Plateau zokor (Eospalax baileyi) is a native subterranean rodent living in alpine rangeland on the Qinghai–Tibet Plateau. The zokors excavate soil in their tunnels and push it out to form the zokor mound, which is secondary bare land on the ground. In the alpine rangeland ecosystem, the bare lands emit greenhouse gases and reduce carbon sequestration. However, little is known about the greenhouse gas emissions from the zokor mounds with bare soil. In this study, we used a gas analyzer in situ combined with a closed static chamber to monitor the emissions of CO₂ and CH₄ from new mounds, seminew mounds, old mounds, and the pasture without mounds. The biomass bacteria, fungi, and actinomycetes in the 0- to 20-cm soil layer of the mounds and the pasture without mounds were simultaneously investigated. To explore the source of the CO₂ and CH₄ emissions, we compared the differences of CO₂ and CH₄ flux in the zokors’ active tunnels, tunnel-free soil, and mound-free pasture. The results showed that 1) the highest flux of CO₂ and CH₄ emissions in the same month was from new mounds, followed by seminew mounds, old mounds, and the pasture without mounds; 2) CO₂ and CH₄ emissions from the different mounds in 4 mo were significantly influenced by months and mound types, although there was no significant interaction between these factors; and 3) the flux of CO₂ and CH₄ emissions from the zokor mounds were significantly positively correlated with their total biomass of microbes and the flux of CO₂ and CH₄ inside the zokor active tunnels. The CO₂ and CH₄ inside the zokor active tunnels had more contributions to CO₂ and CH₄ emissions from the zokor mounds than the soil microbes’ biomass in the mounds.

高原鼢鼠（Eospalax Baileyi）是一种生活在青藏高原高山牧场的土生啮齿动物。zokor在他们的隧道中挖掘土壤并将其推出以形成zokor土墩，这是地面上的次生裸地。在高山牧场生态系统中，裸露的土地会排放温室气体并减少碳固存。然而，人们对赤土裸露的 zokor 土丘的温室气体排放知之甚少。在本研究中，我们使用现场气体分析仪结合封闭的静态室来监测 CO ₂和 CH ₄的排放来自新丘、半新丘、旧丘和没有丘的牧场。同时调查了土丘和无土丘草场0~20 cm土层中的生物质细菌、真菌和放线菌。为了探究CO ₂和CH ₄排放的来源，我们比较了zokors 活动隧道、无隧道土壤和无丘牧场中CO ₂和CH ₄通量的差异。结果表明：1）当月CO ₂和CH ₄排放通量最高的是新土丘，其次是半新土丘、旧土丘和无土丘的牧场；2) CO ₂和 CH ₄4 mo 不同土墩的排放受月份和土墩类型的显着影响，尽管这些因素之间没有显着的相互作用；3) zokor 土丘的CO ₂和CH ₄排放通量与其微生物总生物量和zokor 活性隧道内的CO ₂和CH ₄通量呈显着正相关。的CO ₂和CH ₄的鼢鼠活性隧道内不得不CO更多的贡献₂和CH _4倍从鼢鼠土堆比土壤微生物在土堆生物质的排放。