Yanbei Town of Yingde City in the northern Guangdong Province was selected as a typical site to investigate the soil and vegetation changes in the process of rock desertification.The results show that in the process of rock desertification from light grade to extreme high grade, the thickness of soil layer, the coverage of soil and the content of organic matter reduced significantly, the content of soil organic carbon reduced more in the primary stage of rock desertification than in the later stage, but the thickness of soil layer and the coverage of soil reduced more in serious stage than in the primary stage.The vegetation succession in the rocky area is towards xerophyte and rock plant in the process of rock desertification, and the structure of vegetation is getting more and more simple.The vegetation coverage and standing biomass reduced significantly.There exist significant negative correlations between the rate of uncovered rock and the thickness of soil layer, the coverage of soil, the content of organic matter, the vegetation coverage, and biomass.And there have significant positive correlations among other factors.
WEI Xing-Hu, LI Sen, LUO Hong-Bo, NIE Lei, LI Hui-Xia, HE Qiao-Ru
. Changes and Correlation of Soil and Vegetation in Process of Rock Desertification in Northern Guangdong Province[J]. SCIENTIA GEOGRAPHICA SINICA, 2008
, 28(5)
: 662
-666
.
DOI: 10.13249/j.cnki.sgs.2008.05.662
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