干旱区生态环境知识资源中心(Arid): 岩溶石漠化区不同植被类型表土孢粉组合特征----以重庆市南川区南平镇石漠化区为例

Arid

	岩溶石漠化区不同植被类型表土孢粉组合特征----以重庆市南川区南平镇石漠化区为例
其他题名	Features of spore-pollen assemblage in topsoil under different vegetation types in karst desert----A case in Nanping Town, Nanchuan District, Chongqing
	郝秀东 1; 谢世友 2; 欧阳绪红 1; 罗伦德 1; 石胜强 1; 李林立 1; 孙爱芝 1; 赵增友 1
来源期刊	中国岩溶
ISSN	1001-4810
出版年	2010
卷号	29 期号:3 页码:301-311
中文摘要	通过对南平次生林地,杂草丛,坡耕地不同植被类型表土调查和采样,利用LuoPacias孢粉鉴定系统对所采的表土样品进行分析鉴定,以研究该区表土的孢粉组合特征.结果显示:(1)样品植物孢粉共由123种植物组成,其中以草本和蕨类植物占据优势,其孢粉含量为46.40%76.47%,平均为65.55%,其次是乔木(主要为马尾松),花粉含量为17.73%46.84%,平均为26.40%,灌木植物花粉含量最小,为5.79%12.50%,平均为8.26%,显示该区植被退化严重;(2)不同植被类型的表土孢粉组合差别明显,次生马尾松林和次生樟树林的孢粉组合特征依次为马尾松--火棘--大楼梯草--里白和樟树--火棘--构棘--泽芹;杂草丛为裂叶荨麻--圆叶藜--车前子--里白;坡耕地为异叶花椒--裂叶荨麻--剑叶凤尾蕨--玉米,与其相应的实际植被情况大致相同,较好地反映出了石漠化地区现代植被的基本状况
英文摘要	Through survey and sampling to the topsoil under secondary forests, weeds and slope farmlands in Nanping, spore-pollen is identified by means of LuoPacias method to study the features of the spore-pollen assemblage. The result shows that:(1) the spore-pollen is composed of 123 species, among which, herbs and ferns dominate in quantity with the spore-pollen content of 46.40%~76.47% and averaged 65.55%;the arbors(mainly Pinus massoniana Lamb.) takes the 2nd place with the content about 17.73%~46.84% and averaged 26.40%;and the shrub spore-pollen is the least, about 5.79%~12.50% in content and averaged 8.26%, that indicating a serious degradation of local vegetation;(2) there is obvious differentiation in different vegetation types. The spore-pollen assemblages of the secondary masson pine forest and the secondary camphor forest are listed as Pinus massoniana Lamb.-Pyracantha fortuneana Li.-Elatostema umbellatum Bl.-Hicriopteris glauca Thunb.and Cinnamomum camphora L.-Pyracantha fortuneana Li.-Cudrania cochinchinensis L.-Sium suave Walt.respectively;the spore-pollen assemblage of weeds is Urtica fissa Pritz.-Chenopodium acuminatum Plantago asiatica L.-Hicriopteris glauca Thunb.;the pollen assemblage of the slope farmland is Zanthoxylum dimorphoppyllum Hemsl.-Urtica fissa Pritz.-Pteris ensiformis Burm.-Zea mays L., which corresponding to the actual vegetation and reflecting the present conditions of the modern vegetation cover in the karst desert
中文关键词	表土孢粉组合 ; 石漠化 ; 植被 ; 岩溶 ; 重庆南平
英文关键词	spore-pollen assemblage in topsoil rocky desert vegetation cover karst Nanping in Chongqing
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:4048139
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226085
作者单位	1.西南大学地理科学学院, 重庆 400715, 中国; 2.西南大学地理科学学院, 三峡库区生态环境教育部重点实验室, 重庆 400715, 中国
推荐引用方式 GB/T 7714	郝秀东,谢世友,欧阳绪红,等. 岩溶石漠化区不同植被类型表土孢粉组合特征----以重庆市南川区南平镇石漠化区为例[J],2010,29(3):301-311.
APA	郝秀东.,谢世友.,欧阳绪红.,罗伦德.,石胜强.,...&赵增友.(2010).岩溶石漠化区不同植被类型表土孢粉组合特征----以重庆市南川区南平镇石漠化区为例.中国岩溶,29(3),301-311.
MLA	郝秀东,et al."岩溶石漠化区不同植被类型表土孢粉组合特征----以重庆市南川区南平镇石漠化区为例".中国岩溶 29.3(2010):301-311.