Stoichiometry of Carbon,Nitrogen and Phosphorus in Mining Area of Steppe Grassland in Xinlinhot
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年18
- Page:
- 102-108
- Research Field:
- Publishing date:
Info
- Title:
- Stoichiometry of Carbon,Nitrogen and Phosphorus in Mining Area of Steppe Grassland in Xinlinhot
- Author(s):
- LU Zhihong1; LIU Xinyao2; LI Lanhua3; SONG Xiangyang3; CHANG Shujuan3; YANG Yong3
- (1.Wujiang College,Tongren College,Tongren,Guizhou 554300;2.College of Grasslands，Resources and Environment,Inner Mongolia Agricultural University，Hohhot,Inner Mongolia 010018;3.Inner Mongolia Institute of Grassland Survey and Planning,Hohhot,Inner Mongolia 010051)
- Keywords:
- ecological stoichiome; C/N; C/P; N/P
- PACS:
- -
- DOI:
- 10.11937/bfyy.20180549
- Abstract:
- Concentration and stoichiometric characteristics of C，N and P in mining area of Steppe grassland with different sampling distances were investigated and different directions around Shengli Coalfield in Xinlinhot.The results showed that,1)The contents of organic carbon,total nitrogen,total phosphorus were highest at 4.0 km,while the ratio of C∶N,N∶P were highest at 4.0 km,and the ratio of C∶N wasthe highest at 0 km.2)The content of organic carbon was the highest in the east,the contents of total nitrogen was the highest in the east and the north,and the content of total phosphorus was the highest in the north.3)The contents of soil organic carbon was extremely significant positive correlation among the contents of total nitrogen,total phosphorus,the ratio of C∶N,C∶P,N∶P(P<0.01).The content of total nitrogen was extremely significant positive correlation among the contents of total phosphorus,the ratio of C∶P,N∶P (P<0.01).The ratio of C∶N was extremely significant positive correlation in the ratio of N∶P,and the ratio of C∶P was extremely significant postivie correlation with the ratio of N∶P (P<0.01).The ratio of C∶N was significant negative correlation with the ratio of N∶P (P<0.05).The highest contents of carbon,nitrogen and phosphorus in soil were the highest at 4.0 km,and the highest ratio of C∶P appeared at 4.0 km,the highest ratio of C∶N appeared at 0 km.In conclusion,soil phosphorus migration speed was slower,and dust produced by mining coal development promotes the inorganic carbon diffusion and transformation.
Last Update: 2018-10-24