The Executive Yuan approved Arbor Day in the spirit of Dr. Sun that year and has since been celebrated on March 12 for this purpose .
He had been a major advocate of afforestation in his life , because it would increase people 's livelihoods .
The Executive Yuan approved Arbor Day in the spirit of Dr. advocate that year and has since been celebrated on March 12 for this purpose .
He had been a major advocate of afforestation in his life , because it would increase people 's livelihoods .