Across Australia the water cycle is broken. Extreme events, hot days, floods, droughts have increased. The pattern and nature of rainfall has changed. Particularly of the winter rain. What has caused this change, and it is not Greenhouse Gases, it is how water is held on the land which causes the loss of the small or local water cycle. This directly relates to how we have managed agricultural land in the last 30 years. The science of landscape hydration and the process of reversal is discussed. Particularly attention will be paid to the process of the impact of biology on the intensity and amount of rain.
Landscape rehydration has occurred both here and around the world. Lessons from these examples are presented with particularly regard to their biogeomorphological impact on hydration.
In this HydroTerra webinar, Phil Mulvey presents the argument that to better manage floods, we must focus on the upper catchment to reduce rainfall intensity and increase infiltration; prioritising water retention, slowing river flow, and recharging alluvium.
Watch on Youtube
Are you stuck in the “lime every few years” cycle? Phil Mulvey joins Tim Thomposon to unpack how pH really works — from aluminium toxicity and CEC (cation exchange capacity) to buffering and why plant diversity can stabilise pH and rebuild soil structure.
Watch on Youtube
Starting at 48:10, Phil joins the BrisScience panel as they celebrate the International Year of Soils with a nitty gritty discussion on: ‘Digging deeper…can Australian soils really feed the world?’
Watch on Youtube