Monitoring of forest ecosystems for future multipurpose Danube – Sava canal for the period 2018 – 2019

Project name: Monitoring of forest ecosystems for future multipurpose Danube – Sava canal for the period 2018 – 2019

Client: Ministry of Maritime Affairs, Transport and Infrastructure
Period: 03/2018 – 12/2019
Funding: State Budget
Location: Croatia


The project included the establishment and implementation of several monitoring systems amongst which the following are included:

  1. Measurement of the inter-annual growth of pedunculate oak tree on 5 trees per location (total of 50 trees) manual dendrometers, with a reading accuracy of 0.1 mm
  2. Measurement of soil moisture with the Frequency Domain Reflectometry method and soil moisture measuring device on a total of 12 probes (8 locations per 1 probe and 2 locations per 2 probes), with soil moisture readings of at least 10 characteristic depths (up to maximum depth of 2 meters) and with time sampling dynamics that is completely consistent with the inter-annual growth.
  3. Monitoring of the health status of the dominant species of forest trees on the entire forest area (total of approx. 70000 ha) of potentially affected area (covering all forest areas along the MPCDS route and Spačva basin) by means of time series of high-resolution multispectral satellite images from MODIS and LANDSAT8 (at least 15 images at regular intervals during vegetation season), using standard parameters for assessing the health status of forests (vegetation indices).
  4. Establishment of transpiration (sap flow) )monitoring of the pedunculate oak tree by installing the TDP (Thermal Dissipation Probe) in 4 (out of a total of 10) pre-defined locations, and 2 in the community of the pedunculate oak with hornbeams (higher terrains) and two in the community of pedunculate oak without hornbeams (lower terrain). 20 sap flow sensors in total.
  5. Monitoring of pedunculate oak transpiration on 4 (out of 10) predefined locations, the two in the community of pedunculate oak forest with hornbeams (higher terrain), and two in the community of pedunculate oak without hornbeams (lower terrain,) with time resolution sampling that is completely consistent with the inter-annual growth and soil moisture.
  6. Development of a groundwater depth database with forest piezometers in the Spačva basin and statistical analysis of the time series of groundwater depths in the forest ecosystem, with particular reference to the possible recording of climate change consequences.
  7. Development of a database on the physio-chemical properties of soil from pedological profiles in Spačva basin spatial and analysis of the dependence of these properties on the geomorphologic characteristics of the terrain (especially with regard to micro-depression with occasional surface water stagnation).
  8. Development of an internal Geographic Information System (GIS) that will consolidate all data collected in the period 2004 – 2018.

Development of annual reports showing all results obtained from all activities, including statistical data processing, and the presentation and interpretation of the results of the various components of forest ecosystems monitoring carried out in the area concerned (inter-annual growth, soil humidity, the health status of forest tree transpiration) in each separate year.

Oikon d.o.o.

Oikon d.o.o.