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水蚀风蚀交错带草地土壤碳氮组分对柠条的响应特征
朱寒松1; 李学章2; 贾小旭3; 邵明安1; 魏孝荣1
2018
Source Publication水土保持研究
ISSN1005-3409
Volume025Issue:005Pages:29
Abstract采用相对密度分组法研究了水蚀风蚀交错带不同年限草地和相邻柠条林地0—40cm土层土壤碳氮组分分布特征,旨在揭示研究区草地土壤碳氮组分对柠条的响应特征。研究结果显示:草地转变为柠条林后,土壤重组有机碳和全氮含量变化很小(分别介于-0.19-0.06g/kg和-0.001-0.017g/kg),而轻组有机碳和全氮含量变化较大,并且随年限和土层的不同而异。25年柠条林地土壤有机碳和全氮在0—40cm土层的储量分别增加了10.94 Mg C/hm^2,0.07 Mg N/hm^2,而轻组有机碳和全氮分别增加了2.41 Mg C/hm^2,0.11 Mg N/hm^2;40年柠条林0—40cm土层土壤轻组有机碳降低了4.54 Mg C/hm^2重组有机碳和总有机碳增加了6.26,1.72Mg C/hm^2;而土壤全氮、轻组和重组全氮储量分别降低了0.73,0.44,0.29 Mg N/hm^2。这些结果表明草地转变为柠条林后,土壤有机碳和全氮的变化分别由重组有机碳和轻组全氮引起。
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/98382
Collection中国科学院地理科学与资源研究所
Affiliation1.西北农林科技大学
2.中国科学院亚热带农业生态研究所
3.中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
朱寒松,李学章,贾小旭,等. 水蚀风蚀交错带草地土壤碳氮组分对柠条的响应特征[J]. 水土保持研究,2018,025(005):29.
APA 朱寒松,李学章,贾小旭,邵明安,&魏孝荣.(2018).水蚀风蚀交错带草地土壤碳氮组分对柠条的响应特征.水土保持研究,025(005),29.
MLA 朱寒松,et al."水蚀风蚀交错带草地土壤碳氮组分对柠条的响应特征".水土保持研究 025.005(2018):29.
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