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Publication Type CH
Authors Gu, F. X., Y. Chu, Y. D. Zhang, Y. Q. Liu, S. Anabiek, Q. Ye and X. L. Pan
Book Author X. L. Pan, W. Gao, M. H. Glantz and Y. Honda
Editors X. L. Pan, W. Gao, M. H. Glantz and Y. Honda
Title Spatial and temporal dynamics of soil moisture and salinity in typical plant communities of Sangonghe Basin
Source Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land, Pts 1 and 2
Author Keywords arid land soil moisture and salinity spatial and temporal dynamics distribution of plant communities
Abstract Soil moisture, salinity, ground water table and salt concentration were measured monthly in seven typical plant communities for one year in Sangonghe basin of Xinjiang. Temporal dynamics of soil water and salinity during growing season were compared within these communities. The dominant species in each of these communities were Suaeda physophora, Reaumuria soongorica, Anabasis aphylla and Kalidium foliatum, Tamarix ramosissima, Alhagi pseudalhagi and Haloxylon ammodendron respectively. Results show that soil water content and salinity were significantly different among all these communities. In the edge of alluvial fan and low reaches of the river, ground water table was high, soil profile was moist, and salt concentrated in the soil upper layers and surface. Soils were all saline with dominant species of T. ramosissima, A. aphylla and K. foliatum. In the plain area, communities were dominated by R. soongorica and S. physophora Ground water table was generally low, but soil surface and up layer contained high salt concentration. Soil here belonged to strong to medium salinized soil. In ecotone, ground water table increased due to the irrigation in the nearby oasis. From soil surface to deep layers, water content increased gradually with no salt accumulation for all the layers. Vegetation in ecotone was stable and dominated by A. pseudalhagi. In intervale of desert, ground water table was very deep and soil was very dry throughout of the profile. There were no significant differences in vertical and temporal change of soil moisture. Communities were dominated by H. ammodendron. Spatial and temporal dynamics of the soil moisture and salinity caused community subrogation, and were the two main factors that affected distribution and succession of plant communities.
Author Address Xinjiang Univ, Coll Resources & Environm Sci, Urumqi 830046, Xinjiang, Peoples R China. Pan, XL (reprint author), Xinjiang Univ, Coll Resources & Environm Sci, Shengli Rd 14, Urumqi 830046, Xinjiang, Peoples R China.
ISSN 0-8194-4676-9
ISBN 0-8194-4676-9
Year Published 2003
Volume 4890
Beginning Page 471-479
Digital Object Identifier (DOI) 10.1117/12.465997
Unique Article Identifier WOS:000184693700054
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