A group of traditional Aboriginal landholders has won a South Australian land care award for its work in reducing the numbers of feral animals and pest plants, and revegetating with native trees.

The combined Aboriginal Lands Trust, Maralinga Tjarutja and Anangu Pitjantjatjara group has won Landcare's Indigenous award for its land management document.

The general manager of the Aboriginal Lands Trust, John Chester, says it is a fitting reward for increasing the awareness of land management issues within aboriginal communities.

"Aboriginal lands is one of the most severely degraded lands throughout South Australia due to lack of resources and we've been working very hard to work with agencies to address those issues," he said.

A world-renowned conservation reserve in the Riverland also won a land care award.

Gluepot Reserve, north of Waikerie, is home to 17 threatened species of birds and a diverse range of reptiles and bats.

The 54,000 hectare reserve, which is managed entirely by volunteers, was presented with the award last night.

Gluepot chairman Duncan MacKenzie says the award is a reflection of the dedication of its volunteers.

"It's one way of saying a really big thankyou to every volunteer, to say this is what you've achieved, this is what you've done, you've again put the reserve on the top," he said.

"This is great for the Riverland it really is. There is so much potential for nature based and eco tourism in the Riverland and hopefully Gluepot reserve can lead the way."