
In this paper, we study the general mechanism of Turing-pattern in a tree-grass competition model with cross diffusion and time delay. The properties of four equilibrium points, the existence of Hopf bifurcation and the sufficient conditions for Turing instability caused by cross-diffusion are analyzed, respectively. The amplitude equation of tree-grass competition model is derived by using multi-scale analysis method, and its nonlinear stability is studied. The sensitivity analysis also verified that fire frequency plays a key role in tree-grass coexistence equilibrium. Finally, the Turing pattern of tree-grass model obtained by numerical simulation is consistent with the spatial structure of tree-grass density distribution observed in Hulunbuir grassland, China.
Citation: Rina Su, Chunrui Zhang. The generation mechanism of Turing-pattern in a Tree-grass competition model with cross diffusion and time delay[J]. Mathematical Biosciences and Engineering, 2022, 19(12): 12073-12103. doi: 10.3934/mbe.2022562
[1] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2024, 11(3): 380-380. doi: 10.3934/environsci.2024018 |
[2] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2025, 12(2): 252-252. doi: 10.3934/environsci.2025011 |
[3] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2021, 8(2): 100-100. doi: 10.3934/environsci.2021007 |
[4] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2022, 9(2): 217-217. doi: 10.3934/environsci.2022014 |
[5] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2023, 10(2): 245-245. doi: 10.3934/environsci.2023014 |
[6] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2018, 5(1): 64-66. doi: 10.3934/environsci.2018.1.64 |
[7] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2016, 3(1): 140-140. doi: 10.3934/environsci.2016.1.140 |
[8] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2020, 7(2): 153-155. doi: 10.3934/environsci.2020009 |
[9] | Yifeng Wang . Journal summary from Editor in Chief. AIMS Environmental Science, 2017, 4(2): 287-288. doi: 10.3934/environsci.2017.2.287 |
[10] | Rukhsana Kokkadan, Resha Neznin, Praseeja Cheruparambath, Jerisa Cabilao, Salma Albouchi . A Study of Infaunal Abundance, Diversity and Distribution in Chettuva Mangrove, Kerala, India. AIMS Environmental Science, 2023, 10(1): 82-92. doi: 10.3934/environsci.2023005 |
In this paper, we study the general mechanism of Turing-pattern in a tree-grass competition model with cross diffusion and time delay. The properties of four equilibrium points, the existence of Hopf bifurcation and the sufficient conditions for Turing instability caused by cross-diffusion are analyzed, respectively. The amplitude equation of tree-grass competition model is derived by using multi-scale analysis method, and its nonlinear stability is studied. The sensitivity analysis also verified that fire frequency plays a key role in tree-grass coexistence equilibrium. Finally, the Turing pattern of tree-grass model obtained by numerical simulation is consistent with the spatial structure of tree-grass density distribution observed in Hulunbuir grassland, China.
Dear Editorial Board Members,
It is my pleasure to share with you the year-end report for AIMS Environmental Science. The journal went through a challenging year in the fifth year (2018). We have received 57 submissions with 27 published online (Figure 1). The most downloaded and cited papers are listed in Tables 1 and 2. The top read article received more than 4332 downloads.
Title | Usages |
Quantifying the local-scale ecosystem services provided by urban treed streetscapes in Bolzano, Italy | 4332 |
Low temperature selective catalytic reduction of NOover Mn-based catalyst: A review | 1417 |
Remote sensing of agricultural drought monitoring: A state of art review | 1307 |
Feasibility study of a solar photovoltaic water pumping system for rural Ethiopia | 1278 |
Biophilic architecture: a review of the rationale and outcomes | 1234 |
Nitrate pollution of groundwater by pit latrines in developing countries | 1177 |
Urban agriculture in the transition to low carbon cities through urban greening | 1136 |
Climate change and land management impact rangeland condition and sage-grouse habitat in southeastern Oregon | 1097 |
A state-and-transition simulation modeling approach for estimating the historical range of variability | 1080 |
Effects of urban green areas on air temperature in a medium-sized Argentinian city | 1033 |
Title | Number |
Traffic-related air pollution and brain development | 14 |
Biophilic architecture: a review of the rationale and outcomes | 11 |
An integrated approach to modeling changes in land use, land cover, and disturbance and their impact on ecosystem carbon dynamics: a case study in the Sierra Nevada Mountains of California | 9 |
Nitrate pollution of groundwater by pit latrines in developing countries | 9 |
The mechanism of kaolin clay flocculation by a cation-independent bioflocculant produced by Chryseobacterium daeguense W6 | 9 |
Enhancing water flux of thin-film nanocomposite (TFN) membrane by incorporation of bimodal silica nanoparticles | 9 |
Linking state-and-transition simulation and timber supply models for forest biomass production scenarios | 8 |
Climate change and land management impact rangeland condition and sage-grouse habitat in southeastern Oregon | 8 |
Quantifying the local-scale ecosystem services provided by urban treed streetscapes in Bolzano, Italy | 8 |
Combining state-and-transition simulations and species distribution models to anticipate the effects of climate change | 8 |
I would like to thank all the board members for serving on the Editorial Board and their dedication and contribution to the journal AIMS Environmental Science. The goal in 2019 is to solicit more papers and increase paper citations. We will try our best to reduce the processing time and supply with a better experience for publication. To recognize the contribution of the Editorial Board members and authors during the years, we will offer that (1) for authors invited, the article processing charge (APC) is automatically waived; (2) each editorial board member is entitled for some waivers. I am looking forward to continuing working with you to make the AIMS Environmental Science a sustainable and impactful journal. Please don't hesitate to send me e-mails if you have new ideas and suggestions to help us to achieve this goal.
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Yifeng Wang, Ph.D.
