Wyniki wyszukiwania - AGRO

1

Modern forest policy problems in changing societies

100%

Synyakevych I. M., Soloviy I. P.

Forestry

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2002

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tom 05

2

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Allocation of elements in a chronosequence of silver birch afforested on former agricultural lands

86%

Gaweda T., Malek S., Zasada M.

Drewno. Prace Naukowe. Doniesienia. Komunikaty

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2014

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tom 57

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nr 192

Research on the effect of birch regeneration on changes occurring in the environment on former farmlands included a quantitative and qualitative analysis of the biomass growing on the research plots. Five experimental plots were selected in the Mazovia region: two in Dobieszyn and the Kampinos National Park and one in Kozienice. The analysis performed on each plot was concerned with the amount and chemical composition of biomass in four patches of vegetation, characterised by the different ages of the birch trees growing there. The vegetation patches were classified according to age group, i.e. I: 1–4 years old, II: 5–8 years old, III: 9–12 years old and IV: over 12 years old. Biomass samples were collected in the field and determined in kg DM/ha using the following components: roots, stem, bark,branches, assimilation apparatus, litterfall and the total biomass of the other (except birch) plants. For all the above-mentioned groups, the content of the elements N, C, S, Ca, K, Mg, Na, P, Mn, Cu, Fe, Zn, Pb, and Cd was determined. This allowed us to obtain both the values of the concentrations of particular substancesand their allocation in both the organic matter and litterfall. The aim of theresearch was to discover whether the allocation of elements changes with the age of birch growing on former farmland.

3

Role of farmland afforestation in the development of rural areas in Poland

86%

Polna M.

Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu

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2016

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tom 18

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nr 1

This paper seeks to determine the role of farmland afforestation in the development of rural areas in Poland. An analysis covered the distribution of afforestation conducted in the years 2003-2013 in terms of afforestations needs of rural communes. The assessment relied on the ranking of communes worked out by the Forest Research Institute for the purposes of the National Woodiness Enhancement Programme (NWEP). It was found that, in spite of the NWEP, farmland afforestation did not proceed in a spatially ordered way. The research showed that there is no straightforward relation between the level of afforestation needs of rural communes and spatial differences in farmland afforestation.

4

Farmland afforestations: new goals and guidelines for Poland

86%

Zajaczkowski J., Zajaczkowski K.

Folia Forestalia Polonica. Series A . Forestry

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2009

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tom 51

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nr 1

Farmland afforestations (FAs), i. e. groups of trees and shrubs scattered in agricultural landscape, were for long considered mostly as supplementary timber resource and wind mitigation tool. The contemporary shift to other, environment- and social-related functions of FAs is discussed in the paper and example guidelines for the establishment of new FAs proposed. The concept of “farmland afforestations’ needs” is presented as a tool to incorporate FA issues in land- use planning.

5

The structure of road's afforestation

86%

Rylke J., Fortuna-Antoszkiewicz B.

Annals of Warsaw Agricultural University. Horticulture

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2000

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tom 21

6

Plant regeneration via somatic embryogenesis in Pinus kesiya [Royle ex.Gord.] influenced by triacontanol

86%

Malabadi R. B., Mulgund G. S., Nataraja K.

Acta Physiologiae Plantarum

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2005

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tom 27

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nr 4A

Embryogenic cultures were initiated and established for the first time in 3 different genotypes of Pinus kesiya using mature zygotic embryos and triacontanol. Mature zygotic embryos produced white-mucilaginous embryogenic callus when cultured on half strength MSG (Becwar et al. 1990) basal medium supplemented with 90 mM maltose, 2.0 ·g l⁻¹ Gellan gum, 9.0 μM 2, 4-D and 10 μg·1⁻¹triacontanol. On subculture of such embryogenic callus on the maintenance medium (II) containing 2.0 μM 2,4-D and 2.0 μg ·l⁻¹ triacontanol induced cleavage polyembryogenesis with proembryos. The percentage of somatic embryogenesis was not similar in all the three genotypes. The highest percentage of somatic embryogenesis (88.5 %) was recorded in PK04 genotype. Somatic embryos were successfully germinated on half strength MSG basal medium without growth regulators. Somatic seedlings showed fast growth and a survival rate of 95 %. This work for the first time reveals that triacontanol can be used as an effective growth regulator for inducing somatic embryogenesis in conifers.

