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This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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To investigate the evolution of clinal variation in an invasive plant, we compared cold hardiness in the introduced saltcedar (Tamarix ramosissima, Tamarix chinensis, and hybrids) and the native plains cottonwood (Populus deltoides subsp. monilifera). In a shadehouse in Colorado (41°N), we grew plants collected along a latitudinal gradient in the central United States (29–48°N). On 17 occasions between September 2005 and June 2006, we determined killing temperatures using freeze-induced electrolyte leakage and direct observation. In midwinter, cottonwood survived cooling to −70°C, while saltcedar was killed at −33 to −47°C. Frost sensitivity, therefore, may limit northward expansion of saltcedar in North...


    map background search result map search result map Latitudinal variation in cold hardiness in introduced Tamarix and native Populus FSA 10:1 NAIP Imagery m_2910056_ne_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_2910056_nw_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_2910056_se_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_2910056_sw_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map USGS 1:62500-scale Quadrangle for Cline, TX 1949 USGS 1:62500-scale Quadrangle for Cline, TX 1949 USGS 1:24000-scale Quadrangle for Cline, TX 1974 FSA 10:1 NAIP Imagery m_2910056_ne_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_2910056_nw_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_2910056_se_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_2910056_sw_14_1_20140701_20141006 3.75 x 3.75 minute JPEG2000 from The National Map USGS 1:24000-scale Quadrangle for Cline, TX 1974 USGS 1:62500-scale Quadrangle for Cline, TX 1949 USGS 1:62500-scale Quadrangle for Cline, TX 1949 Latitudinal variation in cold hardiness in introduced Tamarix and native Populus