I am sorry to be blunt but this article was posted at least 5 years ago in a documentary on aljazeera...
https://www.rt.com/russia/539913-chinese-picking-rare-plants/
but I found it sadening and interesting.
remarks :
it isn't our (china) fucking problem what chinese citizens do outside of china. you have laws, rules, regulations, and enforcement.
secondly it is again a big hyprocrisy to say it's chinese citizens going on roaming mission to harvest and deplete bio available nutriment depleting russian vastness. we all know there are a lot of russians having found this a very easy business to harvest and then to sell.
it is the problem of the low hanging fruit.
what I find sad is that some tribes have lived and live there, and where able to grow and maintain the useful living, to see their generation work plundered by some opportunists.
furthermore, the good news, is that irreversibility isn't part of the equation.
finally often, I am repeating plants of the creation, by this and it wasn't clear, I mean agriculture... in the sense plants that can be grown. all those berry , flowers etc can be grown, like wheat.
the problem is the mushrooms. happilly I don't think they harvest yet the soil to sell it.
solution? normally education, care, respect etc, could work, sadly in a world filled by animals, seeking the warm wet holes of mindless females, it's hard to refrain them from seeking what shall be let to rest.
and finally even if most are very stupid the real damage will be done, or more exactly organized by a few dediated individuals.
anyway, it is a brutal article.