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Consumers’ willingness to pay for agricultural landscape improvements in Lithuania: estimation framework
2017
Novikova, A., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania) | Vaznonis, B., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania)
Agriculture not only supplies food and fibre to the society, but also provides other services, which are not revealed in the market prices. The role of agricultural activities is essential in forming and improving the landscape, in particular, for Lithuanian case study. Therefore, the paper focuses on development of the framework for estimation of consumers’ willingness to pay for agricultural landscape improvements. The objectives of this paper are to present construction of the estimation framework for eliciting willingness to pay (WTP) for non- market agricultural landscape goods through choice experiments (CE) in Lithuania; then, to show the results of framework pre-test, and identify applicability of the framework designed. CE is a survey-based method implying creation of repetitive choice situations about alternatives of agri-environmental schemes for revealing how inhabitants of Lithuania value public goods from agricultural landscape (scenic views, variety of flora and fauna species, recreational infrastructure and services, the objects of cultural heritage), enabling to estimate Lithuanian residents’ WTP and the demand for improvements of agricultural landscape. The results of the pilot survey have shown that the questionnaire was comprehensible and interesting to the respondents, revealing that the valuation of agricultural landscape is in demand by the society. The results of modelling, applying conditional logit, have shown a good model fit, allowing the usage of the estimation framework for the main survey and an estimation of consumers’ willingness to pay for public goods/improvements from agricultural landscape.
显示更多 [+] 显示较少 [-]Impact of the factors of the social capital of Zemgale region on the development [Latvia]
2017
Jankova, L., Latvia Univ. of Agriculture, Jelgava (Latvia) | Grizane, T., Turiba Univ., Riga (Latvia) | Jurgelane, I., Riga Technical Univ. (Latvia)
In the regions of Latvia there still exists a large unused resource – social capital (SC). Ineffectively implemented development policies, population’s alienation from the state democratic institutions, a low level of non-governmental engagement and SC, lack of resources in the local government sector, increased emigration, civic cynicism, low conditions of the prestige of the political profession have facilitated the development differences among territories. The research goal: comparison of the social capital of Zemgale region, towns and districts. Monographic analysis and method of synthesis, data statistical research methods – grouping, comparison, the processing and interpretation of statistical data – the method for analysing aggregate indicators, was used in the article. The research discovers the SC at the micro-level – the collaboration and attitudes between citizens and the state as well as in-between the individuals themselves, along with the macro-level – interaction of social groups as a part of a network which helps create trust to local government bodies as well as the state. The study indicates that the development of the Zemgale region is impacted not only by such social capital factors as the population density in the districts (0.37), the number of population until the working age (0.55), but also by the factor education level of the deputies (2009-2013) between the districts (0.12), towns (0.41), and the whole region (0.14). This verified the assumption that higher education level implies higher social potential and more active social inclusion. The authors suggest the local-governments to devote increased funding to the NGOs as it is the most active form of social capital, thus ensuring a long-term development of such initiative groups.
显示更多 [+] 显示较少 [-]Non-bank consumer crediting trends in Latvia
2017
Mazure, G., Latvia Univ. of Agriculture, Jelgava (Latvia)
Non-bank crediting has become popular in Latvia as well as in other European countries due to various economic and social factors. Since the banks in recent years have introduced much stricter lending conditions, non-bank crediting sector has experienced a significant increase not only in Latvia but also in other European and world countries. Non-bank crediting market actively began to develop through a wide promotion of consumer credits in the major mass media; thus, creating human interest in the availability of fast and easy processable credits. Non-bank credit companies without customer deposits have transformed the present credit market, since a number of new players entered the market testing new business and crediting models and providing solutions to credit-challenged customers. The research aim is to study the non-bank consumer crediting trends in Latvia and it employs a monographic descriptive method as well as the methods of analysis and synthesis and graphics. The research results demonstrate that the popularity of non-bank credits is still growing among consumers, since the total amounts of non-bank credits disbursed for the first time have increased by EUR 116.61 million or 33.18% for the period 2012-2015 with distance credits being the most demanded credit type accounting for approximately 40% of all non-bank credits. Non-bank credit market is saturated and there is a fierce competition between non-bank crediting companies in terms of interest rates, crediting conditions and other factors.
