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Book Chapter 1999

Autor: Renz, TE Neufeldt, Henry Ayarza, Miguel Angel Resck, DVS Zech, W.

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 e...

Enlace original: https://cgspace.cgiar.org/handle/10568/55138

Investigación en Agricultura
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Renz, TE ,  Neufeldt, Henry ,  Ayarza, Miguel Angel ,  Resck, DVS ,  Zech, W. ,  [Microbial biomass, microbial activity, and carbon pools under different land-use systems in the Brazilian cerrados] ,  Microbial biomass, microbial activity, and carbon pools under different land-use systems in the Brazilian cerrados
Book Chapter 1999

Autor: Lopes, A Ayarza, Miguel Angel Thomas, Richard J.
Enlace original: https://cgspace.cgiar.org/handle/10568/55106

Investigación en Agricultura
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Lopes, A ,  Ayarza, Miguel Angel ,  Thomas, Richard J. ,  [Sistemas agropastoriles en las sabanas de América Tropical: lecciones del desarrollo agrícola de los Cerrados de Brasil] ,  Sistemas agropastoriles en las sabanas de América Tropical: lecciones del desarrollo agrícola de los Cerrados de Brasil
Book Chapter 1999

Autor: Freibauer, A. Westerhof, R Ayarza, Miguel Angel Silva, J.E. da Zech, W.

Short-term changes in soil aggregation, total and particulate organic C and N were studied in cropping and pasture systems of the Brazilian savannas, also known as the Cerrados. Furthermore, the concepts of a hierarchical aggregate structure and of the interaction of soil structure with particula...

Enlace original: https://cgspace.cgiar.org/handle/10568/55129

Investigación en Agricultura
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Freibauer, A. ,  Westerhof, R ,  Ayarza, Miguel Angel ,  Silva, J.E. da ,  Zech, W. ,  [Short-term variation in aggregation and particulate organic matter under crops and pastures] ,  Short-term variation in aggregation and particulate organic matter under crops and pastures
Book Chapter 1999

Autor: Lilienfein, J Wilcke, W. Neufeldt, Henry Ayarza, Miguel Angel Zech, W.

This study assessed the influence of land use (continuous cropping, CC; tree plantations, F; pasture, PG; and native savanna, NS) on P concentrations and partitioning in bulk soil and two aggregate size fractions of two Oxisols, one loamy and one clayey. The quantity and quality of physically pro...

Enlace original: https://cgspace.cgiar.org/handle/10568/55136

Investigación en Agricultura
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Lilienfein, J ,  Wilcke, W. ,  Neufeldt, Henry ,  Ayarza, Miguel Angel ,  Zech, W. ,  [Phosphorus pools in bulk soil and aggregates of differently textured oxisols under different land-use systems in the Brazilian cerrados] ,  Phosphorus pools in bulk soil and aggregates of differently textured oxisols under different land-use systems in the Brazilian cerrados
Book Chapter 1999

Autor: Neufeldt, Henry Resck, DVS Ayarza, Miguel Angel Zech, W.

Little is known about the sustainability of cultivation systems in the Brazilian savannas, also known as the Cerrados, despite its increasing significance for that country`s agriculture. To characterize management effects and follow alterations of organic compounds in different fractions, we stud...

Enlace original: https://cgspace.cgiar.org/handle/10568/55130

Investigación en Agricultura
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Neufeldt, Henry ,  Resck, DVS ,  Ayarza, Miguel Angel ,  Zech, W. ,  [Soil organic matter in oxisols of the Brazilian cerrados] ,  Soil organic matter in oxisols of the Brazilian cerrados
Book Chapter 1999

Autor: Neufeldt, Henry Ayarza, Miguel Angel Resck, DVS Zech, W.

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 i...

Enlace original: https://cgspace.cgiar.org/handle/10568/55127

Investigación en Agricultura
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Neufeldt, Henry ,  Ayarza, Miguel Angel ,  Resck, DVS ,  Zech, W. ,  [Distribution of water-stable aggregates and aggregating agents in oxisols of the Brazilian cerrados] ,  Distribution of water-stable aggregates and aggregating agents in oxisols of the Brazilian cerrados
Book Chapter 2001

Autor: Jiménez Jaén, J.J. Decaëns, Thibaud Thomas, Richard J. Lavelle, Patrick M.
Enlace original: https://cgspace.cgiar.org/handle/10568/55166

Investigación en Agricultura
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Jiménez Jaén, J.J. ,  Decaëns, Thibaud ,  Thomas, Richard J. ,  Lavelle, Patrick M. ,  [Soil macrofauna: an available but little-known natural resources] ,  Soil macrofauna: an available but little-known natural resources
Book Chapter 2001

Autor: Decaëns, Thibaud Lavelle, Patrick M. Jiménez Jaén, J.J. Escobar, G. Rippstein, G Schneidmadl, J Sanz Scovino, José Ignacio Hoyos, P. Thomas, Richard J.

The effects of different types of land management on the soil macroinvertebrate communities on acid soil savannas of Colombia have been assessed using the Tropical Soil Biology and Fertility Program (TSBF) methodology. Invertebrates were identified among broad taxonomic units, TU (Orders or Famil...

Enlace original: https://cgspace.cgiar.org/handle/10568/55167

Investigación en Agricultura
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Decaëns, Thibaud ,  Lavelle, Patrick M. ,  Jiménez Jaén, J.J. ,  Escobar, G. ,  Rippstein, G ,  Schneidmadl, J ,  Sanz Scovino, José Ignacio ,  Hoyos, P. ,  Thomas, Richard J. ,  [Impact of land management on soil macrofauna in the Eastern plains of Colombia] ,  Impact of land management on soil macrofauna in the Eastern plains of Colombia
Book Chapter 2001

Autor: Jiménez Jaén, J.J. Moreno, Alonso Lavelle, Patrick M. Decaëns, Thibaud

Martiodrilus carimaguensis (Oligochaeta, Glossoscolecidae) is a large, anecic native earthworm species which was found in natural and disturbed savannas in the Oxisols of the Colombian Llanos. The population dynamics of this species were studied in a native savanna, and in a 17-year-old grazed gr...

Enlace original: https://cgspace.cgiar.org/handle/10568/55170

Investigación en Agricultura
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Jiménez Jaén, J.J. ,  Moreno, Alonso ,  Lavelle, Patrick M. ,  Decaëns, Thibaud ,  [Population dynamics and adaptive strategies of Martiodrilus carimaguensis (oligochaeta, glossoscolecidae), a native species from the well-drained savannas of Colombia] ,  Population dynamics and adaptive strategies of Martiodrilus carimaguensis (oligochaeta, glossoscolecidae), a native species from the well-drained savannas of Colombia

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