objectiveSHAPE- The impact of forest management intensity and neighborhood diversity on tree crown attributes
contentThe structure and shape of a tree crowns is related to tree growth and is of special importance for species of various taxa. It is well known that crown dimensions can be controlled by forest management. However, information on how silvicultural interventions and competition by neighboring trees modify the shape of tree crowns and branch ramification structure is scarce. This project uses terrestrial laser scanning to provide such information based on three-dimensional models of trees that grew up in stands that are characterized by different management intensities and species diversity. Furthermore, the unique spatial information will be used to measure and compare three-dimensional space filling in forest stands of varying management intensities and species diversity.
appropriation period01.04.2014-31.03.2017
funded byGerman Science Foundation
partnersBiodiversity Exploratories (DFG Priority Programm 1374)
person in chargeJulia Juchheim and Dr. Dominik Seidel
publicationsJuchhheim J, Ehbrecht M, Schall P, Ammer C, Seidel D (2020) Effect of tree species mixing on stand structural complexity. Forestry 93: 75-83, DOI:10.1093/forestry/cpz046

Juchheim J, Ammer C, Schall P, Seidel D (2017) Canopy space filling rather than conventional measures of structural diversity explains productivity of beech stands. Forest Ecology and Management 395: 19-26

Juchheim J, Annighöfer P, Ammer C, Calders K, Raumonen P, Seidel D (2017): How management intensity and neighborhood composition affect the morphology of beech (Fagus sylvatica L.) trees. Trees – Structure and Function 31: 1723-1735. DOI 10.1007/s00468-017-1581-z

Allan E, Bossdorf O, Dormann CF, Prati D, Gossner MM, Tscharntke T, Blüthgen N, Bellach M, Birkhofer K, Boch S, Böhm S, Börschig C, Chatzinotas A, Christ S, Daniel R, Diekötter T, Fischer C, Friedl T, Glaser K, Hallmann C, Hodac L, Hölzel N, Jung K, Klein AM, Klaus VH, Kleinebecker T, Krauss J, Lange M, Morris EK, Müller J, Nacke H, Pasalic E, Rillig MC, Rothenwöhrer C, Schall P, Scherber C, Schulze W, Socher SA, Steckel J, Steffan-Dewenter I, Türke M, Weiner CN, Werner M, Westphal C, Wolters V, Wubet T, Gockel S, Gorke M, Hemp A, Renner SC, Schöning I, Pfeiffer S, König-Ries B, Buscot F, Linsenmair KE, Schulze E-D, Weisser WW, Fischer M (2014) Interannual variation in land-use intensity enhances grassland multidiversity. Proceedings of the National Academy of Sciences 111 (1): 308-313. doi:10.1073/pnas.1312213111

Ehbrecht M, Schall P, Juchheim J, Ammer C, Seidel D (2016) Effective number of layers: a new measure for quantifying vertical stand structure based on terrestrial LiDAR. Forest Ecology and Management 380: 212-223

Schall P, Ammer C (2013) How to quantify forest management intensity in Central European Forests. European Journal of Forest Research 132: 379-396. DOI: 10.1007/s10342-013-0681-6