HANPP Collection: Human Appropriation of Net Primary Productivity as a Percentage of Net Primary Productivity

The HANPP Collection: Human Appropriation of Net Primary Productivity as a Percentage of Net Primary Productivity represents a map identifying regions in which human consumption of NPP is greatly in excess of production by local ecosystems. Humans appropriate net primary productivity through the consumption of food, paper, wood and fiber, which alters the composition of the atmosphere, levels of biodiversity, energy flows within food webs and the provision of important ecosystem services. Net primary productivity (NPP), the net amount of solar energy converted to plant organic matter through photosynthesis, can be measured in Units of elemental carbon and represents the primary food energy source for the world's ecosystems.

HANPP 数据集：人类对净初级生产力（NPP）的利用百分比，该数据集呈现了一幅地图，标示了人类消费 NPP 远超本地生态系统生产力的区域。人类通过食物、纸张、木材和纤维的消费来获取净初级生产力，这一过程改变了大气组成、生物多样性水平、食物网中的能量流动以及重要生态系统服务的提供。净初级生产力（NPP）是指通过光合作用将太阳能转化为植物有机物的净量，其量度以元素碳单位表示，并作为世界生态系统的首要食物能量来源。