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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (12): 48-51.doi: 10.11924/j.issn.1000-6850.casb16010053

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Soil Available Phosphorus Change of Caragana Microphylla Lam. with Different Stand Ages

  

  • Received:2016-01-12 Revised:2017-04-17 Accepted:2017-02-22 Online:2017-04-28 Published:2017-04-28

Abstract: The paper aims to research soil available phosphorus in different soil layers ofCaragana Microphylla Lam. forest, and provide a theoretical basis for further study soil property and regional vegetation construction in farming-pastoral zone in north China. Field investigation and laboratory analysis were used to analyze soil available phosphorus in different soil layers ofCaragana microphylla Lam with stand ages of 5, 11, 17, 23 and 29 years. The results showed that soil available phosphorus of the same stand age but different site conditions decreased with the increase of soil depth, which showed the order of dune lowland > shady slope > sunny slope; Soil available phosphorus of the same site condition but different stand ages increased with the increase of stand age. The cultivation ofCaragana microphylla Lam was conducive to the improvement of soil properties.