Agricultural Greenhouse Gases (GHGs)

What costs might pastoral farmers be up for and how can they manage their risk? An information brochure summaries four years of work on modelling GHG and cash flows for a range of dairy and sheep and beef farms. The work has been done in conjunction with a number of research partners through a number of projects, including for the New Zealand Agricultural Greenhouse Gas Research Centre (NZAGRC). It also discusses forestry as a carbon sink.

Reducing contaminants from dairy-farm laneways

Dairy farm laneways adjacent to drains pose a risk as a potential source of contaminants to water. Laneways represent locations with large amounts of effluent loading. Furthermore, cow movement across a laneway of compacted gravels is likely to mobilise fine sediment, increasing the possibility of transport into waterways via runoff during rainfall events. Despite the risk of contaminant losses from laneways to nearby waterways, few studies have quantified the effects of good riparian practices to reduce loading of nutrients, sediment and faecal material from surface runoff.

Guide to constructing a wetland on a farm for nitrogen removal

Groundtruth Ltd have produced a guide to constructing wetlands on farms in conjunction with Sustainable Wairarapa Incorporated.  Dairy NZ and Pamu supported a Sustainable Farming Fund project which assessed the cost-benefit of various on-farm activities for removing contaminants from waterways and improving biodiversity.  Monitoring over the last 3 years has shown that a wetland can be very cost-effective at removing nitrogen from farm drainage water.  If you are interested to learn mor