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curves_loblolly_pine_25
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curves_loblolly_pine_25 [2012/04/05 19:11] ddrummond |
curves_loblolly_pine_25 [2013/02/05 15:37] (current) 172.20.23.159 |
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| + | <html> | ||
| + | <!--[if lt IE 9]><script language="javascript" type="text/javascript" src="lib/plugins/jqplot/excanvas.js"></script><![endif]--> | ||
| + | <script language="javascript" type="text/javascript" src="lib/plugins/jqplot/jquery.min.js"></script> | ||
| + | <script language="javascript" type="text/javascript" src="lib/plugins/jqplot/jquery.jqplot.min.js"></script> | ||
| + | <script type="text/javascript" src="lib/plugins/jqplot/jqplot.highlighter.min.js"></script> | ||
| + | <script type="text/javascript" src="js/siteIndexChart.js"></script> | ||
| + | <link rel="stylesheet" type="text/css" href="lib/plugins/jqplot/jquery.jqplot.css" /> | ||
| + | </html> | ||
| + | |||
| ====== Site Index Curves ====== | ====== Site Index Curves ====== | ||
| ===== Loblolly Pine 25 Year Basis ===== | ===== Loblolly Pine 25 Year Basis ===== | ||
| + | <html> | ||
| + | <div id="chartdiv-wrapper"> | ||
| + | <div id="chartdiv"></div> | ||
| + | </div> | ||
| + | <script type="text/javascript"> | ||
| + | var options = { | ||
| + | title: 'Loblolly Pine 25 Year Basis', | ||
| + | containerId: 'chartdiv', | ||
| + | baseAge: 25, | ||
| + | bVars: [-2.41737, -273.824, 4227.7, -19758.5], | ||
| + | ageMin: 0, | ||
| + | ageMax: 70, | ||
| + | ageStep: 5, | ||
| + | siMin: 40, | ||
| + | siMax: 80, | ||
| + | siStep: 10 | ||
| + | } | ||
| + | siteIndexChart = new SiteIndexChart(options); | ||
| + | </script> | ||
| + | </html> | ||
| + | |||
| + | --Site index curves for loblolly pine at index age 25 years in the coastal plain of Virginia, | ||
| + | North Carolina, and South Carolina. (These curves are based stem analysis of 40 dominant trees | ||
| + | in the middle and lower Coastal Plain.) | ||
| + | |||
| + | ===Test and Comparison of Site Index Curves=== | ||
| + | Seventy-four permanent growth plots in another study were provided independent data for testing our | ||
| + | new site index curves with those of Schumacher and Coile (1960). We chose the Chumacher-Coile curves | ||
| + | for purposes of comparison because they are widely used in estimating growth and yield of loblolly | ||
| + | pin in the Southeastern Coastal Plain. When the growth plots were established in 1949, they ranged in | ||
| + | age from 16 to 50 years and in site index (age 50) from 63 to 119 feet. Measurements of these 74 plots | ||
| + | at 5-year intervals for 20-year period furnished 364 separate estimates of age and height. | ||
| + | \\ | ||
| + | \\ | ||
| + | Reproduced from USDA For. Ser. Res. Paper SE-115, June 1974. | ||
curves_loblolly_pine_25.1333653117.txt.gz · Last modified: 2012/04/05 19:11 by ddrummond
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