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RESEARCH ARTICLE

Processes influencing soil carbon storage following afforestation of pasture with Pinus radiata at different stocking densities in New Zealand

Neal A. Scott A B , Kevin R. Tate A , Des J. Ross A and Aroon Parshotam A
+ Author Affiliations
- Author Affiliations

A Landcare Research, Private Bag 11052, Palmerston North, New Zealand.

B Corresponding author. Present address: Queen’s University, Kingston ON K7L3N6, Canada. Email: scottn@post.queensu.ca

Australian Journal of Soil Research 44(2) 85-96 https://doi.org/10.1071/SR05013
Submitted: 21 January 2005  Accepted: 4 January 2006   Published: 27 March 2006

Abstract

Since 1992, afforestation with Pinus radiata D. Don in New Zealand has led to the establishment of over 600?000 ha of new plantation forests, about 85% of which are on fertile pastures used previously for grazing sheep and cattle. While this leads to rapid accumulation of carbon (C) in vegetation, the effects of afforestation on soil C are poorly understood. We examined key soil C cycling processes at the (former) Tikitere agroforestry experimental site near Rotorua, New Zealand. In 1973, replicated stands of P. radiata (100 and 400 stems/ha) were established on pastures, while replicated pasture plots were maintained throughout the first 26-year rotation. In 1996, soil C and microbial biomass C in 0–0.10 m depth soil, in situ soil respiration and net N mineralisation, and soil temperature were lower in the forest than in the pasture, and tended to decline with increasing tree-stocking density. In the 400 stems/ha stands, mineral soil C (0–0.50 m depth) was lower than in the pasture (104 and 126 Mg C/ha, respectively; P < 0.01). Carbon accumulation in the forest floor during the first rotation of these forest stands was 12 Mg C/ha. Using the Rothamsted soil C model (Roth-C), we examined how changes in plant C inputs following afforestation might lead to changes in soil C content to 0.30 m depth. Steady-state pasture inputs of 9.0 Mg C/ha.year were estimated using Roth-C; these C inputs were assumed to decrease linearly during the first 12 years following tree establishment (until canopy closure). Below-ground C inputs in the forest were estimated using steady-state relationships between litterfall and soil respiration; these inputs were assumed to increase linearly between years 1 and 12, after which they remained constant at 1.53 Mg C/ha.year until harvest. Measured changes in soil C (0-0.30 m) during the first rotation, in conjunction with the below-ground inputs, were used to estimate above-ground inputs (as a proportion of total litterfall [3.81 Mg C/ha.year]) to the soil. Our results suggest 10% of litterfall C over one rotation actually entered the mineral soil. Using these results and estimates of additional C inputs to the soil from harvest slash and weeds following harvest, we found mineral-soil C stocks would continue to decline during second and third rotations of P. radiata; the magnitude of this decline depended in part on how much slash enters the mineral soil matrix. We confirmed our modelling approach by simulating soil C changes to within 8% over 19 years following afforestation of pasture at another previously studied site, Purukohukohu. Whether afforestation leads to an increase or decrease in mineral-soil C may depend on previous pasture management; in highly productive pastures, high C inputs to the soil may maintain soil C at levels that cannot be sustained when trees are planted onto these grasslands.

Additional keywords: carbon cycling, nitrogen cycling, plantation, forest, land-use change, forest management.


Acknowledgments

Financial support for this work was provided by the New Zealand Foundation for Research Science and Technology. The lead author also acknowledges support from the Woods Hole Research Center, MA. We thank Charles Feltham and Natasha Rodda for technical assistance, and Martin Hawke of AgResearch for litterfall collections.


References


Alfredsson H, Condron LM, Clarholm M, Davis MR (1998) Changes in soil acidity and organic matter following the establishment of conifers on former grassland in New Zealand. Forest Ecology and Management 112, 245–252.
CrossRef |

Arneth A, Kelliher FM, Gower ST, Scott NA, Byers JN, McSeveny TM (1998) Physical variables regulating soil carbon dioxide efflux following clear-cutting of a Pinus radiata D. Don plantation. Journal of Geophysical Research 103, 5695–5705.
CrossRef |

Barson MM, Randall LA, Bordas V (2000) Land Cover Change in Australia. Results of the collaborative Bureau of Rural Sciences—State Agencies’ Project on Remote Sensing of Land-cover Change. Bureau of Rural Sciences, Canberra.

Beets PN, Brownlie RK (1987) Puruki experimental catchment: site, climate, forest management, and research. New Zealand Journal of Forestry Science 17, 137–160.

Blakemore LC, Searle PL, Daly BK (1987) Methods for chemical analysis of soils. New Zealand Soil Bureau Scientific Report No.80, Wellington.

