In August, I moved down to Australia from Glasgow, Scotland, to start the next stage of my PhD, studying landscape change of the Tablelands of southeastern Australia. The crucial part of my research is based on the samples I collect in the field, which I was finally able to start doing in October 2012, after a preliminary trip in August to scout out potential sampling sites.
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| View from the lookout in Namadgi National Park in the Australian Capital Territory |
The first trip in August was fairly relaxed. My supervisor from Glasgow came down for the week and we were joined by my supervisor from Australia and a local colleague of my Glasgow Supervisor's for a few days each. The Tablelands is a landscape dominated by rolling hills - sometimes mountainous - with gum tree forests and flat open grazing pastures in the valley bottoms. They spread a good distance, over 500km from north of Bathurst to south of Cooma, and almost 200km wide from Goulburn to Gundagai - roughly. When the European Australians first arrived to the Tablelands, the valley bottoms were soggy swampy meadows with sometimes large ponds in them. Water flowed through the landscape, though not in defined channels. With the introduction of grazing agriculture came lots of deforestation, which, paired with Australia's variable drought-dominated and flood-dominated climate regimes, led to the incision of these waterways into the valley bottoms, carving out deep gullies. As gullies were eroded in some parts of the landscape, the sediment released from them was deposited further downstream, covering the swampy meadows. Whether the cause of this widespread landscape degradation came from introduced grazing agriculture, from natural cyclical processes that happened to start at the same time as European grazing, or from fire-agricultural methods employed by Aboriginal Australians, we cannot be sure, and that is the purpose of my research.
So fieldwork involved me, and one of a handful of great field assistants, going into these gullies and collecting sediment samples from the gully walls and later I will determine burial ages for the sediment which will help me interpret when widespread gullying and sediment deposition on the Tablelands began.
While this region of Australia is arguably not all that scenic - there are no rough coasts, rainforests, mountains, or outback deserts - the rolling hills are beautiful and we frequently drove in and out of Australian bush land which provided plenty of opportunities to see amazing Australian wildlife.
In August, I was more focused on tuning my eyes to what was happening on the landscape. At one of our first stops, near Bevendale, we visited a site my Glasgow supervisor had previously worked on. A few years ago, to get to the landowners' house - we always asked for permission to gain access to land and let them know we were there - you'd just drive over a bridge spanning a 5 metre-deep gully. My supervisor was shocked to see when we got there that the bridge had been totally wiped out. We forded the stream and when we found the homeowners, they told us that the bridge had been washed out by the biggest flood they'd experienced. The water level rose up those 5 metres to the bridge and just plucked it up, carrying it downstream. This was not in any sort of gorge or steep landscape, nor was the upstream area all that large, but seasonally, this part of Australia can be subject to massive floods!
A few days later we visited another site along a stream called, Birchams Creek, and it ended up being one of my favorite sites that I returned to a few times. At this site, just 40 minutes outside of Canberra, the Australian capitol city, I was guaranteed to see at least 20 (sometimes upwards of 50+) kangaroos! Australians kind of see kangaroos like we, in Michigan, see deer. They are everywhere and often end up crushed by cars on the side of the road. But here, back in the countryside, they were everywhere and each time I visited, I would see them hopping up and down the hills, in and out of the paddock fences, and sleeping under trees in the middle of the day. So cute to see, too, when the little joeys are sticking their heads out of the mothers' pouches!
Overall, August field work was kind of dull - more driving than work. But I did get one experience most Australians do not: I was in the middle of a snowstorm! It was the second to last day of field work and we'd kind of exhausted the options of places to visit, so my supervisors and I took a drive to a peat bog on the southern slopes of the Brindabella Range which makes up the border between the Australian Capital Territory and New South Wales. We drove up through the mountains through Namadgi National Park, through a snow gum forest, and stopped at a scenic overlook where you could see the flat valley bottom below, surrounded by steep mountains. It was windy and cold, so we didn't stay long and kept driving down the other side of the mountains. We stopped at the Yaouk Peat Bog on the other side of the mountains and discussing how we might use it in my research and while we were there it started to snow. It wasn't really a blizzard, that would be exaggerating, but there were plenty of small specks of snow falling all around us as we got back into the car and drove toward Adaminaby for lunch. By the time we arrived and sat down in the small town's cafe, it was near blizzard conditions - big wet flakes of snow were swirling around outside and even the woman who ran the cafe ran outside with her camera because she had never seen anything like it! It cleared up enough as we left for me to see the Big Trout (Australia, like the US, is proud of their BIG roadside attractions) but then we drove back into the storm as we headed to Cooma and up to Queanbeyan.
