Key Liberal National Party members have stood with Queensland farmers and landholders outside state parliament urging a rethink of large-scale renewables projects.

Nationals federal leader David Littleproud labelled the state government's 10-year plan for 80 per cent renewables by 2035 as 'reckless' and called for a senate inquiry due to the damage it may cause to agricultural land.

Alongside Capricornia MP Michelle Landry, the demonstrators petitioned the Queensland government to speak with affected farmers as it rolls out large-scale wind, solar and water projects across regional areas.

David Littleproud says the large renewables projects will destroy farmland and remnant vegetation. (Darren England/AAP PHOTOS)

'Men and women will bear that cost with their land being consumed with solar panels and wind turbines,' Mr Littleproud said.

'Taking out prime agricultural land, taking away our food security, but also taking away remnant vegetation and destroying remnant vegetation.'

The state government has committed to expanding windfarm capacity at the McIntyre precinct southwest of Brisbane.

It will become the largest windfarm in the southern hemisphere and provide up to 2000 megawatts, which is enough energy for 1.4 million homes.

A $14.2 billion pumped hydro scheme in the Wide Bay area and a $12 billion pumped hydro scheme near Eungella are two enormous projects also in the government's pipeline.

Doug Cannon from the Save Eungella group said waterways that host native animals will be destroyed if the pumped hydro scheme goes ahead.

He said approvals stunned locals when the projects were announced last year.

'It just caught us all out of the blue and it's just shattered our community right from when it was announced,' he said.

'We're here today to make a stand and to let all the pollies know that we're not just going to take it lying down, that we're going to fight to the bloody end.'

A spokesperson for Queensland Energy Minister Mick De Brenni said the government will continue to work with communities to minimise any impact on fauna and flora areas, and agricultural land.

'Not acting on climate change would leave future generations forced to face unprecedented natural disasters, and would destroy farmland, rainforests and animal habitats,' they said.

The government has committed to meeting with stakeholders and community representatives in the respective regions.