Soils

Forests, atmospheric water and an uncertain future: the new biology of the global water cycle

Introduction 

This article provides a review of the connection between vegetation cover and climate, with a specifical focus on forests and rain. The author details how there are shortcomings in knowledge concerning how tree cover influences water-cycles, which are both highly complex and important. In order to direct readers to potential research opportunities in this field, the article highIights advances and uncertainties in this field through reviewing it's major research themes. 

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Módulo 2: Selección y establecimiento de estrategias y prácticas de restauración

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Antecedentes

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Restauración ecológica en un clima cambiante: ¿Es imprescindible un cambio de modelo?

 

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Antecedentes

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Insectos vs suelo: la importancia de elegir indicadores para el monitoreo de la restauración ecológica.

 

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Antecedentes

Amenazados por la degradación de suelos y la sobreexplotación de recursos naturales, los bosques andinos han sido objetos de mutiples proyectos e iniciativas de restauración forestal. Para ser exitosos, los proyectos de restauración deben incluir un plan de monitoreo comprensivo que evalúe indicadores relevantes y sensibles a cambios en el ecosistema. La selección de estos indicadores de monitoreo debe ser juiciosa y hecha en función a los objetivos de la restauración.

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Tropical forest restoration: Fast resilience of plant biomass contrasts with slow recovery of stable soil C stocks

Background

The study looks at three land-use types: 1) land left barren after a clear-cut in the 1950s, with only a sparse cover of shrubs, grasses, and vines, 2) a Eucalyptus exserta plantation established in the 1960s, and 3) a eucalyptus plantation that was clear-cut in 1974 and converted into a plantation of native tree species, now considered a secondary forest. The biomass and soil carbon (C) of these three land-use types were compared to a nearby natural old-growth forest.

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Bioremediation of a crude-oil polluted agricultural-soil at Port Harcourt, Nigeria

Background

Since more than 98% of Nigeria’s current economic support is crude oil, and oil spills are in inevitable and frequent, six treatment sample-cell were tested on the soils of the Niger Delta of Nigeria for crude oil bioremediation. Oil spills cause nitrogen levels to decrease, while increasing carbon content. A decrease in nitrogen and the toxicity of crude oil reduces the growth of heterotrophic bacteria, which utilize petroleum carbon for cell synthesis.

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Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia

Background

The Brazilian Amazon has experienced extensive land conversion from forests to cattle pasture, many of which now lay abandoned. Agro-forestry serves as one potential solution to this problem and this study examines the re-establishment of a diversified soil macrofauna in order to inform this approach.

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Tree species selection for a mine tailigns bioremediation project in Peru

Background

This article explains a project in southern Peru where tree plantings were used as bioremediation for treating tailings water from a copper mine. A variety of 25 tree species were selected for trial plantings on the site that could also be suitable for fuel and construction wood in the future.

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Charaterization and Impact Assessment of Water Harvesting Techniques: A Case Study of Abreha Atsbeha Watershed, Tigray, Ethiopia

Background

This report gives a comprehensive overview of water harvesting techniques in a community called Abreha we Atsbeha in Tigray, Ethiopia.  This community was awarded the UN Equator Prize for their restoration work in 2012.  In addition to providing a detailed historical, demographic, ecological, and hydrological description of the site, the authors also detail the major water harvesting techniques employed, including: bench terracing, stone bunds, stine bunds with trenches, soil bunds with trenches, semi-circular stone bunds, percolation ponds check dams, shallow wells, diversion heads, and hand dug wells. 

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Riparian restortion for protecting water quality in tropic agricultural watersheds

Background

In the Sarapui River watershed in southeastern Brazil, the water quality system was measured for six subwatersheds in the region.  In addition to measuring the subwatersheds, the entire watershed system was also measured and compared to a simulation model that included riparian zones throughout the river watershed.

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