scholarly journals Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome

2018 ◽  
Author(s):  
H. J. D. Thomas ◽  
I. H. Myers‐Smith ◽  
A. D. Bjorkman ◽  
S. C. Elmendorf ◽  
D. Blok ◽  
...  
Keyword(s):  
Functional Groups ◽  
Plant Functional Groups

Plant community C:N:P stoichiometry is mediated by soil nutrients and plant functional groups during grassland desertification

2021 ◽  
Vol 162 ◽  
pp. 106179
Author(s):  
Zhiying Ning ◽  
Xueyong Zhao ◽  
Yulin Li ◽  
Lilong Wang ◽  
Jie Lian ◽  
...  
Keyword(s):  
Functional Groups ◽  
Plant Community ◽  
Soil Nutrients ◽  
Plant Functional Groups ◽  
C:N:P Stoichiometry

Social network analysis of sheep grazing different plant functional groups

2018 ◽  
Vol 74 (1) ◽  
pp. 129-140 ◽  
Author(s):  
Maria D. Yiakoulaki ◽  
Nikolaos D. Hasanagas ◽  
Eleni Michelaki ◽  
Eleni T. Tsiobani ◽  
Ioannis E. Antoniou
Keyword(s):  
Social Network ◽  
Social Network Analysis ◽  
Network Analysis ◽  
Functional Groups ◽  
Plant Functional Groups ◽  
Sheep Grazing

Dynamics of plant functional groups composition along environmental gradients in the typical area of Yi-Luo River watershed

2011 ◽  
Vol 10 (65) ◽  
pp. 14485-14492 ◽  
Author(s):  
Liao Bing Hua ◽  
Ding Sheng Yan ◽  
Liang Guo Fu ◽  
Guo Yi Li ◽  
Tian Li ◽  
...  
Keyword(s):  
Functional Groups ◽  
Environmental Gradients ◽  
Plant Functional Groups ◽  
River Watershed

scholarly journals Mowing alters nitrogen effects on the community-level plant stoichiometry through shifting plant functional groups in a semi-arid grassland

2020 ◽  
Vol 15 (7) ◽  
pp. 074031
Author(s):  
Shijie Li ◽  
Fuwei Wang ◽  
Mengfei Chen ◽  
Zhengyi Liu ◽  
Luyao Zhou ◽  
...  
Keyword(s):  
Functional Groups ◽  
Community Level ◽  
Plant Functional Groups ◽  
Semi Arid

scholarly journals Effects of High Impact Grazing on Species Diversity and Plant Functional Groups in Grasslands of Northern Argentina

2018 ◽  
Vol 10 (9) ◽  
pp. 3153
Author(s):  
Ditmar Kurtz ◽  
Marcus Giese ◽  
Folkard Asch ◽  
Saskia Windisch ◽  
María Goldfarb
Keyword(s):  
Species Composition ◽  
Functional Groups ◽  
Plant Species ◽  
High Impact ◽  
Sustainable Land Use ◽  
Plant Functional Groups ◽  
Seasonal Effects ◽  
Plant Species Composition ◽  
Wiener Diversity Index ◽  
The Impact

High impact grazing (HIG) was proposed as a management option to reduce standing dead biomass in Northern Argentinean (Chaco) rangelands. However, the effects of HIG on grassland diversity and shifts in plant functional groups are largely unknown but essential to assess the sustainability of the impact. During a two-year grazing experiment, HIG was applied every month to analyze the seasonal effects on plant species composition and plant functional groups. The results indicate that irrespective of the season in which HIG was applied, the diversity parameters were not negatively affected. Species richness, the Shannon–Wiener diversity index and the Shannon’s equitability index did not differ from the control site within a 12-month period after HIG. While plant functional groups of dicotyledonous and annual species could not benefit from the HIG disturbance, C3-, C4-monocotyledonous and perennials increased their absolute and relative green cover. Our results suggest that HIG, if not applied in shorter frequencies than a year, neither alters diversity nor shifts the plant species composition of the grassland plant community, but instead it promotes previously established rather competitive species. HIG could therefore contribute as an alternative management practice to the sustainable land use intensification of the “Gran Chaco” grassland ecosystem and even counteract the encroachment of “low value” species.

