Land-use change: effects on soil carbon, nitrogen and phosphorus pools and fluxes in three adjacent ecosystems

Ross, D. J.; Tate, K. R.; Scott, Neal A.; Feltham, C.W.

doi:10.1016/s0038-0717(98)00180-1

Cited by 198 publications

(129 citation statements)

References 47 publications

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“…A number of studies have been conducted to investigate induced SOC changes after afforestation (Wellock et al 2011) with different conclusions: (i) no change (Davis 2001;Davis et al 2003;De gryze et al 2004;Peri et al 2010), (ii) increase (Guo & Gifford 2002;Del Galdo et al 2003;Hooker & Compton 2003;Mao et al 2010), (iii) decrease (Perrott et al 1999;Ross et al 1999;Chen et al 2004). Several studies have shown a similar trend, where initially there was a reduction in SOC stocks in a brief period following afforestation, as the decomposition of soil organic matter exceeded the input of organic matter from the trees.…”

mentioning

confidence: 99%

Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile

et al. 2014

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mentioning

confidence: 99%

Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile

et al. 2014

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“…In a recent meta-analysis, Berthrong et al (2009) reported that Eucalyptus and Pinus plantations induced a strong and moderate acidification, respectively. A general decrease of pH was also observed in afforestations of a never-tilled soil or grasslands (Ross et al, 1999;Chen et al, 2000;Sartori et al, 2007). Consistently, Guo and Han (2008) reported significant decreases of pH at 0-10 cm and at 10-20 cm soil depth due to soil use conversion based on a 50-year-old Populus davidiana plantation.…”

Section: Chemical Parametersmentioning

confidence: 76%

“…Significant soil P changes were observed between T1-T2 in comparison with WS and within poplar SRF, T3 showed a significant soil P increase, in comparison with T1 and T2. Some authors reported increases of soil P due to the afforestation with different tree species in comparison with grasslands or agricultural soils (Ritter, 2007;Zornoza et al, 2009), while some others observed higher P contents or no changes in arable lands or pastures than in adjacent forests (Koerner et al, 1997;Ross et al, 1999;Chen et al 2000;Zhao et al, 2007). Such contrasting results might be due to variables influencing P dynamics, which may be associated with SOC changes as reported by Piccolo et al (1996), and to previous land-use, time since land-use conversion, tree species planted and climatic conditions (Ross et al, 1999;Ritter, 2007;Zhao et al, 2007).…”

Section: Chemical Parametersmentioning

confidence: 99%

Changes in soil quality following poplar short-rotation forestry under different cutting cycles

Bene

Pellegrino²,

Tozzini³

et al. 2011

Ital J Agronomy

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In the last decade, the change of energy concept induced by global warming and fossil fuel depletion together with the advances in agriculture towards a multifunctional and a more sustainable use of rural areas promoted the development of biomass crops. In this regard, Populus is largely utilised in short-rotation forestry (SRF), as it is known to be a fast-growing tree, producing large yields and having a high energy potential. Most studies focused on economic-productive and energetic aspects of Populus plantations, whereas their impact on soil quality and health have been poorly investigated. In this study, the main soil chemical parameters, microbial biomass and activity were assessed aiming at evaluating the impact of Populus SRF under one, two and three-year cutting cycles (T1, T2 and T3) in comparison with an intensive food cropping system (wheat-soybean rotation, WS). In addition, arbuscular mycorrhizal (AM) fungal inoculum potential was measured using root colonisation (RC) and number of entry points (EP). In the 0-10 cm soil depth, pH, phosphorus (P), total nitrogen (N) and soil organic carbon (SOC) were significantly affected by the management. In comparison with WS, Populus SRF treatments produced significant pH decreases together with N and SOC increases, these last ones ranging from 11% to 34% and from 21% to 57%, respectively. Under T3 soil pH decreased of 0.25 units, while P, N and SOC increased of 10%, 34% and 57%, respectively, in comparison with WS. Microbial biomass and soil respiration under SRF showed also mean increases of 71% and 17%, respectively. Under SRF treatments, Lolium perenne, commonly observed in all field plots, was more than twofold colonised by AM fungi in comparison with WS, while the number of EP, observed on Lactuca sativa used as a test plant, showed values ranging from 8 to 21 times higher. The present study shows the potential of a Populus SRF to improve soil chemical, biochemical and biological quality parameters in comparison with an intensive food cropping system.

