Eight men died on Friday, when a controlled explosion underground ruptured a water source, flooding the mine in Kratie province.
The new discoveries add to the almost 1,400 new species identified in the same region from 1997 to 2009.
Prime Minister Hun Sen has said he wants the country to export 1 million tons of milled rice by 2015.
The petition comes just a week before ministers of Mekong River Commission member states, are to meet to make a final decision.
Cambodian efforts more than a decade ago helped lead the way for the Ottawa Treaty, which later won the Nobel Peace Prize.
Cambodia is hosting the 11th gathering of 158 state parties who signed an international landmine ban in 1997.
Landmines have killed an estimated 1 million people in the last 10 years.
Thailand exports up to ten million tons of rice per year, one-third of the total global market.
Nearly 300 people living near Prey Lang forest, have formed a community policing effort to stop what they said is illegal deforestation.
At last count, nearly 400,000 hectares of crops had been damaged.
About 400 residents gathered at the New Paradise Restaurant on Oct. 28, raising nearly $16,000 in donations.
There are no reliable estimates of how many people are stranded in the scores of flooded communities in Bangkok and areas north.