Rotation-age effects of subsoiling, fertilization, and weed control on radiata pine growth at sites with contrasting soil physical, nutrient, and water limitations

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dc.contributor.authorRubilar, Rafael
dc.contributor.authorBozo, Daniel
dc.contributor.authorAlbaugh, Timothy
dc.contributor.authorCook, Rachel
dc.contributor.authorCampoe, Otavio
dc.contributor.authorCarter, David
dc.contributor.authorAllen, H. Lee
dc.contributor.authorAlvarez, Jose
dc.contributor.authorPincheira, Matias
dc.contributor.authorZapata, Alvaro
dc.date.accessioned2025-01-20T20:08:13Z
dc.date.available2025-01-20T20:08:13Z
dc.date.issued2023
dc.description.abstractAlthough short- and medium-term responses to early silvicultural treatments have been documented, few studies show productivity gains or losses throughout a rotation across a range of soil types and resource availability. We evaluated the rotation length productivity responses of radiata pine to subsoiling, fertilization, and weed control in dry sand (DS), red clay (RC), and recent volcanic ash (RV) soils representing a gradient of physical, nutrient, and water limitations. Stands were planted in 2000 in a split-plot factorial design, with soil preparation (subsoiling vs. shovel planting) as the main plot and fertilization at planting (B only vs. NPKB) and weed control (none vs. 2-year banded application) as factorial randomized treatment plots within the main plots. Annual diameter at breast height, height, survival, and cumulative volume responses were measured. The rotation-age results for cumulative volume showed that early gains from weed control were maintained through at least 15 years of age. At rotation age, weed control increased the cumulative volume at the DS site (56 m3/ha, 20% gain), and the response over time was maintained at the RC site (28 m3/ha, 8% gain), whereas the volume was reduced at the RV site (-36 m3/ha, 7% loss). Fertilization resulted in the greatest response at the RC site (29 m3/ha, 8% gain); there were small responses at the DS site (5 m3/ha, 2% gain) and negative responses at the RV site (-18 m3/ ha, 4% loss). Interestingly, subsoiling resulted in null or negative responses at all sites, and negative effects increased over time, with volume responses ranging from -4 m3/ha (1% loss) and -27 m3/ha (7% loss) at the DS and RC sites, respectively, to -116 m3/ha (21% loss) at the RV site. Carrying capacity was reached at midrotation at the RV site and resulted in negative treatment effects at rotation age, suggesting the need for thinning or a younger harvest age at this site. Given the negative or null effects of soil preparation, a better understanding is needed for how this silvicultural treatment is affected by soil type and soil strength.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.foreco.2023.121213
dc.identifier.eissn1872-7042
dc.identifier.issn0378-1127
dc.identifier.urihttps://doi.org/10.1016/j.foreco.2023.121213
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91881
dc.identifier.wosidWOS:001040437000001
dc.language.isoen
dc.revistaForest ecology and management
dc.rightsacceso restringido
dc.subjectPinus radiata
dc.subjectProductivity
dc.subjectSilvicultural treatments
dc.subjectLong -term response
dc.subjectSelf-thinning
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleRotation-age effects of subsoiling, fertilization, and weed control on radiata pine growth at sites with contrasting soil physical, nutrient, and water limitations
dc.typeartículo
dc.volumen544
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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