Sediment properties and CO2 efflux from intact and cleared temperate mangrove forests

摘要: Abstract. Temperate mangrove forests in New Zealand have increased area over recent decades. Expansion of temperate mangroves is associated with perceived loss other estuarine habitats, and decreased recreational amenity values, resulting clearing forests. In the tropics, changes sediment characteristics carbon efflux been reported following clearance. This first study (Avicennia marina) investigating impact on CO2 biotic abiotic factors. Sediment rates from intact (168.5 ± 45.8 mmol m−2 d−1) cleared (133.9 37.2 are comparable to measured tropical We did not find a significant difference between Pre-shading for more than 30 min prior dark chamber measurements was found no effect efflux. suggests that continuation photosynthetic uptake by biofilm communities occurring after placement chambers. Rather, above-ground biomass, temperature chlorophyll concentration were main factors explaining variability The influencing forest sites organic concentration, nitrogen grain size. Our results show greater consideration should be given regarding rate released clearance relative contribution global emissions.