I biked up Kennedy’s bush this afternoon, then over the Summit Rd and down through the Christchurch Adventure Park. It was a fantastic ride, not only because of the gorse, but because I had one earbud in listening to Dire Straits on Spotify. I encountered the old favorites, but also a bunch of songs I had never heard before. Listening to music has such a profound affect on mood. With Dire Straits I was a more aggressive rider on the downhill trails, and I’ve never enjoyed them as much as I did today. What a fabulous ride!
This pansy was covered in perfect spherical melted frost drops, glisteningin the morning sun. I passed it planter yesterday on my way into work, and actually doubled back to take a photograph. I wonder what microscopic characteristics of the petal surface make it so hydrophobic.
Last weekend I went hiking with some friends to Youngman Stream hut, in the Lees Valley. We came off the tussock-covered tops and down to the beginning of the beech forest, and inhaled the peculiar scent of those woods.
The beech forest has a heady fermenting smell, not disgusting but not particularly pleasant, in an objective way. But that first big whiff was my Delight of the Day, because it means we’re in the NZ east coast bush.
The smell is the mold growing on the honeydew of the particular species of scale insect that coats the trunks of these beech trees. The black mold grows in thick cushiony mounds along the tree trunks and even the ground. Even if I go blind, I’ll love this smell because it means I’m in the New Zealand woods.
At work I’m on a mission to better utilize our waste nutrient water. The latest tool acquired for that mission is the light green nitrate meter in this set. The purple potassium meter is also on order.
I took it out of the packaging yesterday, squinted at the instructions that come in seven different languages printed on crinkled light weight paper, calibrated it with the sleek little bottles of calibration solution, and checked the nitrate level in one of our recirculating fertigation tanks. 730ppm NO3-
I was confused. According to my Mega-Fancy Fertilizer Spreadsheet, I expected that nutrient solution to be at approximately 170ppm N, since the EC was 1.7 I checked it with the nitrate test strips–the reading was off the chart, above 500ppm. Had my spreadsheet been grossly wrong for all these years?!
I went and measured another familiar solution, a “high N” feed at EC 1.6. Again, the answer was way higher than I expected, 640ppm nitrate. I pulled out a text book and looked up that calcium nitrate mixed at 0.84g/L should make a solution with EC 0.8 and 100ppmN, then went to the fertilizer room to measure out the solution. The tester showed 440ppm nitrate. Eh??
Back at my desk I phoned the guy I bought the meter from. I must be doing something wrong, but I wasn’t sure what. We talked about calibration, checking the meter in clear water, using a standard solution….nothing was ringing a bell, until I looked at the container of test strips I was using as a comparison. There were two scales to read: nitrate-N ppm or NO3-ppm. I hadn’t registered that there was a difference, but the scales had different numbers–500ppm NO3- equals 113 ppm nitrate-N. That’s when I figured out my error. My fertilizer spreadsheet is calculated in N mg/L, which is different than NO3- mg/L by a factor of the molecular weight of 3 oxygen molecules. I glanced over at my nerdy wall poster of the periodic table of elements. A molecule of NO3- weights 62g/mole while N itself only weighs 14g/mole, so ppm calculations in NO3- are 4.42 times higher than those in solo nitrogen molecules.
Adjusting for the extra weight of the oxygen, suddenly all the numbers made sense. My Mega-Fancy Fertilizer spreadsheet was still telling the truth, albeit in a different language. SUCH a relief.
Delight of the Day: Chemistry WORKS. Math WORKS. And so does my nitrate meter.
Delight of the Day!
I make a point to never check the weekend forecast for an upcoming tramp before Thursday, Wednesday night at the latest. It’s not a superstition, exactly, more my way to cope with an ever-changing forecast and an aversion to decision-making. Better to see the forecast just once, close enough to departure to be pretty solid, and make one decision about where we’ll go to avoid the rain.
But THIS time the whole of our weekend driving range looked amazingly good. Cold, for sure; it IS winter after all. But dry, sunny, and with calm winds. Carrie and I reveled in the unexpected luck in getting yet another winter tramp in fine weather. We both have kids and partners and jobs, so overnight tramps don’t happen spur-of-the-moment, and if the calendar appointment happens to fall on a good weather weekend, it’s cause for joy.
