On 10.03.19 20:02, Marshland Engineering wrote: > Hi Erik > > I know you are up to eyeballs at the moment, but here is a really interesting > TED talk. > > https://www.ted.com/talks/allan_savory_how_to_green_the_world_s_deserts_and_reverse_climate_change#t-1320745
Either my one HDMI monitor has decided to intermittently superimpose horizontal and vertical bars, or my one PC fast enough to handle video is doing it. As the cursor's gone when that happens, my money is on the PC. Rats, it's just out of warranty. > Can this work in Aus ? China is doing some great work, but we're mostly covering the most fertile and best watered land with houses and bitumen, as cities grow where British colonists found the best land, then multiplied. Melbourne takes water from halfway across Victoria to water lawns and flush toilets, while dumping its own rainfall into stormwater drains, then out to sea. (The Thomson dam provides 40% of the city's water, instead of being available where the rain fell.) We have vociferous greens who mandate that considerable quantities of fresh water in storage dams are diverted from agriculture and flushed out to sea, in order to maintain "environmental flows" to keep fish happy. IIUC, Antarctica is the only continent dryer than Australia, so greening needs to creep in from the coast. Regeneration of large swathes of forest normally brings rain, not just due to reduced hot updraught and transpired moisture from deep down in the soil profile, but also due to emitted volatiles. Putting the forests back has to help. Intensive agriculture has only been practiced for 200 years here, and a lot has been learned. But climate change is forcing more than gradual adaptation. Most graziers have drastically destocked in the last two years, not just to preserve the land, but because there has been insufficient supplemental feed available. Some are planting tens of thousands of trees, but it is uncommon. Our 308 Ha. is quite sandy, with some sodic clay hardpan (needing application of a lot of gypsum), and has very limited stock carrying capacity when it's dry, which seems to be permanent now. For several years now, it's been left to the wildlife, and they're keeping the cleared paddocks like billiard tables in their search for sustenance in the drought. My 35 year old native plantations fringe the paddocks, adding to the 200 Ha. of bulk forest. I've form pruned to 6m, so in another 50 years there'll be some fine redgum timber for future generations. Slow growth timber from low rainfall areas is the finest you can get, but not economic for the producer. Sorry for the tangential reply. I'll have to find out which media item needs fixing/replacement. > PS I'm originally from Africa, Zambia. So long as the rainy season continues to arrive, I figure they're in a better climatic position than most parts of Australia. Erik _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
