Environmental Monitoring and Assessment

, Volume 139, Issue 1, pp 195–204

Effects of land use on phosphorus loss in the hilly area of the Loess Plateau, China

Authors

  • Qinghua Meng
    • Academy of Forest Inventory and PlanningState Forestry Administration
    • State Key Lab. of Urban and Regional Ecology, Research Center for Eco-Environmental SciencesChinese Academy of Sciences
  • Xiaoping Tang
    • Academy of Forest Inventory and PlanningState Forestry Administration
  • Hongchang Ren
    • Academy of Forest Inventory and PlanningState Forestry Administration
Article

DOI: 10.1007/s10661-007-9826-8

Cite this article as:
Meng, Q., Fu, B., Tang, X. et al. Environ Monit Assess (2008) 139: 195. doi:10.1007/s10661-007-9826-8

Abstract

The hilly area of Loess Plateau has some of the highest soil erosion rates in the world, and serious soil erosion causes great losses of plant nutrients. As the most common land use in Loess Plateau, slope farmland contributed most of the erosion soils. This study was designed to examine the effects of land use and slope angle of farmland on phosphorus (P) loss in the hilly area of loess plateau. Farmland (FR), barrenland (BR), and four forest treantment (seabuckthorn+ poplar (SP), immature seabuckthorn (IS), mature seabuckthorn (MS), immature Chinese pine (ICP)) were the types of land use; 10, 15, 20, 25, 30 degrees were the slope angles of FR that were compared. The results showed a larger proportion of P loss occurred in erosion soil fraction of FR, ICP, ICP, and the five slope treatments of FR; in SP, IS, and MS, P loss was primarily through runoff. FR produced more P loss than SP, IS, ICP, BR, and MS. 20∼30 degrees may be the slope ranges for P loss of FR; FR in this ranges would loss more P with soil erosion. SP, IS, and MS were reasonable land uses for their less runoff, soil loss, and P loss. Farmlands over 15 degrees should be abandoned or reforested for it would produce more runoff, soil loss, and P loss.

Keywords

Land useSoil erosionP lossHilly areaLoess Plateau
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© Springer Science+Business Media B.V. 2007