 We are now in the national park of Durbak in Jambi, Sumatran. And we are now at the location of the seaforce site, where we are carrying out our research for greenhouse gas emission monitoring. And I'm working over there, working on carbon stocks in the buff and below ground biomass and on root dynamics. So this is a peat auger. This is actually for sampling soil in peat swamp forest. It has this blade, it's movable. So what you do is you just push right into the soil. And then you turn it around, twist it, and then this closes. Then you take it out, and you can just take the soil sample. And this is pretty handy for me as well. For installing my tubes, because I need a really nice hole. And because the tubes have to be in the soil in the angle of 45 degrees, because you want to have the whole picture. And when you just put it in vertically, you might miss some roots. Yeah, it's twisting it to make the hole to get the soil out. And you already see it's really moist and wet. And now when you open it, so this is the peat's hole. It's highly organic, like really little minerals in it. Most of the minerals come from decomposed leaves or decomposed roots. As you see, you can barely see them. They're really, really small. These are fine roots. Roots with a diameter less than 2 millimeters. And this is where most of the carbon is stored in these peat swamp ecosystems. Small little hole where the pipe goes in. And you already can see here that you have these root mats here, a lot of small, little fine roots. This is basically the pipe and it has a cap. It's sealed at the bottom as a yellow line to be able to see where you want to have your sample. Going inside. Perhaps you want to see when I push it in, all the water is already coming out. Go smoothly inside. This part is black because you don't want the sunlight coming into the tube, which could have an effect on root growth. And you want to have it really tight to the soil that there's no space in between. Let's check. Yeah. This tube is perfect. No water is coming in. We have these small little pipes to anchor it, to make sure that the pipe is really stable into the soil and doesn't move. Because they will stay for at least two years here on this side. And I will go after this six months waiting period where I come back every second month. I will come back every month to take pictures. And this continues for two years, basically. And to make sure that this stays, we just take a little bit of wire and attach it. This holds really tight on it. So this is the cap. It says Roman one for the transect, for the plot, and a one for the pipe. This basically comes just on the tube to prevent that it gets flooded. And that's it. That's the tube installation. This is the laptop to see what you are doing. I'm doing a big battery for the power supply of the camera. This is the camera. Here you need to have light bulbs, of course, to be able to see something inside this hole because everything is pitch black. Here I can adjust the intensity of the light. And I also can focus either red or the yellow mark. I will enter into the tube now. Look for the mark. Go deeper to the first tip. And here what you see, this is all the soil. And here you see roots. These are all roots. And you can really follow this. So you can really see where the root is growing. Here's the big root, which is approximately this size. And then you have the primary roots, the small roots, coming out here. These are the reference images, so the first images. So I will come back in two months, take the next set of images. Then two months afterwards, two months afterwards. We measure the height. And then we measure two diameters. One at the base, kind of, where in this example, you would measure it here. Like, this is already one made at 30. And then a little bit more above, 1.3 meters above, to see how it continues. We have a form factor, so to say, to calculate the volume. This one? No, that's not it. So what do you want to go to sleep? Two and a half centimeters above. Two centimeters five to seven centimeters five. That's the small one. The seven and a half centimeters above, So what we did in the last couple of days is we collected some additional litter samples and understory samples. These needs to be dried, and weighed, and grinded, and analyzed for carbon as well. Then in these bags, we have moody debris samples. This is the small class, so medium moody debris, which is from 2.5 to 7.5 centimeters. These are in total 20 pieces. They will come in the oven, where like old samples are already in sight. They stay there for a couple of days until they are really, really dry, constant weight. And then I just measure the diameter and the length, so determine the volume that I can calculate the specific gravity.