Rainfall redistribution under native shrubland and avocado orchards in central Chile: effects of vegetation cover replacement
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https://orcid.org/0009-0005-9885-2256
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Rainfall interception plays a key role in regulating water inputs in semi-arid Mediterranean ecosystems. This study evaluated rainfall redistribution under Vachellia caven (native shrubland) and Persea americana (orchard) in central Chile using rainfall simulations at two intensities (8 and 25 mm h⁻¹). Throughfall (TF), stemflow (SF), and interception (I) were measured in three individuals per species. Rainfall intensity was the main factor controlling redistribution, with significantly higher TF and net precipitation under high intensity (P < 0.01). Interception tended to be higher in V. caven (up to 87%) than in P. americana, although differences were not statistically significant. Stemflow contributed less than 1% of total precipitation in both species. These results highlight the dominant role of rainfall intensity over species traits in rainfall partitioning, with implications for soil water inputs and hydrological processes in semi-arid environments.
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Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
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