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“…The qCO 2 of live cells in B, BF or BPF was higher than qCO2 in soil incubated at 25°C, reported to be in the range of 0.023-0.12 g CO2-C (g biomass-C) −1 day −1 in other studies 7,[17][18][19][20] . These differences from 0.16-0.23 in our present study may be attributable to the microbial biomass of dead cells having been included in the calculation of qCO2 in these studies.…”

mentioning

confidence: 85%

Respiration and Carbon Balance of the Bacterium Pseudomonas sp., a Protozoan Tetrahymena thermophila, and a Fungus Trichoderma viride in a Food Chain System with Glass Beads

2008

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The respiration rates per unit of microbial biomass (qCO2) of live cells were evaluated in inorganic medium using glass beads to which glucose was added at a rate of 50 µg C vial −1 day −1 . The qCO2 of live cells (g CO2-C (g biomass-C) −1 day −1 ) was 0.23 in a pure culture of bacteria, 0.67 in a mixed culture of bacteria and protozoa, 0.16 in a mixed culture of bacteria and fungi, and 0.20 in a mixed culture of bacteria, protozoa and fungi. A culture system containing glass beads is a useful tool to estimate qCO2 of live cells.Key words: microbial food chain, cell-specific respiration, carbon balance, grazing, microcosmThe rate of CO 2 evolution per unit of microbial biomass (metabolic quotient, qCO2) in soil is an indispensable factor for the evaluation of microbial activity 7,29) , the maintenance requirement of microorganisms 2) , or turnover rate of microbial biomass 19) . The structure of the microbial food chain system may be one of the factors affecting qCO2. In our previous study 26) , for example, qCO 2 in a food chain system consisting of glucose, bacteria and protozoa was 13-fold higher than in the system of glucose and bacteria without the protozoa. This difference was attributable to the fact that microbial biomass in the presence of protozoa was one 12th of that in their absence, but the rate of CO2 evolution from the system was almost the same, irrespective of the presence of protozoa. Microbial food chain systems in soil contain fungi as well as bacteria and protozoa. Thus, investigation of qCO2 in the presence of fungi is also needed.Microbial biomass in soil has been estimated either by fumigation-extraction or incubation methods 27,28) . These methods are unable to distinguish live from dead cells. Although direct microscopic observation was sometimes applied 18,21,26) , live cells were not distinguished from dead cells; therefore, the qCO2 of live cells has not yet been evaluated.In this study, the qCO 2 of live cells was estimated in pure cultures of bacteria or mixed cultures with protozoa and/or fungi. Live cells were distinguished from dead ones by a staining method used with direct microscopic observation; however, studies on microbes in soil using direct microscopic observation are very laborious and difficult 5) because soil contains a lot of organic and inorganic particles which are similar in size and shape to microorganisms and have autofluorescence. We therefore used glass beads as model soil particles in this study because they are uniform in shape and contain neither debris nor organic compounds.Pseudomonas sp. strain DP-4 24) was used as a model heterotrophic bacterium. It was preincubated in an inorganic medium 26) supplemented with 1.6 mg C mL −1 of glucose for 6 days, with shaking, at 30°C and the bacterial cells were then collected by centrifugation (10,000×g, 15 min.). Tetrahymena thermophila inbred strain B, provided by Dr. T. Sugai of Ibaraki University, was used as a model protozoan. It was preincubated in a PYG medium (Bacto TM Peptone [Becton, Dickinson and Company, ...

show abstract

Land-use change: effects on soil carbon, nitrogen and phosphorus pools and fluxes in three adjacent ecosystems

Cited by 198 publications

References 47 publications

Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile

Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile

Changes in soil quality following poplar short-rotation forestry under different cutting cycles

Respiration and Carbon Balance of the Bacterium Pseudomonas sp., a Protozoan Tetrahymena thermophila, and a Fungus Trichoderma viride in a Food Chain System with Glass Beads

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