生态学杂志2013，Vol.32Issue(6)：1629-1635,7.
粤北石漠化地区植被退化过程及其建模
Vegetation degradation and its modeling in rock desertification area of northern Guangdong, South China
摘要
Abstract
In this paper,site investigation and fixed position observation were conducted in the sampling plots with four different stages of rock desertification in rocky desertification area of northern Guangdong to study the vegetation degradation and its modeling in rocky desertification area.With the development of rocky desertification,the plant community structure in the study area became increasingly simpler,with the dominant plant species evolved from Pistacia chinensis + Boehmeria nivea + Vitex negundo + Pueraria phaseoloides to Pistacia chinensis + Artemisia carvifolia + Dendranthema indicum to Miscanthus floridulus + Arundinella anomala + Eleusine indica to Fissidens zippelianus.The community' s layer was from 4 layers to 3 layers to 2 layers to 1 layer,and the proportion of species reduction was from 0 to 14％ to 46％ to 86％.The soil organic matter,total N,available N,available P,and available K contents were all decreased significantly with the development of rocky desertification.Vegetation degradation could be described by the competition models of different species to certain kinds of resources,and thus,a model was established for the vegetation degradation in rocky desertification area of northern Guangdong.关键词
石漠化/植被退化/建模/粤北Key words
rock desertification / vegetation degradation / modeling/ northern Guangdong分类
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陆冠尧,李森,魏兴琥,梁钊雄,熊彦,黄金国..粤北石漠化地区植被退化过程及其建模[J].生态学杂志,2013,32(6):1629-1635,7.基金项目
广东高校优秀青年创新人才培养计划项目(LYM11126)、广东省自然科学基金项目(S2012010009272)、国家自然科学基金项目(31170486)和广东省哲学社会科学十二五规划项目(GD12CGL01)资助. （LYM11126）