October eventually rolled around and it was time to head back out into the field to actually collect some samples. I had two field assistants lined up to help me out over the two and half weeks of work and they were both great (we will call the first Britney and the second Tracy). Both were gung-ho undergrads who wanted to get experience with field work and couldn't have been better suited for the work. Britney was more interested in biology but hadn't had any field experience before and was curious to know what it was like and while I got excited about sediment and rocks she got excited about all the different animals we came across from sheep and horses to cats and puppies. Tracy was a seasoned environmental science undergrad who had a keen eye for approaching geologic problems and often kept me on track for what I was supposed to be doing. Both were Australians, which was important for me because I would be talking to landowners, asking their permission to go on their land, and knowing how suspicious Americans can be about people coming on their property, I didn't want to say the wrong thing or ask the wrong question, so it was good to have Britney and Tracy as field assistants. Also, both had excellent taste in music which was important for the long car rides.
Britney and I went into the field first, sticking around the Goulburn area. We visited a few streams nearby and collected samples, and scoped out a few more sites I could potentially come back to. But after a few days, Britney had to be back in Sydney so we drove the two hours back, I stayed the night in the city, and then picked up Tracy the next morning and drove back out to the field. Tracy and I went a bit further south, more toward Lake George - an inland lake with a large surface area (so it looked big) but a small depth of only 2 metres (so there wasn't much water). While at one of my sites, situated right next to a wide and long section of the stream that was more like a pool, we saw a few splashes and this little brown-backed critter with its nose just sticking out of the water, zig-zagging back and forth across the pool, spending a lot of time under the banks where sticks and weeds were all mashed together. It was mid-day, and though we both knew that platypuses are typically out in the evening and at night, we were sure that is what we saw! It was difficult getting photos of the animal (which I desperately wanted!) and when we asked some landowners further downstream if they ever saw any platypuses we were discouraged to hear that they'd only seen one platypus, thirty years before. They tried convincing us we saw a water rat, but the animal we saw did not have the white fur on its back like a water rat would have had and water rats swim on the surface whereas this critter spent most of its time underwater. Though unconfirmed, we decided that we had been some of the lucky few Australians who have seen the elusive platypus out in the wild and I got to check another Aussie animal off my list!
Tracy couldn't stay more than three days in the field, so off we drove, back to Sydney, where the next morning I exchanged field assistants again and Britney and I headed back toward Goulburn, but kept driving and eventually steered north toward Cowra. The next few days were fairly uneventful, and wet. Also, I was getting frustrated because I hadn't been to this part of the Tablelands before so I didn't really know where to go to find appropriate sample sites, so there was a lot of driving around. I felt so bad for Britney because she was so patient and tried to be helpful, but sometimes my stress got the better of me. But we got some good samples over those few days and met some friendly landowners who couldn't have been more helpful for us. It wasn't long before a few exciting things happened. We were driving in the hills around Mandurama and off in the distance, on the high hilltops, we could see snow. Britney had never seen real snow in her life before so I drove back up into the hills until we crossed the snow line and stopped the car. Now, I've been in real blizzards, buried under feet of snow, and spent so much time in good snow that I was pretty unimpressed by the light dusting of white we saw on the ground, but it was real fun to watch Britney get out and stomp around in it, packing it into a little snowball and throwing it, and I got a good kick out of her answer when I asked, "Well, what do you think?" and she responded, "It's so WET!" Haha. It was a great moment and on the way back down the hill we crossed paths with a rural postman who was also stopping to take some photos of the snow. It was definitely a rarity for that time of year and a rarity for Australia in general! The next day we got a bit more excitement when I saw something unusual in one of the grazing paddocks - a small flock of weirdly gangly, 8-foot tall, dinosaur-like birds was strutting across the field a good distance away from the road, but I knew what they were immediately: Emus! I pulled over and grabbed my camera to take about one million photos of them. I wanted them to come closer and even though they didn't, we watched them for a good ten minutes or so!