显示更多 [+] 显示较少 [-]Describing non-industrial private forest ownership in Estonia: a qualitative approach
2017
Pollumaee, P., Estonian Univ. of Life Sciences, Tartu (Estonia) | Sepp, K., Estonian Univ. of Life Sciences, Tartu (Estonia)
Private forestry and forest owners in Estonia have become more profound research subjects in the last decade. One of the most common research topics has been the identification of private forest owners’ (PFO) values and objectives. However, much of the existing studies rely on quantitative data which usually describes more active owners and owners whose forest property is larger than the average. Thus, the aim of the present study is to identify the management objectives and motives of non-industrial private forest owners using a qualitative approach – something that has been rarely used in forest owners’ research in Estonia. Eight forest owner interviews form the dataset, which is analysed in order to identify PFO forestry objectives and forest use. The results of our qualitative content analysis show, in principle, similar generalized forest owner types of motivations. However, the qualitative approach opens up these generalized types even more. Income motive goes beyond just continuous financial returns and means in many cases a sense of security. Forest ownership is closely linked with “home” interpretations. We conclude that qualitative methods in small-scale forestry research provide new insights to forest ownership and its meanings to private forest owners.
显示更多 [+] 显示较少 [-]Soil carbon stock changes in transitional mire drained for forestry in Latvia: a case study
2017
Lupikis, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Lazdins, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia)
The aim of the study is to evaluate the impact of drainage on soil carbon stock in a transitional mire drained for forestry. The study site is located in the central part of Latvia representing hemiboreal vegetation zone. Site was drained in 1960. It is located in a catchment area of the river Veseta. An undrained site at the same catchment area was chosen for control (ca. 2.5 km between sites). In both sites, the depth of peat is 4 – 4.5 m. Drained site is dominated by coniferous trees. Soil samples collected in 2014 were used to determine bulk density and carbon content, and to calculate soil carbon stock. Samples were collected down to 80 cm depth. Ground surface elevation was measured before and several times after the drainage to determine peat subsidence. Carbon stock has increased by 0.3 tons haE-1 yr**1 after drainage, although peat has subsided on average by 26 cm (13 – 48 cm). Subsidence was mainly caused by physical shrinkage of peat not by organic matter oxidation. Drainage was followed by compaction of aerated soil layer, which has caused most of the subsidence, especially during the first years after drainage. Soil bulk density has increased almost twice at soil surface layer 0 – 10 cm (from 75 kg m**3 to 141 kg m**3). Differences decrease at deeper sampling depths. It is concluded that drainage is not always followed by reduction of carbon stock in soil. Increased above and below ground litter production rates may offset accelerated decomposition of organic matter after drainage.
显示更多 [+] 显示较少 [-]Intra-seasonal development of radial increment of Picea abies in Latvia
2017
Dzenis, J., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Krisans, O., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Katrevics, J., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Adamovics, Andis, Latvian State Forest Research Inst. Silava, Salaspils (Latvia)
Norway spruce (Picea abies (L.) H.Karst.) is amongst the most important tree species for forestry in Latvia. It has been suggested that due to the foreseen climate change the productivity of Norway spruce in Latvia may decrease. Continuous observations of radial increment allow to identify periods with different growth intensity and to study the effect of environmental conditions on radial increment during them. The aim of this study was to analyse stem radial variation of Norway spruce in mixed-species stand in response to meteorological conditions over one growing season. Stem radial variation of one Norway spruce tree was monitored by band dendrometer throughout the growing season of 2013. Cumulative radial increment was divided into contraction, recovery and increment phases by the stem cycle approach. Four periods with distinct apportionment of these phases were identified – winter/spring dormancy, spring/ summer growth, growth termination and autumn hydration fluctuations. Radial increment began in the second part of May and the most active increment was observed during period of spring/summer growth. This period lasted for 42 days with the mean amplitude of stem radial variations reaching 0.06 mm while the length of increment phase reached up to two days. Throughout the growing season increment was facilitated by an increase in the temperature. Meanwhile, the effect of precipitation was insignificant, presumably due to sufficient water availability and low interspecies competition for it, characteristic in mixed species stands due to differences in depth and distribution of root systems between the species.
显示更多 [+] 显示较少 [-]Evaluation of productivity and impact on soil of tracked ProSilva F2/2 forwarder in forest thinning
2017
Rozitis, G., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Zimelis, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Lazdins, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia)
Tracked forwarders is one of the solutions for the forest soils with poor bearing capacity providing ability to use well-known technology for reasonable cost to improve accessibility of forest resources. Tracked forwarders are not common in forest nowadays and only a few models are produced serially. The ProSilva F2/2 is a new middle-class forwarder, whose frontal tracks are replaced with big tires, ensuring large contact surface, increased mobility of the machine and significantly reduced mass without loosing the load capacity (15 tonnes). The aim of the study was to evaluate productivity, soil impact and cost of the roundwood forwarding using the ProSilva F2/2. The study was conducted in Finland. Productivity (time per crane cycle, split into operations and loads), load size, depth of ruts and soil compaction were estimated during the study. According to the study results, the average productivity is 16 m**3 per hour (driving distance to a landing site 200 m, driving speed 2.8 km hE-1, average load 9.7 m**3). The productivity can be significantly increased by more efficient utilization of the load capacity and by using gripper with the tilt function. The length of ruts on peat soil (56 m haE-1) does not exceed the permitted threshold values in Latvia. The compaction of soil took place mainly in topsoil, no changes in soil density were observed in deeper soil layers. The prime cost of forwarding according to the preliminary estimates is 2.5 € mE-3 if the annual production is at least 62000 m**3. Utilization rate is important to keep forwarding cost low.
