干旱区生态环境知识资源中心(Arid): 黔中喀斯特石漠化区不同土壤类型对常见植物叶片delta~(13)C值的影响

Arid

	黔中喀斯特石漠化区不同土壤类型对常见植物叶片delta~(13)C值的影响
其他题名	Effects of Different Soil Types on the Foliar delta~(13)C Values of Common Local Plant Species in Karst Rocky Desertification Area in Central Guizhou Province
	杜雪莲 1; 王世杰2 ; 罗绪强 2
来源期刊	环境科学
ISSN	0250-3301
出版年	2014
卷号	35 期号:9 页码:3587-3594
中文摘要	通过测定黔中喀斯特区清镇市王家寨小流域内常见种叶片delta~(13)C值,探讨土壤类型和石漠化等级对喀斯特植物水分利用效率的影响. 结果表明,小流域内不同土壤类型植物叶片的delta~(13)C值总体差异不显著(P>0.05),黄壤区植物叶片delta~(13)C值分布区间较黑色石灰土区窄,变异系数较小,整体较黑色石灰土区偏负. 小流域内黑色石灰土区植物群落delta~(13)C均值随石漠化进行趋正,黄壤区随石漠化呈现出先趋正后趋负的变化格局. 方差分析结果显示黄壤区各石漠化植物群落delta~(13)C值间不存在显著差异(P>0.05),黑色石灰土区各石漠化植物群落delta~(13)C值间均存在显著(P<0.05)或极显著差异(P<0.01). 相关分析结果显示黄壤区植物叶片delta~(13)C值的主要影响因子为土厚和坡度,黑色石灰土区为土壤含水量. 研究区土壤对植被delta~(13)C值的影响是通过调节土壤水分实现的.
英文摘要	By measuring the foliar delta~(13)C values of common local plant species grown in different soil types in Wangjiazhai catchments, a typical karst desertification area in Qingzhen City, Central Guizhou, we studied the impact of soil type and rocky desertification grade on the foliar delta~(13)C values. The results showed that the foliar delta~(13)C values were more negative in yellow soil area than those in black calcareous area and there was no obvious difference in foliar delta~(13)C values between these two soil types. The distribution interval of foliar delta~(13)C values in yellow soil area was narrower than those in black calcareous area and the variation coefficient of foliar delta~(13)C values in yellow soil area were smaller than those in black calcareous area. With increasing degree of karst rocky desertification, the foliar delta~(13)C values of plant community in black calcareous area increased, whereas those in yellow soil area first increased and then decreased. The result of multiple comparison showed that the difference in foliar delta~(13)C values of plant community among rocky desertification grade was not obvious in yellow soil area, but it was obvious in black calcareous area. Correlation analysis between the foliar delta~(13)C values of plant species and the main environmental factors indicated that slope and soil thickness were the main factors which affected the foliar delta~(13)C values of plants in yellow soil area and soil water contant was the main factor in black calcareous area. The impact of soil on the foliar delta~(13)C values was realized by adjusting the soil moisture in study area.
中文关键词	喀斯特石漠化 ; delta~(13)C值 ; 黄壤 ; 黑色石灰土 ; 水分利用效率
英文关键词	karst rocky desertification delta~(13)C values yellow soil black calcareous water use efficiency
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:5226453
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231356
作者单位	1.贵州财经大学资源与环境管理学院, 环境地球化学国家重点实验室, 贵阳, 贵州 550025, 中国; 2.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	杜雪莲,王世杰,罗绪强. 黔中喀斯特石漠化区不同土壤类型对常见植物叶片delta~(13)C值的影响[J],2014,35(9):3587-3594.
APA	杜雪莲,王世杰,&罗绪强.(2014).黔中喀斯特石漠化区不同土壤类型对常见植物叶片delta~(13)C值的影响.环境科学,35(9),3587-3594.
MLA	杜雪莲,et al."黔中喀斯特石漠化区不同土壤类型对常见植物叶片delta~(13)C值的影响".环境科学 35.9(2014):3587-3594.