Phosphorus fractions and phosphatase activity in an Andisol under different forest ecosystems

  title={Phosphorus fractions and phosphatase activity in an Andisol under different forest ecosystems},
  author={Yonathan Redel and Rosa Rubio and Roberto Godoy and Fernando Borie},
Abstract Total phosphorus (P), Olsen P, microbial P and different labile P fractions determined by a modified Hedley procedure, together to acid phosphatase (P-ase), pH and organic C, were analyzed in soil from four Nothofagus rainforest ecosystems differing in forest type and management. The sites included two evergreen (EF) and two secondary deciduous (DF) rainforests growing in an Andisol of southern Chile. Samples were collected from the organic layer and from mineral soil at 2–20 cm depth… Expand
Changes in soil P chemistry as affected by conversion of natural secondary forests to larch plantations
Abstract To assess the impact of conversion of native forests to monocultural larch plantations on soil chemical properties, we compared the total and various fractions of soil phosphorus (P) andExpand
Phosphorus fractions, microbial biomass and enzyme activities in some alkaline calcareous subtropical soils
Positive contribution of soil microbial biomass, especially the microbial biomass P to P availability in the soils under present study is demonstrated. Expand
Chemical fractionation of phosphorus in calcareous soils of Hamedan, western Iran under different land use
We investigated the effects of land uses on P distribution and availability in selected calcareous soils under different management practices. KCl-P (labile P), NaOH-P (Fe-Al-bound P), HCl-PExpand
Responses of soil phosphorus fractions to gap size in a reforested spruce forest
Abstract Gap created by thinning is a vital practice for the management of degraded forest. However, little information is available about the change in soil P fractions following the gap formation.Expand
Fertilizer P Uptake Determined by Soil P Fractionation and Phosphatase Activity
The aim of this study was to determine if three cereal crops differed in their behavior to take up soil and fertilizer P, with emphasis on the relationship between phosphatase activity and PExpand
Comparison of phosphorus fractions and alkaline phosphatase activity in sludge, soils, and sediments
PurposeThe land application or disposal of sewage sludge generally leads to phosphorus (P) loss in aquatic environments and often results in eutrophication. The nature of P fractions plays a key roleExpand
Relationships between P fractions and the microbial biomass in soils under different land use management
Abstract The first aim of the present study was to investigate the relationship between microbial biomass P and P fractions, especially the organic P (Po) fractions, in a group of 21 German soilsExpand
Effects of elevated pH and phosphorus fertilizer on soil C, N and P enzyme stoichiometry in an acidic mixed mesophytic deciduous forest
Abstract Long-term additions of lime and/or phosphate fertilizer caused an indirect and/or direct increase in the availability of P in mixed mesophytic deciduous forest soil on the unglaciatedExpand
Soil P fractions in a volcanic soil chronosequence of Central Mexico and their relationship to foliar P in pine trees
Phosphorus (P) is a major plant nutrient, however, its availability in volcanic ash soils is presumed to be small, due to its specific sorption on short-range order minerals. We analyzed distinct PExpand
Global patterns of phosphatase activity in natural soils
The results suggest that organic P (Porg), rather than available P, is the most important P fraction in predicting phosphatase activity, and that P recycling is driven by a broad scale pattern of ecosystem productivity capacity. Expand


Phosphatase activity, microbial phosphorus, and fine root growth in forest soils in the Sierra de Gata, western central Spain
Abstract. Acid phosphatase activity (APA), labile P fractions and fine root growth were studied in an oak (Quercus pyrenaica Willd.) forest in the Sierra de Gata, in western central Spain. Soils inExpand
Phosphorus Transformations in an Oxisol under contrasting land-use systems: The role of the soil microbial biomass
It is generally assumed that phosphorus (P) availability for plant growth on highly weathered and P-deficient tropical soils may depend more on biologically mediated organic P (Po) turnover processesExpand
Changes in Inorganic and Organic Soil Phosphorus Fractions Induced by Cultivation Practices and by Laboratory Incubations1
Changes in inorganic and organic phosphorus (P) fractions resulting from 65 years of cropping in a wheat-wheat-fallow rotation were studied using a sequential extraction technique. Total P content ofExpand
Factors affecting soil P dynamics in temperate volcanic soils of southern Argentina
Abstract During volcanic soil development, factors controlling plant-available P shift from hydrolysis of P bound to primary Ca compounds to mineralization of organic P, and an increasing role ofExpand
Effects of afforestation on phosphorus dynamics and biological properties in a New Zealand grassland soil
The hypothesize that the lower levels of C, N and organic P found in soil under forest are due to enhanced microbial and phosphatase activity during the earlier stages of forest development, and the forest floor may be an important source of nutrients for plant growth and balance the apparent reduction in C,N and P in mineral soil through mineralisation and plant uptake. Expand
The phosphorus composition of contrasting soils in pastoral, native and forest management in Otago, New Zealand: Sequential extraction and 31P NMR
The distribution and form of P in soil is central to the sustainability of agricultural practice. This study used sequential fractionation and 31 P nuclear magnetic resonance spectroscopy ( 31 P NMR)Expand
The volcanic ash-derived soils have strong capacity to retain phosphorus (P). The P in 10 virgin Ultisols and Andisols in Southern Chile and their clay size fractions were fractionated intoExpand
Phosphorus fractions in montane forest soils of the Cordillera de Piuchué, Chile: biogeochemical implications
The Hedley fractionation procedure as modified by Tiessen and Moir (1993) was used to evaluate the amounts of P in several soil chemical pools in an old, unglaciated landscape at 600 m elevation inExpand
Phosphorus fractions and sorption processes in soil samples taken in a forest-savanna sequence of the Gran Sabana in southern Venezuela
P fractions and sorption processes were studied in samples taken from the organic surface layer and in the underlying mineral soil of a forest-savanna sequence consisting of: (1) tall primary forestExpand
Phosphorus efficiency and the forms of soil phosphorus utilized by upland rice cultivars
Experimental measurements of phosphorus (P) uptake and the forms of soil P depleted from an Ultisol by 6 upland rice cultivars are reported. In both P-fertilized and-unfertilized soil, the majorityExpand