3 years ago

Trend to increasing structural diversity in German forests: results from National Forest Inventories 2002 and 2012

Christoph Fischer, Andreas Mölder

Abstract

Key message

Six structural diversity indices were calculated from the German 2002 and 2012 National Forest Inventory (NFI) data. We found a slight trend of increasing structural diversity in German forests both for broadleaved and coniferous stand types. The results correspond well with current findings in forest ecology and silviculture and might serve as an initial step for further refinement of NFI analyses.

Context

Structural diversity, i.e., the variability in forest stand structures, is an integral part of current forest ecology discussions. We addressed the question of whether the scope of the German National Forest Inventory (NFI) can be widened by evaluating structural diversity indices. Diversity indices are neither an explicit subject of the current NFI protocol nor have they been derived from NFI data yet.

Aims

Six spatially inexplicit indices were applied to NFI data and methodologically discussed. An initial contribution for further methodological refinement of the NFI should be provided. Using these indices, changes in structural diversity between 2002 and 2012 were subsequently quantified and discussed.

Methods

Mean values and changes of the diversity indices were calculated for indicative forest stand types using tree data from angle count sampling. Estimation techniques for single stage cluster sampling were applied.

Results

With few exceptions, the results showed slight increases for each index and stand type. The results correspond well with current findings in forest ecology and silviculture and supplement published results of the NFI.

Conclusion

The indices proved to be appropriate within the framework of the NFI. This study should be considered as a cornerstone that supplements published results of the German NFI. It might be helpful within future discussions about structural diversity in German forests.

Publisher URL: https://link.springer.com/article/10.1007/s13595-017-0675-5

DOI: 10.1007/s13595-017-0675-5

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.