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Environmental Earth Sciences

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01-09-2012 | Original Article

Meadow saline soil changes in a marginal oasis, northwest China

Authors: Fang Wang, HongLang Xiao, Songbing Zou

Published in: Environmental Earth Sciences | Issue 1/2012

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Abstract

This research on an alluvial plain oasis in the middle reaches of the Heihe River used the trend estimation model of principal component analysis through fixed position experiments to investigate and analyze changes in saline meadow soil characteristics after reclamation of the oasis. The conclusion is that after cultivation for a number of years, clay content increased from 9.18% (before cultivation) to 12.93% (after 30 years of cultivation) and soil nutrient content increased as well, but available potassium decreased from 1,315.50 mg/kg (before cultivation) to 240.84 mg/kg (after 30 years of cultivation). As a result of engineering, biological, and agricultural methods, total salt content significantly decreased by 97.15% from 70.28 g/kg (before cultivation) to 2.00 g/kg (after 30 years of cultivation). Through the trend estimation model of principal components analysis (PCA), it was found that soil quality improved over time. Synthetic analysis of various indexes of soil quality revealed that meadow saline soil could be used for agricultural production with responsible tillage.

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Title: Meadow saline soil changes in a marginal oasis, northwest China
Authors: Fang Wang
HongLang Xiao
Songbing Zou
Publication date: 01-09-2012
Publisher: Springer-Verlag
Published in: Environmental Earth Sciences / Issue 1/2012
Print ISSN: 1866-6280
Electronic ISSN: 1866-6299
DOI: https://doi.org/10.1007/s12665-011-1505-y

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