A Pannon bennszülött tartós szegfű védelme


Habitat reconstruction

The goal of the forestry intervention is to assure the interconnected habitat for the Dianthus diutinus (juniper-poplar scattered galleries with only indigenous tree and shrub species, variegated with extensive opened perennial sand grassland mosaics), close to the original conditions.

From the forestry point of view this activity envisaged in the project can be divided into two main implementation parts:

A.        Tree cutting and
B.        Forest restructuring.

In case of invasive non-indigenous tree species -due to their invasive characteristics- numerous tree stands appeared as a result of regeneration from shoots and spread to the grassland parts of the project areas. Since they threaten Dianthus diutinus populations due to their shading effect and overspreading, the “Tree cutting” interventions related to C1 actions are necessary to be implemented on these grassland sites too and so C1 activity partly improve the restoration of the grassland part of the project areas, where needed.

„Forest restructuring” activity won’t be implemented at any presently grassland part of the sites.


Project site

Tree cut

Forest reconstruction (ha)


Potential Dianthus diutinus habitat created (ha)























Habitat restoration

One of the greatest threats to the perennial sand grassland is the spread of non-native, alien (American, Asian), aggressive invasive plants, especially the Asclepias syriaca.

The aim is to eliminate from the project sites the whole stand of Asclepias syriaca.


Project site: 




Total area

 Area of implementation (Ha):






Our former researches enduring for year show, that mechanical defence against the invasive A. syriaca (pulling up the stocks) does not lead to a significant result. Having regard for the fact that A. syriaca has only very few natural enemies, and because it is poisonous, the grazing animals do not eat it, the only way to force it back is the use of chemicals. Since Asclepias syriaca possesses a strong, underground rizoma system, the mechanical extirpation do not show effective results. For this reason the use of chemicals is the only way to defend against it.

When using chemicals we must strictly consider to use only chemical which has delayed effect, for the reason to destroy not only the sur-, but the subground parts of the plant. The chemical and must not get out from the root and risoma system into the soil. Extraordinary care should taken during the treatment of the Asclepias individuals, in order to avoid the effect of the chemical to other plants (when using it in semi-natural habitat) especially the Dianthus diutinus.

Ex situ conservation

The aim of the action is to strengthen and stabilize the existing populations with the increase of the number of individuals and to build up novel population of D. diutinus.

The increase of the number of the individuals is carried out with the out-planting of plants grown in pots by ex situ propagation.  The sites of this action are the areas being deforested in this project between the existing D. diutinus population fragments, and those areas of population fragments, where the number of the individuals is critically low.

Botanical scientist of the University of Szeged worked out the method of ex situ conservation of Dianthus diutinus. According to their results individuals can be grown up from seeds. Th generative state of the individuals coul reach within 1 year.

The ex situ activities of the action can be summarized as following:

  • DNA analysis to gain information about the genetic diversity of the speies  to plan the seeg collecting and out-planting and to analyze the possible effect of the out-planting, two times in the project period:
  • Before the out-planting
  • After the out-planting, in the last year of the project.
  • Establish a nursery for the ex situ growing seedling in the Botanic Garden of the University of Szeged
  • Out-planting of 15 000 seedling grown up from collected seeds to project sites


Monitoring activity needs to be done in order to obtain precise information on the actual population size of D. diutinus, on its whole distribution area. Results of this action will be analysed and upon them the project success can be evaluated.

  • Detailed monitoring activity takes place in the three permanent square sample plots, 10x10 m in size with 30x30cm microquadrates. The activities in this units are:
  • the mapping of the individuals, their fenological state (number of buds/sprouts, flowers and cores) of the individuals
  • instead of repetitions in every three year according to the NBmR protocol, we are planning repetitions in every year        
  • Field monitoring on the population changes of Dianthus diutinus: counting and mapping of individuals by collecting GPS data.
  • Monitoring of the regeneration of the vegetation in place of the forest regeneration and grassland restoration area.
  • Monitoring of the effect of the eradication on the invasive alien species Asclepias syriaca. (Action D1) by mapping (collecting GPS data)
  • Monitoring of the survival rate of the reintroducted Dianthus diutinus specimen (mapping the distribution of the out-planted individuals) by identifying the accurate location by GPS and collecting data about the vitality of the plants. General project branding and awareness raising

Due to the intensive dissemination of project goals and results, local people will be informed and will understand the need for the project’s effort.

To avoid unwanted demolition local people, foresters should be informed about the target species and it’s habitat. 

Therefore intensive communication is going through local and national media. An opening press congress followed by a press trip was organized to launch the project aims, the activities and the expected results (see reports).  

Kiskunsági Nemzeti Park Duna-Ipoly Nemzeti Park Szegedi Tudományegyetem Kiskunmajsa Környezetvédelmi és Vízügyi Minisztérium