Why did 1,000 Swiss citizens bury their underpants?
摘要
1000名瑞士公民自愿将棉质内裤埋入地下两个月，参与一项公民科学项目，以绘制瑞士全国土壤健康地图。相关成果发表于《植物、人类、地球》期刊。研究显示，土地管理方式显著影响土壤生物与质量，健康且具生物活性的土壤对肥力、养分循环等生态系统服务至关重要。土壤健康对农业和粮食安全意义重大，但全球范围内正持续退化。有机质分解速率是衡量土壤健康的关键指标，而大规模、涵盖不
One thousand Swiss citizens voluntarily buried their cotton underpants for two months—not to keep the Underpants Gnomes from stealing them, but as part of a citizen science project to map out soil health across Switzerland. The results of this unique experiment were reported in a new paper published in the journal Plants People Planet.
“Our results show that how soil is managed can significantly affect both soil life and soil quality,” said co-author Marcel van der Heijden, an agroecologist at the University of Zurich. “Healthy, biologically active soil is crucial for fertility, nutrient cycling and many other ecosystem services.”
Soil health is critical for agriculture and, by extension, food security, not to mention a healthy global ecosystem, but it has been declining worldwide, per the authors. One key indicator of soil health is decomposition rates of complex organic matter, breaking down stuff like leaves, wood, even cadavers into simpler organic and inorganic compounds, releasing C02 and nutrients in the process. There have been relatively few large-scale national decomposition studies involving different land use types, although smaller studies have shown that how humans use a site can significantly affect the soil's biological diversity.
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