caa a22 4500 467885907 CHVBK 20180406152734.0 cr unu---uuuuu 170328e20061201xx s 000 0 eng 10.1007/s10021-005-0069-7 doi (NATIONALLICENCE)springer-10.1007/s10021-005-0069-7 Agricultural Legacies in the Great Basin Alter Vegetation Cover, Composition, and Response to Precipitation [Elektronische Daten] [Andrew Elmore, John Mustard, Steven Hamburg, Sara Manning] The land-use history of an ecosystem influences current structure and possibly response to modern disturbances and stresses. In semiarid systems the nature of land-use legacies is poorly understood, confounding efforts to establish sustainable management approaches. We compare previously cultivated and non-cultivated lands in Owens Valley, California, where cultivation once extended to 34% of the valley floor but was largely discontinued by 1940, to measure the influence of past disturbance on modern vegetation. We combined historic maps of cultivated and non-cultivated land with an extensive vegetation survey, historic aerial photographs, and satellite measurements of vegetation response to precipitation variability to examine the importance of land-use history in determining the sensitivity of vegetation to annual variations in precipitation. Remote sensing analysis showed that total plant cover on previously cultivated lands was lower and fluctuations in cover were marginally more dependent on precipitation compared with plant cover on non-cultivated lands. We then compared modern plant assemblages within cultivated and non-cultivated land to determine if compositional differences could explain the current patterns of vegetation cover. We found lower species richness on previously cultivated parcels, and higher frequency and cover of perennial grasses on non-cultivated lands. Therefore, we showed differences in land-cover patterns, isolated a mechanism that could account for the differences (species differences), and developed a method for remotely analyzing land regions that have experienced historic anthropogenic disturbance. Springer Science+Business Media, Inc., 2007 land-use legacy nationallicence Great Basin nationallicence Owens Valley nationallicence precipitation variability nationallicence historic cultivation nationallicence remote sensing nationallicence linear spectral mixture analysis nationallicence Elmore Andrew Department of Geological Science, Brown University, Box 1846, 02912, Providence, Rhode Island, USA aut Mustard John Department of Geological Science, Brown University, Box 1846, 02912, Providence, Rhode Island, USA aut Hamburg Steven Center for Environmental Studies, Brown University, Box 1943, 02912, Providence, Rhode Island, USA aut Manning Sara Inyo County Water Department, 163 May Street, 93514, Bishop, California, USA aut Ecosystems Springer-Verlag; www.springer-ny.com 9/8(2006-12-01), 1231-1241 1432-9840 9:8<1231 2006 9 10021 https://doi.org/10.1007/s10021-005-0069-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-005-0069-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Elmore Andrew Department of Geological Science, Brown University, Box 1846, 02912, Providence, Rhode Island, USA aut NATIONALLICENCE 700 1- Mustard John Department of Geological Science, Brown University, Box 1846, 02912, Providence, Rhode Island, USA aut NATIONALLICENCE 700 1- Hamburg Steven Center for Environmental Studies, Brown University, Box 1943, 02912, Providence, Rhode Island, USA aut NATIONALLICENCE 700 1- Manning Sara Inyo County Water Department, 163 May Street, 93514, Bishop, California, USA aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag; www.springer-ny.com 9/8(2006-12-01), 1231-1241 1432-9840 9:8<1231 2006 9 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer