Beyond Soil Health: Learning from Living Rangelands

Those of us who spend our lives in rangelands rarely think simply in terms of soil. We think in terms of soils.

Every soil type reflects an ancient geological history. The soils beneath my feet were formed over thousands, sometimes millions, of years from volcanic ash, ancient basement gneisses, river deposits and the black cotton clays that characterise parts of northern Kenya. They are the inheritance of geology. Each possesses its own physical and chemical characteristics, its own capacity to hold water, cycle nutrients, and support life. Every soil has its own potential, and every soil interacts with particular plant communities. Healthy rangelands are therefore built not on one soil, but on the remarkable diversity of soils and the equally remarkable diversity of plants they support.