干旱区生态环境知识资源中心(Arid): 云南断陷盆地高原面典型小流域土壤元素含量特征

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	云南断陷盆地高原面典型小流域土壤元素含量特征
其他题名	Soil Element Contents of Typical Small Watershed in the Plateau Area of Karst Fault Basin, Yunnan
	杨慧 1; 朱同彬 1; 王修华 2; 蒲俊兵 1; 李建鸿 1; 张陶 1; 曹建华 1
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2018
卷号	27 期号:5 页码:859-865
中文摘要	岩溶断陷盆地是中国西南岩溶地区典型的生态脆弱区。其特殊的盆-山共存的地质分异构造制约着断陷盆地地貌演化过程和水土岩植的空间分异格局。为探明断陷盆地高原面土壤元素全量及有效态含量特征,以云南蒙自市断陷盆地高原面典型封闭落水洞小流域为研究对象,探讨了铜(Cu)、铁(Fe)、锰(Mn)、锌(Zn)、钙(Ca)、镁(Mg)、钾(K)、钠(Na)、磷(P)、铝(Al)、铬(Cr)、钴(Co)、镍(Ni)、镉(Cd)、铅(Pb)等15种常量与微量土壤元素的含量及微量元素有效态含量特征。结果表明,(1)石漠化较为严重地区的元素全量和有效态含量均较为离散,这与石漠化区土壤空间异质性有较大关系;受裸露岩石的聚集效应影响,石漠化较严重地区元素全量和有效态含量平均值均较高。(2)pH值仅与Co和Pb的有效态含量呈正相关关系,与其他元素的相关关系不显著,这可能与土壤元素的溶解度随pH值上升而逐渐下降,而元素的固定和吸附却随土壤pH值的上升而增加有关。SOC和TN与9种微量元素的有效态含量之间的关系一致,除与Cr的有效态含量相关关系不显著之外,与其余8种元素的有效态含量之间均呈极显著正相关关系,这主要是因为微量元素能与有机化合物结合成分子量小、呈离子态、简单而可直接为植物所吸收的络合态。该研究结果可为阐明断陷盆地石漠化与地质环境分异协同演变的关系提供基础数据。
英文摘要	The karst fault basin is a typical ecological fragile area in karst area of Southwest China. The geologic differentiation structure of the special basin-mountain restricts the landform evolution process of the fault basin and the spatial pattern of the water, soil, rock and plants. In order to study the total and available contents of soil major and trace elements in the plateau of the fault basin, copper (Cu), iron (Fe), manganese (Mn), zinc (Zn), calcium (Ca), magnesium (Mg), potassium (K), sodium (Na), phosphorus (P), aluminum (Al), chromium (Cr), cobalt (Co), nickel (Ni), cadmium (Cd) and lead (Pb) were studied in this paper. The results showed that, (1) The total and available contents of some elements were more discrete in more serious area of rocky dersertification, which was related to the spatial heterogeneity of the soil in the rocky desertification area. Affected by the aggregation effect of exposed rocks, the average values of the total and the available content of the elements in the more serious areas of rocky desertification were high. (2) The correlation between available contents of trace elements and pH, soil organic carbon (SOC) and total nitrogen (TN) respectively showed that pH value was positively related with Co and Pb while it was not significant among pH and other elements. This might follow soil elements solubility decreased with the increase of pH value, and the adsorption of elements increase with the increasing of pH value. Except Cr, the correlation between the available content of trace elements and the other 8 elements showed a significant positive correlation, this was mainly due to the trace elements and organic compounds in complex synthesis of small molecule that was a simple ion state could be directly absorbed by the plants. The results of this study can provide the basic data for clarifying the relationship between rocky desertification and geological and environmental differentiation in karst fault basin.
中文关键词	断陷盆地 ; 元素 ; 微量元素 ; 石漠化
英文关键词	karst fault basin elements trace elements rocky dersertification
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6247339
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238075
作者单位	1.中国地质科学院岩溶地质研究所;;联合国教科文组织国际岩溶研究中心, 国土资源部//广西岩溶动力学重点实验室;;, 桂林;;桂林, 广西;;广西 541004;;541004, 中国; 2.中国地质科学院岩溶地质研究所;;中国地质大学(北京)水资源与环境学院, 国土资源部//广西岩溶动力学重点实验室;;, 桂林;;, 广西;;北京 541004;;100083, 中国
推荐引用方式 GB/T 7714	杨慧,朱同彬,王修华,等. 云南断陷盆地高原面典型小流域土壤元素含量特征[J],2018,27(5):859-865.
APA	杨慧.,朱同彬.,王修华.,蒲俊兵.,李建鸿.,...&曹建华.(2018).云南断陷盆地高原面典型小流域土壤元素含量特征.生态环境学报,27(5),859-865.
MLA	杨慧,et al."云南断陷盆地高原面典型小流域土壤元素含量特征".生态环境学报 27.5(2018):859-865.