干旱区生态环境知识资源中心(Arid): 喀斯特石漠化过程中土壤氮同位素组成及其空间分异特征

Arid

	喀斯特石漠化过程中土壤氮同位素组成及其空间分异特征
其他题名	NITROGEN ISOTOPE COMPOSITIONS AND SPATIAL DISTRIBUTION CHARACTERISTICS OF SOIL IN THE PROCESS OF KARST ROCKY DESERTIFICATION
	罗绪强 1; 王世杰1 ; 王程媛 1; 梁玉华 2; 廖昕荣 2; 杨鸿雁 2
来源期刊	核农学报
ISSN	1000-8551
出版年	2011
卷号	25 期号:6 页码:1235-1243
中文摘要	对喀斯特高原区贵州省清镇市王家寨峰丛洼地同一流域内不同类型石漠化、不同等级石漠化以及不同干扰方式石漠化表层土壤全氮的同位素组成及其空间分异特征进行了研究。结果表明：流域内黄壤区样地的表土全氮delta~15N值主要分布在+0.35%~+6.82之间，平均值为+4.50；黑色石灰土区样地的表土全氮delta~15N值主要分布在+2.70~+6.50之间，平均值为+4.27；无论是黄壤区样地还是黑色石灰土区样地，其表土全氮delta~15N值在各等级石漠化样地间、不同干扰方式环境下、甚至在不同坡位上都无显著性差异体现，两土壤类型间的总体差异也不显著(P≤0.05)，这主要与喀斯特区高度的生境异质性有关。
英文摘要	Isotopic composition and spatial distribution characteristic of the total nitrogen of the surficial soil in karst rocky desertification area, including different types, different grades and different disturbed modes karst rocky desertification within the same small catchment, which belong to the Wangjiazhai peak-cluster depression basin and located in Qingzhen City, Guizhou Province were discussed in this study. Results showed that delta~15 N values of total nitrogen in top soil in yellow soil area were mainly between + 0.35 ~ + 6.82 with the average of + 4.50, and between + 2.70 ~ + 6.50 in black calcareous with the average of + 4.27. In both yellow soil area and black calcareous area, there were no significant difference in the delta~15 N values of total nitrogen on sample lands of rocky desertification at different levels, different ways of interruption and different slope positions, and no obvious difference on the whole(P≤0.05), which is mainly due to the high habitat heterogeneity of karst area.
中文关键词	喀斯特石漠化 ; 表土 ; 氮同位素组成 ; 空间分异特征
英文关键词	karst rocky desertification surface soil composition of nitrogen isotope spatial distribution characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4403946
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226714
作者单位	1.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; 2.贵州师范学院地理与旅游学院, 贵阳, 贵州 550018, 中国
推荐引用方式 GB/T 7714	罗绪强,王世杰,王程媛,等. 喀斯特石漠化过程中土壤氮同位素组成及其空间分异特征[J],2011,25(6):1235-1243.
APA	罗绪强,王世杰,王程媛,梁玉华,廖昕荣,&杨鸿雁.(2011).喀斯特石漠化过程中土壤氮同位素组成及其空间分异特征.核农学报,25(6),1235-1243.
MLA	罗绪强,et al."喀斯特石漠化过程中土壤氮同位素组成及其空间分异特征".核农学报 25.6(2011):1235-1243.