7

Uwarunkowania zalesiania nieefektywnej przestrzeni produkcji rolniczej w aspekcie alternatywnych zrodel dochodu

72%

Pawlewicz K., Pawlewicz A., Gotkiewicz W.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2007

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tom 521

281-291

8

Oribatid mites (Acari, Oribatida) of pine regenerations and afforestations in Bocianowo Forest District near Bydgoszcz

72%

Chachaj B., Graczyk R., Brylinski D.

Zeszyty Naukowe. Acta Biologica. Uniwersytet Szczeciński

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2010

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tom 17

9

The use of hydrogel in afforestation of postindustrial areas

72%

Ptach W., Boczon A., Wrobel M.

Journal of Water and Land Development

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2009

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nr 13b

10

Successional traits of ectomycorrhizal fungi in forest reclamation after surface mining and agricultural disturbances: A review

72%

Kalucka I. L., Jagodzinski A. M.

Dendrobiology

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2016

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tom 76

Ectomycorrhizal (ECM) fungi and their symbiotic associations with forest trees are among major drivers of key ecosystem functions such as carbon and nitrogen cycling, plant nutrient and water uptake from soil, plant-plant facilitation/competition and diversity regulation via common mycorrhizal networks. Through their functional traits and interactions with both abiotic and biotic environment, they also significantly affect the process of open land colonization by trees as well as vegetation succession coupled with soil and ecosystem development. Here we review the role of ECM fungi in the early primary and secondary succession following major anthropogenic disturbances. Based on the examples of mine spoils and post-agricultural lands, we demonstrate key ecosystem services provided by ECM fungi in the processes of forest restoration. We point out ecological mechanisms and adaptations which underpin ECM fungal community successional interactions, particularly life histories, dispersal, spatial structure, host preferences, and sensitivity to environmental filters. We emphasize the need of better understanding the role of ECM fungi in the forest restoration practice as it seems crucial for afforestation success and biodiversity rehabilitation. Thus, ectomycorrhizal traits should be a prime consideration in afforestation and carbon sequestration polices, sustainable forest management and biodiversity conservation practices.

11

Past and contemporary changes in forest cover and forest continuity in relation to soils (Southern Latvia)

72%

Fescenko A., Nikodemus O., Brumelis G.

Polish Journal of Ecology

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2014

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tom 62

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nr 4

A set of medium-scale historical maps was used to reconstruct changes in spatial patterns of forest area during the last 220 years in an agricultural matrix of north-eastern Europe (Zemgale region, Latvia). Changes in total forest area by soils were determined, as well as the time period of continuous forest cover. Proportion of protected area for each soil trophic group was also calculated. Patterns of recent forest development differed between soil trophic groups. Afforestation occurred mainly on wet and poor soils in the 19th and 20th centuries, while the proportion of woodland area on fertile soils typical for nemoral forests was fairly stable. Only 1% of the fertile soil area has been covered by continuous forest for more than 220 years, and only 11% of them are protected. Nemoral deciduous forests cover only 15% of their potential natural vegetation area of forested eutrophic soils. Therefore, in regard to habitat protection that is representative of natural distribution of ecosystems, priority in conservation should be given to forests on fertile soils.

12

Zalesianie gruntow rolnych

72%

Kraczek J.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2004

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nr 11

2-3

13

The variability of biometric parameters in the second year of cultivation of Scots pine on the post arable ground

72%

Zyromski A., Biniak-Pierog M., Rolbiecki S., Rolbiecki R.

Infrastruktura i Ekologia Terenów Wiejskich

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2015

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nr III/2

14

Uwarunkowania regionalne zalesiania i zadrzewiania gruntow rolniczych

72%

Talalaj Z.

Biuletyn Informacyjny IUNG

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2001

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tom 16

7-10

15

Large-scale changes of the forestation in river channel below the dams in Southern African rivers: assessment using the Google Earth Images

72%

Uddin F. M. J., Asaeda T., Rashid M. H.