显示更多 [+] 显示较少 [-]Comparison of productivity of Vimek harvester in birch plantation and young coniferous stands
2017
Zimelis, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Lazdins, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Spalva, G., Latvia Univ. of Agriculture, Jelgava (Latvia)
The aim of the study was to compare the productivity and logging costs using the small class harvester Vimek 404 T5 in thinning of birch plantations and young coniferous stands. It was found in the study that due to a lower fuel consumption, maintenance costs and initial investment, the cost of a working hour of the harvester Vimek 404 T5 is significantly smaller than the cost of a working hour of the middle class harvester. The study confirmed that Vimek 404 T5 is a suitable harvester for thinning in a birch plantation; the study also confirmed the previous conclusions about the main advantages of Vimek harvester compared to a middle class harvester in the first thinning – low fuel consumption and costs of maintenance, high productivity and equipment compactness, which allow to reduce the strip road area. The average productivity for Vimek 404 T5 in birch plantation was 6.2 m**3 per productive hour, but in young conifer stand the productivity was 4.9 m**3 per productive hour. The average stem volume in the birch plantation was 0.06 m**3, but in conifer stand 0.05 m**3. Productivity for the same dimension trees in the birch plantation is not significantly different from the data obtained in the thinning of the coniferous stands.
显示更多 [+] 显示较少 [-]Quality changes during summer – autumn long term storage of birch (Betula pendula) roundwood
2017
Magaznieks, J., Latvia Univ. of Agriculture, Jelgava (Latvia) | Millers, M., Latvia Univ. of Agriculture, Jelgava (Latvia) | Gžibovska, Z., Latvia Univ. of Agriculture, Jelgava (Latvia)
The homogeneous and light wood of birch is suitable for different types of treatment processes and is highly valued for products where visual aspect is important, however, birch assortments are highly susceptible to damages caused by fungi during the storage. Such fungal damages cause discoloration of birch roundwood intended for further woodworking. Sapwood discoloration development and its influencing factors for birch roundwood were analyzed in the summer - autumn period of the year 2016 (August, September and October). Control cut for assessment of sapwood discoloration development was made in four birch roundwood stacks in the districts of Auce and Daugavpils. In order to evaluate the influence of harvesting type, side surface damages, placement in pile, storage duration, diameter, distance from the end plane, daily average temperatures, precipitation amount and relative humidity on development of sapwood discoloration, 616 discs from birch log end planes were prepared. After conducting multiple factor linear regression, it was concluded that a significant development of discoloration and its changes for birch roundwood are promoted by harvesting type, placement in pile, distance from the end plane, daily average temperatures and relative humidity (R2 = 0.450). For birch logs that are prepared by harvester with the daily average air temperature + 6 °C, the first signs of discoloration appear after 17 – 18 days, but on all logs stacked in pile they appear after 68 – 69 days. Whereas, with the daily average temperature of + 18 °C, the first signs of discoloration can occur after only six days, but on all logs stacked in pile they appear after 23 days.
显示更多 [+] 显示较少 [-]GIS based analysis of forest site preparation
2017
Ivanovs, J., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Sietina, I., Latvian State Forest Research Inst. Silava, Salaspils (Latvia)
The aim of this study is to improve the practice of mechanical forest site preparation (FSP) by identifying typical characteristics of FSP, including the direction of FSP machinery, manoeuvre count depending on configuration of parcel and forest type and width of manoeuvre track; to evaluate the productivity depending on different forest growing conditions; to create schemes of technological corridors for commercial thinning; to improve scheme of FSP according to the scheme of technical corridors for commercial thinning and to evaluate changes in the count of manoeuvres and total distance travelled. In this study, we have developed methods to evaluate the quality of FSP. Methods used in this study include GIS analysis of vector data from FSP machinery tracking devices and LiDAR (Light detecting and ranging) data analysis for terrain information. Study shows that there is a significant difference in productivity when the machinery of FSP is driving in different angles to the longitudinal axis of parcel. Reduced productivity is justified by prioritizing topography of the forest floor. Slope is a decisive factor in the ground water movement and should be considered in FSP planning. Study shows that the developed method could be implemented in practice of forest management in 41% of sampled forest stands.
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