干旱区生态环境知识资源中心(Arid): 粤北石漠化地区植被退化过程及其建模

Arid

	粤北石漠化地区植被退化过程及其建模
其他题名	Vegetation degradation and its modeling in rock desertification area of northern Guangdong,South China
	陆冠尧 1; 李森 2; 魏兴琥 1; 梁钊雄 1; 熊彦 1; 黄金国 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2013
卷号	32 期号:6 页码:1629-1635
中文摘要	在粤北石漠化地区选取不同石漠化阶段的样地,运用面上调查和定位观测相结合的方法,研究石漠化地区植被退化及构建其理论模型。结果表明:随石漠化程度的加深,粤北石漠化土地的植物群落结构越来越趋于简单,植被演替趋势为(黄连木、苎麻、黄荆、三裂叶野葛)(黄连木、青蒿、野菊)(五节芒、野古草、牛筋草)黄叶凤尾藓,群落层片从4层变为1层,物种减少比例从014%46%86%,土壤有机质、全氮、速效氮、速效磷和速效钾含量也随石漠化程度的加深呈极显著下降。植被演替退化可以用不同物种关于某种资源的竞争模型来描述,由此建立了粤北石漠化地区植被退化的模型。
英文摘要	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 communitys 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.
中文关键词	石漠化 ; 植被退化 ; 建模 ; 粤北
英文关键词	rock desertification vegetation degradation modeling northern Guangdong
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4852248
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230065
作者单位	1.佛山科学技术学院国土资源环境与旅游研究中心, 佛山, 广东 528000, 中国; 2.西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	陆冠尧,李森,魏兴琥,等. 粤北石漠化地区植被退化过程及其建模[J]. 西北师范大学,2013,32(6):1629-1635.
APA	陆冠尧,李森,魏兴琥,梁钊雄,熊彦,&黄金国.(2013).粤北石漠化地区植被退化过程及其建模.生态学杂志,32(6),1629-1635.
MLA	陆冠尧,et al."粤北石漠化地区植被退化过程及其建模".生态学杂志 32.6(2013):1629-1635.