Lecture 3: Vegetation Sampling - Alaska Geobotany Center
Lecture 3: Vegetation Sampling - Alaska Geobotany Center
Lecture 3: Vegetation Sampling - Alaska Geobotany Center
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Clip Harvest <br />
• Normally, several small representa@ve areas (e.g. 0.1 m 2 <br />
for graminoid communi@es) are clipped. <br />
• Normally it is desirable to provide more detail from clip <br />
harvests than total mass per unit area. <br />
• Sor@ng of the harvest can be by any of several criteria, or <br />
combina@on thereof, for example: <br />
1. Species <br />
2. Growth forms <br />
3. Live vs. dead <br />
4. Foliar vs. woody (useful for determining green biomass) <br />
5. Plant parts (flowers, stems, leaves, seeds, etc.). <br />
• Once sorted, the components are oven dried (105° C) and <br />
weighed, and biomass expressed as mass/unit area
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