国际研究团队首次绘制出全球巨大的地下菌根真菌网络地图，该系统与全球植物形成互利共生关系。研究人员估计，这个地下网络的总长度达到约110京公里，几乎是地球与太阳距离的10亿倍，该研究已发表于《科学》期刊。

此地下真菌网络蕴含约300百万吨的碳生物量，相当于全球所有活人总质量的四到六倍。这些真菌网络每年向土壤中输送相当于40亿公吨的二氧化碳，约占人类每年因活动产生的二氧化碳排放量的11%。

然而，科学家警告，农业土壤中的真菌网络密度仅为自然生态系统的一半，而草原等关键生态系统正迅速被转化为农地。真菌网络密度的降低将削弱土壤储碳和循环养分的能力，保护并理解此系统对于应对气候变化至关重要。

An international team of researchers has mapped the global underground mycorrhizal network for the first time, illustrating the symbiotic system that supports plant life worldwide. The network is estimated to span approximately 110 quadrillion kilometers, which is nearly 1 billion times the distance between the Earth and the sun, with findings published in Science.

This underground fungal network holds around 300 megatons of carbon biomass, equivalent to four to six times the mass of the entire living human population. Each year, these networks draw the equivalent of 4 billion metric tons of carbon dioxide into the soil, representing roughly 11 percent of annual global anthropogenic emissions.

Scientists warn that agricultural soils have only half the fungal network density of natural ecosystems, while grasslands storing crucial biomass are rapidly converted to agricultural lands. Reduced network density could compromise the soil's capacity to store carbon and recycle nutrients, making conservation critical for addressing climate change.