Abstract Objective To assess government actions to improve the healthiness of food environments in New Zealand, based on the healthy food environment policy index.Methods A panel of 52 public health experts rated the extent of government implementation against international best practice for 42 indicators of food environment policy and infrastructu
Biochar boosts tropical but not temperate crop yields
Applying biochar to soil is thought to have multiple benefits, from helping mitigate climate change [ 1 , 2 ], to managing waste [ 3 ] to conserving soil [ 4 ].Biochar is also widely assumed to boost crop yield [ 5 , 6 ], but there is controversy regarding the extent and cause of any yield benefit [ 7 ].Here we use a global-scale meta-analysis to s
How spatial heterogeneity of cover affects patterns of shrub encroachment into mesic grasslands.
We used a multi-method approach to analyze the spatial patterns of shrubs and cover types (plant species, litter or bare soil) in grassland-shrubland ecotones.This approach allows us to assess how fine-scale spatial heterogeneity of cover types affects the patterns of Cytisus balansae shrub encroachment into mesic mountain grasslands (Catalan Pyren