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Positive biodiversity–productivity relationships have been found in biodiversity field experiments of grasslands, forests and natural terrestrial ecosystems, where diversity effects were separated by complementarity (CE) and selection effects (SE). However, we know little about how CE and SE are related to root traits and root dissimilarity.
A 4‐year field experiment was carried out with a split‐plot...
Complementarity (CE) and selection effects (SE) have been either invoked to explain the positive diversity–productivity relationship in natural and semi‐natural ecosystems. Few studies have, however, separated selection and complementarity effects in economically valuable intercropping systems, which receive significant nutrient inputs throughout the growing season.
We performed a 2‐year field...