Abstract

Conversion of primary forest into oil palm plantations is common in tropical countries, affecting soil properties, ecosystem services and land-use management. However, little is known about the short-range spatial soil distribution that is important for soil scientists, ecologists, entomologists, mycologists or microbiologists. In this study, seven soil properties (pH, EC (mu S/m), P (mg/kg), NO3- (mg/kg), N%, C% and C:N) were measured to quantify the spatial autocorrelation across primary forest, selectively logged forest and oil palm plantation in Sabah, Malaysian Borneo. Local variograms were calculated (range similar to 5 m) to determine the short-range variation, and a decision tree as well as principal component analysis were implemented to determine if the overall (global) mean differed between land uses. As hypothesised, oil palm soils deviated the most from primary forest soils, which had more fluctuating variograms and in general, a shorter range. Oil palm plantations also showed a difference in the global mean except for electrical conductivity. Selectively logged forests also differed in their short-range spatial structure; however, the global mean and variance remained similar to primary forest soil with the exception of labile phosphorus and nitrate. These results were attributed to initial plantation development, removal of topsoil, fertiliser application and topography.

Keywords

Borneo; land-use change; logging; oil palm; SAFE project; soil properties; spatial autocorrelation

Published in

Journal of Tropical Ecology
2023, Volume: 39, article number: e36
Publisher: CAMBRIDGE UNIV PRESS

SLU Authors

• Flynn, Trevan

  • Department of Energy and Technology, Swedish University of Agricultural Sciences
    
  • Biology Centre of the Czech Academy of Sciences

UKÄ Subject classification

Forest Science
Soil Science
Environmental Sciences related to Agriculture and Land-use


Publication identifier

DOI: https://doi.org/10.1017/S026646742300024X

Permanent link to this page (URI)

https://res.slu.se/id/publ/126792