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DOI	10.1098/rsos.200161
	Synthetic soil crusts against green-desert transitions: a spatial model
	Vidiella, Blai; Sardanyes, Josep; Sole, Ricard, V
通讯作者	Sole, RV (corresponding author), Univ Pompeu Fabra, ICREA Complex Syst Lab, Barcelona 08003, Spain. ; Sole, RV (corresponding author), Inst Biol Evolut CSIC UPF, Psg Maritim Barceloneta 37, Barcelona 08003, Spain. ; Sole, RV (corresponding author), Santa Fe Inst, 1399 Hyde Pk Rd, Santa Fe, NM 87501 USA.
来源期刊	ROYAL SOCIETY OPEN SCIENCE
ISSN	2054-5703
出版年	2020
卷号	7 期号:8
英文摘要	Semiarid ecosystems are threatened by global warming due to longer dehydration times and increasing soil degradation. Mounting evidence indicates that, given the current trends, drylands are likely to expand and possibly experience catastrophic shifts from vegetated to desert states. Here, we explore a recent suggestion based on the concept of ecosystem terraformation, where a synthetic organism is used to counterbalance some of the nonlinear effects causing the presence of such tipping points. Using an explicit spatial model incorporating facilitation and considering a simplification of states found in semiarid ecosystems including vegetation, fertile and desert soil, we investigate how engineered microorganisms can shape the fate of these ecosystems. Specifically, two different, but complementary, terraformation strategies are proposed: Cooperation-based: C-terraformation; and Dispersion-based: D-terraformation. The first strategy involves the use of soil synthetic microorganisms to introduce cooperative loops (facilitation) with the vegetation. The second one involves the introduction of engineered microorganisms improving their dispersal capacity, thus facilitating the transition from desert to fertile soil. We show that small modifications enhancing cooperative loops can effectively modify the aridity level of the critical transition found at increasing soil degradation rates, also identifying a stronger protection against soil degradation by using the D-terraformation strategy. The same results are found in a mean-field model providing insights into the transitions and dynamics tied to these terraformation strategies. The potential consequences and extensions of these models are discussed.
英文关键词	synthetic biology ecological engineering climate change catastrophic shifts mutualism synthetic ecology
类型	Article
语种	英语
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000565699300001
WOS关键词	DRYLAND ECOSYSTEMS ; REGIME SHIFTS ; DESERTIFICATION ; FACILITATION ; PATTERNS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326015
作者单位	[Vidiella, Blai; Sole, Ricard, V] Univ Pompeu Fabra, ICREA Complex Syst Lab, Barcelona 08003, Spain; [Vidiella, Blai; Sole, Ricard, V] Inst Biol Evolut CSIC UPF, Psg Maritim Barceloneta 37, Barcelona 08003, Spain; [Sardanyes, Josep] Ctr Recerca Matemat, Edifici C,Campus Bellaterra, Barcelona 08193, Spain; [Sardanyes, Josep] Barcelona Grad Sch Math BGSMath, Edifici C,Campus Bellaterra, Barcelona 08193, Spain; [Sole, Ricard, V] Santa Fe Inst, 1399 Hyde Pk Rd, Santa Fe, NM 87501 USA
推荐引用方式 GB/T 7714	Vidiella, Blai,Sardanyes, Josep,Sole, Ricard, V. Synthetic soil crusts against green-desert transitions: a spatial model[J],2020,7(8).
APA	Vidiella, Blai,Sardanyes, Josep,&Sole, Ricard, V.(2020).Synthetic soil crusts against green-desert transitions: a spatial model.ROYAL SOCIETY OPEN SCIENCE,7(8).
MLA	Vidiella, Blai,et al."Synthetic soil crusts against green-desert transitions: a spatial model".ROYAL SOCIETY OPEN SCIENCE 7.8(2020).