greensward
1.Totally 2,000 types of plants are growing in the Garden, including 60 thousand arbor species, 300 thousand shrub species, 66 thousand vine species, 850 thousand herbs, 400 thousand square meters greensward, one million potted flowers. 
2.The paper studied comprehensive performance of ten different mixed lawn grass at Chengdu city, The characteristics of lawny planting speed, greensward density, leaf texture, green vegetation index, disease resistance, the cover age, uniformity and comprehensive quality were evaluated.
3.This article introduces the advan- tages of a four-layer mat for cultivating greensward from the principle of selecting material,the structure of the mat,process- ing method and its functions,and analyzes its effects on the growth of grass and the control of soil loss. The production costs of such mat are also discussed.
