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| Titel |
Spatio-temporal variations in soil moisture and physicochemical properties of a typical semiarid sand-meadow-desert landscape as influenced by land use |
| VerfasserIn |
L. Duan, T. Liu, X. Wang, G. Wang, L. Ma, Y. Luo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 15, no. 6 ; Nr. 15, no. 6 (2011-06-20), S.1865-1877 |
| Datensatznummer |
250012856
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| Publikation (Nr.) |
 copernicus.org/hess-15-1865-2011.pdf |
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| Zusammenfassung |
| 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. |
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