Additives in agricultural plastics can leach into the surrounding soil during use or improper disposal. Their subsequent degradation rates directly regulate whether they persist and accumulate to levels with ecotoxicological effects or are rendered benign. However, which soil properties primarily regulate the degradation of additives remains unclear (e.g. soil carbon, pH, available nutrients, microbial biomass and community st...

The relationships between crown and stem dimensions of trees in two South Island, New Zealand, natural forests were investigated to determine whether they might explain differences in tree species composition estimates based on canopy area and basal area. Dacrydium cupressinum , a common canopy emergent at the lowland podocarp forest site, had the strongest relationship between crown and basal area and a significantly shallowe...

Uncertainty about the amounts of the greenhouse gas nitrous oxide (N 2 O), which arise from N leaching from agricultural soils, predominantly as nitrate (NO 3 – ), is large. To date, the bulk of studies of N 2 O in aquatic systems have relied upon measurement of dissolved N 2 O concentrations at wide spatial intervals (of the order of km) down a stream, river or estuary. When we combined a fine‐scale (m) assessment of N 2 O co...