From ground level, Australia's drought looks like a featureless brown dustbowl, but from the air it transforms into an artistry of colour and texture as the land cracks under a blazing sun.

Circular dry plough tracks resemble the concentric circles in Aboriginal dot paintings that tell of an ancient mythology, starving cattle queuing for feed look like an abstract painting, and their black shadows stretching across the land a surrealist image.

But for farmer Ash Whitney there is no such beauty, just blood, sweat and tears as he struggles to feed his cattle, cutting the drying branches of Kurrajong trees – a last resort during the worst of droughts.

“I have been here all my life, and this drought is feeling like it will be around a while,” says a despairing Whitney, whose property near the town of Gunnedah is on the Liverpool Plains – a usually fertile area now withered, having received the lowest average rainfall in nearly 30 years.

The worst drought in living memory is sweeping parts of eastern Australia, leaving farmers struggling to cope and asking questions about the future.

Cattle farmer Tom Wollaston, born 70 years ago in the same house he lives in today, is afraid for what this drought will mean for his children, who aim to takeover the 2,300 hectare (5,683 acre) property when Tom “hangs up his boots”.

“I can't seem to be able to do anything else apart from just feed, and keep things going. The drought seems to be one step ahead of me all the time. We'll battle it out, but it puts a strain on everyone,” says Wollaston.

His wife Margo says droughts have a very negative impact, not only on her family but on the whole farming community around the nearby town of Tamworth in northwest New South Wales (NSW) state.

Australia's drought – the cancer eating away at farms Show all 16 1 /16 Australia's drought – the cancer eating away at farms Australia's drought – the cancer eating away at farms Farmer Ash Whitney stands atop a tree as he cuts off branches to feed his cattle Reuters Australia's drought – the cancer eating away at farms A cow walks away from a water tank near the town of Tamworth in New South Wales Reuters Australia's drought – the cancer eating away at farms Farmer Scott Cooper drops hay for his cattle next to a dried-up creek on South Park farm Reuters Australia's drought – the cancer eating away at farms Tyre tracks from farmer Jimmie McKeown's truck can be seen on his drought ravaged land near the town of Walgett in New South Wales Reuters Australia's drought – the cancer eating away at farms Dead trees on Scott Cooper's South Park farm Reuters Australia's drought – the cancer eating away at farms Farmer Ash Whitney stands on the back of his truck as he feeds his cattle on his land near the town of Gunnedah in New South Wales Reuters Australia's drought – the cancer eating away at farms An irrigated paddock can be seen next to a ploughed paddock on a farm located on the outskirts of the town of Mudgee in New South Wales Reuters Australia's drought – the cancer eating away at farms A windmill and solar panels on Scott Cooper's South Park farm Reuters Australia's drought – the cancer eating away at farms An old bus used for storing farming equipment stands on farmer Ash Whitney's land near the town of Gunnedah in New South Wales Reuters Australia's drought – the cancer eating away at farms A kangaroo casts a shadow as it drinks from a water tank on Ash Whitney's farm Reuters Australia's drought – the cancer eating away at farms An old Sydney tram sits on Jimmie and May McKeown's land near the town of Walgett in New South Wales Reuters Australia's drought – the cancer eating away at farms Patterns created by a plough can be seen on Ash Whitney's farm Reuters Australia's drought – the cancer eating away at farms Farmer Ash Whitney stands in the middle of a dried-up dam Reuters Australia's drought – the cancer eating away at farms Sheeps eat grain on a farm near Tamworth in New South Wales Reuters Australia's drought – the cancer eating away at farms A road can be seen next to tracks leading to a water tank on Ash Whitney's farm Reuters Australia's drought – the cancer eating away at farms A lone tree stands near a water trough on Jimmie and May McKeown's farm Reuters

“I find droughts a little bit like cancer – it sort of eats away at you, and it just gets drier and drier and more severe and more severe, and impacting on your life a lot worse. I do try really hard to keep the house and the garden clean and green because that keeps your head in the right space at night time”.

May McKeown, 79, and her son Jimmie live on a property near the northwest NSW town of Walgett and say they are extremely worried about the future, having had almost no rain since 2010.

“My great grandfather settled on this land in 1901, and he never had to remove cattle from the paddocks over there,” she says pointing to the west. “But we have had to remove them all and bring them closer to the homestead so we can more easily feed them.”

The farm has made little income in recent years and when they run out of hay in a few months, rising hay prices will leave them in a financial situation her family has never had to contend with in more than a 100 years, she says.

A quarter of Australia's agricultural production by value is grown in NSW and the state government has offered more than A$1bn (£555m) in emergency funding to farmers. It announced the latest tranche – A$500m – on 30 July.

The Australian Bureau of Meteorology says parts of Australia experienced the second-warmest summer (December-February) on record and have just been through one of the driest and warmest autumns (March-May) on record.