Associations Between Species Distribution Patterns and Soil Salinity in the Songnen Grassland
Associations Between Species Distribution Patterns and Soil Salinity in the Songnen Grassland
复制标题
松嫩草原物种分布格局与土壤盐分的关系
DOI：
10.1080/15324982.2014.945625
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发表时间：
2015-04
影响因子：
1.4
通讯作者：
Zhou, Daowei
中科院分区：
文献类型：
--
作者：
Wang, Chao;Sun, Baoru;Asch, Folkard;Zhou, Daowei
The Songnen grassland is one of the grasslands in China characterized by concentrated heterogeneous patches of saline-alkaline soils. However, our understanding of how these patchy structures develop and how biochemical factors change within patches is limited. Thus, three representative semi-vegetated patches were selected and analyzed for soil electrical conductivity (EC), soil pH, soil organic matter (SOM), and soil nitrogen (N). Based on the different appearance and distribution of species, the patches were divided into a center, middle, and outer section. Our results showed that in contrast to EC, SOM significantly increased from the center to the outer section. Aboveground biomass and species distribution patterns were strongly associated with SOM and contrasted to EC. In the center section, the annual species Kochia scoparia (L.) Schrad represented more than 90% of the total biomass, whereas the perennial species Leymus chinensis (Trin.) Tzvel and Phragmites australis (Cav.) Trin. ex Steud were the most dominant species in the outer section with a contribution of more than 90% to the total biomass. In the middle section, most of the species achieved mutual coexistence and the perennial species appeared to benefit from the interspecific relationships with their neighbors. Our results suggest that a feasible means of restoration management for heterogeneous degraded grassland should be achievable through revegetation by species such as L. chinensis and P. australis, which improve soil organic matter and reduce EC.
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影响因子：
3.9
作者：
Liangjun Hu
通讯作者：
Liangjun Hu
影响因子：
--
作者：
H. Du;Mengping Tang;Guomo Zhou;Wen-Xuan Xu;Enbing Liu;Yongjun Shi
通讯作者：
H. Du;Mengping Tang;Guomo Zhou;Wen-Xuan Xu;Enbing Liu;Yongjun Shi
DOI：
--
发表时间：
2000
期刊：
--
影响因子：
--
作者：
X. Xiao;Yang Zheng
通讯作者：
X. Xiao;Yang Zheng
DOI：
--
发表时间：
2008
期刊：
--
影响因子：
--
作者：
Li Jian-dong
通讯作者：
Li Jian-dong
影响因子：
8.3
作者：
K. Sudduth;N. Kitchen;W. Wiebold;W. Batchelor;G. Bollero;D. Bullock;D. Clay;H. L. Palm;F. J. Pierce
通讯作者：
K. Sudduth;N. Kitchen;W. Wiebold;W. Batchelor;G. Bollero;D. Bullock;D. Clay;H. L. Palm;F. J. Pierce