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Matt meets the farmer using a no-till method of raising crops to help save our soils, while Ellie is on the trail of Shropshire's Clun sheep.
Matt Baker, John Craven and Margherita Taylor mark the 70th anniversary of the creation of our national parks.
Matt is in Panshanger Park in Hertfordshire, seeing how an old quarry has become one of the best places for wildlife in the county.