Arid
DOI10.1007/s11368-015-1296-y
"Fertile island" effects of Tamarix chinensis Lour. on soil N and P stoichiometry in the coastal wetland of Laizhou Bay, China
Rong, Qiangqiang1; Liu, Jingtao2; Cai, Yanpeng1,3; Lu, Zhaohua2,4; Zhao, Zhenzhen1; Yue, Wencong1; Xia, Jiangbao2
通讯作者Cai, Yanpeng
来源期刊JOURNAL OF SOILS AND SEDIMENTS
ISSN1439-0108
EISSN1614-7480
出版年2016
卷号16期号:3页码:864-877
英文摘要

As a useful comprehensive index for reflecting nutrient cycling in soils, nitrogen (N) and phosphorus (P) stoichiometry is subject to influences of many external environmental and biological factors. Studies on such influences were limited, and the influential mechanism remains unclear. The purpose of this research is to investigate soil N and P stoichiometric variations and analyze "fertile island" effects of Tamarix chinensis Lour. (T. chinensis) in the coastal wetland of Laizhou Bay in China.


Soil samples beneath clusters and communities of T. chinensis were collected respectively in July 2012. Amounts of ammonium, nitrate, and available phosphorus in the soil samples were measured through the corresponding standard methods for material measuring.


In general, there were significant vertical variations in soil N and P stoichiometry beneath clusters and communities of T. chinensis. A downtrend was observed for N and P contents with the increase in soil depth. On the contrary, the N/P ratio revealed a trend of going up first and then dropping off along with the increase of the soil depth. Comparatively, the horizontal variations in the soil N and P stoichiometry beneath a single cluster of T. chinensis were greater in the topsoil than those in the subsoil. The N and P contents gradually decreased from the canopy center to the outside. On the contrary, an opposite trend was found for the N/P ratio. For the horizontal variations beneath T. chinensis communities, there were no significant differences for either N and P contents or N/P ratios.


Similar to the ecosystems in arid and semi-arid areas, vegetations in many semi-humid areas could also form fertile islands and exert significant influences on the soil nutrient cycle. The formation of fertile islands beneath a single cluster of T. chinensis could have significant influence on soil N and P stoichiometry. Under the influence of fertile islands beneath T. chinensis, the limiting element of the biogeochemical processes in the coastal wetland of Laizhou Bay might change from N to P. However, the influences of fertile island effects on soil N and P stoichiometry beneath T. chinensis communities were relatively small, illustrating that the influences of fertile island effects was not significant at the community level. Thus, the impacts of environmental factors on soil N and P stoichiometry might be greater than that of the fertile island effects in the wetland on a larger scale.


英文关键词Fertile island Soil stoichiometry Spatial variation Tamarix chinensis Lour Wetland
类型Article
语种英语
国家Peoples R China ; Canada
收录类别SCI-E
WOS记录号WOS:000370958100013
WOS关键词SPATIAL VARIATION ; HYDRAULIC-PROPERTIES ; TEMPORAL DYNAMICS ; NITROGEN ; DESERT ; CARBON ; VARIABILITY ; RESOURCE ; PHOSPHORUS ; NUTRIENTS
WOS类目Environmental Sciences ; Soil Science
WOS研究方向Environmental Sciences & Ecology ; Agriculture
来源机构北京师范大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/194753
作者单位1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China;
2.Binzhou Univ, Shandong Key Lab Ecoenvironm Sci Yellow River Del, Binzhou 256603, Peoples R China;
3.Univ Regina, Inst Energy Environm & Sustainable Communities, 120,2 Res Dr, Regina, SK S4S 7H9, Canada;
4.China Univ Min & Technol, Inst Restorat Ecol, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Rong, Qiangqiang,Liu, Jingtao,Cai, Yanpeng,et al. "Fertile island" effects of Tamarix chinensis Lour. on soil N and P stoichiometry in the coastal wetland of Laizhou Bay, China[J]. 北京师范大学,2016,16(3):864-877.
APA Rong, Qiangqiang.,Liu, Jingtao.,Cai, Yanpeng.,Lu, Zhaohua.,Zhao, Zhenzhen.,...&Xia, Jiangbao.(2016)."Fertile island" effects of Tamarix chinensis Lour. on soil N and P stoichiometry in the coastal wetland of Laizhou Bay, China.JOURNAL OF SOILS AND SEDIMENTS,16(3),864-877.
MLA Rong, Qiangqiang,et al.""Fertile island" effects of Tamarix chinensis Lour. on soil N and P stoichiometry in the coastal wetland of Laizhou Bay, China".JOURNAL OF SOILS AND SEDIMENTS 16.3(2016):864-877.
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