Titlebook: Swiss National Forest Inventory – Methods and Models of the Fourth Assessment; Christoph Fischer,Berthold Traub Book 2019 Springer Nature

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Remote Sensing Data Sourcesfrared (CIR) sensor data in use today. In addition to applying aerial stereo-image-based interpretation on different sampling grids, area-wide data sets were developed and produced within the framework of the NFI4.?In addition to aerial images, satellite images are also increasingly being used.

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State and Change of Forest Resourcesied in the fourth NFI were described in previous publications, but some of them have subsequently been completed or adjusted based on methodological developments. This chapter mainly updates descriptions published previously.

climax

Assortments the stem forms are described, the potential merchantable assortments are estimated by optimising cutting points along these hypothetical boles.?This procedure is applied to NFI trees irrespective of their actual timber harvesting status, resulting in an estimate of the potential available assortments in the total Swiss growing stock.

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Time Study of the Terrestrial Inventory and Interview Surveys (including driving time and training), with large differences from region to region.?The total time expenditure for the interview survey 2013/2014 amounted to 4360 person-hours, with a mean of 5.5 hours spent on each interview. These data were valuable for the operational and financial planning of NFI5, which began in 2018.

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Whole Tree Biomass and Carbon Stocknd branchwood, and on foliage and root biomass correlations with tree diameter. Biomass and C stock are estimated at the individual tree level, thereby ensuring accuracy and consistency of the estimates.

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1568-1319 ical details of sampling designs and statistical results ana.The Swiss National Forest Inventory (NFI) is a forest survey on national level which started in 1982 and has already reached its 5th survey cycle (NFI5). It can be characterized as a multisource and multipurpose inventory where information

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Book 2019I5). It can be characterized as a multisource and multipurpose inventory where information is mainly collected from terrestrial field surveys using permanent sample plots. In addition, data from aerial photography, GIS and forest service questionnaires are also included..The NFI‘s main objective is