@aoh2 = ({map { %$_ } (@aoh1, @aoh2)});

##</code><code>##

@aoh1 = ({ 'key1' => 'value1',
           'key2' => 'value2' });
@aoh2 = ({ 'key3' => 'value3',
           'key4' => 'value4' },
         { 'key5' => 'value5',
           'key6' => 'value6' });

@aoh2 = ({map { %$_ } (@aoh1, @aoh2)});

##</code><code>##

@aoh2 = (
          {
            'key5' => 'value5',
            'key2' => 'value2',
            'key6' => 'value6',
            'key4' => 'value4',
            'key1' => 'value1',
            'key3' => 'value3'
          }
        );