geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Changes in total carbon and nutrients in soil profiles and accumulation in biomass after a 30-year rotation of Pinus radiata on podzolized sands Impacts of intensive harvesting on soil resources


, : Changes in total carbon and nutrients in soil profiles and accumulation in biomass after a 30-year rotation of Pinus radiata on podzolized sands Impacts of intensive harvesting on soil resources. Forest Ecology and Management 258(10): 0-2193

A large proportion of plantations of radiata pine (Pinus radiata D. Don) in southern Australia have been established on podzolized coastal sands with low nutrient reserves. Inter-rotational management of the forest floor and harvesting residues has been shown to be critical to maintain the productive capacity of these soils. In 1974 a study was initiated at the end of the first rotation to evaluate the long-term sustainability of fast-growing plantations on these podzolized sands. Growth was measured at 5, 10 and 20 years and prior to clear-felling at age 30. Soil sampling at the end of the first rotation in 1974 was repeated in 2004 prior to clear-felling to determine changes in carbon and nutrients in profiles after 30 years. Forest floor and tree biomass were measured to determine sequestration of carbon and nutrients in mature radiata pine.Productivity of radiata pine on infertile podzolized sands was either maintained at 26 m3 ha−1 year−1 or improved from 21 to 27 m3 ha−1 year−1 over two rotations from 1946 to 2005 and this was attributed to conservation of organic matter and nutrients through retention of litter and harvesting residues after the first rotation. Total carbon (23.4 Mg ha−1) and N (595 kg ha−1) remaining in residues and litter after harvesting compensated for losses of carbon (9.2 Mg ha−1) and N (582 kg ha−1) in soil (0–75 cm) over the rotation. Total S, P, K, Ca and Mg remaining on site after conventional harvesting (stem wood and bark) increased during the second rotation (1975–2005). Accumulation of nutrients in the above-ground biomass and soil over 30 years exceeded deposition in rainfall indicating a redistribution of S, P, K, Ca and Mg from the sub-soil to tree biomass. The net accumulation of N in biomass (201 kg ha−1) also exceeded atmospheric deposition indicating significant inputs from nitrogen fixation during the rotation.Intensive harvesting including removal of log residues and branches for biofuels but leaving foliage on site increased nutrient exports by approximately 30% but did not exceed accession of nutrients over 30 years except for N. In contrast, whole-tree harvesting including foliage increased nutrient exports by 70–150% and fertilizers are likely to be required to compensate for the additional removal of nutrients and to maintain site productivity in the next rotation.

US$19.90

DOI: 10.1016/j.foreco.2009.02.010


Other references

Kang, M.Jeong.; Khanal, T.; Kim, H.Gyun.; Lee, D.Hun.; Yeo, H.Kyung.; Lee, Y.Sup.; Ahn, Y.Tae.; Kim, D.Hyun.; Jeong, H.Gwang.; Jeong, T.Cheon., 2012: Role of metabolism by human intestinal microflora in geniposide-induced toxicity in HepG2 cells. Possible role of metabolism by the intestinal bacteria in geniposide-induced cytotoxicity was investigated in human hepatoma HepG2 cells. Initially, toxic effects of geniposide and its metabolite genipin were compared. Genipin, a deglycosylated fo...

Gutierrez, S.; Carbonell, E.; Galofre, P.; Creus, A.; Marcos, R., 1999: Low sensitivity of the sister chromatid exchange assay to detect the genotoxic effects of radioiodine therapy. To assess the genotoxic risk associated with 131I therapy, sister chromatid exchanges (SCEs) and cells with unusually high SCE counts (HFC) were determined in a follow-up study performed with 46 hyperthyroidism and 39 thyroid cancer patients treat...

Michalska, I., 1957: Fungi & bacteria as a factor in the decaying of wool fiber. Acta Microbiologica Polonica 6(2): 171-188

Šturdík, I.; Hlavatý, T.; Payer, J., 2016: Fecal microbiota transplantation. Fecal microbiota transplantation (FMT) is a therapeutic method, in which the fecal microflora from healthy donors is transmitted to the patient to restore the healthy microbial composition of the gut. In the recent years, there is a growing intere...

Harrison, N.L.; Kugler, J.L.; Jones, M.V.; Greenblatt, E.P.; Pritchett, D.B., 1993: Positive modulation of human gamma-aminobutyric acid type A and glycine receptors by the inhalation anesthetic isoflurane. The interactions of the inhalation anesthetic agent isoflurane with ligand-gated chloride channels were studied using transient expression of recombinant human receptors in a mammalian cell line. Isoflurane enhanced gamma-aminobutyric acid (GABA)-...

Hsu S H.; W.S.S.; Wang Y F.; Wong C H., 1990: Lipase catalyzed irreversible transesterification using enol esters xad 8 immobilized lipoprotein lipase catalyzed resolution of secondary alcohols. Tetrahedron Letters 31(44): 6403-6406

Mortensen, H., 1976: The 1975 dairy year: Big increase in foreign currency earnings of the Danish dairy industry; increasing importance of EEC for exports. The foreign currency earnings of the Danish dairy industry rose by about 14% to approx. 4200 million kr in 1975, mainly as a result of the increases in EEC intervention prices for butter and dried skim-milk. Milk production rose 2% to 4700 million...

Zimmerman, E.A., 1977: Localization of hormone secreting pathways in the brain by immunohistochemistry and light microscopy: a review. Immunocytochemical techniques are now being used to localize hypothalamic neurosecretory hormones and related peptides in the mammalian brain. The data are probably incomplete, due primarily to false negative results. A number of previous assumpti...

Hindman, M.C.; Wagner, G.S.; Jaro, M.; Atkins, J.M.; Scheinman, M.M.; Desanctis, R.W.; Hutter, A.H.Jr ; Yeatman, L.; Rubenfire, M.; Et-Al, 1978: The clinical significance of bundle branch block complicating acute myo cardial infarction part 1 clinical characteristics hospital mortality and 1 year follow up. To provide an understanding of the clinical characteristics of patients with acute myocardial infarction (MI) and bundle branch block, experience from 5 centers was accumulated. Patients in whom bundle branch block first appeared after the onset o...

Oh, J-Ryool.; Seo, J-Hyoung.; Chong, A.; Min, J-Joon.; Song, H-Chun.; Kim, Y-Chul.; Bom, H-Seung., 2012: Whole-body metabolic tumour volume of 18F-FDG PET/CT improves the prediction of prognosis in small cell lung cancer. We investigated whether the whole-body metabolic tumour volume (WBMTV) measured by (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) can improve the prediction of prognosis in patients with small cell lung ca...