Distribution Characteristics of Soil Nutrients in Dam Land
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Distribution Characteristics of Soil Nutrients in Dam Land
Bulletin of Soiland Water ConservationVol. 24, Issue 2, Pages: 12-15(2005)
作者机构:
西北农林科技大学资源环境学院, 杨凌,陕西,712100
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Published:2005
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BAO Yao-xian, WU Fa-qi, TAN Hong-chao. Distribution Characteristics of Soil Nutrients in Dam Land[J]. Bulletin of Soiland Water Conservation, 2005, 24(2): 12-15.
DOI:
BAO Yao-xian, WU Fa-qi, TAN Hong-chao. Distribution Characteristics of Soil Nutrients in Dam Land[J]. Bulletin of Soiland Water Conservation, 2005, 24(2): 12-15.DOI:
Distribution Characteristics of Soil Nutrients in Dam Land
Based on comparative analysis on spatial temporal distribution characteristics of soil nutrients of typical dam land in Beigou small watershed of Yan. an City. The results showed that imbalance of soil nutrients was very serious in experimental area
and most soil nut rients were very poor
especially
soil organic matter
total Pand available P
but total K and available K were rich. The insignificant spatial and temporal differences in the soil organic matter
total N and total P were found
yet available nutrients were high-low-high from upper to lower and spatial temporal differences were significant on profile.In the light of these results
the theoretical evidences for balancing fertility of dam land are put forward.
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