Index: DamEngine/trunk/xsd/DamSoil.xsd
===================================================================
diff -u -r4560 -r4669
--- DamEngine/trunk/xsd/DamSoil.xsd	(.../DamSoil.xsd)	(revision 4560)
+++ DamEngine/trunk/xsd/DamSoil.xsd	(.../DamSoil.xsd)	(revision 4669)
@@ -41,5 +41,6 @@
     <xs:attribute name="RRatio" type="xs:double" use="optional" />
     <xs:attribute name="StrengthIncreaseExponent" type="xs:double" use="optional" />
     <xs:attribute name="RatioCuPc" type="xs:double" use="optional" />
+    <xs:attribute name="Pop" type="xs:double" use="optional" />
   </xs:complexType>
 </xs:schema>
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