ZHU Linfeng, ZHANG Yuqing, QIN Shugao, et al. Spatial Heterogeneity of Soil Moisture and Vegetation Characteristics in Artemisia Ordosica Community at Different Succession Stages[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 58-63.
DOI:
ZHU Linfeng, ZHANG Yuqing, QIN Shugao, et al. Spatial Heterogeneity of Soil Moisture and Vegetation Characteristics in Artemisia Ordosica Community at Different Succession Stages[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 58-63. DOI: 10.13961/j.cnki.stbctb.2015.06.010.
Spatial Heterogeneity of Soil Moisture and Vegetation Characteristics in Artemisia Ordosica Community at Different Succession Stages
[Objective] The research investigated the spatial patterns of soil moisture and the responses of vegetation in Artemisia ordosica community at different succession stages(shifting dunes
semi-fixed dunes and fixed dunes) in order to provide scientific basis for vegetation restoration in desert region.[Methods] The experiment was conducted in three Artemisia ordosica communities and the data were analyzed by classical statistical and geo-statistical method.[Results] (1) In the succession of shifting dunes to fixed dunes
soil moisture of Artemisia ordosica community was gradually getting worse. And the spatial distribution of soil moisture was obviously characterized by a strip-like or patchy structure; Meanwhile the spatial variability of soil moisture was increasing. The spatial autocorrelation of soil moisture gradually increased with the increase of soil depth in all three Artemisia ordosica communities.(2) In the revegetation process
community coverage
biomass and density gradually increased
while spatial variation of community characteristics decreased.(3) Community characteristics of Artemisia ordosica had significantly negative correlation with soil moisture in shifting dunes and fixed dunes.[Conclusion] Vegetation pattern of Artemisia ordosica largely influenced the spatial distribution and heterogeneity of soil moisture.
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references
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