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• <br />Figure 7. Relationship of stem caliper growth of aspen to landscape fabric and <br />irrigation. <br />Landscape fabric increased the amount of soil moisture available to the plants (Fig. <br />8), which in turn provided more favorable leaf water potential (Fig. 9) and subsequent <br />increased growth of aspen. Photosynthesis was also higher on aspen growing on <br />• landscape fabric (data not shown). Soil moisture was 29% higher under the landscape <br />fabric compared to no fabric. <br />n <br />LJ <br />Figure 8. Soil moisture with or without landscape fabric.