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Reports & Research
Décembre 1999

This article presents criteria and recommendations to support the landuse planning process in the savanna land ecosystem of the municipality of Puerto Lopez. These criteria were established from the analysis and correlation of the characteristics of the landscape and soils, taking in…

Journal Articles & Books
Décembre 1999
Journal Articles & Books
Décembre 1999

The effects of land-use change on the structure of Oxisols in the Brazilian savannas (also known as the Cerrados) are still insufficiently understood. We therefore studied loamy and clayey Oxisols under natural savanna, crop, pasture, and reforestation to (1) quantify management-induced changes…

Journal Articles & Books
Décembre 1999

The effect of land use on the availability of soil nitrogen (N) was studied by separating total soil N into one labile and one stable fraction by oxidation and extraction of labile N with potassium permanganate. The nitrogen management index (NMI) was calculated according to Blair et al. (1995)…

Reports & Research
Décembre 1999

The study establishes the link between agricultural labor productivity and natural resources variables at the national level in Honduras. We show through spatial analysis of productivity and natural resources that the relationship between natural resource conditions and agricultural productivity…

Journal Articles & Books
Décembre 1999

In the Brazilian savannas, or Cerrados the rapid advance in agriculture and cattle ranching is affecting soils through, for example, accelerated erosion and depletion of soil organic matter (SOM). Changes in soil microbial biomass are good indicators of changes in SOM. We therefore assessed the…