Journal Title
Title of Journal: Nutr Cycl Agroecosyst
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Abbravation: Nutrient Cycling in Agroecosystems
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Publisher
Springer Netherlands
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Authors: V Rolo M L LópezDíaz G Moreno
Publish Date: 2012/04/28
Volume: 93, Issue: 1, Pages: 89-102
Abstract
Increases of woody plant cover in former savannas and managed savannalike systems are currently considered one of the major components of global environmental change Besides shrub encroachment is frequently recommended as a practical tool to ensure tree regeneration However there is little evidence that this process affects neighboring plants—tree and pasture—production and nutrient status in Mediterranean open woodlands through the modification of soil properties The effect of two contrasting in terms relevant to nutrient cycling shrub species Cistus ladanifer and Retama sphaerocarpa were investigated Cistus a shallow rooted shrub reduced topsoil water content and enhanced P and K but depleted N and Mg availability under its canopy It worsened consistently both tree overstory and pasture understory production and nutrient content By contrast Retama a deeprooted N2fixing shrub increased topsoil water content and N and Mg availability but diminished P availability In addition it affected distinctively to pasture facilitation and trees competition biomass production Overall pasture production irrespective of the habitat was mainly limited by P whereas trees growing with Cistus were limited by Ca and N and those trees growing with Retama by P availability Our results showed that shrubs are capable to affect consistently both pasture and tree production and nutrient status through the modification of soil nutrient availability However these effects depended on specific shrubunderstory and shruboverstory combinations which have implications for managing grazed open woodlandsWe are grateful to M R López and E Pinilla for their support in plant samples analysis and to Z Kikvidze for his comments on this manuscript This work has been funded by the Spanish Research Program AGL 200609435 and Plan Regional de Investigación of Extremadura III PRI + D + I PRI07C044 V Rolo was supported by a doctoral grant funded by the Regional Government of Extremadura Consejería de Economía Comercio e Innovación and Fondo Social Europeo
Keywords:
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- Effects of fertiliser type and the presence or absence of plants on nitrous oxide emissions from irrigated soils
- Relative contribution of trees and crops to soil carbon content in a parkland system in Burkina Faso using variations in natural 13 C abundance
- Forecasting long-term global fertilizer demand
- 15 N tracer technique analysis of the absorption and utilisation of nitrogen fertiliser by potatoes
- Nitrogen, phosphorus, and potassium budgets in Indian agriculture
- Effects of different manuring systems with and without biogas digestion on nitrogen cycle and crop yield in mixed organic dairy farming systems
- Crop response of aerobic rice and winter wheat to nitrogen, phosphorus and potassium in a double cropping system
- Net N immobilisation during the biodegradation of mucilage in soil as affected by repeated mineral and organic fertilisation
- Phosphorus and potassium cycling in a long-term no-till integrated soybean-beef cattle production system under different grazing intensities insubtropics
- Contribution of relay intercropping with legume cover crops on nitrogen dynamics in organic grain systems
- Method and timing of grassland renovation affects herbage yield, nitrate leaching, and nitrous oxide emission in intensively managed grasslands
- Mineralizable soil nitrogen and labile soil organic matter in diverse long-term cropping systems
- Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system
- Soil N 2 O fluxes in integrated production systems, continuous pasture and Cerrado
- Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe
- Gross nitrogen mineralization in pulse-crop rotations on the Northern Great Plains
- Management strategies for reducing soil degradation through modeling in a GIS environment in northern Ethiopia catchment
- Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West African Sahel
- Nitrogen fertilization and critical nitrogen concentration for contemporary high yielding cotton under no-tillage
- Effects of catch crops on silage maize ( Zea mays L.): yield, nitrogen uptake efficiency and losses
- Nitrogen input, 15 N balance and mineral N dynamics in a rice–wheat rotation in southwest China
- Nutrient cycling in an agroforestry alley cropping system receiving poultry litter or nitrogen fertilizer
- How much nitrogen is fixed by biological symbiosis in tropical dry forests? 2. Herbs
- Nitrogen fertilizer placement and timing affects bread wheat ( Triticum aestivum) quality and yield in an irrigated bed planting system
- Nitrogen fixation of red clover interseeded with winter cereals across a management-induced fertility gradient
- Response of bulk chemical composition, lignin and carbohydrate signature to grassland conversion in a ley-arable cropping system
- Nitrogen recovery and downslope translocation in maize hillside cropping as affected by soil conservation
- Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
- Long-term effects of fertilization and manuring on groundnut yield and nutrient balance of Alfisols under rainfed farming in India
- Response of intensively grazed ryegrass dairy pastures to fertiliser phosphorus and potassium
- Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
- Above- and belowground litter stocks and decay at a multi-species afforestation site on arid, saline soil
- Productivity of yam-based systems with herbaceous legumes and short fallows in the Guinea-Sudan transition zone of Benin
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