Soil texture grade and mineral element of plantations with different ages on Loess plateau
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DOI：10.7606/j.issn.1000-7601.2006.06.21
Key Words: texture grade  residue  mineral element
Author NameAffiliation
ZHENG Shun-an College of Resources and Environment of Northwest A＆F University,Yangling,Shaanxi 712100,China 
CHANG Qing-rui College of Resources and Environment of Northwest A＆F University,Yangling,Shaanxi 712100,China 
QI Yan-bing College of Resources and Environment of Northwest A＆F University,Yangling,Shaanxi 712100,China 
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Abstract:
      This paper studied the textural composition and the content of mineral element in different classes and ages of plantation on Loess plateau.It can be observed that: ① The grown-up plantation contains more clay and less sand and silt than the under-age plantation,the difference is significant;② In contrast with under-age plantation,Al2O3,Fe2O3,TiO2,MnO2 and K2O in grwon-up plantation increases,SiO2 and CaO decreases;③ The content of mineral element is correlated with soil textural composition.
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