Soil moisture

Soil moisture on 31 August

Pockets of drier than normal soils were evident at the end of August in Bay of Plenty, Hawke’s Bay, Marlborough, Canterbury, and in inland and coastal Otago. Rainfall was below average for both July and August in northern and central areas of the South Island, resulting in lower than normal subsoil moisture content in Marlborough and mid and south Canterbury.

Soil moisture deficit in the pasture root zone at the end of August (right) compared with the deficit at the same time last year (centre) and the long term end of August average (left). The analysis is done for an average soil type where the available water capacity is taken to be 150 mm.