文獻上新！PRI-8800助力土壤有機碳分解對溫度變化響應的研究

圖1.不同海拔和土層間Q10值的分布，Q10-cum，基于128天累積培養(yǎng)呼吸計算；Q10-q，基于累積消耗碳組分0-0.1%、0.2-0.3%、0.4-0.5%計算；Q10-k基于模型模擬快庫、慢庫、惰庫計算。



表1.海拔和土層對不同Q10的影響

圖2.隨機森林模型明確氣候因素、土壤理化性質、化學組分和物理保護對Q10-q的影響

圖3.氣候、土壤理化性質、化學組分和物理保護對Q10的影響

UPGRADED！

我們一起了解一下~

• 可進行恒溫或變溫培養(yǎng)設定；

• 溫度控制波動優(yōu)于±0.05℃；

• 平均升降溫速率不小于1°C/min；

• 150ml樣品瓶適配25位樣品盤；

• 具有CO2預降低的雙回路設計；

• 一體化設計，內(nèi)置CO2 H2O模塊；

• 可以外接濃度和同位素分析儀等。

02 PRI-8800 實驗設計

03 PRI-8800相關文獻信息
1.Li, C., Xiao, C.W., Guenet, B., Li, M.X., Xu, L., He, N.P. 2022. Short-term effects of labile organic C addition on soil microbial response to temperature in a temperate steppe. Soil Biology and Biochemistry 167, 108589. 
2.Jiang ZX, Bian HF, Xu L, He NP. 2021. Pulse effect of precipitation: spatial patterns and mechanisms of soil carbon emissions. Frontiers in Ecology and Evolution, 9: 673310.
3.Liu Y, Xu L, Zheng S, Chen Z, Cao YQ, Wen XF, He NP. 2021. Temperature sensitivity of soil microbial respiration in soils with lower substrate availability is enhanced more by labile carbon input. Soil Biology and Biochemistry, 154: 108148.
4.Bian HF, Zheng S, Liu Y, Xu L, Chen Z, He NP. 2020. Changes in soil organic matter decomposition rate and its temperature sensitivity along water table gradients in cold-temperate forest swamps. Catena, 194: 104684.
5.Xu M, Wu SS, Jiang ZX, Xu L, Li MX, Bian HF, He NP. 2020. Effect of pulse precipitation on soil CO2 release in different grassland types on the Tibetan Plateau. European Journal of Soil Biology, 101: 103250.
6.Liu Y, He NP, Xu L, Tian J, Gao Y, Zheng S, Wang Q, Wen XF, Xu XL, Yakov K. 2019. A new incubation and measurement approach to estimate the temperature response of soil organic matter decomposition. Soil Biology & Biochemistry, 138, 107596.
7.Liu Y, He NP, Wen XF, Xu L, Sun XM, Yu GR, Liang LY, Schipper LA. 2018. The optimum temperature of soil microbial respiration: Patterns and controls. Soil Biology and Biochemistry, 121: 35-42.
8.Liu Y, Wen XF, Zhang YH, Tian J, Gao Y, Ostle NJ, Niu SL, Chen SP, Sun XM, He NP. Widespread asymmetric response of soil heterotrophic respiration to warming and cooling. Science of Total Environment, 635: 423-431.
9.Wang Q, He NP, Xu L, Zhou XH. 2018. Important interaction of chemicals, microbial biomass and dissolved substrates in the diel hysteresis loop of soil heterotrophic respiration. Plant and Soil, 428: 279-290.
10.Wang Q, He NP, Xu L, Zhou XH. 2018. Microbial properties regulate spatial variation in the differences in heterotrophic respiration and its temperature sensitivity between primary and secondary forests from tropical to cold-temperate zones. Agriculture and Forest Meteorology, 262, 81-88.
11.Li J, He NP, Xu L, Chai H, Liu Y, Wang DL, Wang L, Wei XH, Xue JY, Wen XF, Sun XM. 2017. Asymmetric responses of soil heterotrophic respiration to rising and decreasing temperatures. Soil Biology & Biochemistry, 106: 18-27.
12.Liu Y, He NP, Xu L, Niu SL, Yu GR, Sun XM, Wen XF. 2017. Regional variation in the temperature sensitivity of soil organic matter decomposition in China’s forests and grasslands. Global Change Biology, 23: 3393-3402.
13.Wang Q, He NP*, Liu Y, Li ML, Xu L. 2016. Strong pulse effects of precipitation event on soil microbial respiration in temperate forests. Geoderma, 275: 67-73.
14.Wang Q, He NP, Yu GR, Gao Y, Wen XF, Wang RF, Koerner SE, Yu Q*. 2016. Soil microbial respiration rate and temperature sensitivity along a north-south forest transect in eastern China: Patterns and influencing factors. Journal of Geophysical Research: Biogeosciences, 121: 399-410.
15.He NP, Wang RM, Dai JZ, Gao Y, Wen XF, Yu GR. 2013. Changes in the temperature sensitivity of SOM decomposition with grassland succession: Implications for soil C sequestration. Ecology and Evolution, 3: 5045-5054.
16.何念鵬, 劉遠, 徐麗, 溫學發(fā), 于貴瑞, 孫曉敏. 2018. 土壤有機質分解溫度敏感性研究：培養(yǎng)與測定模式. 生態(tài)學報, 38: 4045-4051.
17.Mao X1, Zheng J1, Yu W, Guo X, Xu K, Zhao R, Xiao L, Wang M, Jiang Y, Zhang S, Luo L, Chang J, Shi Z, Luo Z* 2022. Climate-induced shifts in composition and protection regulate temperature sensitivity of carbon decomposition through soil profile. Soil Biology and Biochemistry 172, 108743.