In:
Communications in Theoretical Physics, IOP Publishing, Vol. 64, No. 2 ( 2015-08-01), p. 151-158
Abstract:
In this paper, we investigate the stationary probability distribution and mean first passage time in a vegetation ecological system, which is driven by cross-correlation between intrinsic and extrinsic colored noises as well as the nonzero cross-correlation in between. The impacts of the self-correlation time τ 1 and τ 2 , the cross-correlation time τ 3 and intensity k on the stationary probability distribution and mean first passage time are discussed, respectively. Our main results show that: (i) the self-correlation time τ 1 can induce regime shifts from the desert state to the sustainable vegetation state, while the self-correlation time τ 2 , cross-correlation time τ 3 and intensity k can induce regime shifts from the sustainable vegetation state to the desert state; and (ii) the self-correlation time τ 1 or τ 2 can enhance the stability of the sustainable vegetation biomass, while the cross-correlation time τ 3 or strength k weakens the stability of the sustainable vegetation biomass.
Type of Medium:
Online Resource
ISSN:
0253-6102
,
1572-9494
DOI:
10.1088/0253-6102/64/2/151
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2015
detail.hit.zdb_id:
2021522-8
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