黄河口滨岸潮滩湿地土壤碳、氮的空间分异特征

	黄河口滨岸潮滩湿地土壤碳、氮的空间分异特征
其他题名	Spatial Distribution Patterns of Carbon and Nitrogen in the Tidal Marsh Soil of the Yellow River Estuary
	牟晓杰 ; 孙志高 ; 刘兴土
发表期刊	地理科学
ISSN	1000-0690
	2012-12-15
卷号	32 期号:12 页码:1521-1529
关键词	黄河口潮滩湿地碳与氮空间异质性空间分布格局
产权排序	中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室;中国科学院烟台海岸带研究所海岸带环境过程重点实验室;中国科学院研究生院;
通讯作者	孙志高 zgsun@yic.ac.cn
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	2009年5月,运用地统计学方法研究了黄河口滨岸潮滩湿地土壤碳、氮的空间分布格局。结果表明,潮滩湿地土壤的TC、TN和C/N含量具有明显的水平变异性,自表层向下均呈显著降低趋势,总体表现为TN>C/N>TC。潮滩湿地土壤不同土层TN和C/N含量的水平分布空间结构明显,分别符合不同的变异函数理论模型,且具有强烈/中等程度的空间相关性,其空间变异性均以向低潮滩延伸且受潮汐涨落影响较大的方向为最大,自然结构因素在引起TN和C/N空间异质性中的贡献占优,随机因素的影响相对较小。潮滩湿地土壤不同土层TN和C/N具有明显的空间分布格局,表层土壤的TN含量向低潮滩延伸方向形成明显斑块低值区,边缘则形成斑块高...
中文摘要	In May 2009, the spatial distribution patterns of carbon and nitrogen contents in the tidal marsh soil of the Yellow River estuary were studied by geostatistic methods. Results showed that the horizontal variability of TC, TN and C/N in the tidal marsh was significant and decreased with depths, in the order of TN> C/N> TC. The horizontal distribution of TN contents and C/N in different soil layers had significant spatial structure, which accorded with different variogram theoretical model and had a strong or moderate spatial correlation. The maximum spatial variability was observed in the direction extending to the low tidal marsh, which was greatly affected by the ebb and flow of tide. The natural structure factors had significant effects on the spatial variability, while the effects of random factors were relatively low. The spatial distribution patterns of TN contents and C/N in different soil layers were significant, the low TN contents in topsoil was generally observed in the direction extending to the low tidal marsh and the high value appeared on the edge of the study area, while the C/N ratio of the different soil layers and the TN content in subsurface layer were opposite. This study indicated that micro-physiognomy characteristic and tidal micro-domain physical disturbance were two important random factors to induce spatial heterogeneity, while water and salinity statuses, soil types and tide physical disturbance were three important structure factors. The sources of organic matter in the tidal marsh were mainly land-based sources, and the effects of land-based sources on organic matter in the tidal marsh were greater in the direction closer to the sea.
资助机构	国家自然科学基金(41171424);; 国家海洋局海洋公益性行业科研专项经费项目子课题(2012418008-3);; 山东省自然科学基金重点项目(ZR2010DZ001);; 中国科学院战略性先导科技专项(XDA05030404);; 中国科学院人才专项(青年创新促进会);; 中国科学院知识创新工程重要方向项目(KZCX2-YW-223)资助
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:4733038
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/5798
专题	中国科学院海岸带环境过程与生态修复重点实验室
推荐引用方式 GB/T 7714	牟晓杰,孙志高,刘兴土. 黄河口滨岸潮滩湿地土壤碳、氮的空间分异特征[J]. 地理科学,2012,32(12):1521-1529.
APA	牟晓杰,孙志高,&刘兴土.(2012).黄河口滨岸潮滩湿地土壤碳、氮的空间分异特征.地理科学,32(12),1521-1529.
MLA	牟晓杰,et al."黄河口滨岸潮滩湿地土壤碳、氮的空间分异特征".地理科学 32.12(2012):1521-1529.

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