TY  - BOOK
AU  - Van Dyne, George M.
TI  - The ecosystem concept in natural resources management
U1  - 333.7 
PY  - 1969///
CY  - London
PB  - Academic Press. Inc.
KW  - Ecosistemas
KW  - Medio Ambiente
KW  - Recursos Naturales
N1  - 0405; The meaning, origin and importance of ecosystem concepts. The natural resource ecosystem. Historical development of the ecosystem concept. Examples of research development and research results. Applying ecosistem concepts. Procedures for study of grassland ecosystems. The watershed- ecosystem concept and studies of nutrient cycles. A study of an ecosystem: the arctic tundra. Range management viewed in the ecosystem framework. Instilling the ecosystem concept in training
ER  -