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Aussie environment destruction
"FarmI" ask@itshall be given wrote in message
... The importation of exportation of ANY products on or off the land on which it is raised or grown is mining. If you eat meat or vegetables that are not grown on your own land, or wear clothes that are not produced from your own land, you are involved in mining the fertility belonging to someone else. We all do it and have done since time immemorial. I don't know anyone who can only survive on the products of their own land or return all their wastes to their own land. If you have been reading this ng for some time, you may recall that at one stage Otterbot made the comment that there is no such thing as unproductive land. She was (generally) right because any land can be made productive but it at the cost or mining somewhere else for nutrients. that's right, but can i point out: i use inputs that other people don't WANT! (and are free as well :-) so what you say is 100% right, & i'm getting off the track a bit, but i'm profiting from other peoples' waste & more peeps would be better off to do that (imho). it's amazing. frankly i think that as well as creating less "waste" in future, we will all be learning about how other peoples' "waste" is a goldmine. Tree cropping is perhaps the most "sustainable" form of cropping but it is dependant upon the soil and I have no doubt that there are some areas of Oz that could be very much depleted after a single tree harvest. I can't think of any area off the top of my head but I don't know about all our timber growing areas. He also described in some length the salinisation of your soils. I knew about it however the author described in length how the salt pans came to exist, how irrigation can cause the salt level to rise and dryland salinisation results from leaving productive land bare for much of the year allowing rain to wash salts through waterways or raise it to the surface. The soluable salts then infest waterways. If he wrote that about dryland salinity, then he doesn't know what he's on about. Dryland salinity and salinity on irrigated land have differing causes, as is perhaps the salinity of WA (which I have read has largely been caused by millenia of onshore winds bringing in ocean salt which has then settled on the land). That latter explanation could be pure crud, but I've certainly read of that being an explanation for WA. But having said that, European farming techniques did not suit most of this country (and certainly not the dry interior) and it has taken till recent decades for that fact to become evident. Dryland salinity is being combatted effectively but slowly and it will be an ongoing battle for decades. I know very little about salinity on irrigated land. do do do read "back from the brink" by peter andrews. not least because he explains this. it's a top read, i'm telling you :-) kylie |
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