Coleman K, Jenkinson DS (1996) RothC-26.3—a model for the turnover of carbon in soil. ‘Evaluation of soil organic matter models’. (Eds DS Powlson, P Smith, JU Smith) pp. 237–246. (Springer-Verlag: Berlin/Heidelberg)

Comins HN, McMurtrie RE (1993) Long-term response of nutrient-limited forests to CO2 enrichment—equilibrium behaviour of plant-soil models. Ecological Applications 3, 666–681.

Compton JE, Boone RD (2000) Long-term impacts of agriculture on soil carbon and nitrogen in New England forests. Ecology 81, 2314–2330.

Currie WS, Aber JD, McDowell WH, Boone RD, Magill AH (1996) Vertical transport of dissolved organic C and N under long-term N amendments in pine and hardwood forests. Biogeochemistry 35, 471–505.
CrossRef |

Davidson EA, Savage K, Bolstad P, Clark DA, Curtis PS , et al. (2002) Below-ground carbon allocation in forests estimated from litterfall and IRGA-based soil respiration measurements. Agricultural and Forest Meteorology 113, 39–51.
CrossRef |

Davis MR, Condron LM (2002) Impact of grassland afforestation on soil carbon in New Zealand: a review of paired-site studies. Australian Journal of Soil Research 40, 675–690.
CrossRef |

Eno CF (1960) Nitrate production in the field by incubating the soil in polyethylene bags. Soil Science Society of America Journal 24, 277–299.

Falloon P, Smith P, Coleman K, Marshall S (1998) Estimating the size of the inert organic matter pool from total soil organic carbon content for use in the Rothamsted carbon model. Soil Biology and Biochemistry 30, 1207–1211.
CrossRef |

Falloon P, Smith P, Coleman K, Marshall S (2000) How important is inert organic matter for predictive soil carbon modelling using the Rothamsted carbon model? Soil Biology and Biochemistry 32, 433–436.
CrossRef |

Ford-Robertson JB (1997) Carbon balance calculations for forest industries—a review. New Zealand Forestry 42, 32–36.

Giardina CP, Ryan MG (2002) Total belowground carbon allocation in a fast-growing Eucalyptus plantation estimated using a carbon balance approach. Ecosystems 5, 487–499.
CrossRef |


Giddens KM, Parfitt RL, Percival HJ (1997) Comparison of some soil properties under Pinus radiata and improved pasture. New Zealand Journal of Agricultural Research 40, 409–416.

Gower ST, Pongracic S, Landsberg JJ (1997) A global trend in belowground carbon allocation: can we use the relationship at smaller scales? Ecology 77, 1750–1755.

Guo LB, Gifford RM (2002) Soil carbon stocks and land use change: a meta-analysis. Global Change Biology 8, 345–360.
CrossRef |

Hall GMK, Wiser SK, Allen RB, Beets PN, Goulding CJ (2001) Strategies to estimate national forest carbon stocks from inventory data: the 1990 New Zealand baseline. Global Change Biology 7, 389–403.
CrossRef |

Halliday JC, Tate KR, McMurtrie RM, Scott NA (2003) Mechanisms for changes in soil C storage with pasture to Pinus radiata land-use change. Global Change Biology 9, 1294–1308.
CrossRef |

Hawke MF (1991) Pasture production and animal performance under pine agroforestry in New Zealand. Forest Ecology and Management 45, 109–118.
CrossRef |

Hawke MF, Knowles RL (1997) Temperate agroforestry systems in New Zealand. ‘Temperate agroforestry systems’. (Eds AM Gordon, SM Newman) pp. 85–118. (CAB International: Wallingford, UK)

Hawke MF, O’Connor MB (1993) The effect of agroforestry on soil pH and nutrient levels at Tikitere. New Zealand Journal of Forestry Science 23, 40–48.

Hewitt, AE (1998). ‘New Zealand Soil Classification.’ Landcare Research Science Series No. 1. (Manaaki Whenua Press: Lincoln, New Zealand)

Holland EA, Detling JK (1990) Plant response to herbivory and belowground nitrogen cycling. Ecology 71, 1040–1049.

