Scientia Agricultura Sinica ›› 2007, Vol. 40 ›› Issue (8): 1697-1702 .

• SOIL & FERTILIZER·WATER-SAVING IRRIGATION • Previous Articles     Next Articles

Regional Variability of Soil Properties under Different Land Use systems

  

  1. 中国农业科学院农业资源与农业区划研究所/农业部资源遥感与数字农业重点开放实验室，
  • Received:2007-02-05 Revised:2007-04-02 Online:2007-08-10 Published:2007-08-10

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Abstract: Taking Shou Yang County and Dan Ling County as study areas, through analyzing soil samples collected at the depth of 60cm for each land use system, we have investigated the regional variability of soil properties related to different land use systems and evaluated the effects of human activities on change of soil properties. The Microsoft Excel and SPSS softwares are employed to analyze the soil property data. The results show us that: (1) Influence of land use systems on soil properties is significant. In both areas, soil properties decrease as change of land use systems with the sequence ”natural forest—scrub land—forest platation—cropland”, which implies that soils in slightly human-disturbed land use systems presents a higher fertility level than those of strongly human-disturbed land use systems. (2) Soil properties under different land use systems show a distinct regional variability. Soils in strongly human-disturbed region have a lower soil values than those of slightly human-disturbed region as a whole. (3) Even in the same land use system, different cropping system and site management measure ( irrigation, fertilizer, pesticide) can lead to the regional heterogeneity in soil properties. Regional variability of soil properties under different land use systems discloses the regional variability of effects of humans on environment, and explains the complex relations between human society and nature.

Key words: land use system, soil property, regional, variability, human activity

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