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[1]ZHANG Qing-hai,LIN Chang-hu,LU Yang,et al.Variability of Soil Nitrogen and Phosphorus in Western Guizhou Karst Rocky Desertification Area[J].Research of Soil and Water Conservation,2009,16(02):265-268.

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Variability of Soil Nitrogen and Phosphorus in Western Guizhou Karst Rocky Desertification Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 02 Page number: 265-268 Column: Public date: 2009-04-20

Title:: Variability of Soil Nitrogen and Phosphorus in Western Guizhou Karst Rocky Desertification Area

Author(s):: ZHANG Qing-hai¹, LIN Chang-hu², LU Yang¹, HE Teng-bing³; 1. Guizhou Research Center of Physical Test and Chemical Analysis, Guiyang, 550002, China;
2. Guizhou Academy of Sciences, Guiyang, 550001, China;
3. Guizhou University, Guiyang, 550025, China

Keywords:: the west of Guizhou province; rocky desertification; soil nitrogen and phosphorus; variation

CLC:: S153.61

DOI:: -

Abstract:: The west of Guizhou province is rocky and desertified.In karst rocky desertified area,analysis on soil nitrogen and phosphorus has certain significance in proving the ecology and restoring the rocky,deserted environment.With this background,the authors gathered soil in various degree of rocky,desertified areas and different use ways,then carried out physics and chemical analysis.The results show that,the quantity of soil organic matter,total N,total P and rapidly available phosphorus are low,and it is the highest in areas without obvious rocky desertification.The more obvious the rocky desertification degree is,the lower the quantity of soil organic matter,total N,total P and rapidly available phosphorus is.But the quantity of soil organic matter and total N are enhanced in the intensity rocky desertification area.Under the different use ways,the quantity of soil organic matter,total N and total P is the highest in the forest land soil,and it reduces along with the vegetation coverage fraction reduction and also it reduces along with the cultivation ratio enhancement.

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