C,N,and P Ecological Stoichiometric Characteristics of Two Dominant Mosses in Baotianman Nature Reserve

Mingfei JI; Shoufang WU; Xiaowei ZHANG

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C,N,and P Ecological Stoichiometric Characteristics of Two Dominant Mosses in Baotianman Nature Reserve

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In order to investigate ecological adaptation mechanism of bryophyte,two dominant mosses Thuidium cymbifolium and Mnium immarginatum in Baotianman Nature Reserve were measured the content of C,N,P and their ratio in bryophyte and soil,and analyzed the relationships of plant and soil ecological stoichiometric characteristics along altitudinal gradients.Results indicate that the content of C,N and P in green tissues of T.cymbifolium and M.immarginatum in Baotianman Nature Reserve was 46.81%-49.09%,0.21%-0.25%,and0.02%-0.08%.Among the different altitudinal gradients,C,N and P displayed significant differences: the significantly different content of C and N were showed in T.cymbifolium,and the content of N and P differed significantly in M.immarginatum.However,only N declined obviously as increasing altitude.In soil,the C,N,N/P and C/P showed an increasing trend with increasing elevation,while the P and C/N along altitudinal gradients exhibited no unified trend.With the increasing in the content C,N of soil,the content C and N of T.cymbifolium raised,while the content C and N of M.immarginatum declined.With the rise in P element of soil,N/P showed different trends between two bryophyte species,the N/P in T.cymbifolium significantly decreased,while N/P in M.immarginatum significantly increased.In addition,mean value of leaf N/P was 8.51,ranking 14-16.These results suggested that the growth of the bryophyte plants in Baotianman Nature Reserve were restricted by N element,and different utilization strategies in soil P element in different bryophyte plants led to differences in ecological stoichiometric characteristics.

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《亚洲农业研究：英文版》 |2017年第008期|P.40-44|共5页
作者
Mingfei JI; Shoufang WU; Xiaowei ZHANG;
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作者单位

School of Life Science and Technology,Nanyang Normal University;

School of Life Sciences,Lanzhou University/Key Laboratory of Grassland Agro-ecosystems of the Ministry of Agriculture;

School of Life Science and Technology,Nanyang Normal University;

School of Life Sciences,Lanzhou University/Key Laboratory of Grassland Agro-ecosystems of the Ministry of Agriculture;

School of Life Science and Technology,Nanyang Normal University;

School of Life Sciences,Lanzhou University/Key Laboratory of Grassland Agro-ecosystems of the Ministry of Agriculture;

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正文语种 CHI
中图分类植物生态学;
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C,N,and P Ecological Stoichiometric Characteristics of Two Dominant Mosses in Baotianman Nature Reserve

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