Winter cover crops and no-till promote soil macrofauna communities in irrigated, Mediterranean cropland in California, USA
作者： Kent M. Daane , Steven J. Fonte , Jeffrey P. Mitchell , Anil Shrestha , Courtland Kelly
DOI: 10.1016/J.APSOIL.2021.104068
关键词:
摘要: Abstract Cover crops and reduced tillage are two elements of conservation agriculture with potential to support larger more diverse soil biological communities. Soil macrofauna can be indicators quality regulate multiple functions, but their response cover crop adoption in temperate regions is not well studied. We evaluated communities related metrics a 16-year winter trial located the San Joaquin Valley California, USA. The most abundant taxa were Coleoptera (beetles) Lumbricidae (earthworms), average densities ranging between 5 318 beetles m−2 65–480 earthworms depending on sample date treatments. Overall abundance increased by 93% addition rotation, 50% elimination tillage. Taxonomic richness 48% treatments managed without tillage, though there was no effect under standard Macrofauna positively total carbon, water infiltration, aggregate stability. community composition best explained stable fraction, usage. Agricultural management practices that foster may biodiversity improve environmental outcomes critical for sustainable food production.
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