Huicui Lu (2016)

Huicui Lu, 2016 Scientific Visits Huicui Lu, from the Forest Ecology and Forest Management Group of Wageningen University in the Netherlands, worked on productivity modelling in mixed-species stands in relation to stand structure and soil, using permanent plot data from Dutch forests. She visited the Department of Silviculture and Forest Management, INIA-CIFOR (Forest Research Centre), Spain, where she was hosted by Dr. Miren del Río. The visit took place 25 June - 16 July, 2016.

The objective of the project was to conduct research on modelling productivity in mixed-species stands on different soils, using data from permanent field plots in Dutch forests. Huicui Lu applied mixed stands modelling methods, developed by the host Dr. Miren del Río, that studied Scots pine ( Pinus sylvestris L.)—common beech ( Fagus sylvatica L.) mixed stands in Spain. The mixed stands’ models developed by Dr. Del Río take species proportion, stand density, stand age, site quality and species interaction in mixed stands into account, and quantify the mixing effect on volume growth of common beech and Scots pine modulated by stand density. The results revealed higher timber production at certain stand circumstances when mixing these two species.

Huicui Lu applied the above mentioned models to three two-species mixed stands and their corresponding pure stands in the Netherlands: Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco) with common beech; Scots pine with common oak ( Quercus robur L.); common oak with common beech; and common oak with silver birch ( Betula pendula Roth). The mixed-stand growth and yield data are derived from long-term measurements in permanent field plots.

After the visit, Huicui Lu will continue the analysis of the mechanisms underlying the complementarity effects in species mixing, and those that are related to important drivers of the diversity—productivity relationship.