Field survey of plant resources in Luoyang city type of leaf color, leaf color, leaf shape, plant type, leaf duration, the amount of leaf color viewing period, growth conditions, such as color rendering index, and the use of analytic hierarchy process to analyze the integrated value.

Investigations in the field the Luoyang urban color foliage plants color, type of resources, China, and China-shaped leaf type, duration and color, and viewing the color-, volume-growth conditions, and other indicators, colors and use its integrated value analysis AHP analysis.

The on-the-spot investigation Luoyang urban district colored leaf plant resources type, Ye Se, the foliate, the leaf color duration, ornamental time colored Ye Yeliang, the growth condition, the color have presented and so on the targets, and analyzes its comprehensive value using the analytic hiera

Field survey of color-leaf plants resources in Luoyang City species, leaf color and leaf shape, plant type, duration of leaf color and Visual color indicators such as leaf, growth conditions, color rendering, and using analytic hierarchy process analysis of the integrated value.

Field survey of plant resources in Luoyang city type of leaf color, leaf color, leaf shape, plant type, leaf duration, the amount of leaf color viewing period, growth conditions, such as color rendering index, and the use of analytic hierarchy process to analyze the integrated value.