Bryophyte and polypore richness and indicators in relation to type, age and decay stage of coarse woody debris of Picea abies

Forest floor microsite conditions and tree seedling establishment were studied at an old-growth Picea-Abies forest in Hokkaido Island, northern Japan. Tree seedlings were established abundantly on coarse woody debris (CWD) from decay class III, a class indicating moderate decay, to class V, the most advanced decay class. The height-class distribution of tree seedlings indicates that the recruitment of Picea glehnii (Fr. Schm.) Masters and Picea jezoensis (Sieb. et Zucc.) Carr. seedlings on CWD started on decay class II and was mostly restricted to CWD decay class III. Seedlings of Abies sachalinensis (Fr. Schm.) Masters also favored establishment on CWD but had a wide adaptability to most of the microsites. Although CWD functioned as a suitable seedbed, water extracts from CWD were acidic and had quite low mineral nutrient concentrations. Tree seedling establishment did not necessarily require high levels of nutrient content in microsites. Although the forest floor was largely covered by CWD, with 2056 m2·ha-1 of the total projected area covered by CWD, CWD decay class III covered only 366 m2·ha-1 of the forest floor, indicating that CWD as a functioning seedbed is limited by time and space on the forest floor.

Download Full-text

Airborne fungal colonisation of coarse woody debris in North Temperate Picea abies forest: impact of season and local spatial scale

Mycological Research ◽

10.1017/s0953756204002084 ◽

2005 ◽

Vol 109 (4) ◽

pp. 487-496 ◽

Cited By ~ 24

Author(s):

Rimvydas Vasiliauskas ◽

Vaidotas Lygis ◽

Karl-Henrik Larsson ◽

Jan Stenlid

Keyword(s):

Picea Abies ◽

Spatial Scale ◽

Coarse Woody Debris ◽

Woody Debris ◽

Fungal Colonisation ◽

Forest Impact

Download Full-text

Relationship Between Relative Wood Density of Picea abies Logs and Simple Classification Systems of Decayed Coarse Woody Debris

Scandinavian Journal of Forest Research ◽

10.1080/02827589950154159 ◽

1999 ◽

Vol 14 (5) ◽

pp. 454-461 ◽

Cited By ~ 36

Author(s):

Erik Næsset

Keyword(s):

Picea Abies ◽

Wood Density ◽

Coarse Woody Debris ◽

Woody Debris ◽

Classification Systems ◽

Simple Classification

Download Full-text

Coarse woody debris in late-successional Picea abies forests in northern Europe: Variability in quantities and models of decay class dynamics

Forest Ecology and Management ◽

10.1016/j.foreco.2010.05.035 ◽

2010 ◽

Vol 260 (5) ◽

pp. 770-779 ◽

Cited By ~ 32

Author(s):

Tuomas Aakala

Keyword(s):

Picea Abies ◽

Coarse Woody Debris ◽

Woody Debris ◽

Northern Europe ◽

Decay Class

Download Full-text

Characteristics of coarse woody debris in the «Vepssky Forest» reserve, a reference of primeval middle boreal forests

Известия СПбЛТА ◽

10.21266/2079-4304.2021.236.198-211 ◽

2019 ◽

pp. 198-211

Author(s):

М.А. Шорохова ◽

Г.В. Березин ◽

Е.А. Капица ◽

Е.В. Шорохова

Keyword(s):

Picea Abies ◽

Coarse Woody Debris ◽

Boreal Forests ◽

Sustainable Forest Management ◽

Woody Debris ◽

Tree Age ◽

Ecosystem Functions ◽

Leningrad Region ◽

Managed Forests ◽

Forest Reserve

Для разработки стратегии управления крупными древесными остатками с целью восстановления биологического разнообразия и экосистемных функций интенсивно эксплуатируемых лесов необходимо знать эталонные характеристики крупных древесных остатков, т. е. их характеристики в лесах, не затронутых хозяйственной деятельностью в течение продолжительного времени. В коренных лесах естественные нарушения (пожары, ветровалы и вспышки размножения насекомых) приводят к образованию значительных объемов крупных древесных остатков. Исследования осуществляли в 2020 г. в лесном массиве резервата «Вепсский лес», расположенного на Вепсовской возвышенности, в восточной части Ленинградской области. Учет крупных древесных остатков проводили на 74 круговых пробных площадях по 0,1 га, заложенных регулярно и представляющих собой разнообразие возрастных и динамических состояний древостоев резервата. Оценены запасы крупных древесных остатков (КДО) в массиве коренных среднетаежных лесов резервата «Вепсский лес». Общий запас крупных древесных остатков на всех круговых пробных площадях (7,4 га) составил 14456 м3, варьируя от 30 м3га-1 до 532 м3га-1, составляя в среднем 195 м3га-1. Наибольший запас КДО, в среднем 231 м3га-1, отмечен в ельниках черничных на дренированных суглинках. Преобладающую часть составляли КДО ели (Picea abies) 2-го и 3-го классов разложения. Ветровальная динамика древостоев массива резервата «Вепсский лес» обусловила структуру пула КДО, который представлен, в основном, валежом и зависшими деревьями. Значительные запасы КДО, их разнообразие по древесным породам, категориям (положению субстрата) и степени разложения позволяет предположить наличие редких ксилофильных видов и высокое разнообразие ксилофильных сообществ в лесном массиве «Вепсский лес». Developing sustainable forest management strategy targeted to preserve biodiversity and forest ecosystem functions in managed forests requires knowledge of the characteristics of coarse woody debris in primeval (reference) forests. Natural disturbances such as fires, windthrows, and insect outbreaks cause significant tree stand mortality and consequently lead to the high input of coarse woody debris (CWD) [in primeval forests]. The study was carried out in 2020 in the «Vepssky Forest» reserve, which is situated in the eastern part of Leningrad region, Russia. The data were collected from 74 permanent circular sample plots (0.1 ha each). The tree stands were variable in terms of tree age structure, species composition, site type, and stage of successional dynamics. The stocks and diversity of CWD were evaluated in primeval forest ecosystems of the «Vepssky Forest» reserve. The volume of CWD varied from 30 to 532 m3ha-1, and averaged 195 m3ha-1. The highest amounts of CWD were found in the forest stands of Myrtillosum type (mean 231 m3ha-1). Norway spruce (Picea abies) CWD in the second and third decay classes had the highest share of all CWD volume.

Download Full-text