Santa Celma

Latvijas Valsts mežzinātnes institūts "Silava"

Sweet cherry Prunus avium L. cultivated for wood production is selected and bred mainly based on its growth rate and stem properties to maximize the valuable timber outcome. However, the fruit of sweet cherry has ecological value as food source for animals and can also serve as an income source prior felling. It could be beneficial to consider frui...

Agricultural land abandonment due to biophysical and socioeconomic constraints is increasing across Europe. Meanwhile there is also an increase in bioenergy demand. This study assessed woody crop performance on several relevant types of marginal agricultural land in Europe, based on field experiments in Latvia, Spain and Ukraine. In Latvia, hybrid...

Cutaway peatland is a marginal land, which without further management is an unfavourable environment for plant growth due to low bearing capacity, high acidity and unbalanced nutrient composition of the soil. After wood-ash application, the soil becomes enriched with P and K, creating better conditions for tree growth. In addition to being economic...

Interest in agroforestry as land use practice continues to revive due to it's social, economic, and especially environmental and climate change mitigation benefits. This article encompasses results of productivity of hemiboreal agroforestry system combining rows of wild cherry and small-leaved lime with perennial grasses (Phalaris arundinacea L. an...

Management of cutaway peatlands is a key issue in many countries. Whilst afforestation has been considered as a suitable after use option for cutaway peatlands, growing conditions after peat harvest are often adverse. To increase soil fertility and neutralise soil acidity, wood ash, an energy production by-product, can be used. In this study, we ex...

The selection of most suitable propagation material, as well as the adjustment of existing seedling management practices, are gaining increasing importance to ensure the best outcomes under the long-term setting of climate change. One of the factors to consider is a predicted increase in the frequency and duration of high-temperature periods. Since...

The distribution of sweet cherry (Prunus avium L. syn. Cerasus avium Moench.) in natural woodlands of Latvia was studied. The growth, vitality and stem quality of the first-generation plantations established in Latvia in different agricultural soils using the planting stock of local origin was assessed. In woodlands, sweet cherry is found in 11 For...

The article [Effect of soil preparation method on root development of P. sylvestris and P. abies saplings in commercial forest stands], written by [Santa Celma, Katrīna Blate, Dagnija Lazdiņa, Kārlis Dūmiņš, Santa Neimane, Toms A. Štāls, Kristīne Štikāne], was originally published Online First without Open Access. After publication in volume [#], i...

Briežu vajadzības saduras ar mežsaimniecības interesēm, it sevišķi meža atjaunošanā, jo ziemošanas periodā briežu dzimtas dzīvnieku barības bāzē egle un priede ir būtiska sastāvdaļa

Daugaviete M., Lazdina D., Celma S., Daugavietis U. 2019. Characteristic growing parameters of small-leaved lime and Norway maple stands in the climatic conditions of Latvia. Acta Biol. Univ. Daugavp., 19 (2): 115-128. In order to clarify the suitability of small-leaved lime (Tilia cordata Mill.) and Norway maple (Acer platanoides L.) for plantatio...

Soil preparation is a common practice that precedes outplanting of Norway spruce (Picea abies) and Scots Pine (Pinus sylvestris) in boreal forests. It has been proven to enhance the survival and early growth of seedlings. Containerized P. abies and P. sylvestris saplings were excavated 1–3 years after outplanting in clear cut forests across Latvia....

To evaluate the potential of establishing a deciduous tree plantation on an industrial cutaway peatland over an 8 ha large experimental site was established in the central part of Latvia and silver birch (Betula pendula Roth) and black alder (Alnus glutionsa (L.) Gaertn.) tree species were planted. As it is a harsh and unfavorable environment wood...

Containirized seedlings of Picea sylvestris and Picea abies above - and belowground development were studied in sites regenerated 1- 3 years ago in Latvia. The seedlings rown in Myrtillosa turf. mel ., Mercurialosa mel., Myrtillosa mel., Vacciniosa mel., Myrtilloso - sphagnosa , Vaccinioso - sphagnosa type forests were measured. Development of see...

Notable amounts of wood ash containing plant macro and micronutrient elements in balanced proportions are produced in Latvia. If bioenergy production source product is plant material, and facilities are operating well, then 'side product' fermentation residues or wood ashes should not contain elements in toxic concentrations. Wood ash contains P an...