Soil organic phosphorus fraction in pine–oak forest stands in Northeastern Germany

Śla̧zak, Anna; Freese, Dirk; Matos, Eduardo da Silva; Hüttl, Reinhard F.

doi:10.1016/j.geoderma.2010.04.023

Cited by 36 publications

(29 citation statements)

References 48 publications

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“…Values reported were approximately ten times greater than those of NaHCO 3 -Pi, indicating that the labile P forms in these soils are mainly stored in organic forms. In P-deficient soils, as those studied, the organic fractions play a fundamental role in the P cycle and plant nutrition (SLAZAK et al, 2010). These fractions were significantly correlated with soil C content (R: 0.73 ** ), confirming that the presence of labile organic fractions is associated with organic matter accumulation.…”

Section: Resultssupporting

confidence: 58%

“…The labile organic P forms probably buffer the inorganic forms, maintaining the labile inorganic P contents unchanged, even after three Pinus crops, as also observed by SLAZAK et al (2010). Perennial plants have more time to take up P during the cycle than annual crops, so that slow-release forms, such as labile Po forms, can buffer the available P for the forest system.…”

Section: Resultssupporting

confidence: 53%

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Phosphorus fractions in soil after successive crops of Pinus taeda L. without fertilization

et al. 2017

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Pinus cultivation without fertilization is a common practice in southern Brazil, which can induce a decline in the availability of phosphorus (P) in the soil. The purpose of this study was to evaluate the changes in phosphorus fractions in a Humic Cambisol subjected to continuous Pinus taeda L. cultivation without fertilization. Two forest stands were evaluated, after 16 years of Pinus cultivation (1st crop) and 49 years (3rd crop), when soil samples were collected (layers 0-10, 10-20, 20-40, 40-60, and 60-80cm) from six trenches per forest. In soil samples, the P contained in organic (Po) and inorganic (Pi) forms was determined by sequential chemical fractionation. Labile inorganic P fractions remained unchanged after the different cultivation periods. However, the labile organic fractions declined from the first to the third cycle (from 70.6 to 39.8mg dm-3 in the 0-10cm layer), indicating that these forms influence the buffering capacity of labile Pi. The moderately labile organic P acted as a P drain, increasing its percentage of the total, from 34.7 to 56.3%, from the first to the third crop. Soil cultivation for 49 years with Pinus taeda resulted in a reduction of the organic P content, indicating that for this soil use, this P form should be used to diagnose P availability and fertilization requirements.

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Section: Resultssupporting

confidence: 58%

Section: Resultssupporting

confidence: 53%

Phosphorus fractions in soil after successive crops of Pinus taeda L. without fertilization

et al. 2017

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“…However, it must be emphasised that there are large differences in litter quality within deciduous and coniferous species (Reich et al 2005), and probably thus also in P pools. Furthermore, Talkner et al (2009) and Slazak et al (2010) found a higher organic P pool in mixed species stands compared to homogeneous stands, which they also attributed to higher litter turnover rates.…”

Section: Applicability Of Our Results To Other Forest Typesmentioning

confidence: 89%

Four decades of post-agricultural forest development have caused major redistributions of soil phosphorus fractions

et al. 2011

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Fertilisation of agricultural land causes an accumulation of nutrients in the top soil layer, among which phosphorus (P) is particularly persistent. Changing land use from farmland to forest affects soil properties, but changes in P pools have rarely been studied despite their importance to forest ecosystem development. Here, we describe the redistributions of the P pools in a four-decadal chronosequence of post-agricultural common oak (Quercus robur L.) forests in Belgium and Denmark. The aim was to assess whether forest age causes a repartitioning of P throughout the various soil P pools (labile P, slowly cycling P and occluded P); in particular, we addressed the time-related alterations in the inorganic versus organic P fractions. In less than 40 years of oak forest development, significant redistributions have occurred between different P fractions. While both the labile and the slowly cycling inorganic P fractions significantly decreased with forest age, the organic fractions significantly increased. The labile P pool (inorganic + organic), which is considered to be the pool of P most likely to contribute to plant-available P, significantly decreased with forest age (from >20 to <10% of total P), except in the 0-5 cm of topsoil, where labile P remained persistently high. The shift from inorganic to organic P and the shifts between the different inorganic P fractions are driven by biological processes and also by physicochemical changes related to forest development. It is concluded that the organic labile P fraction, which is readily mineralisable, should be taken into account when studying the bioavailable P pool in forest ecosystems.

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“…At agricultural land available P content under grey alder (Alnus incana (L.) Moench) SRC increased from 22.53 to 47.20 mg kg -1 (0-20 cm soil depth) after 5 years (Uri et al 2002). According to Slazak et al (2010) available P also increased with age of trees in mixed pine (Pinus sylvestris L.)/oak (Quercus petraea (Matt.) Liebl.)…”

Section: Soil Improvementmentioning

confidence: 98%

Ecological benefits provided by alley cropping systems for production of woody biomass in the temperate region: a review

et al. 2012

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In temperate Europe alley cropping systems which integrate strips of short rotation coppices into conventional agricultural fields (ACS) are receiving increasing attention. These systems can be used for crops and woody biomass production at the same time, enabling farmers to diversify the provision of market goods. Adding trees into the agricultural land creates various additional benefits for the farmer and society, also known as ecosystem services. However, tree-crop interactions in the temperate region have not been adequately substantiated which is identified as a drawback to the practical implementation of such systems. In order to bridge this gap, the current paper aims to present a comprehensive overview of selected ecosystem services provided by agroforestry with focus on ACS in the temperate region. The literature indicates that compared with conventional agriculture ACS have the potential to increase carbon sequestration, improve soil fertility and generally optimize the utilization of resources. Furthermore, due to their structural flexibility, ACS may help to regulate water quality, enhance biodiversity, and increase the overall productivity. ACS are shown as suitable land use systems especially for marginal sites. Based on the available data collected, we conclude that ACS are advantageous compared to conventional agriculture in many aspects, and therefore suggest that they should be implemented at a larger scale in temperate regions.

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Soil organic phosphorus fraction in pine–oak forest stands in Northeastern Germany

Cited by 36 publications

References 48 publications

Phosphorus fractions in soil after successive crops of Pinus taeda L. without fertilization

Phosphorus fractions in soil after successive crops of Pinus taeda L. without fertilization

Four decades of post-agricultural forest development have caused major redistributions of soil phosphorus fractions

Ecological benefits provided by alley cropping systems for production of woody biomass in the temperate region: a review

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