Coarse woody debris (CWD) in forest ecosystems provides critical habitat for many organisms, maintains a healthy forest structure, and is important in the biogeochemical cycling of carbon and nutrients.

• 森林生态系统中的粗死木质残体(Coarse woody debris, CWD)不仅能够为其它生物提供生境,维持森林结构,而且对生物地球化学循环起着不可忽视的作用,CWD作为森林生态系统中重要的结构和功能元素,已经引起广泛关注。