Review of researches in forest ecosystem management.
Zheng Jingming; Luo Juchun; Zeng Dehui. College of Resources and Environment, Beijing For. Univ., 100083, P.R.China.
On the basis of large amount of references, this paper makes a brief introduction of the origin, definition, characters and contents of forest ecosystem management. Meanwhile, five hot points are discussed including ecosystem health, biodiversity enhancement, landscape planning, alternative silvicultural systems and ecosystem service assessment. On the ecosystem health, definitions from utilization and ecosystem views are introduced, the contents and difficulties in assessing it are discussed. On the biodiversity enhancement, the relationship between forest structural complexity and forest biodiversity are discussed, the significance of old growth structure are highlighted, and measures of changing forest structure to promote forest biodiversity are put forward. On the landscape planning in forest management, some patterns, theoretical foundations and models are introduced, especially three conceptual models, i.e., key habitat\|corridors model, nature landscape model, and supportive features model. On the alternative silvicultural systems, reasons for developing alternative silvicultural system by mimic of nature disturbance are discussed, and some advanced techniques and their ecological basis are noted. Finally, on the ecosystem service, its contents and importance of assessment are illustrated. In summary, the paper makes a sketch of the newly emerging ecosystem management science which is different from traditional forestry with many new characteristics, such as muti\|principles, broader scale, adaptive approach and so on.