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WBC-VIII-Vol.4 – Resources – Forestry, Plantations and ... - BambuSC

WBC-VIII-Vol.4 – Resources – Forestry, Plantations and ... - BambuSC

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esidues (Deuchars et al. 1999). Soil structure is associated to vegetal residues (Douglas et al. 1986) <strong>and</strong><br />

probably fallen leaves of guadua are contributing to improve it. With the results obtained it is not possible make<br />

general conclusions because there is a high natural variability associated to variables assessed. This variability<br />

can not be explained simply with the effect of covers, therefore is only feasible to elucidate trends. In this sense,<br />

to improve the basic information could be an interesting task for further research.<br />

8<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

mm<br />

b<br />

a<br />

Forest Guadua<br />

Forest<br />

Mixed crops Silvopastoral<br />

System<br />

Crops Pasture<br />

Figure 14. Resistance to erosion evaluated through average diameter of soil aggregates<br />

(ADSA). La Vieja, watershed river. Vertical lines on the bars indicate the st<strong>and</strong>ard deviation.<br />

Different letters indicate statistical significant differences (P

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