Soil Nutrient Characteristics in Typical Immigrant Region of Northwest Guangxi Province
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    Abstract:

    Five typicalland use types were chosen in the representative environmental immigrant region of Northwest Guangxi, China. Soil organic matter (SOM) and total and available nutrient contents were analyzed in the surface soil layer (0) 20cm). Results showed that in terms of the coefficient of the variation (CV) of soil nutrients, the contents of SOM, total N(TN), total P(TP), total K(TK), available N(AN),and available K(AK) had a moderate variability(0.1V1.0), except that available P(AP) content had a high variability(CV1.0). In general, SOM and TN contents were in a higher level, AN and AP contents were in a moderate level, TP and AK contents were in a low level, and TK content was in a lower level.Land use had an important effect on the change in soil nut rients. SOM,TN, and AN contents had a high level in shrubland and grassland and a moderate level in dry land and or char dland. SOM, TN, and AN co ntents had a high, moderate, and low levels in seco ndary forest land, respectively. TP, TK, A P, and AK contents had low and lower levels in five land use types except that AP had a moderate level in dry land and orchar dland. Land use change after immigration did not lead to obv io us soil deg radat ion due to effective soil and water conserv ation measures, but P and K nutrients were increased.

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陈洪松,侯娅,张伟,王克林.桂西北典型环境移民迁入区土壤养分特征分析[J].水土保持通报英文版,2010,(4):6-10

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History
  • Received:December 08,2009
  • Revised:March 22,2010
  • Adopted:
  • Online: November 26,2014
  • Published: