氮磷添加对昆仑山北坡高山草地N<sub>2</sub>O排放的影响

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氮磷添加对昆仑山北坡高山草地N₂O排放的影响

曹登超^1,^2,^3,⁴,高霄鹏^1,^2,^3,^*(

),李磊^1,^2,³,桂东伟^1,^2,³,曾凡江^1,^2,³,匡文浓^1,^2,^3,⁴,尹明远^1,^2,^3,⁴,李言言^1,^2,^3,⁴,艾力•甫拉提⁵

Effects of nitrogen and phosphorus additions on nitrous oxide emissions from alpine grassland in the northern slope of Kunlun Mountains, China

CAO Deng-Chao^1,^2,^3,⁴,GAO Xiao-Peng^1,^2,^3,^*(

),LI Lei^1,^2,³,GUI Dong-Wei^1,^2,³,ZENG Fan-Jiang^1,^2,³,KUANG Wen-Nong^1,^2,^3,⁴,YIN Ming-Yuan^1,^2,^3,⁴,LI Yan-Yan^1,^2,^3,⁴,Aili PULATI⁵

图4. 不同氮磷添加处理下昆仑山北坡高山草地土壤NH₄⁺-N、NO₃^--N和速效P含量的动态变化(平均值±标准误差)。 *表示处理间存在显著差异(p < 0.05)。CK, 对照; N, 氮添加; N + P, 氮磷混施; P, 磷添加。

Fig. 4. Dynamic variation of soil NH₄⁺-N, NO₃^--N and available P content under different nitrogen and phosphorus addition treatments in alpine grassland in the northern slope of Kunlun Mountains (mean ± SE). * indicates significant difference between treatments (p < 0.05). CK, control; N, nitrogen addition; N + P, nitrogen and phosphorus addition; P, phosphorus addition.