por pares

Artigos e Livros

Dezembro, 2001

It is widely believed that land tenure insecurity under a customary tenure system leads to a socially inefficient resource allocation. This article demonstrates that the practice of granting secure individual ownership to tree planters spurs earlier tree planting, which is inefficient from the private point of view but could be efficient from the viewpoint of the global environment. Regression analysis, based on primary data collected in Sumatra, indicates that an expected increase in tenure security in fact led to early tree planting.

Library Resource

The effect of existing land tenure systems on urban land development: A case study of Kenya's secondary towns, with emphasis on Kisumu

Artigos e Livros

Dezembro, 1988

Quênia

The Kenya Government has over a number of years pursued policies geared towards the promotion of secondary towns. Included in this strategy is the achievement of an orderly and coordinated urban land development. However, experience from these towns indicates that, planned land development has encountered a lot of bottlenecks particularly in relation to the institution of private ownership of land. This paper traces the land tenure systems that have existed in the Kenya’s secondary towns.

Library Resource

Emerging conflict in collaborative mapping: Towards a deeper understanding?

Artigos e Livros

In spatial planning and environmental management, maps are found very helpful in many situations, but in other situations they may also deepen conflicts or be ignored. This paper addresses the question what explains such phenomena, with particular emphasis on, and reference to, collaborative policymaking settings in the Netherlands. We have elaborated the concept of ‘frames’ and ‘framing’ to structure and analyze the function of maps in the context of deliberative policymaking.

Elsevier Resources

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