[1]芦晓峰,熊智,张亦舒,等.辽河河口芦苇湿地沉积物中有机质含量的时空变化[J].水土保持研究,2017,24(05):69-78.
　LU Xiaofeng,XIONG Zhi,ZHANG Yishu,et al.Spatial and Temporal Variability of Organic Matter Quality of Sediment in Reed (Phragmites australis) Wetland of the Liaohe Estuary[J].Research of Soil and Water Conservation,2017,24(05):69-78.
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辽河河口芦苇湿地沉积物中有机质含量的时空变化

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年05期 页码: 69-78 栏目: 出版日期: 2017-10-28
Title:
Spatial and Temporal Variability of Organic Matter Quality of Sediment in Reed (Phragmites australis) Wetland of the Liaohe Estuary
作者:
芦晓峰1, 熊智1, 张亦舒1, 刘冰2, 王铁良1
1. 沈阳农业大学 水利学院, 沈阳 110866;
2. 辽宁环境监测试验中心, 沈阳 110161
Author(s):
LU Xiaofeng1, XIONG Zhi1, ZHANG Yishu1, LIU Bing2, WANG Tieliang1
1. College of Water Conservancy, Shenyang Agricultural University, Shenyang 110866, China;
2. Liaoning Provincial Environmental Monitoring Center, Shenyang 110161, China
关键词:
芦苇湿地; 沉积物; 有机质; 时间; 空间
Keywords:
wetland; sediment; organic carbon matter; spatial variation; temporal variation
分类号:
S153.6+2
摘要:
以辽河河口芦苇湿地为研究对象，对湿地土壤沉积物中有机质含量的变化规律进行研究，分别研究了湿地沉积物中有机质（SOM）在时间、空间上的变化规律。结果表明：时间变化上，近河区和远河区的芦苇湿地沉积物中SOM含量受时间影响显著，其中在9月份和10月份SOM含量较高，9月份SOM含量出现最大值。空间变化上，纵向上只有表层0—10 cm深度和其他深度（10—20 cm，20—30 cm，30—40 cm，40—50 cm）以及10—20 cm与40—50 cm深度的SOM含量上有显著的差异，其他深度间差异并不明显。远河区湿地沉积物在4月、5月、6月、9月、10月份时，0—10 cm和10—20 cm深度的沉积物中SOM含量较高，最大值多数在0—10 cm深度的沉积物上。在7月份和8月份时，0—10 cm深度沉积物的SOM含量最低。近河区湿地沉积物中SOM含量变化与远河区相比有差异，在4月、5月、6月、7月、8月份时受地表径流影响较为明显，SOM含量的最大值并不显著，各深度间SOM含量相差不大，20—40 cm深度的SOM含量略高。在9月、10月份，SOM最大值在0—10 cm深度的沉积物上，其他深度SOM含量相差不大。并且纵向上各深度间的SOM含量存在着线性相关关系。横向上在S1—3与S2—3位于缓冲区与试验区的交界处，SOM含量较高；S1—6与S2—6和S2—7位于缓冲区与核心区的交界附近且SOM含量较高，这些点的SOM含量均远高于其他各点的SOM含量。通过研究SOM含量的时空变化，更加清楚地认识SOM的变化规律，为合理利用和开发芦苇湿地以及控制湿地污染，探究碳储量提供数据支持。
Abstract:
Taking reeds in Liaohe estuary as samples of study, we aim to study the variation of total organic carbon (SOM) content of the wetland sediment and make a research of the change rules of SOM in time and space, respectively. It turned out that in the aspect of time, the SOM content was significantly influenced by time in reed wetland sediments of near and far riverfront, especially in September and October, it had higher SOM content of sediment and the highest in September. In the aspect of space, the surface sediment SOM content (0—10 cm) was significant different from other sediments in depths (10—20 cm, 20—30 cm, 30—40 cm, 40—50 cm), and the difference between the SOM content of sediment in depth of 10—20 cm and that in the depth of 40—50 cm was significant, the SOM contents in other depth sediments had no obvious difference. At far riverfront and in April, May, June, September and October, the SOM contents of sediments in 0—10 cm and 10—20 cm depths were higher, and the maximum value of SOM content occurred in 0—10 cm depth. In July and August, the content of SOM was the least in the sediment in the depth of 0—10 cm. Compared with the far riverfront, the SOM content of near riverfront sediment was significant different because of the influence of the surface runoff in the months of April, May, June, July and August, the maximum value of the SOM content was not significant and the difference of SOM contents was small in different depths of sediments, but the SOM content was slightly higher than others in the depth of 20—40 cm sediment; in September and October, the maximum value of the SOM content occurred in the depth of 0—10 cm sediment and others were approximately equal. There was a linear correlation between the SOM content and the depth in the longitude. The area of S1—3 and S2—3 had the highest SOM content when it was located in the border between buffer and test area from the horizontal point of view, and the area of S1—6, S2—6 and S2—7 had the highest SOM content when it stayed near the border between the buffer and the core area. SOM contents in those areas were higher than the others. By studying the variations of the contents of SOM in time and space, it is clear to understand the change rules of SOM contents, what’s more, it can provide data for rational usage, development of reed wetlands, control of wetland pollution and exploration of the carbon stock.

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备注/Memo

收稿日期:2016-09-07;改回日期:2016-09-29。
基金项目:国家自然科学资助项目（31200392）；辽宁省农业领域青年科技创新人才项目（2015048）
作者简介:芦晓峰(1981-),男,辽宁省绥中县人,博士,副教授,硕士生导师,从事水土环境与生态工程方面研究。E-mail:13654906041@163.com
通讯作者:王铁良(1965-),男,辽宁省黑山县人,博士,教授,博士生导师,从事水土环境与生态工程方面研究。E-mail:tieliangwang@126.com

更新日期/Last Update: 1900-01-01