Environmental Geology

, 50:911

Impact of land-use change on soil properties in a typical karst agricultural region of Southwest China: a case study of Xiaojiang watershed, Yunnan

  • Yong-Jun Jiang
  • Dao-Xian Yuan
  • Cheng Zhang
  • Ming-Sheng Kuang
  • Jian-Li Wang
  • Shi-You Xie
  • Lin-Li Li
  • Gui Zhang
  • Rao-Sheng He
Original Article

Abstract

Xiaojiang watershed is a typical karst agricultural region of Yunan Province, China. A case study of land-use changes documents changes of soil properties from 1982 to 2003. The results are as follows: (1) The total land use transformed covers 610.12 km2, of which land use changed from unused land into cultivated land and forestland, and forestland into cultivated land during the past 20 years in Xiaojiang watershed. (2) The rapid growth of population and economic development were the main driving forces of cultivated land increase. (3) Soil properties showed modification owing to different land-use changes. The contents of the soil organic matter, total nitrogen, and total phosphorus in 2003 were significantly lower than that in 1982 after the forestland and unused land were transformed into the cultivated land, but the soil pH increased significantly in 2003. Organic matter, total nitrogen, and total phosphorus for shorter-time reforestation land declined, but the pH increased. Soil properties have improved significantly after cropland was transformed into orchard land. The organic matter, total nitrogen, total phosphorus, available nitrogen, and available phosphorus declined significantly, but pH increased significantly after rock desertification.

Keywords

Land-use change Soil properties Typical karst agricultural region Yunnan Province China 

References

  1. Braimoh AK, Vlek PLG (2004). The impact of land-cover change on soil properties in northern Ghana. Land Degrad Dev 15:65–74CrossRefGoogle Scholar
  2. Cao J, Yuan D, Pan G (2003) Some soil features in karst ecosystem. Adv Earth Sci Chin 18(1):37–44Google Scholar
  3. Chen G, Gan L, Wang S (2001) A comparative study on the microbiological characteristics of soils under different land-use conditions from karst areas of Southwest China. Chin J Geochem 20(1):52–58CrossRefGoogle Scholar
  4. Dalal RC (1986) Long-term trends in fertility of soils under continuous cultivation and cereal cropping in Southern Queensland: II. Total organic carbon and its rate of loss from the soil profile. Soil Res 24:281–292CrossRefGoogle Scholar
  5. Islam KR, Weil RR (2000) Land use effects on soil quality in a tropical forest ecosystem of Bangladesh. Agric Ecosyst Environ 79:9–16CrossRefGoogle Scholar
  6. Lal R (1996) Deforestation and land-use effects on soil degradation and rehabilitation in Western Nigeria. I. Soil physical and hydrological properties. Land Degrad Dev 7:19–45CrossRefGoogle Scholar
  7. LeGrand HE (1984) Environmental problems in karst terranes. In: Burger A, Dubertret L (eds) Hydrogeology of karstic terrains, vol 1. IAH international contributions to hydrogeology, Hanover, pp 189–194Google Scholar
  8. Lichon M (1993) Human impacts on processes in karst terranes, with special reference to Tasmania. Cave Sci 20(2):55–60Google Scholar
  9. McAlister JJ, Smith BJ, Sanchez B (1998) Forest clearance: impact of landuse change on fertility status of soils from the Sao Francisco area of Niteroi, Brazil. Land Degrad Dev 9:425–440CrossRefGoogle Scholar
  10. Shepherd G, Bureh RJ, Gregory PJ (2000) Land-use affects the distribution of soil inorganic nitrogen in smallholder production systems in Kenya. Biol Fertil Soils 31:348–355CrossRefGoogle Scholar
  11. Turner BL II, Meyer WB (1991) Land use and land cover in global environmental change: considerations for study. Int Soc Sci 130:669–679Google Scholar
  12. Williams PW (1993) Karst terrains: environmental changes and human impact. Catena Suppl 25:268Google Scholar
  13. Yuan D (1988) Karst hydrogeology and karst environmental protection. In: Proceedings of the 21st congress IAH, pp 1261Google Scholar
  14. Yuan D (1993) Environmental change and human impact on karst in southern China. In: Williams PW (ed) Karst terrains: environmental changes and human impact, vol 25. Catena Supplement, pp 99–107Google Scholar
  15. Zhao Q (2002) The circulation of materials and control on red soil. Science Press, Beijing, pp 143–163Google Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Yong-Jun Jiang
    • 1
  • Dao-Xian Yuan
    • 1
    • 3
  • Cheng Zhang
    • 1
    • 3
  • Ming-Sheng Kuang
    • 1
  • Jian-Li Wang
    • 1
  • Shi-You Xie
    • 1
  • Lin-Li Li
    • 1
  • Gui Zhang
    • 2
  • Rao-Sheng He
    • 2
  1. 1.College of Resources and Environment ScienceSouthwest UniversityChongqingChina
  2. 2.Institute of Geology Investigation in Yunnan ProvinceKunmingChina
  3. 3.Institute of Karst GeologyCAGS, Karst Dynamics LaboratoryM L R GuilinChina

Personalised recommendations