Jornada Basin LTER
The overall goal of the Jornada Basin LTER (JRN) program is to quantify the key factors and processes that control ecosystem dynamics and biotic patterns in Chihuahuan Desert landscapes. These landscapes are representative of many arid and semiarid ecosystems of the world where dramatic changes in vegetation structure and ecosystem processes have occurred over the past several centuries. These changes in ecosystem state are often interpreted as “desertification”, the broad-scale conversion of perennial grasslands to dominance by xerophytic woody plants and the associated loss of soils and biological resources, including biodiversity. The JRN LTER has been investigating desertification processes since 1982. Significant advances in understanding the causes and consequences of desertification have been made at specific spatial scales and for certain environmental conditions.