Fourteen years of mapped, permanent quadrats in a northern mixed prairie, USA
Fourteen years of mapped, permanent quadrats in a northern mixed prairie, USA
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美国北部混合草原十四年绘制的永久样方图
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
P. Adler
中科院分区：
文献类型：
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作者：
Jed Anderson;L. Vermeire;P. Adler
这一历史数据集包括44个永久性的1平方米样方，位于美国蒙大拿州迈尔斯城的北部混合草原上。从1932年到1945年，每年都对这些样方中的个别植物进行识别和绘制地图。样方鼠分布在6个牧场，分别为轻、中、重放牧处理，放牧率分别为1.24、0.92和0.76公顷/畜-单位月(每个牧场两个牧场)。这些数据提供了独特的机会来测试放牧和气候变量对人口率、植物-植物相互作用以及种群和群落动态的交互影响。我们提供以下数据和数据格式：(1)Shapefile格式的数字化地图；(2)整个数据集的表格版本[为每个多年生植物记录用一个(x， y)坐标替换完整的空间数据的表格]；(3)放牧处理信息；(4)每个样方取样的年份清单；(5)物种清单，包含植物生长形式和Shapefile几何类型的信息(例如，点或面)；(6)物种名称的变化记录；(7)每日降水和温度记录；(8)样方中一年生植物的数量(一年生植物是由原始的测图员统计的，而不是测绘的)。
与该期刊数据论文部分发表的摘要相对应的完整数据集以电子方式发表在生态档案馆<http://esapubs.org/archive>上。(每份数据文件的登录号直接列在标题下方。)
This historical data set consists of 44 permanent 1-m2 quadrats located on northern mixed prairie in Miles City, Montana, USA. Individual plants in these quadrats were identified and mapped annually from 1932 through 1945. Quadrats were located in six pastures assigned to cattle grazing treatments with light, moderate, and heavy stocking rates of 1.24, 0.92, and 0.76 ha/animal-unit-month (two pastures in each). These data provide unique opportunities to test the interactive effects of grazing and climate variables on demographic rates, plant–plant interactions, and population and community dynamics. We provide the following data and data formats: (1) the digitized maps in shapefile format; (2) a tabular version of the entire data set [a table that replaces the full spatial data with one (x, y) coordinate for each individual perennial plant record]; (3) grazing treatment information; (4) an inventory of the years each quadrat was sampled; (5) a species list, containing information on plant growth forms and shapefile geometry type (e.g., points or polygons); (6) a record of changes in species names; (7) daily precipitation and temperature records; and (8) counts of annual plants in the quadrats (annuals were counted, not mapped, by the original mappers).
The complete data sets corresponding to abstracts published in the Data Papers section of the journal are published electronically in Ecological Archives at 〈http://esapubs.org/archive〉. (The accession number for each Data Paper is given directly beneath the title.)