干旱区生态环境知识资源中心(Arid): 鄱阳湖沙化地区不同下垫面土壤水分动态

Arid

	鄱阳湖沙化地区不同下垫面土壤水分动态
其他题名	Soil Moisture Dynamics Under Different Underlying Surfaces in Sandy Land of Poyang Lake
	李兰晖 1; 丁明军 2; 郑林 2; 廖凯涛 1
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2014
卷号	34 期号:2 页码:213-217
中文摘要	土壤水分状况是沙化防治,固沙植物选育,退化生态系统修复与重建的重要参考指标。基于野外实测数据对鄱阳湖典型沙化地区不同下垫面类型(7年生湿地松、4年生湿地松、草地、裸沙地)土壤水分(0-80cm)的动态变化进行了分析。结果表明:(1)不同下垫面土壤平均体积含水量大小顺序依次为:4年生湿地松(5.22%)>草地(4.88%)>7年生湿地松(4.01%)>裸沙地(2.95%)。(2)不同下垫面不同深度的土壤水分年内均表现为中等变异程度。其中,4年生湿地松变异程度最高,裸沙地最低。(3)不同时期,4种下垫面土壤水分在垂直方向上的变异程度存在差异,变异系数在8月份最大,10-12月份次之,3-6月份最小;相对于裸沙地,除8和10月份外,有植被覆盖的土壤水分在垂直方向上的变异程度较低。
英文摘要	Soil moisture is an important refereed index for controlling desertification,breeding sand fixing plants,restoring and reconstructing degraded ecosystem.Soil moisture dynamics(0-80cm)under different underlying surfaces(7-year-old Pinus elliotii,4-year-old Pinus elliotii,grassland and bare sandy land)in the sandy land of the Poyang Lake were measured and analyzed.Results are as follows:(1)The underlying surfaces, in order of decreasing average soil moisture content,were 4-year-old Pinus elliotii(5.22%),grassland (4.88%),7-year-old Pinus elliotii(4.01%)and bare sandy land(2.95%).(2)All of the annual soil moisture contents at different depths under different underlying surfaces showed moderate variation.The variation coefficient under the 4-year-old Pinus ellioti was the highest,while that under the bare sandy land was the lowest.(3)There were seasonal changes in the vertical variation coefficients of soil moisture content under different underlying surfaces.The variation coefficients in August were the highest,followed by those from October to December.The smallest variation coefficients were observed from Match to June.Apart from August and October,the vertical variation coefficients for the underlying surfaces with vegetation coverage were lower than those of the bare sandy land.
中文关键词	沙化地区 ; 下垫面 ; 土壤水 ; 鄱阳湖
英文关键词	sandy land underlying surface soil moisture Poyang Lake
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:5153826
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231724
作者单位	1.江西师范大学地理与环境学院, 南昌, 江西 330022, 中国; 2.江西师范大学地理与环境学院, 鄱阳湖湿地与流域研究教育部重点实验室, 南昌, 江西 330022, 中国
推荐引用方式 GB/T 7714	李兰晖,丁明军,郑林,等. 鄱阳湖沙化地区不同下垫面土壤水分动态[J],2014,34(2):213-217.
APA	李兰晖,丁明军,郑林,&廖凯涛.(2014).鄱阳湖沙化地区不同下垫面土壤水分动态.水土保持通报,34(2),213-217.
MLA	李兰晖,et al."鄱阳湖沙化地区不同下垫面土壤水分动态".水土保持通报 34.2(2014):213-217.