Pat Fleming, Arne Naess. Also contains full text of Chief Seattle's famous speech. This collection of thoughtful essays distills many years of practical experience as well as observation.
Gardeners are key land managers.
We would all agree that we must do it in an ecologically responsible way. San Francisco Joan Halifax has produced a movingly personal account of her experience of 'The World Wound', and the Nine 'Ways' by which we may identify with the richness of the dark earth. She quotes from many deeply earthed sources, some of which I have used on this site. The planet seems much smaller, more interconnected, and more vulnerable to me these days. Human economies and environmental systems, from the World Bank to Brazilian rain forests are intimately related.