IPCC (2000). ‘Intergovernmental Panel on Climate Change Special Report on Land-use Change and Forestry.’ (Cambridge University Press: Cambridge, UK)

Jenkinson DS (1988) Determination of microbial biomass carbon and nitrogen in soil. ‘Advances in nitrogen cycling in agricultural ecosystems’. (Ed. JR Wilson) pp. 368–386. (CAB International: Wallingford, UK)

Jenkinson DS, Adams DE, Wild A (1991) Model estimates of CO2 emissions from soil in response to global warming. Nature 351, 304–306.
CrossRef |

Jenkinson DS, Harkness DD, Vance ED, Adams DE, Harrison AF (1992) Calculating net primary production and annual input of organic matter to soil from the amount and radiocarbon content of soil organic matter. Soil Biology and Biochemistry 24, 295–308.
CrossRef |

Johnson DW, Curtis PS (2002) Effects of forest management on soil C and N storage: meta-analysis. Forest Ecology and Management 140, 227–238.
CrossRef |

Johnson DW, Knoepp JD, Swank WT, Shan J, Morris LA, Van Lear DH, Kapeluck PR (2002) Effects of forest management on soil carbon: results of some long-term resampling studies. Environmental Pollution 116, S201–S208.
CrossRef | PubMed |

Knowles RL, Hawke MF, Maclaren JP (1995) Agroforestry research at Tikitere. AgResearch and NZ Forest Research Institute, Unpublished Report.

Maclaren JP (1996) Plantation forestry: its role as a carbon sink. ‘Greenhouse: coping with climate change’. (Eds WJ Bouma, GI Pearman, MR Manning) pp. 417–436. (CSIRO Publishing: Collingwood, Vic.)

Maclaren JP, Wakelin SJ (1991) Forestry and forest products as carbon sinks in New Zealand. Bulletin No.162, N.Z. Forest Research Institute Ltd., Rotorua, New Zealand.

MAF (2003). A national exotic forest description as at 1 April 2003. Ministry of Agriculture and Forestry, Wellington, New Zealand; http://www.maf.govt.nz/statistics/primaryindustries/forestry/forest-resources/national-exotic-forest-2003/index.htm

McDowell WH, Likens GE (1988) Origin, composition, and flux of dissolved organic carbon in the Hubbard Brook valley. Ecological Monographs 58, 177–195.

McMurtrie RE, Medlyn BE, Dewar RC (2001) Increased understanding of nutrient immobilization in soil organic matter is critical for predicting the carbon sink strength of forest ecosystems over the next 100 years. Tree Physiology 21, 831–839.
PubMed |


MfE (1997) Climate Change: The New Zealand Response II. New Zealand’s second communication under the Framework Convention on Climate Change. Ministry for the Environment, Wellington, New Zealand.

Michalzik B, Kalbitz K, Park JH, Solinger S, Matzner E (2001) Fluxes and concentrations of dissolved organic carbon and nitrogen—a synthesis for temperate forests. Biogeochemistry 52, 173–205.
CrossRef |

Nadelhoffer KJ, Raich JW, Aber JD (1998) A global trend in below-ground carbon allocation: comment. Ecology 79, 1822–1825.

Parfitt RL, Salt GJ, Saggar S (2001) Post-harvest residue decomposition and nitrogen dynamics in Pinus radiata plantations of different N status. Forest Ecology and Management 154, 55–67.
CrossRef |

Parfitt RL, Scott NA, Ross DJ, Salt GJ, Tate KR (2003) Land-use effects on soil C and N transformation in soil of high N status: comparisons under indigenous forest, pine plantation and pasture. Biogeochemistry 66, 203–221.
CrossRef |

Parshotam A (1996) The Rothamsted soil carbon turnover model-discrete to continuous form. Ecological Modelling 86, 283–289.
CrossRef |

Paul, EA ,  and  Clark, FE (1989). ‘Soil microbiology and biochemistry.’ (Academic Press: San Diego, CA)

Paul KI, Polglase PJ (2004) Calibration of the RothC model to turnover of soil carbon under eucalypts and pines. Australian Journal of Soil Research 42, 883–895.
CrossRef |

Paul KI, Polglase PJ, Kyakuengama JG, Khanna PK (2002) Change in soil carbon following afforestation. Forest Ecology and Management 168, 241–257.
CrossRef |

Paul KI, Polglase PJ, Richards GP (2003) Predicted change in soil carbon following afforestation or reforestation, and analysis of controlling factors by linking a C accounting model (CAMFor) to models of forest growth (3PG), litter decomposition (GENDEC) and soil C turnover (RothC). Forest Ecology and Management 177, 485–501.
CrossRef |

Qualls RG, Haines BL, Swank WT (1991) Fluxes of dissolved organic nutrients and humic substances in a deciduous forest. Ecology 72, 254–266.

Raich JW, Nadelhoffer KJ (1989) Belowground carbon allocation in forest ecosystems: global trends. Ecology 70, 1346–1354.

