Human capital is generally considered to be the attributes of the people who work at the organisation - their leadership characteristics, their skills, talent, competence, education, intelligence, know-how, creativity, and so on. These are humans seen as individuals, and the sum of their individual attributes. Knowledge management can help enhance some of these attributes, but Knowledge Management itself is not an individual attribute.
Read more: Knoco stories: Why KM is about people, but not about human capital http://www.nickmilton.com/2012/07/why-km-about-people-but-not-about-human.html#ixzz3BiKMXb3v