干旱区生态环境知识资源中心(Arid): 喀斯特峡谷石漠化区6种常见植物叶片解剖结构与delta~(13)C值的相关性

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	喀斯特峡谷石漠化区6种常见植物叶片解剖结构与delta~(13)C值的相关性
其他题名	Relationship among Leaf Anatomical Characters and Foliar delta~(13)C Values of Six Woody Species for Karst Rocky Desertification Areas
	容丽; 王世杰; 杜雪莲; 俞国松
ISSN	1001-7488
出版年	2008
卷号	44 期号:10 页码:29-34
中文摘要	测定6种喀斯特峡谷石漠化区常见植物的delta~(13)C值并对相关植物叶片的解剖结构进行分析。结果表明：植物叶片解剖结构的各个特征在种间变化不同步,同化组织越厚,气孔密度越高,下角质层越厚,delta~(13)C值越正。不同植物种对植物delta~(13)C值影响的结构主导因子不同：构树为下角质层厚度,清香木为栅栏与海绵组织厚度比,石岩枫和野桐为栅栏组织厚度,八角枫和红背山麻杆没表现出主导因子。石漠化发生后,叶片结构表现出抗旱性增强、光合速率增加的趋势,同时叶片也表现出随石漠化强度增大delta~(13)C增大的趋势,显示植物的WUE增加。
英文摘要	It has been found that leaf anatomical characters would change with environmental factors. The function of leaf was associated with its structure, and its photosynthesis process would cause carbon isotope discrimination, especially. For analyzing the relationship between foliar delta~(13)C values in plants and their leaves anatomical characters, six species samples in karst rocky desertification areas were analyzed. The results showed that the leaves anatomical characters were different among those plant species in karst rocky desertification areas. Generally, the foliar delta~(13)C values increased with the thickness of assimilation tissue, the density of stomata, and the thickness of lower cuticle. Moreover, the correlation analysis indicated that the leading factors of anatomical characters were different. Namely, the leading factor of Broussonetia papyrifera was the thickness of lower cuticle, while that for Pistacia weinmannifolia was the ratio of palisade to sponge, and the leading factor of Mallotus repandus and Mallotus japonicus var. floccosus was the thickness of palisade layer. However, there was no leading factor for some species like Alangium chinense and Alchornea trewioides which would means more comprehensive influences acted on them. In generally, the drought resistance and photosynthesis ration of leaves increased with their structure characters in case of rocky desertification; and leaves delta~(13)C values increased with a stronger desertification degree which indicated the increasing of water use efficiency （WUE） in plants.
中文关键词	delta~(13)C值 ; 叶片解剖结构 ; 石漠化 ; 喀斯特峡谷
英文关键词	foliar delta~(13)C values leaf anatomical characters rocky desertification karst gorge
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:3420347
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222569
作者单位	中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 贵州 550002, 中国
推荐引用方式 GB/T 7714	容丽,王世杰,杜雪莲,等. 喀斯特峡谷石漠化区6种常见植物叶片解剖结构与delta~(13)C值的相关性[J],2008,44(10):29-34.
APA	容丽,王世杰,杜雪莲,&俞国松.(2008).喀斯特峡谷石漠化区6种常见植物叶片解剖结构与delta~(13)C值的相关性.,44(10),29-34.
MLA	容丽,et al."喀斯特峡谷石漠化区6种常见植物叶片解剖结构与delta~(13)C值的相关性".44.10(2008):29-34.