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| 1 | Effects of grassland management on the community structure, aboveground biomass and stability of a temperate steppe in Inner Mongolia, China显示文摘Plant community structure responds strongly to anthropogenic disturbances, which greatly influence community stability. The changes in community structure, aboveground biomass(AGB), biodiversity and community stability associated with different management practices were studied with a three-year field investigation in a temperate steppe of Inner Mongolia, China. The species richness, Shannon-Wiener index, evenness, plant functional type abundance, AGB, temporal community stability, summed covariance, scaling coefficient and dominant species stability were compared among areas subjected to long-term reservation(R), long-term grazing(G), mowing since enclosure in 2008(M) and grazing enclosure since 2008(E). Site R had higher perennial grass abundance and lower species richness than sites G, M and E, although the AGB was not significantly different among the four sites. The species structure varied from a single dominant species at site R to multiple dominant species at sites G, M and E. The long-term reservation grassland had lower biodiversity but higher stability, whereas the enclosed grassland with/without mowing had higher biodiversity but lower stability. Different stability mechanisms, such as the compensatory dynamics, mean-variance scaling and dominant species stability were examined. Results showed that community stability was most closely related to the relative stability of the dominant species, which supports the biomass ratio hypothesis proposed by Grime. | ZHANG Jinghui HUANG Yongmei CHEN Huiying GONG Jirui QI Yu YANG Fei LI Engui | 2016 | Journal of Arid Land2016,8,3: | 6 |
| 2 | Effects of vegetation types on soil water dynamics during vegetation restoration in the Mu Us Sandy Land, northwestern China显示文摘The arid and semi-arid northwestern China has been undergoing ecological degradation and the efforts to reverse the ecological degradation have been undertaken for many years. Some shifting dunes have been fixed and the vegetation has been partially recovered in certain areas and the Mu Us Sandy Land in the Ordos Plateau is an example of the success. The present study attempts to reveal the relationships between the vegetation restoration and ecohydrology in the Mu Us Sandy Land. We continuously measured soil water content at 10-min intervals under three vegetation types(i.e., shifting dune, shrub-dominated community, and herb-dominated community) in the Mu Us Sandy Land from April 2012 to October 2013. The results show the infiltration coefficient increased with increased rainfall amount and eventually reached a stable value. Infiltration coefficients were 0.91, 0.64, and 0.74 in the shifting dune, in the shrub-dominated community, and in the herb-dominated community, respectively. Cumulative infiltration and soil texture are two vital factors affecting the depths of rainfall penetration. Only rainfall events larger than 35.0 mm could recharge soil water at the 60–80 cm layer in the herb-dominated community. Our results imply that the expected forward succession of restored vegetation may be destined to deterioration after reaching the climax simply because of following two facts:(1) soil water is mainly retained at shallower layer and(2) plant fine roots mainly distribute in deeper layer in the herb-dominated community. | Yu Xiaona Huang Yongmei Li Engui Li Xiaoyan Guo Weihua | 2017 | Journal of Arid Land2017,9,2: | 6 |
| 3 | TRAVELLING WAVE SOLUTIONS OF NONLINEAR EVOLUTION EQUATIONS BY USING SYMBOLIC COMPUTATION显示文摘A Riccati equation involving a parameter and symbolic computation are used to uniformly construct the different forms of travelling wave solutions for nonlinear evolution equations.It is shown that the sign of the parameter can be applied in judging the existence of various forms of travelling wave solutions.An efficiency of this method is demonstrated on some equations,which include Burgers Huxley equation,Caudrey Dodd Gibbon Kawada equation,generalized Benjamin Bona Mahony equation and generalized Fisher equation. | Fan Engui E mail:faneg@fudan.edu.cnInstituteofMath.,FudanUniv.,Shanghai200433 | 2001 | Applied Mathematics(A Journal of Chinese Universities)2001,16,2: | 4 |
| 4 | A note on the homogeneous balance method显示文摘 | Engui Fan Hongqing Zhang | 1998 | Physics Letters A1998,,5: | 2 |
| 5 | A Riemann-Hilbert Approach to the Harry-Dym Equation on the Line显示文摘In this paper, the authors consider the Harry-Dym equation on the line with decaying initial value. They construct the solution of the Harry-Dym equation via the solution of a 2 × 2 matrix Riemann-Hilbert problem in the complex plane. Further, onecusp soliton solution is expressed in terms of the Riemann-Hilbert problem. | Yu XIAO Engui FAN | 2016 | Chinese Annals of Mathematics,Series B2016,37,3: | 2 |
| 6 | Darboux transformation and soliton-like solutions for the Gerdjikov-Ivanov equation显示文摘 | Fan Engui | 2000 | J Phys A: Math Gen2000,33,: | 1 |
| 7 | Extended tanh-functon method and its applications to nonlinear equations显示文摘 | Engui Fan | 2000 | Phys Lett2000,277,: | 1 |
| 8 | Extended tanh-function method and its applications to nonlinear equations显示文摘 | San Engui | 2000 | Phys Lett A2000,277,: | 1 |
| 9 | Extended tanh - function method and its applications to nonlinear equations 显示文摘 | Fan EnGui | 2000 | Phys Lett A2000,,277: | 1 |
| 10 | Extended tanh-function method and its applications to nonlinear equations显示文摘 | Fan Engui | 2000 | Physics Letters A2000,277,: | 1 |
| 11 | Extended tanh-function method and its applications to nonlinear equations显示文摘 | Fan EnGui | 2000 | Physics Letters A2000,277,: | 1 |
| 12 | Uniformly constructing a series of explicit exact solutions to nonlinear equation in mathematical physics显示文摘 | Fan Engui | 2003 | Chaos Solitions and Fractals2003,16,5: | 1 |
| 13 | Soliton solutions for a generalized Hirota-Satsuma coupled KdV equation and a coupled MKdV equation 显示文摘 | | 2001 | Phys Lett A2001,282,: | 1 |
| 14 | The algebraic structure of discrete zero curvature equations associated with integrable couplings and application to enlarged Volterra systems显示文摘An algebraic structure of discrete zero curvature equations is established for integrable coupling systems associated with semi-direct sums of Lie algebras. As an application example of this algebraic structure, a τ-symmetry algebra for the Volterra lattice integrable couplings is engendered from this theory. | LUO Lin FAN EnGui | 2009 | Science China Mathematics2009,52,1: | 1 |
| 15 | Extended tanh-function method and its application to nonlinear equation显示文摘 | Fan Engui | 2000 | Phys Lett A2000,277,: | 1 |
| 16 | Soliton solutions for a generalized Hirota-Satsuma coupled KdV equation and a coupled MKdV equation显示文摘 | Fan Engui | 2001 | Physics Letters A2001,282,: | 1 |
| 17 | Supply chain modeling: past, present and future显示文摘 | G engui Zhou | 2002 | Computers & Industrial Engineering2002,43,12: | 1 |
| 18 | Linear Superposition Principle Applying to Hirota Bilinear Equations 显示文摘 | MA Wenxiu FAN Engui | 2011 | ComputMath Appl2011,61,4: | 1 |
| 19 | Uniformly constructing a series of explicit exact solutions to nonlinear equations in mathematical physics显示文摘 | Fan Engui | | 0,,: | 1 |
| 20 | Extended tanh-function method and its applications to nonlinear equations显示文摘 | Fan EnGui | 2000 | Physics Letters A2000,277,: | 1 |