A Waypoint for Google Earth. Can you figure what this is ?
Submitted: Tuesday, Jun 30, 2009 at 19:14
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Member - Willie , Sydney.
Please have a look here. Can you tell what all these lines are out here in
the desert ? Looks like mining remediation work, but I don't think so .
Maybe an ancient alien golf course !
22°58'50.45"S
120°13'1.43"E
Thanks,
Willie.
Reply By: equinox - Tuesday, Jun 30, 2009 at 20:33
Tuesday, Jun 30, 2009 at 20:33
Hi again Mike,
An extract from Curtin Uni's Mulga Research Centre Annual report of 2003 may shed some light on the matter:
Heading: Rehabilitation of degraded grasslands at Ethel
Creek station,
Pilbara, following mechanical treatment after overgrazing.
Degraded areas of Ethel
Creek station were mechanically treated and seed of Cenchrus ciliaris (buffel grass) and Cenchrus setigerus (
birdwood grass) were sown over the period 1992-1998. These rehabilitated areas of the Fortescue floodplain are sampled periodically to examine persistence of species, density and cover following soil ripping. Untreated controls are used to contrast natural variation with any treatment effects. The long-term objective is to return formerly degraded areas to cattle grazing on a sustained basis.
In 2003, perennial grass density continued to increase at most rehabilitation sets, largely attributed to the spread of Cenchrus spp, the dominant species present in the study area.
This partly reflects the unwillingness of cattle to eat these species. Salsola tragus, an indicator of poor rangeland condition, has decreased substantially in importance since assessments commenced. Over time, mean plant density and cover have generally increased, but have fluctuated with rainfall levels. The status of treated sites in 2003 indicated that treatment effects have been long-lasting in reversing the degraded quality of disturbed sites. Mechanically treated sites were generally in better condition than the adjacent control transects. Higher than average rainfall in the study area since 1995 (with the exception of 1998) have largely influenced improvements in site condition, but water ponding has clearly allowed plants in treated areas to benefit longer after rain from enhanced soil moisture. The primary goal of applying the treatments to ensure pasture improvement has been achieved, and overall, the rehabilitation at Ethel
Creek station has generally been successful. It is recommended that seed of some native perennials be sown in areas inhabited by Cenchrus spp to determine whether they can establish among it. For some sites, further monitoring is recommended, possibly coupled with re-treatment.
Prof J. E. D. Fox, Mr T. Carlino, Mr R. Thomas, Ms E. Bedells and Ms D. Cocquyt.
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Follow Up By: Member - Willie , Sydney. - Tuesday, Jun 30, 2009 at 21:58
Tuesday, Jun 30, 2009 at 21:58
Well done Alan. Thanks for that. I spend hours on Google Earth and often come up with stuff that seems wrong. That contouring certainly looked "wrong".
Cheers,
Willie.
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