干旱区生态环境知识资源中心(Arid): 风蚀区~(137)Cs与有机质剖面分布及其关系---以新疆准东地区为例

Arid

	风蚀区~(137)Cs与有机质剖面分布及其关系---以新疆准东地区为例
其他题名	Distribution of ~(137)Cs and Soil Organic Matter Contents in Wind Erosion Zone: A Case Study in the East Junggar Basin,Xinjiang
	赵来朋 1; 樊梦成 2; 胥鹏海 3; 丁肇龙 1; 刘巍 1; 杨建军 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:5 页码:1097-1104
中文摘要	通过对新疆准东地区沙地、裸地、戈壁、耕地和草地进行土样采集,分析了土壤~(137)Cs和有机质的分布特征,估算各土地利用类型的土壤侵蚀量并对其进行验证,同时探讨~(137)Cs与有机质之间的关系。结果发现:非耕地土壤~(137)Cs基本分布在地表15 cm以内,耕地土壤~(137)Cs主要分布在犁耕层;非耕地~(137)Cs均随土壤深度的增加呈下降趋势,耕地呈现均匀分布;草地土壤有机质随土壤深度增加呈减少趋势,戈壁和裸地有机质含量变化不明显,耕地有机质含量呈均匀状态分布;各土地利用类型下~(137)Cs含量总体表现为:草地>固定沙地>戈壁>耕地>裸地>半固定沙地,而有机质含量呈现为:草地和耕地>戈壁>固定沙地>半固定沙地和裸地。各样点利用~(137)Cs示踪法估算土壤侵蚀速率之间的差异,~(137)Cs示踪技术在风蚀地区测定的土壤风蚀并不可靠。准东土壤~(137)Cs与有机质呈现为弱相关或不相关,在准东风蚀区用~(137)Cs监测土壤有机质动态的效果并不明显。
英文摘要	The effect of SOC caused by soil erosion has become as a focus in the study of carbon cycle in arid area. The relationship between ~(137)Cs and soil organic carbon can be used to monitor SOM and to provide the references for preventing and controlling nutrient loss in arid area. Soil samples were collected at 2 cm depth interval from sandy land,bare land,Gobi desert, steppe and arable land in the east Junggar Basin,Xinjiang. The SOM and ~(137)Cs of soil samples were measured,and the ~(137)Cs tracer method was used to estimate the soil erosion rates of five different land use types. Synchronously, the relationship between SOM and soil ~(137)Cs in different land use types was discussed. The results showed that ~(137)Cs was basically distributed within 15cm of non-arable soil depth,and mainly in plough layer of cultivated land. The ~(137)Cs was decreased with the increase of soil depth in non-cultivated land,and there was a uniform distribution in the farmland. The SOM of steppe was in a decrease trend with the increase of soil depth. The change of organic matter content in Gobi desert and bare land was not significant,and the organic matter content in cultivated land was distributed uniformly. The total ~(137)Cs content was in an order of steppe > fixed sandy land > Gobi desert > cultivated land > bare land > semi-fixed sandy land,and the organic matter content was in an order of steppe and cultivated land > Gobi desert > fixed sandy land > semi-fixed sandy land and bare land. The soil erosion rates estimated by ~(137)Cs tracer method were quite different from the different sampling sites. The differences between the values of wind erosion determined by the ~(137)Cs tracer technique and the actually measured results were significant. There was a weak or no correlation between soil ~(137)Cs and organic matter content in the east Junggar Basin.
中文关键词	风蚀区 ; 有机质 ; 土地利用类型 ; 土壤侵蚀速率 ; 准东地区 ; 新疆
英文关键词	~(137)Cs wind erosion zone ~(137)Cs SOC land use type soil erosion rate east Junggar Basin Xinjiang
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:6334388
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237677
作者单位	1.新疆大学资源与环境科学学院;;教育部绿洲重点实验室, ;;教育部绿洲重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830046;;830046, 中国; 2.新疆维吾尔自治区发展和改革委员会, 乌鲁木齐, 新疆 830002, 中国; 3.陕西中圣环境科技发展有限公司, 西安, 陕西 710043, 中国
推荐引用方式 GB/T 7714	赵来朋,樊梦成,胥鹏海,等. 风蚀区~(137)Cs与有机质剖面分布及其关系---以新疆准东地区为例[J]. 新疆大学,2018,35(5):1097-1104.
APA	赵来朋,樊梦成,胥鹏海,丁肇龙,刘巍,&杨建军.(2018).风蚀区~(137)Cs与有机质剖面分布及其关系---以新疆准东地区为例.干旱区研究,35(5),1097-1104.
MLA	赵来朋,et al."风蚀区~(137)Cs与有机质剖面分布及其关系---以新疆准东地区为例".干旱区研究 35.5(2018):1097-1104.