TY - RPRT TI - Historical and contemporary geographic data reveal complex spatial and temporal responses of vegetation to climate and land stewardship AU - Miguel L. Villarreal AU - Laura M. Norman AU - Robert H. Webb AU - Raymond M. Turner PY - 2013 DO - 10.3390/land2020194 UR - https://pubs.usgs.gov/publication/70046901 ID - 70046901 ER -