235
China Planted 78 Billion New Trees, and Seriously Messed Up Its Water Cycle
(www.popularmechanics.com)
A community to post scientific articles, news, and civil discussion.
dart board;; science bs
rule #1: be kind
Wait.... 78 Billion trees. As in with a 'b' billion? In all seriousness, how?
In Estonia we plant about 20-40 millions of trees every year.
RMK ( State Forest Management Center) alone plants about 20-25 million trees every year.
And we are nation with 1,3 million people. So for China that number over the years isn’t big at all.
I always laugh when in the western news there is some organization, what makes big words that they planted 2 million trees and if that is something of a big achivments what should be boasted around the news.
I should check out Estonia
It's since 1980, they've had almost half a century to do it.
That's still 1,695,652,173 trees per year (78,000,000,000/46 years).
"In all seriousness, how?"
The us plants about 2.3 trillion corn plants per year. 25,000 per acre, 95,000,000 acres. Considering they plant 68,000,000 trees per year just for paper, in the US, the numbers aren't shocking. Worldwide tree nurseries probably dwarf that 1.6 billion, maybe.
It's not vastly more than every Chinese person planting 1 tree a year. If you pay people to plant 10 trees a day, 5 days a week, 48 weeks a year you only need to employ one person in every 2400 to get close.
That's still over a billion trees a year. Actually that's over 1,500,000,000 trees a year. Again...HOW?
And this begs a side question. Out of those 78 Billion trees, how many are alive now?
Just a matter of scale. Every seventh person lives in China.
Or to recontextualize: The article talks about a time span of around 45 years. That's around 1.7 billion trees. Remember, that's an english (short) billion, 1700 million. (In other languages a billion is a million millions, and not just a thousand millions.)
If a worker can plant 20 trees a day and works 200 days a year, that means around half a million people are more than enough to do it. In a country with around 1400 million people, that's 0.035% of the population, or roughly one in 3000 people.
Suddenly, it's not all that crazy anymore.
Are we talking 10 to the 9th power or the 12th?
I also did some reading up on this. I live in British Columbia and reforestation is a big deal. Apparently a tree planter can plant 2,000 seedlings a day. More if the terrain is good and they're experienced. So yeah, I can see it now.
Though I still wonder about the survival rate of the plantings, but How question is indeed answered.
Popular Mechanics is US-based, so they use short billions: 1bio = 1 000 000 000.
You are right, long billions (1bio = 1 000 000 000 000) would be a lot more. Though even that would still be possible, but then ~35% of the chinese population would have to be employed in planting trees.