We opted for Edwards Valley. We had both been there before, but it’s less than two hours drive from Christchurch, and has a snug hut above the tree line, and side trip potential.
The walk up the Edwards starts with crossing the Bealey and the Mingha Rivers, which aren’t bridged, but in low flows are straight forward. I even kept my boots somewhat dry, with the aid of gaiters and a walking pole. The track isn’t technical, but, as we were reminded by a couple staying at the hut, it IS a big step up from the Abel Tasman great walk. The track bounced between a steep wooded path around gorges and stretches of gravelly river bed, but since you’re going up river and the hut is on the river, you really can’t get lost.
“During the magnitude 7.1 Arthur’s Pass earthquake on 9 March 1929, a 900-metre-high section of mountain peak collapsed onto Taruahuna Pass, close to the epicentre. The landslide continued partway up the flanks of Mt Franklin opposite. It then slid about 5 kilometres down the remote valley of the west branch of the Otehake River. The collapsed peak was later dubbed Falling Mountain.” https://teara.govt.nz/en/photograph/4493/falling-mountain-landslide
I’ve been in the Taruahuna pass several years ago and I remember the landscape–huge rip-rap type boulders fill the entire pass, your entire field of vision for at least an hour of hiking. Can you imagine a land slide big enough to shoot rubble 5 km down the neighboring valley? It did occur to me that one would have to be extraordinarily unlucky to be in the mountains during that kind of event, and of course it’s not unprecedented…. But you can’t live your life worrying about these things.
The hut was unexpectedly busy for a winter weekend; of the 16 bunks, 13 ended up full. Around one table that evening we had cool range of accents, and countries of origin. Chinese, Canadian, German, Kiwi, Dutch, Zimbabwean, American and Australian. The sky was cloudless and the moon hadn’t yet risen; the milky way was more spectacular than I’d ever seen it.
Still, we felt pretty accomplished. Once you’re confident with navigating off-trail, all kinds of amazing adventures open up. Carrie and I are working on building those skills and that confidence, while at the same time being aware that a whole lot can go wrong while making up your own route in the mountains.
Comfort zones nudged out a bit towards more adventure–yay!
“I can’t find a plastic fork….maybe I could use a knife to cut up the noodles and eat them with a spoon?”
If I was a more keyed-in person, I would have realized that my friend Teena was a bit worried about our planned tramp, if she was fretting over the cutlery. But I was blithely unaware, and simply told her I’d throw in an extra fork.
We had had this tramp on the calendar for months, a daintily coordinated weekend date between various other weekend commitments and travels for the three of us, one of whom still couldn’t make it at the last minute.
We met at my house at 7:00, as I was keen to get up to Lewis Pass early. Teena, good communicator as she is, had been clear that tenting wasn’t a preferred option, so I was anxious to stake a place in the popular hut in case it filled up.
“Should I bring one pair of spare socks, or more than one?” “How many pairs of leggings do you wear?” “I’ve got my eye shades, ear plugs, pillow, three jumpers, puffy jacket…..” the gear list sounded extensive, but when I lifted Teena’s pack, I was reassured. It was very practical, probably lighter than mine.
Back at the hut we spent a little time collecting fallen beech branches for the fire. New Zealand beech is a different family than north american beech. It might technically be a hard wood, but my experience collecting it to burn is that it’s nearly always squishily saturated with water. The dead branches must do a fair bit of rotting on the tree itself, and when they fall they encounter deep moss on the forest floor where they somehow absorb even more water, to the point of literal sponginess. It doesn’t bode well for a hot fire.
The trail is a straight forward track up through sheep pasture to the summit. Every year it is closed for lambing August-October, right about when the weather is getting warmer and we’re wanting to plan such a hike, so we squeaked it in just before the closure this time. It really is a better track to do on a clear winter day anyway….there’s no water and no shelter, so it would be a scorcher in the summer.
Last week was the first time someone referred to me (in my hearing) as “middle-aged.” I thought I didn’t deserve that term until I turn 40, but I have to admit that the wrinkles around my eyes and propensity to retire early to bed under an electric blanket all point to the same direction. And, if I admit it, so do our conversation topics.
I remember when other people talked about cranky joints and the pleasure of taking a kid-less outing to the grocery store. I listened to them, smiling, comfortably bemused, wondering what it was like to get old. Ha.