Abstract: This paper studied physiological and ecological characters of Ulmus chenmoui, U. gaussenii, Pteroceltis tatarinowii, Zelkova schneiderina and Celtis sinensis. Light compensations of them are 6.35,4.45,5.03,3,32 and 5.53W/m2 respectively. The water utilization efficiencies are 3.1610-2,2.9210-2,2.6510-2,2.4810-2 and 2.9810-2g/g(DW/H2O) and the water potentials at noon of May are -8.4,-7.2,-9.1,-8.0 dan -9.0 bar respectively. With high light compensation and water utilization efficiencies and low water potentials, they are adaptable to limestone babitat.