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科学家利用垃圾来改造贫瘠的土壤

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Using Garbage to Rebuild Tired Soil

利用垃圾来改造贫瘠的土壤

Soil not only helps us grow crops, it holds on to carbon and filters water. But over time soil gets tired, it becomes ineffective at doing those things. The fab soil project at the University of Plymouth in the UK is working on different ways to re-energize tired dirt.“We're trying to create a soil that performs even better than a natural soil because we can actually adapt its functions and the constituents of the soil so that could have global opportunities for food security, for flood management, and we would like to think that people could take a soil like that, and use it themselves and feeling that they're contributing to sustainability.”As part of their research they're working with the Eden Project, a collection of bio-domes meant to preserve exotic plants. It's a closed environment so workers here have been making their own soil since the project began in 2000.“Across the entire site, our soil depth is about well no more than a meter, anywhere across sites, so it's quite amazing really the artificial soil supports the plant life you see today in Eden.”

土壤不仅能帮助我们种植农作物,它还能吸附碳并过滤水。但随着时间的推移,土壤会变得贫瘠,也无法再吸附碳和过滤水了。英国普利茅斯大学的“美好土壤项目”正在研究不同的方法以使贫瘠的再现泥土活力。“我们正试图创造一种甚至比天然土壤都好的土壤,因为我们实际上可以调整其功能和土壤成分,这对于食品安全和洪水管理来说都是一个全球机遇。我们认为人们能接受并亲自使用这样的土壤,他们会觉得自己对可持续发展做出了贡献。”作为其研究的一部分,他们(英国普利茅斯大学的研究人员)正在与伊甸园计划合作,伊甸园是一系列旨在保护热带植物的生物群落。它(伊甸园计划)是一个封闭的环境,这里的工作人员自2000年计划开始就一直在创造自己的土壤。“整个园区内的土壤厚度大约不超过一米,园区每个地方的土壤都是如此,人造土壤使我们现在在伊甸园区看到的这些植物都存活了下来,这真的很神奇。”

The Eden Project and the Plymouth team are experimenting with adding all kinds of recyclable green waste into tired soil to get it back to work quicker.“The abilities to be able to take a project that's a waste from one industry and actually turn it into a bespoke recipe soil for an area that requires restoration either because it's a mined famous even project walls or other degradation that has occurred in that area means that not only you're helping to restore that area but you're also using a product that otherwise would be just going to landfill.”It's a three-year project and the hope is to create a soil that can be used to increase crop yields all over the world and it can't come fast enough.The UN says about a third of the world's top soil has been degraded through overuse.

伊甸园计划和英国普利茅斯大学研究小组人员都尝试将各种可回收绿色垃圾加到土壤中以使其能更快地恢复工作。“拥有能利用某一领域的废弃物这一项目转化为某一待修复区域的定制配方土壤的能力,不管这一区域需要修复的原因是开采过度,项目墙工程,亦或是其他退化,意味着你不仅在帮助那片区域恢复产能,也将一种不然只能丢弃到填埋场的产品利用了起来。”这是一个为期三年的项目,愿景是创造出一种能用来在全球范围内增加农作物产量的土壤,但是它不会很快出现。联合国称世界上约三分之一的表层土壤都因过度使用而退化。

Kevin Enochs VOA news.

美国之音记者Kevin Enochs报道。

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