Yulia L. Bredikhina(1,2)*, Natalia M. Turovtseva(2), and Serhii M. Podorozhnyi(2)

1. Khortytska Natsionalna Navchalno-Reabilitatsiyna Akademiya, 59 Naukove Mistechko Str., Khortytsia Island, 69017 Zaporizhzhya, Ukraine. *E-mail: bredikhina_j@i.ua
2. Bogdan Khmelnitsky Melitopol State Pedagogical University, 20 Hetmanska Str., 72318 Melitopol, Ukraine. E-mail: natali.turovceva@ukr.net

This work depicts the plan of the volume-space arrangement of the Novooleksandrivsky park in Melitopol, Zaporizhzhya region, Ukraine. All of the landscape composition structures are present in the park plan. Nevertheless, in some cases the ornamental plant species and forms of the trees aren´t regularly used. The low percentage of open spaces doesn’t permit to create multiplan compositions. Some species like Platycladus orientalis, Juniperus virginiana tend to lose their ornamental properties, reducing their aesthetic values. It is not characteristic of a national monument of gardening art.

Ihor F. Buksha, Tetiana S. Pyvovar, Maksym I. Buksha, Volodymyr P. Pasternak*, and Taras I. Buksha

Ukrainian research institute of forestry and forest melioration named after G.M. Vysotsky (URIFFM), Laboratory of forest monitoring and certification, 96 Pushkinska Str., 61024 Kharkiv, Ukraine. *E-mail: pasternak65@uriffm.org.ua

In Ukraine and elsewhere on the planet, study of climate change effects on forests is ofgreat public interest. The study aimed to evaluate climate humidity dynamics in the 21st century according to Vorobiev indicator under RCP 4.5 and RCP 8.5 scenarios. E-OBS and EURO-CORDEX project climate data were used. Climate humidity indicator by Vorobiev was used to assess the suitability of climatic conditions for forests (suitable conditions are from fresh to wet forest types). In the current climate condition in Ukraine the climate humidity varies from very dry in the south to very wet in the Carpathians. Dry (30 %) and fresh (40.1 %) types dominate. Comparing to 1961–1990, aridity has increased, boundaries of climatic zones shifted by 1 class to the north for the plains of Ukraine and to higher elevation for the Carpathians. In the Forest and the Forest-Steppe zones the fresh climate prevails, wet climate becomes less represented. Climate condition suitable for forests covers about 50 % of the country area. Both scenarios show a further aridity increase and climate zones shift to the north. Under the RCP 4.5, the areas of wet and fresh climate are expected to decrease with substitution by dry climate. In 2040–2060 the area of conditions suitable for forests will decrease to 37 % of the country area, and to 30 % in 2080–2100. Favourable conditions for the forest will remain only in the Carpathians, the western Forest-Steppe and partly in Forest zones. Under the RCP 8.5 scenario, the process of climate aridization will accelerate: dry climate types are expected to dominate. The area suitable for forest conditions will decrease significantly to 30 % in the middle and to 10 % at the end of the century. 

Abiodun Oladipo(1,4), Ademola Adebayo(2,4), Olakunle Ogunyemi(3,4),
Adegboyega Aduradola(4), and Fu Fang-Fang(1)*

1. Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry,
Nanjing Forestry University, 210037 Nanjing, Jiangsu, China. E-mails: oladipoabiodun@njfu.edu.cn; fffu@njfu.edu.cn*
2. Department of Forest and Conservation Sciences, Faculty of Forestry, University of British
Columbia, V6T1Z4 B.C, Vancouver, Canada. E-mail: aadebayo@alumni.ubc.ca
3. Department of Social and Environmental Forestry, University of Ibadan, 900001 Ibadan,
Oyo State, Nigeria. E-mail: olakunle4impact@yahoo.com
4. Department of Forestry and Wildlife Management, Federal University of Agriculture,
Abeokuta, Ogun state, Nigeria. E-mail: amaduradola@yahoo.com

We examined the effects of two mycorrhizae fungi (endomycorrhiza and ectomycorrhiza) and varying moisture supply on certain growth parameters of Cassia fistula L. seedlings. The seedlings were inoculated with endomycorrhiza and ectomycorrhiza, compared with no mycorrhiza, and watered every day, every other day and once a week for a period of 12 weeks. The results revealed that mycorrhiza contributed significantly to relative water content while moisture supply also significantly influenced shoot height, collar diameter, leaf number, fresh weight of leaves, turgid weight of leaves, fresh weight of shoots, and fresh weight of roots. However, interaction of mycorrhiza and moisture supply had no significant effect on seedling growth of C. fistula but endomycorrhiza at watering every other day had the best growth performance.

Pandu Yudha Adi Putra Wirabuana(1)*, Budi Mulyana(1), Alnus Meinata(2),
Fahmi Idris(2), and Ronggo Sadono(1)

1. Department Forest Management, Faculty of Forestry, Universitas Gadjah Mada, Jln. Agro No. 1 Bulaksumur, Sleman 55281, Daerah Istimewa Yogyakarta, Indonesia. *E-mail: pandu.yudha.a.p@ugm.ac.id
2. Graduate School of Forestry, Universitas Gadjah Mada, Jln. Agro No.1 Bulaksumur, Sleman 55281, Daerah Istimewa Yogyakarta, Indonesia.

Understanding the essential contribution of community forests for industrial development or climate change mitigation principally requires the accurate measurement of merchantable wood and aboveground biomass. However, the quantification of those parameters using the destructive method requires high cost and time consuming. To anticipate these constraints, allometric equations development has a potential contribution to facilitate a more efficient estimation of wood and biomass production without disturbing forest regeneration capacity. Therefore, this study aimed to develop allometric equations for quantifying merchantable wood and aboveground biomass of community forest tree species. The destructive sampling was carried out on 45 trees from three species (15 trees each), namely Swietenia macrophylla King, Falcataria moluccana (Miq.) Barneby et J.W.Grimes, and Tectona grandis L.f. Furthermore, three general allometric equations were examined using some predictor variables, i.e. diameter at breast height (D), quadrat diameter at breast height combined with tree height (D²∙H), as well as D and H separately. The results showed the highest average of merchantable wood and aboveground biomass recorded in S. macrophylla (0.41 ±0.10 m³; 0.33 ±0.07 t), followed by T. grandis (0.20 ±0.07 m³; 0.18 ±0.06 t) and F. moluccana (0.16 ±0.05 m³; 0.06 ±0.02 t). Meanwhile, the relative contribution of foliage biomass to total aboveground biomass gradually declined along with the increasing diameter classes. In contrast, a fluctuating trend was observed in the stem and branch. Also, equation ln Y = lna + b∙lnD was best in quantifying the wood and biomass. The addition of H as a predictor variable in the equations did not show a meaningful influence to increase accuracy estimation in the species. Based on these results, it was concluded that the development of allometric equations was reliable to facilitate more efficient estimation of merchantable wood and aboveground biomass for community forest tree species with over 95 % accuracy.