And then November came around. It was time for me to head back into the field and collect some samples from sites I hadn't focused much time on before. I started off on my own this time, driving through the Blue Mountains north, back toward Manduarama to a site along Grubbenbun Creek I'd been to before, but didn't take samples. After Grubbenbun, the landowners gave me directions for the back-road route to get to Crookwell. It was already the evening and the two-hour drive took me through some beautiful dirt roads through tiny hill-towns with names like Thalaba, Abercrombie River, Peelwood, and Trunkey Creek. I would be sampling the next day north of the town of Laggan, so I stopped at the site to see if I could introduce myself to the landowners. The old couple who answered the door were so nice and and man had been living on the land since his family settled down here, the first European Australians to graze the land, way back in the 1830s! The next few days were standard work days. I'd go to the creek, clear off a fresh sediment surface from the gully wall and remove my sediment samples. After Laggan, I drove down to Queanbeyan where my Glasgow supervisor's former colleague, Jane, lived. Jane had been out with us for a few days in August and was happy to help me over the weekend. We went back to the Birchams Creek site, where again we saw dozens of kangaroos on the hillsides, and we also revisited a site on the western boundary of the Australian Capital Territory. Jane is a geologist and has had a bit of experience working on the Australian landscapes, so it was fantastic to work with someone who brought a professional geologist's perspective to my research and helped guide my field work strategy to be able to collect samples that would best answer my research questions.
But Jane could only help out over the weekend, so Monday I worked by myself again, and on Tuesday, I drove into Canberra to pick up my next field assistant, Drew. Drew had just finished his Honors Thesis on river erosion and sedimentation and happily, for me, was willing to give up a few days of surf to come dig around in the mud and dirt with me! I had a few hours before Drew arrived, though, so I checked out the Australian War Memorial on the outskirts of the city. Canberra isn't much as far as cities go, but it is chock full of museums! I only had about ten minutes in the War Memorial museum, but I will definitely be going back to spend more time there!
I retrieved Drew and we headed south for an hour or so and turned off down a long dirt road. I wanted to collect a different type of sample, mud from the valley bottom of a modern swampy meadow, one that hadn't been gullied through or buried yet. We saw a house that looked like they might own a bit of land and as we drove up, dog started running toward us and a very imposing man stood on the porch of the house. We exchanged hellos as we walked toward each other, and the mood changed immediately. This guy and his wife had just moved out into the country from a small town nearby and were in the process of building a Sabbatical Recording Studio in some of the sheds out back. I forget what his name was - MC something-or-other - but MC was really into his music and worked with local and international recording artists and he and his wife wanted to be surrounded by peace and quiet while working with artists who wanted to get out of your typical city sound studio and into a more relaxing setting for recording their music. They gave us a tour of their recording studio, which was a work in progress. And though I believed their story and liked MC's enthusiasm for music, we were still a little wary to follow them into these sheds where the studio was being built, though MC was so excited to show us the sound-proof rooms and a bathroom with a microphone built into the shower head so the artists could sing before their session and get rid of the jitters. I was actually pretty impressed and excited for their business. It was just such a cool combination of beautiful land, quiet scenery, and high-tech modern recording equipment! Though I do have to say, Drew and I both felt like we'd just stepped onto the set of a real-life horror movie when they took us on the tour of their studio. "Sure, come check out these sound-proof rooms. I won't knock you out with this hammer we're using to install the keyboard. Wait 'til you see the sound booth shed!" But really, MC and his wife were great people to chat with!
Drew and I carried on with our work, and the next day drove south from Cooma to a little town called Dalgety and turned down a road that ran a 20 kilometre loop through grazing country. We were headed to a town on my map called Jimenbuen, which was at the far end of the loop road. The road we were on went from being paved to dirt and eventually it turned into a small two-track that wound through wide open grazing pastures. Eventually, though, the road stopped and we were definitely not in any sort of town but in front of a creepy old house. It didn't look like anyone was home and it didn't seem to be near anything else, so we decided we must have taken a wrong turn somewhere and started to head back. While on that little two-track, though, we spooked three emus which were only about 30 metres away! Drew told me to stop the car and roll down the window. Apparently emus are notoriously curious and sure enough, they started toward the car. I couldn't believe just how massive these birds are! They're at least 8 feet tall, with spindly legs, and a relatively small body compared to their long necks which are covered with thick, tufty feathers. Honestly, they just look top-heavy and like with any step they will tip over! They got bored with us after just a few minutes and took off in the opposite direction, but it was so cool to be so close to these amazing birds out in the wild!
November was a warm month to be doing field work in and the days were hot and sweaty and Drew and I were bothered by flies wherever we went those few days, but as quickly as field work started, it ended for the year and we drove back to Sydney after a few days in Cooma. So now, with samples in hand, I was ready to start getting some data back from my samples and the story of when landscape change started on the Tablelands was beginning to take shape. The story continues, but I am waiting to be trained in the laboratory to process the rest of the samples, and while I have a few weeks of field work in the books for 2013, nothing yet is planned.
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