施氮量对农田土壤有机氮组分及酶活性的影响
焦亚鹏1,齐鹏1,2,3(
),王晓娇1,4,武均1,2,3,姚一铭1,蔡立群1,2,3,张仁陟1,2,3
),王晓娇1,4,武均1,2,3,姚一铭1,蔡立群1,2,3,张仁陟1,2,3
Effects of Different Nitrogen Application Rates on Soil Organic Nitrogen Components and Enzyme Activities in Farmland
JIAO YaPeng1,QI Peng1,2,3(),WANG XiaoJiao1,4,WU Jun1,2,3,YAO YiMing1,CAI LiQun1,2,3,ZHANG RenZhi1,2,3
),WANG XiaoJiao1,4,WU Jun1,2,3,YAO YiMing1,CAI LiQun1,2,3,ZHANG RenZhi1,2,3
图4. 土壤基础化学性质和氮素转化酶与氮组分的冗余分析
PR:蛋白酶 Proteinase; UR:脲酶 Urease; NR:硝酸还原酶 Nitrate reductase; NIR:亚硝酸还原酶 Nitrate reductase; SOC:土壤有机碳 Soil organic carbon; TN:全氮 Total nitrogen; TP:全磷 Total phosphorus; C:N:碳氮比 C:N; AN:酸解铵态氮 Acidolyzable ammonia N; ASN氨基糖态氮 Amino sugar N; AAN氨基酸态氮 Amino acid N; UAN:酸解未知氮 Unknown-acidolyzable N; NAN未酸解氮 Non-acidolyzable N; CKA:CK为试验处理, A为0—10 cm土层, B、C 分别为10—20, 20—40 cm土层. CKA:CK is the treatment, A is 0-10 cm soil layer, B, C is 10-20 and 20-40 cm soil layer, respectively
Fig. 4. Redundancy analysis of soil chemical properties, enzyme activities and soil organic nitrogen forms
