This new metric, the green plot ratio (GPR), is based on a common biological parameter called the leaf area index (LAI), which is defined as the single-side leaf area per unit ground area.

这个新指标——绿色容积率(GPR)是以一个通常被称作叶面积指数(LAI)的生物参数作为基础，该参数被定义为每单位地块面积上的单面叶面积总和。

youdao

Leaf fresh mass, water content, leaf mass per unit area, leaf area and pigment of back mutation were approximately the same as green leaves of its red-leaf variations;

②回复突变的红花檵木叶鲜重、含水量、比叶重、叶面积和色素特征等特征均与转绿叶片相似；

youdao

The book also highlights new initiatives and alliances such as the, the Green Development Initiative which aims to establish an area-based certified biodiversity unit, the ISEAL Alliance which is exploring the biodiversity dimensions of environmental and social certification schemes, the Malua BioBank in Malaysia, and Mission Markets which has established an e-platform for biodiversity deals.

FORBES: Making the economic case for business and biodiversity