By 2017-18, that ratio has become about six to one in favour of church and other heritage work.

As a contrast, during 2009-2011 – the final three years of the previous Labor state government - church restoration work attracted only about 5 per cent of the community heritage grants.

In absolute terms, the sum spent on community environmental grants - to groups such as Koalas in Care - dropped by two-thirds to from $409,967 in 2016-17 to only $145,523 in 2017-18.

Environment grants accounted for 27.7 per cent of the total in 2014-15 but only 4.7 per cent by 2017-18. (The share excludes grants for the Home Energy Action Program which started in 2015 but were transferred away from OEH in 2017.)

Likewise, Aboriginal Heritage grants shrank as a percentage in each of the past four years from 21.2 per cent of the total in 2014-15 to 8.7 per cent by the last financial year.

It remains unclear whether the restructuring of the department since the reelection of the Berejiklian government last month – including the abolition of OEH itself – will affect future distribution of such grants.

Most of OEH's functions have been absorbed by the new Planning and Industry cluster headed by Planning Minister Rob Stokes. Dr Stokes, a former environment minister, will oversee several several ministers including Matt Kean, who takes on the new Energy and Environment portfolio.

Mr Kean was approached for comment by The Sun-Herald.

An OEH spokeswoman said the annual reports represent "a narrative summary of performance, outlining key highlights rather than detailing an exhaustive list of every grant awarded during the year".

"In isolation [analysis from the annual reports] would present a misleading, statistically inaccurate picture" because not all of all the "broad range of grant programs" provided by the OEH and the Environmental Trust (ET)  are included.

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For instance, OEH's total outlay to councils, schools, research institutions and other groups totalled $438 million over the past four years for various environment and heritage projects.

But Kate Smolski, chief executive of the NSW Nature Conservation Council, said the shift in community grants was "par for the course from a Coalition government that has been at war with the nature since it came to power in NSW in 2011".

“This is the same government that has twice downgraded the status of environment department, slashed national parks funding, legalised a new wave of deforestation and nudged koalas closer to extinction," Ms Smolski said, adding that if the government were serious about making the environment a priority this term, it would need to "substantially increase funding for environmental programs”.

Penny Sharpe, Labor's acting leader and environment spokeswoman, said "weaker laws and funding cuts have meant that environmental and heritage protection come last in the Berejiklian government’s priorities”.

“An urgent priority must also be the finalisation of standalone aboriginal and cultural heritage laws backed up with adequate funding support to protect, conserve and promote aboriginal cultural heritage across the state,” Ms Sharpe said.

Cate Faehrmann, Greens environment spokeswoman, said that "with more than one thousand native animals and plants threatened with extinction in NSW, the government should be pouring more money into protecting our environment, not cutting off the flow".

“The new Environment Minister Matt Kean should prove he genuinely cares by ensuring the majority of this vital funding stream goes to the environment as was originally intended," she said.