More than 2,000 kangaroos will be culled across the ACT over the next three weeks.

Nine nature reserves will be closed from Tuesday until June 12 to allow expert shooters to complete the cull.

The reserves include Callum Brae, Crace, Goorooyaroo, Jerrabomberra, Kama, Mt Painter, Mulligans Flat, The Pinnacle and Wanniassa Hills.

Daniel Iglesias from Parks and Conservation says the high number of roos is damaging the environment.

"We're fortunate in the ACT that we have really good quality natural environment so close to where we live," he said.

"So it's a park service intention to manage kangaroo numbers so that they do not degrade their environment."

The cull is part of the ACT Government's Kangaroo Management Plan and will be conducted according to a strict code of practice endorsed by the RSPCA.

"We have gone out to almost all the areas in which we are going to cull and we have taken an estimate of the total numbers," Mr Iglesias.

"So in those nine areas that we are focusing on we're looking at removing animals which may represent 10 - 15 per cent of the total population."

Strong support

The cull coincides with an Government survey that shows the majority of Canberrans agree that kangaroo numbers must be managed.

Conducted last December, the survey shows 79 per cent of Canberra residents supported kangaroo culling under some circumstances and 70 per cent supported culling for conservation efforts.

That is a 58 per cent increase in support from the previous survey conducted in 2008.

More than 40 per cent of residents were also concerned about the risk of hitting a kangaroo while driving a motor vehicle, with 6 per cent of drivers reporting they had been involved in an incident involving a kangaroo in the last three years.

Mr Inglesias says the survey also shows residents are learning more about kangaroos, with 73 per cent correctly believing numbers of kangaroos are higher in the Territory than in New South Wales.

"The survey found that ACT residents are generally satisfied or neutral regarding the Government's management of kangaroos," he said.

But Mr Inglesias says nearly half of residents did not know kangaroos are not harvested for meat or skins in the ACT.

He says 25 per cent of residents were not happy with how carcasses are removed while 18 per cent thought more should be done to reduce road incidents.