The trenches and canals have been a large, so far ignoring, a greenhouse is a source of gas emissions.

It is a cool winter morning in the foggy and bare arable fields of Eastern Anglian fence. On the edge of an area, a scientist immerses a long pole into a trench. So, what is a climate researcher doing here?

We are measuring greenhouse gas emissions from the trench and canals by collecting the trench water samples and analyzing them in the laboratory. We also use floating chambers-a low-technology composition (sometimes with high-tech sensors) is made of a plastic bucket and noodle-shaped swimming floats that sit on top of the water and collect the gases emitted by it.

As a biochemist of freshwater, we check how elements such as carbon and nitrogen are cycled through freshwater ecosystems such as rivers, lakes and ponds. We study how human-inspired pressure, including utirophification-causes additional nutrients, which reduces oxygen-and climate change affects these cycles.

Unlike many other scientists, we have a hobby for trenches and canals (we will call them all the trenches from now on), which do not pay much attention to the freshwater research world.

Researchers have Was first calculated It leads to 3% of the total global methane emissions from human activities. In Our new study published in Global change biologyWe find that they emit a lot of CO₂ And nitrous oxide.

In fact, when comparing the same surface region, the gap emit more co -cum₂ And nitrous oxide compared to ponds, lakes and reservoirs – perhaps due to the inputs of high nutrients that go into the ditch.

Using a coarse containing of the global surface area of ​​the trench, we guess that global freshwater cum will increase including the trench₂ Emission from 1% up to 9% and nitrous oxide emissions.

These percentage may look small, but they add. When accounting for all three greenhouse gases, the world’s gap 333tg cum₂E (cum’s terragram₂ Equal- A general unit to express the total climate effect of all greenhouse gases). It’s almost equal UK total greenhouse gas emissions in 2023 (379tg co₂E).

For this study, we collaborated with trench experts from UK, Netherlands, Denmark, Australia and China. We collected existing data of greenhouse gas emissions from 119 moat in 23 different countries in all major climatic regions.

We estimated that global stitches cover around 5,353,000 hectares – 22% of the total land area of ​​the UK or 22% of Costa Rica. However, researchers still do not know the global boundary of the trench – they can actually cover a very large area.

The gaps are man-made, linear waterways that are created to serve a variety of objectives. By drying the wetlands, they can help make Growth producer for growing crops or trees,

They also transport water for irrigation of crops. Made to make something Desirable waterfront propertiesLarge canals play a role in shipping and transport, while the roadside gap works to rebuild the drainage of the storm water.

The global length of the trench is unknown but very large. In many European countries, the total trench lengths rival their streams and rivers rivals. Netherlands have 300,000 km stitches Cris-Crossing Agricultural Land. In Finland, network of forestry drains Total 1 million km,

Drench can emit large amounts of greenhouse gases (CO)₂Methane and nitrous oxide) that contribute to global warming and climate change. The trench often contains stable water and is usually found in agriculture and urban landscapes, meaning that they can get inputs of more nutrients more than agricultural runoff, which contain manure and fertilizer, and lawn fertilizer, pet and yard waste waste water climb.

It makes ideal, ideal for the production of greenhouse gases, especially methane and nitrous oxide, ideal for high-nutrient conditions, whose global warming potentials are Char is much higher than₂Given their limits, the gap, so the freshwater greenhouse gas in many countries around the world contributes significantly to the budget.

Fences, Plant and Drees

By considering the gap while reporting their annual greenhouse gas emissions, the nation can create a more accurate picture of the problem. The stoppage of appropriate amounts can also help researchers target ways to reduce greenhouse gas emissions. For example, Can do strong laws Limit the use of fertilizers and manure near the trench.

In Australia Fence to stop cattle By entering the farm dams, methane emissions have been reduced by half from the dams. A similar strategy can be applied to the gap to reduce the amount of fertilizer rich in nutrients flowing in them.

Planting more trees The bank’s banks can help take some nutrients and low water temperature through shading, which also reduces greenhouse gas production. Exhaustion The trench can remove sediment rich in nutrients, while plane The trench water can make the conditions less ideal for the production of methane.

Therefore, solutions exist – but they will only be planned and scales, once the important amount of emissions from the trench is determined and more widely recognized.

This article has been reinstated Conversation Under a Creative Commons License. read the Original article,