Journal Article

To Tree or Not to Tree

Holmgren, Milena, Scheffer, Marten

2017

Overview

Few things are more defining in a landscape compared to the absence or presence of trees, both in aesthetic and in functional terms. At the same time, tree cover has been profoundly affected by humans since ancient times. It is therefore not surprising that opinions about deforestation and colonization of landscapes by trees have always been strong. Although loss of forests is often lamented, there is also profound cultural affection for open landscapes including some that have been deforested in the past. Here we take a historical view on perceptions of changing tree cover, and subsequently argue that the current ecological literature on forest-savanna-grassland transitions is not immune to value-laden perspectives. So far, ecosystem science has not done enough to analyze the effects of tree cover changes on ecosystem services and indicators of human well-being. Until these analyses are done, debates about forested versus open landscapes will be clashes of values rather than scientific evaluations. We discuss how ecosystem science may contribute to developing this field.

• Publisher: Springer Science + Business Media,Springer US,Springer,Springer Nature B.V
• Subject: 20th Anniversary Paper / 20th Anniversary Papers: Future Directions in Ecosystem Ecology Special Feature / aesthetics / Analysis / attitudes and opinions / Biomedical and Life Sciences / Deforestation / ecologists / Ecology / Ecosystem services / Ecosystems / Environmental changes / Environmental Management / forest / forests / Geoecology/Natural Processes / grassland / Grasslands / humans / Hydrology/Water Resources / Land degradation / landscapes / Life Sciences / Plant Sciences / savanna / tree encroachment / Trees / visions of nature / Zoology