Spatio-temporal variations in soil moisture and physicochemical properties of a typical semiarid sand-meadow-desert landscape as influenced by land use
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Published:2011-06-20
Issue:6
Volume:15
Page:1865-1877
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ISSN:1607-7938
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Container-title:Hydrology and Earth System Sciences
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language:en
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Short-container-title:Hydrol. Earth Syst. Sci.
Author:
Duan L.,Liu T.,Wang X.,Wang G.,Ma L.,Luo Y.
Abstract
Abstract. A good understanding of the interrelations between land cover alteration and changes in hydrologic conditions (e.g., soil moisture) as well as soil physicochemical properties (e.g., fine soil particles and nutrients) is crucial for maintaining the fragile hydrologic and environmental conditions of semiarid land, such as the Horqin Sandy Land in China, but is lacking in existing literature. The objectives of this study were to examine: (1) spatio-temporal variations of soil moisture and physicochemical properties in semiarid land; and (2) how those variations are influenced by land cover alteration. Using the data collected in a 9.71 km2 well-instrumented area of the Horqin Sandy Land, this study examined by visual examination and statistical analyses the spatio-temporal variations of soil moisture and physicochemical properties. The results indicated that for the study area, the soil moisture and physicochemical properties were dependent on local topography, soil texture, vegetation density, and human activity. Long-term reclamation for agriculture was found to reduce soil moisture by over 23 % and significantly (p-value < 0.05) lower the contents of soil organic matter, fine soil particles, and nutrients.
Publisher
Copernicus GmbH
Subject
General Earth and Planetary Sciences,General Engineering,General Environmental Science
Reference67 articles.
1. Abramowitz, M. and Stegun, I. A.: Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables (9th printing), Dover, New York, 1972. 2. Alamusa, A. and Jiang, D.: Characteristics of soil water consumption of typical shrubs (Caragana microphylla) and trees (Pinus sylvestris) in the Horqin Sandy Land area, China, Frontiers of Forestry in China, 4(3), 330–337, https://doi.org/10.1007/s11461-009-0047-x, 2009. 3. Amin, M. and Flowers, T. H.: Evaluation of kjeldahl digestion method, J. Res. (Science), 15(2), 159–179, 2004. 4. Awotoye, O. O., Ekanade, O., and Airouhudion, O. O.: Degradation of the soil physicochemical properties resulting from continuous logging of Gmelina arborea and Tectona grandis plantations, Afr. J. Agr. Res., 4(11), 1317–1324, 2009. 5. Bagan, H., Takeuchi, W., Kinoshita, T., Bao, Y., and Yamagata, Y.: Land cover classification and change analysis in the Horqin Sandy Land from 1975 to 2007, IEEE J. Sel. Top. Appl., 3(2), 168–177, https://doi.org/10.1109/JSTARS.2010.2046627, 2010.
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