Rastetter EB, McKane RB, Shaver GR, Melillo JM (1992) Changes in C storage by terrestrial ecosystems: how C–N interactions restrict responses to CO2 and temperature. Water, Air, and Soil Pollution 64, 327–344.
CrossRef |

Ross DJ, Tate KR, Scott NA, Feltham CW (1999) Land-use change: effects on soil carbon, nitrogen and phosphorus pools and fluxes in three adjacent ecosystems. Soil Biology and Biochemistry 31, 803–813.
CrossRef |

Ross DJ, Scott NA, Tate KR, Rodda NJ, Townsend JA (2001) Root effects on soil carbon and nitrogen cycling in a Pinus radiata D. Don plantation on a coastal sand. Australian Journal of Soil Research 39, 1027–1039.
CrossRef |

Ross DJ, Tate KR, Scott NA, Wilde RH, Rodda NJ, Townsend JA (2002) Afforestation of pastures with Pinus radiata influences soil carbon and nitrogen pools and mineralisation and microbial properties. Australian Journal of Soil Research 40, 1303–1318.
CrossRef |

Saggar S, Hedley CB, Salt G, Giddens KM (2000) Influence of soil P status and of added N on C mineralisation from 14C-labelled glucose. Biology and Fertility of Soils 32, 209–216.
CrossRef |

Saggar S, Hedley CB, Salt GJ (2001) Soil microbial biomass, metabolic quotient, and carbon and nitrogen mineralisation in 25-year-old Pinus radiata agroforestry regimes. Australian Journal of Soil Research 39, 491–504.
CrossRef |

Scott NA, Binkley D (1997) Litter quality and annual net N mineralization: comparison across North American forest sites. Oecologia 111, 151–159.
CrossRef |

Scott NA, Tate KR, Ford-Robertson J, Giltrap DJ, Smith CT (1999) Soil carbon storage in plantation forests and pastures: land-use change implications. Tellus 51B, 326–335.

Scott NA, Tate KR, Giltrap DJ, Smith CT, Wilde RH, Newsome PF, Davis MR (2002) Monitoring land-use change effects on soil carbon in New Zealand: quantifying baseline soil carbon stocks. Environmental Pollution 116, S167–S186.
CrossRef | PubMed |

Soil Survey Staff (1998). ‘Keys to Soil Taxonomy.’ 8th edn . (USDA Natural Resources Conservation Service: Washington, DC)

SYSTAT (1996). ‘SYSTAT 6.0 for Windows: Statistics.’ (SPSS Inc.: Chicago, IL)

Tate KR, Giltrap DJ, Parshotam A, Hewitt AE, Ross DJ, Kenny GJ, Warrick RA (1996) Impacts of climate change on soils and land systems in New Zealand. ‘Greenhouse: coping with climate change’. (Eds WJ Bouma, GJ Pearman, MR Manning) pp. 417–430. (CSIRO Publishing: Collingwood, Vic.)

Tate KR, Giltrap DJ, Claydon JJ, Newsome PF, Atkinson IAE, Taylor MD, Lee R (1997) Organic carbon stocks in New Zealand’s terrestrial ecosystems. Journal of the Royal Society of New Zealand 27, 315–335.

Tate KR, Davis MR, Wilde RH, Beets P, Baisden WT, Betts H, Newsome PF, Giltrap DJ, Gibb R (2001) Contribution of soil carbon to New Zealand’s CO2 emissions XV. Ongoing sampling requirements, including coefficients of change and improving the database. Report to Minstry for the Environment (JNT0001/137), Wellington, New Zealand.

Tate KR, Ross DJ, Scott NA, Rodda NJ, Townsend JA, Arnold GC (2006) Post-harvest patterns of carbon dioxide production, methane uptake and nitrous oxide production in a Pinus radiata D. Don plantation. Forest Ecology and Management (In press) ,

Tate KR, Scott NA, Saggar S, Giltrap DJ, Baisden WT, Newsome PF, Trotter CM, Wilde RH (2003) Land-use change alters New Zealand’s terrestrial carbon budget: reducing uncertainties associated with estimates of soil carbon change. Tellus 55B, 364–377.

Tate KR, Wilde RH, Giltrap DJ, Baisden WT, Saggar S, Trustrum NA, Scott NA, Barton JP (2005) Soil organic carbon stocks and flows in New Zealand: System development, measurement and modelling. Canadian Journal of Soil Science 85, 481–489.

Tate, RL (1987). ‘Soil organic matter.’ (John Wiley and Sons: New York)

Yeates GW, Hawke MF, Rijkse WC (2000) Changes in soil fauna and soil conditions under Pinus radiata agroforestry regimes during a 25-year tree rotation. Biology and Fertility of Soils 31, 391–406.
CrossRef |








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