scholarly journals Effects of Continuous Slope Gradient on the Dominance Characteristics of Plant Functional Groups and Plant Diversity in Alpine Meadows

2018 ◽  
Vol 10 (12) ◽  
pp. 4805 ◽  
Author(s):  
Qi-Peng Zhang ◽  
Jian Wang ◽  
Hong-Liang Gu ◽  
Zhi-Gang Zhang ◽  
Qian Wang
Keyword(s):  
Water Content ◽  
Functional Groups ◽  
Plant Communities ◽  
Plant Diversity ◽  
Ph Value ◽  
Pearson Correlation ◽  
Plant Functional Groups ◽  
The Tibetan Plateau ◽  
Slope Gradient ◽  
Alpine Meadows

Many studies reported the effect on plant functional groups and plant diversity under discontinuous slope gradient. However, studies on the effect of continuous slope gradient on plant functional groups and plant diversity in alpine meadows have rarely been conducted. We studied the effect of a continuous slope gradient on the dominance characteristics of plant functional groups and plant diversity of alpine meadows on the Tibetan plateau—in Hezuo area of Gannan Tibetan Autonomous Prefecture. Altogether, 84 samples of alpine meadows grass and 84 soil samples from seven slope gradients at sunlit slopes were collected. By using analysis of variance (ANOVA) and Pearson correlation coefficient, this study revealed: (1) Continuous slope gradient is an important factor affecting plant communities in alpine meadows, due to the physical and chemical characteristics of the soil and water content. The number of families, genera, and species increased first then decreased at the different slope gradient levels, respectively; (2) there is a close relationship between the soil and plant functional groups, and plant diversity. In other words, the slope determines the functional groups of plants and the soil nutrients; and (3) soil characteristics (pH value, Soil Total Nitrogen, Soil Water Content) are the determining factors of the plant community characteristics at each slope gradient level. To conclude, a continuous slope gradient is an important factor that affects plant communities in alpine meadows.

scholarly journals Discerning the thermodynamic feasibility of the spontaneous coexistence of multiple functional vegetation groups

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Meredith Richardson ◽  
Praveen Kumar
Keyword(s):  
Functional Groups ◽  
Complex Structure ◽  
Second Law Of Thermodynamics ◽  
Plant Functional Groups ◽  
Individual Plant ◽  
Ecosystem Structure ◽  
Work Efficiency ◽  
Available Energy ◽  
Random Fluctuations ◽  
Thermodynamic Feasibility

Abstract Can the Second Law of Thermodynamics explain why ecosystems naturally organize into a complex structure composed of multiple vegetation species and functional groups? Ecosystem structure, which refers to the number and type of plant functional groups, is the result of self-organization, or the spontaneous emergence of order from random fluctuations. By considering ecosystems as open thermodynamic systems, we model and study these fluctuations of throughput signatures on short timescales to determine the drivers and characteristics of ecosystem structure. This diagnostic approach allows us to use fluxes of energy and entropy to calculate an ecosystem’s estimated work and understand the thermodynamic behavior of the system. We use a multi-layer canopy-root-soil model to calculate the energy and entropy fluxes of different scenarios for field sites across various climates. At each site, scenarios comprised of native individual plant functional groups and a coexisting multi-group composition scenario including all functional groups observed at the site are compared. Ecosystem-scale calculations demonstrate that entropy fluxes and work efficiency—the work performed for the amount of radiation entering the ecosystem—are greatest in the multi-group scenario when its leaf area is significantly larger than each of its individual functional groups. Thus, we conclude that ecosystems self-organize towards the vegetation structure with the greatest outgoing entropy flux and work efficiency, resulting in the coexistence of multiple functional groups and performing the maximum amount of work within the constraints of locally available energy, water, and nutrients.

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