Istorinio Obelynės želdyno pietinės dalies būklė ir dendrologinės vertybės
| Author | Affiliation | |
|---|---|---|
LT | ||
| Date |
|---|
2012 |
Straipsnyje apžvelgiama Obelynės želdyno pietinės dalies istorija, asmeninis Tado Ivanausko indėlis kuriant želdyną tarpukario Lietuvoje ir sovietiniu laikotarpiu. Analizuojama parko raida ir būklė po profesoriaus T. Ivanausko mirties. Įvertinta dabartinė pietinės Obelynės želdyno dalis (praėjus 40 metų po parko įkūrėjo mirties), čia augančių sumedėjusių augalų sistematika, dendrometriniai duomenys. Nustatyta, kad pietinė Obelynės dalis išliko autentiškiausia, beveik tokia pati, kokią profesorius T. Ivanausko sukūrė. Inventorizavus šiandieninius pietinės dalies želdyno sumedėjusius augalus nustatyta, kad pušūnų parke auga 13 taksonų, magnolijūnų – 80 taksonų. Jie priklauso 25 šeimoms ir 52 gentims. Įvertinus sumedėjusių augalų būklę nustatyta, kad didžiausią dalį sudaro geros ir patenkinamos būklės sumedėję augalai, rasti 33 sausuoliai.
Pinophyta and Magnoliophyta taxa are dominated by naturally occurring plants: species, forms, cultivars. In the southern part of Obelyne 27 pcs of plants are in good condition, and 25 units are in satisfactory condition. There are not many bad condition plants, dominated by Magnoliophyta. Deadwoods are 33 pcs, mostly Pinophyta.
In Lithuania there are no historical parks, which have the exceptional dendrological value and are related to our society or to culturally meritorious persons. However, the Obelyne park should be granted the historical park status as it demonstrates and reveals the past activity of the most honoured scientist and academician in Lithuania, T. Ivanauskas. The Obelyne park is his dendrological and cultural heritage to other generations. The aim of the research was to evaluate the dendrological values and condition of the southern part of the park. Tasks were as follows: • Select growing trees planted by T. Ivanauskas himself or by other people under his guidance; • Make an inventory of woody plants; • Assess the condition of woody plants. Research based on analysis of literature about historical facts of the past management in the Obelyne park was made. The following dendrometrical data were collected in the field: measurements of tree heights, girth and evaluation of state. The data of tree species (receiving history and significance for alien species) that were planted by T. Ivanauskas were collected. The results reveal dendrometrical indicators of the most valuable trees. According to the information, some of tree species from the southern part were the first ones planted in Lithuania and are considered to be rare. The southern part of the park is the most authentic, al¬most the same as it was created by prof. T. Ivanauskas before World War II. The southern part of the Obelyne dendroflora consists of 48% scrubs and 52% sprouts. Most plants are Crataegus mo-nogyna - 94pcs. Pinophyta consists of 13 plant taxa belonging to 8 genuses and 3 families. Magnoliophyta has 80 plant taxa belonging to 44 genuses and 22 families. Magnoliophyta plants are abundantly represented by Rosaceae family - 17 plant taxa.