tag:blogger.com,1999:blog-5104479.post5890931421032590926..comments2023-05-27T23:20:32.194+10:00Comments on Marco's Blog: Must BLOGMarco Parigihttp://www.blogger.com/profile/00702055111711651319noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5104479.post-28705793760291298682010-05-13T15:08:48.466+10:002010-05-13T15:08:48.466+10:00That is probably a fair assessment - especially fo...That is probably a fair assessment - especially for the Darling. To look at a part of the Darling that has remain unchanged, see the Paroo catchment, which is claypan overflows, swamp and bush - rarely reaching the Darling. The Cooper catchment is also similar. The "usage losses" to the flow are really only replacing the "transmission losses" of the weird somewhat distributary patterns of drainage before human intervention.Marco Parigihttps://www.blogger.com/profile/00702055111711651319noreply@blogger.comtag:blogger.com,1999:blog-5104479.post-82918055141323088382010-05-13T13:06:43.837+10:002010-05-13T13:06:43.837+10:00I am still thinking about how land use in the uppe...I am still thinking about how land use in the upper catchments areas is affecting/may have affected the Murray-Darling.<br /><br />First European contact with the Darling was of a river too salty to drink. Maps of up here at the same time show forested country with lots of swamps along the headwaters.<br /><br />Late 19th century - massive landclearing everywhere, no more swamps, increased runoff, golden age of navigation and pastoral development on the Murray-Darling.<br /><br />From then on we have an ever improving effort by landholders everywhere upstream to keep the rain where it falls... as I've said before, there are so many on-farm catchments it a miracle anything gets to the rivers... so my postulate is that both the historical wet times and the present dry times are anthropogenic.Chris Fellowshttps://www.blogger.com/profile/03020350770567584929noreply@blogger.com