不同耕作和秸秆还田下褐土真菌群落变化特征

代红翠,张慧,薛艳芳,高英波,钱欣,赵海军,成浩,李宗新,刘开昌

Response of Fungal Community and Function to Different Tillage and Straw Returning Methods

HongCui DAI,Hui ZHANG,YanFang XUE,YingBo GAO,Xin QIAN,HaiJun ZHAO,Hao CHENG,ZongXin LI,KaiChang LIU

表2 不同耕作和秸秆还田方式下土壤化学性质

Table 2 Chemical properties of the soils in different tillage and straw returning methods

土层 Layer (cm) 处理 Treatment pH 有机碳 TOC (g·kg-1) 可溶性有机碳 DOC (mg·kg-1) 全氮 TN (g·kg-1) 碱解氮 AN (mg·kg-1) 有效磷 AP (mg·kg-1) 速效钾 AK (mg·kg-1) 0-10 NTD 7.04±0.10c 14.04±2.01a 49.09±5.78a 1.11±0.02a 11.11±1.99a 62.18±8.76a 180.39±16.56a NTS 7.38±0.14b 10.58±0.64bc 38.48±4.46b 0.97±0.10b 7.50±0.28b 39.76±5.81b 143.71±11.94b DTD 7.54±0.06ab 9.12±1.35cd 37.36±5.61b 1.03±0.08ab 9.49±0.70ab 42.52±6.46b 111.43±8.21c DTS 7.61±0.09a 7.82±0.15d 25.48±2.71c 0.98±0.04b 9.03±0.88ab 31.09±4.37b 92.67±5.47c RTD 7.45±0.12ab 12.15±1.29ab 41.08±3.65b 0.96±0.06b 9.84±0.77a 44.18±8.64b 147.77±10.25b RTS 7.47±0.14ab 10.08±1.45bc 39.68±2.61b 0.92±0.05b 9.95±1.65a 41.36±7.31b 112.44±15.52c 耕作方式Tillage ns ** ** ns ns * *** 还田方式Returning ns *** ** * * ** *** 交互作用Interaction ns ns ns ns * ns ns 10-20 NTD 7.80±0.21a 6.70±0.80c 35.95±5.30ab 0.78±0.18ab 7.30±0.58a 19.86±2.59b 94.87±5.29a NTS 7.87±0.16a 6.05±0.98c 28.51±2.94bc 0.61±0.08b 5.31±0.97b 16.91±3.49b 91.99±7.39a DTD 7.57±0.06a 8.15±0.80ab 29.57±5.01abc 0.92±0.11a 8.62±0.15a 27.39±4.55a 106.02±11a DTS 7.75±0.20a 7.33±0.17bc 25.21±1.98c 0.76±0.03ab 8.70±1.01a 23.37±1.77ab 98.75±9.89a RTD 7.53±0.23a 9.26±0.89a 37.44±4.88a 0.71±0.05b 7.90±1.30a 29.14±5.3a 102.81±2.97a RTS 7.72±0.15a 8.20±0.38ab 35.43±4.61ab 0.72±0.06b 8.00±0.66a 26.81±3.59a 98.92±4.15a 耕作方式Tillage ns *** * ns ** ** ns 还田方式Returning ns * * * ns ns ns 交互作用Interaction ns ns ns ns ns ns ns