The Biomass of Phragmites Australis and Its Influencing Factors in Wuliangsuhai

Hong, Min Jeong; Guo, Ran; Duan, Xiaonan; Ouyang, Zhiyun; Wang, Xiaoke

doi:10.17521/cjpe.2004.0036

Cited by 7 publications

(3 citation statements)

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“…The ratio of N to P in plant leaves reflects the dynamic balance between soil nutrient supply and plant nutrient demand; the N/P ratio can be used to determine the limiting growth factors of plant nutrients (Duan et al, 2004). Studies have shown that when leaf N/P <14, plant growth is mainly restricted by N; when leaf N/P >16, plant growth is mainly restricted by P; and when leaf NP is more than 14, but less than 16, plant growth is restricted by both N and P (Aerts & Chapin, 2000).…”

Section: Ecological Stoichiometric Characteristics Of C N and P In The Leaves Of S Alopecuroides In Different Habitatsmentioning

confidence: 99%

“…The C/N and C/P ratios in leaves reflect the rate of plant carbon assimilation, and-to a certain extent-can reflect plant nutrient use efficiency (Wang & Yu, 2008). Leaf N/P is a sensitivity index and an important evaluation tool for plant growth nutrient restriction (Duan et al, 2004). In addition, growth of plants has been found to be not only affected by C, N, and P levels in the plant tissues, but also by the external environment (Cleland, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Ecological stoichiometric characteristics and influencing factors of carbon, nitrogen, and phosphorus in the leaves of Sophora alopecuroides L. in the Yili River Valley, Xinjiang

Zhang

Cui

Yu-hai

et al. 2021

PeerJ

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Background Sophora alopecuroides L. (S. alopecuroides L.) is a perennial herb widely distributed throughout Xinjiang, China. It is characterized by its rapid diffusion ability. Methods To reveal the ecological mechanism of the rapid spread of S. alopecuroides, and to elucidate the ecological stoichiometric characteristics of C, N, and P (and the influencing factors) in the leaves of S. alopecuroides, leaves were sampled from four habitats—forest, roadside, farmland, and desert—across the Yili River Valley. The variation rules of the ecological stoichiometric characteristics of C, N, and P in the leaves of S. alopecuroides were analyzed. Correlations between the ecological stoichiometric characteristics of leaves and environmental factors were examined using redundancy analysis (RDA). Results (1) The C, N, and P contents of S. alopecuroides leaves were 391.30–533.10 g/kg, 8.90–43.14 g/kg, and 0.71–2.04 g/kg, respectively, and the C/N, C/P, and N/P ratios were 10.34–4.94, 209.05–698.73, and 10.78–31.43 respectively. (2) The C content and C/P ratio of S. alopecuroides leaves were the highest in the desert habitat, leaf N content and N/P ratio were the highest in the forest habitat, leaf P content was the highest in the farmland habitat, and the leaf C/N ratio was the highest in the roadside habitat. (3) RDA showed that available potassium (AK) and pH were the main factors affecting the ecological stoichiometric characteristics of S. alopecuroides leaves in Yili Valley (p ≤ 0.05), and these factors were positively correlated with C, N, P, and N/P, and negatively correlated with C/P and C/N. AK was the dominant factor that affected the P content of S. alopecuroides leaves, and appropriate reduction of K fertilizer would be conducive to restraining the spread of S. alopecuroides. Soil C, N, P, and K content, soil organic matter (OM), nitrate nitrogen (NO3−-N), ammonium nitrogen (NH4+-N), and AK had no significant effect on the ecological stoichiometric characteristics of leaves (p > 0.05).

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Section: Ecological Stoichiometric Characteristics Of C N and P In The Leaves Of S Alopecuroides In Different Habitatsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecological stoichiometric characteristics and influencing factors of carbon, nitrogen, and phosphorus in the leaves of Sophora alopecuroides L. in the Yili River Valley, Xinjiang

Zhang

Cui

Yu-hai

et al. 2021

PeerJ

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“…The Wuliangsuhai wetland is formed by the Yellow River, which is officially listed as wetlands of international importance list in the International Convention Wetlands organizations in 2002. The Wuliangsuhai wetland ecosystem is plays a very important role to maintain the ecological balance of the surrounding area [1] . In recent years, however, Wuliangsuhai have has facing severely ecological problems.…”

Section: Introductionmentioning

confidence: 99%

The Study of Soil Microorganism in Different Vegetation at the Wuliangsuhai Wetland

Zhao

Zhang

et al. 2012

AMR

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The study, by measured the number of microorganisms on the six kinds of vegetation types of WuLiangSuHai wetland, reveals that: Scirpus (Scirpus pumilus Vahl) plots, Gramineae (Phragmites australis (Cav.) Trin. ex Steud.) plots, Chenopodiacea (Suaeda glauca Bunge) plots, Zygophyllaceae (Nitraria tangutorum Bobr) plots, Artificial Tamarix plots and Artificial Elaeagnus angustifolia plots, soil microbial population and distribution is significantly different. The results show that: bacteria, Actinomycetes and Fungi are highest on the Artificial tamarix soil, are 15.6×103CFU•g-1, 47×102CFU•g-1, 43CFU•g-1, and other microbe quantity was significantly higher than other vegetation, and the number of microorganisms in Scirpus (Scirpus pumilus Vahl) plots, Gramineae (Phragmites australis (Cav.) Trin. ex Steud.) plots and Chenopodiacea (Suaeda glauca Bunge)plots vegetation are generally low. Overall, the quantities of bacteria are the largest than the actinomycetes and fungi that was less than others quantities in variety of samples. There is a certain correlation between the number of soil microorganism and soil moisture which is one of the key factors to regulate wetland ecosystem microbial metabolic and material conversion.

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Study on the relationship between CO<inf>2</inf> absorption and aboveground biomass of riparian wetland plant communities in inland river, Inner Mongolia plateau

Wang

Bao

Liu

2011

2011 International Conference on Remote Sensing, Environment and Transportation Engineering

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in this study, we measured CO 2 absorption and biomass of the typical wetland plant communities using the LI-7000 CO 2 /H 2 O analyzer in the Xilin River Basin, Inner Mongolia, China. The results are as follows: 1) The Poa annua+Equisetum arevene Community, Lathyrus palustris Community, Polygonum alopecuroides Community, Cirsium esculentum Community, and Glyceria maxima+Equisetum hyemale Communitiy have a similar changing trend of photosynthesis, taking photosynthesis ability in early July as strongest, while flooded community which is composed of Glyceria maxima and Equisetum hyemale achieves the peak of photosynthesis ability in late July. 2) During the growing season, the biomass of community dominated by Polygonum alopecuroides reached the extreme value at the beginning of September, whereas the biomass of other communities presented the extreme value in mid-August. 3) For a wetland plant community, there is not a remarkable relevance between CO 2 fixed and aboveground biomass, and it can not use the CO 2 fixed by community to reflect the standing crop of community.

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The Biomass of Phragmites Australis and Its Influencing Factors in Wuliangsuhai

Cited by 7 publications

References 0 publications

Ecological stoichiometric characteristics and influencing factors of carbon, nitrogen, and phosphorus in the leaves of Sophora alopecuroides L. in the Yili River Valley, Xinjiang

Ecological stoichiometric characteristics and influencing factors of carbon, nitrogen, and phosphorus in the leaves of Sophora alopecuroides L. in the Yili River Valley, Xinjiang

The Study of Soil Microorganism in Different Vegetation at the Wuliangsuhai Wetland

Study on the relationship between CO<inf>2</inf> absorption and aboveground biomass of riparian wetland plant communities in inland river, Inner Mongolia plateau

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