Polish Journal of Ecology

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2014

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tom 62

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nr 4

According to the results of many studies construction of dams, their decommissioning, and sediment flushing from the reservoir have been associated with vegetation dynamics. However, factors governing the spatial changes of forestation in the floodplain below the dams have not been explored extensively. This study examined the interacting effects of dam, inflow and land-use patterns of catchment areas and other factors on downstream vegetation patterns along the downstream reaches of Southern African Rivers. A total of 105 segments of 15 rivers (16 dams) located in seven Southern African countries were studied. Areas of herbaceous and forest vegetation of river channels below a dam and land-use catchment area patterns were obtained by the Google area calculator and aerial image analysis. Forest development was the highest just below the dams, and the ratio of forest cover decreased with distance from the dam toward the river mouth. Forest coverage ratio was found to decrease with an increase in dyke distance, number as well as of inflows (r = −0.66, P <0.01) and water coverage ratio, and bare land in the river flood plain. However, a principal component analysis (PCA) showed that the proportion of bare land in the catchment area, the dyke distance of the river and the number of inflows or tributaries are the factors most associated with forestation among the studied parameters. Forestation progressively decreased following the entrance of free following tributaries below dams, which appeared to reduce the effects produced by dams on vegetation forestation by causing local deviation. The impact of different land use types, such as agriculture on forestation, was insignificant though in some cases, land use areas cause the forest area reduction.

16

Sailing tourism and the condition of flora at the banks of Beldany lake

72%

Madrzejowska K., Borowski J.

Annals of Warsaw Agricultural University. Horticulture (Landscape Architecture)

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2003

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tom 24

17

Zalesiania ruszyly

72%

Kraczek J.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2005

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nr 03

3

18

Diversity of flora in the undergrowth of park afforestations, rural plantings and oak-hornbeam forests

72%

Fornal-Pieniak B., Ollik M.

Folia Forestalia Polonica. Series A . Forestry

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2013

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tom 55

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nr 3

The process of forest fragmentation has been observed in many countries, where plant species had adapt to different habitats, such as for example manor parks and rural plantings. A number of scientists have studied the parks as sites where waning environments and landscapes find their shelter. In 2011–2012, research was undertaken on diversity of vegetation in afforestations of parks, rural plantings and oak-hornbeam forests in Sandomierz Basin. In order to compare the means obtained univariate analysis of variance (one-way ANOVA) was used with juxtaposing divided by each of the two criteria: size (the small, and large parks) and conservation(cultivated parks and nonclutivated parks). Tukey’s test was used to examine the significance of differences between respective groups. Analyses were with STATISTICA 9.1. software. Plants classified as forest species, grassland species and those of synanthropic communities were observed in all the afforestations. The parks with high wooded and not mowed areas and oak-hornbeam forests were more forest-like than other types of afforestations studied.

19

Biomass dynamics in young silver birch stands on post-agricultural lands in Central Poland

72%

Zasada M., Bijak S., Bronisz K., Bronisz A., Gaweda T.

Drewno. Prace Naukowe. Doniesienia. Komunikaty

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2014

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tom 57

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nr 192

The paper analyses the production and allocation of biomass in young, spontaneoussilver birch afforestation occurring on post-agricultural lands in the Mazowszeregion (central Poland). We investigated 114 sample plots of age varying from 1 to 19 years. During the first 15 years after their establishment on abandoned farmland, the naturally regenerated silver birch stands produced on average approximately 75 tons of dry biomass per hectare. The major (50–70%) part of this biomass was stored in the tree stems and this share increased with age. The fractions of biomass in the foliage and roots decreased over time, while the share of biomass in the branches remained rather constant. The significant age-dependency of the allometric relationships suggested the need to use age-sensitive biomass expansion factors to estimate the biomass from the stem volume.

20

Pine forests of Zn-Pb post-mining areas of Southern Poland

72%

Grodzinska K., Szarek-Lukaszewska G., Godzik B.

Polish Botanical Journal

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2010

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tom 55

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nr 1

229-237

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