Editor in Chief, AIMS Environmental Science
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C. Zhang, B. Zheng, R. Su, Realizability of the normal forms for the non-semisimple 1:1 resonant Hopf bifurcation in a vector field, Commun. Nonlinear Sci. Numer. Simul., 91 (2020), 105407. https://doi.org/10.1016/j.cnsns.2020.105407 doi: 10.1016/j.cnsns.2020.105407
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C. Zhang, B. Zheng, Steady state bifurcation and patterns of reaction-diffusion equations, Int. J. Bifurcat. Chaos, 30 (2020), 2050215. https://doi.org/10.1142/S0218127420502156 doi: 10.1142/S0218127420502156
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W. Jiang, Q. An, J. Shi, Formulation of the normal form of Turing-Hopf bifurcation in partial functional differential equations, J. Differ. Equ., 268 (2020), 6067–6102. https://doi.org/10.1016/j.jde.2019.11.039 doi: 10.1016/j.jde.2019.11.039
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K. Yun, K. Sourav, Sasmal, M. Komi, A two-patch prey-predator model with predator dispersal driven by the predation strength, Math. Biosci. Eng., 14 (2017), 843–880. https://doi.org/10.3934/mbe.2017046 doi: 10.3934/mbe.2017046
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K. Kim, W. Choi, Local dynamics and coexistence of predator-prey model with directional dispersal of predator, Math. Biosci. Eng., 17 (2020), 6737–6755. https://doi.org/10.3934/mbe.2020351 doi: 10.3934/mbe.2020351
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Q. Din, M. S. Shabbir, M. A. Khan, K. Ahmad, Bifurcation analysis and chaos control for a plant-herbivore model with weak predator functional response, J. Biol. Dyn., 13 (2019), 481–501. https://doi.org/10.1080/17513758.2019.1638976 doi: 10.1080/17513758.2019.1638976
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Title | Usages |
Quantifying the local-scale ecosystem services provided by urban treed streetscapes in Bolzano, Italy | 4332 |
Low temperature selective catalytic reduction of NOover Mn-based catalyst: A review | 1417 |
Remote sensing of agricultural drought monitoring: A state of art review | 1307 |
Feasibility study of a solar photovoltaic water pumping system for rural Ethiopia | 1278 |
Biophilic architecture: a review of the rationale and outcomes | 1234 |
Nitrate pollution of groundwater by pit latrines in developing countries | 1177 |
Urban agriculture in the transition to low carbon cities through urban greening | 1136 |
Climate change and land management impact rangeland condition and sage-grouse habitat in southeastern Oregon | 1097 |
A state-and-transition simulation modeling approach for estimating the historical range of variability | 1080 |
Effects of urban green areas on air temperature in a medium-sized Argentinian city | 1033 |
Title | Number |
Traffic-related air pollution and brain development | 14 |
Biophilic architecture: a review of the rationale and outcomes | 11 |
An integrated approach to modeling changes in land use, land cover, and disturbance and their impact on ecosystem carbon dynamics: a case study in the Sierra Nevada Mountains of California | 9 |
Nitrate pollution of groundwater by pit latrines in developing countries | 9 |
The mechanism of kaolin clay flocculation by a cation-independent bioflocculant produced by Chryseobacterium daeguense W6 | 9 |
Enhancing water flux of thin-film nanocomposite (TFN) membrane by incorporation of bimodal silica nanoparticles | 9 |
Linking state-and-transition simulation and timber supply models for forest biomass production scenarios | 8 |
Climate change and land management impact rangeland condition and sage-grouse habitat in southeastern Oregon | 8 |
Quantifying the local-scale ecosystem services provided by urban treed streetscapes in Bolzano, Italy | 8 |
Combining state-and-transition simulations and species distribution models to anticipate the effects of climate change | 8 |
Title | Usages |
Quantifying the local-scale ecosystem services provided by urban treed streetscapes in Bolzano, Italy | 4332 |
Low temperature selective catalytic reduction of NOover Mn-based catalyst: A review | 1417 |
Remote sensing of agricultural drought monitoring: A state of art review | 1307 |
Feasibility study of a solar photovoltaic water pumping system for rural Ethiopia | 1278 |
Biophilic architecture: a review of the rationale and outcomes | 1234 |
Nitrate pollution of groundwater by pit latrines in developing countries | 1177 |
Urban agriculture in the transition to low carbon cities through urban greening | 1136 |
Climate change and land management impact rangeland condition and sage-grouse habitat in southeastern Oregon | 1097 |
A state-and-transition simulation modeling approach for estimating the historical range of variability | 1080 |
Effects of urban green areas on air temperature in a medium-sized Argentinian city | 1033 |
Title | Number |
Traffic-related air pollution and brain development | 14 |
Biophilic architecture: a review of the rationale and outcomes | 11 |
An integrated approach to modeling changes in land use, land cover, and disturbance and their impact on ecosystem carbon dynamics: a case study in the Sierra Nevada Mountains of California | 9 |
Nitrate pollution of groundwater by pit latrines in developing countries | 9 |
The mechanism of kaolin clay flocculation by a cation-independent bioflocculant produced by Chryseobacterium daeguense W6 | 9 |
Enhancing water flux of thin-film nanocomposite (TFN) membrane by incorporation of bimodal silica nanoparticles | 9 |
Linking state-and-transition simulation and timber supply models for forest biomass production scenarios | 8 |
Climate change and land management impact rangeland condition and sage-grouse habitat in southeastern Oregon | 8 |
Quantifying the local-scale ecosystem services provided by urban treed streetscapes in Bolzano, Italy | 8 |
Combining state-and-transition simulations and species distribution models to anticipate the effects of climate change | 8 |