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.
Phil Mulvey joins Tim Thompson in the debut episode of Digging Deeper to discuss how can we restore fragile, sandy soils and stop erosion in its tracks.
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Soil pH affects everything—from plant growth to stock health. But many farmers don’t realise how dramatic the impacts are… or how to test for it properly. In this episode, we dive into the fundamentals of soil pH, how it works, and how to measure it right on your farm.
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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.
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