Forest harvesting

Ebook "Optimal thinning within the faustmann approach" introduction of mutual interdependencies between the trees growing in a stand and the opportunity to harvest trees prior to the rotation age, optimal thinning regimes can be derived and analyzed. The implications of the proposed model are thoroughly discussed against the background of practical forest management decisions. The author closes with adaptations to the problems of the management of mixed, multiple-use and uneven-aged stands and entire forests.

253p manmanthanhla0201 26-02-2024 3 1   Download

Ebook "Harvesting operations in the tropics (Tropical forestry series)" is bring together information on harvest methods, system productivity, and methods for conducting safe, efficient, and environmentally acceptable operations in tropical forests. It highlights the challenges of harvest operations in the tropics, includes techniques that have been shown to be successful, and discusses newer technologies.

177p tachieuhoa 28-01-2024 2 2   Download

The use of wood as an industrial raw material has led to development of plantation forestry, in which trees are planted, managed, and harvested as crops. The productivity of such plantations often exceeds that of lessintensively-managed forests, and land managers have the option of choosing specific planting stock to produce specific types of wood for industrial use.

11p vinarcissa 21-03-2023 1 1   Download

Siberian stone pine (Pinus sibirica Du Tour) is a cone-bearing species with outstanding nutritious seeds, health-supporting properties, and nut oil. Currently, the main volume of pine nuts is harvested in natural forests, which causes damage to ecosystems. The best solution to this problem would be harvesting nuts on special pine nut plantations established on the basis of high-seeding clones. However, it is hampered by the low efficiency of the existing methods for assessing plus-tree productivity.

13p lyhuyenthu 31-01-2023 2 2   Download

The main findings included: (1) Total time for one process from harvesting to planting new forest was nearly 30 days. Both factors of vegetation and soil properties changed during four stages; (2) The infiltration rate of all locations in all stages followed the trend of decreasing after harvesting, burning, and recovering after planting new forest.

12p vilamborghini 12-10-2022 5 3   Download

The flowers (not used medicinally) are yellow. Aloes are indigenous to South Africa and South America, but are now cultivated worldwide except in tundra, deserts and rain forests.

5p cothumenhmong11 11-05-2021 12 2   Download

This paper elucidates the significance of tree harvesting at maturity for better management of the forest resources over the natural death of tree provided the wood is used in such a way that carbon can be blocked in it for longer duration.

6p trinhthamhodang1218 26-02-2021 13 2   Download

Jhum or shifting cultivation, which is widespread in the North East India and some parts of Orissa, Jharkhand and Andhra Pradesh, is a primitive practice of cultivation. It involves clearing vegetative/forest cover on land/slopes of hills, drying and burning it before onset of monsoon and cropping on it thereafter. After harvesting is over, the land is left fallow and vegetation regeneration is allowed on it till the plot becomes reusable for the purpose of cultivation in a cycle.

7p caygaocaolon8 07-11-2020 4 1   Download

Mango is one of the most important fruit crop of India due to its massive diversity in its flavour, aroma, taste and fruit form. Western Ghats region of Karnataka is having huge diversity of aromatic pickle mango called appemidi. The appemidi mango is used for pickling purpose because of its unique character like flavor, taste and good keeping quality. Number of appemidi trees is decreasing due unhealthy harvesting, de-forestation and hydroelectric projects. Exploratory survey was carried out in Western Ghats region of Belagavito conserve the genotypes.

5p chauchaungayxua4 18-03-2020 9 1   Download

Mid Western Development Region (MWDR), a part of Nepali Himalayas, the globally significant and biologically diverse ecosystems, is remarkably rich in medicinal and aromatic plants, and other non-timber forest products (NTFPs). Government recorded data shows that about 700 species of herbal shrubs and NTFPs are found in the region and they are very important natural resources for human beings and for environmental balance. However, these vital and life supporting plants are in threats from deforestation, degradation, overuse and misuse.

10p angicungduoc1 02-12-2019 23 1   Download

The conversion of inefficient agricultural and forest land to rice - shrimp farming model in the Mekong Delta in general and Ca Mau province in particular has brought remark benefits in terms of economic development. However, the introduction of salt water into some freshwater regions have created environmental problems, which is not only impact on shrimp farming but also on many other agricultural ecosystems.

8p nguathienthan1 27-11-2019 20 1   Download

In this paper, the process of developing alternative wood harvesting strategies in forest management planning is presented. Alternative wood harvesting strategies based on linear programming (LP) include a planning horizon of 100 years, an objective of the maximization of net present value (NPV) and various constraints such as classical volume control (even flow) and wood assortments.

13p aquaman27 15-01-2019 26 1   Download

Trailers are used to carry logs having specific dimensions for logging extraction operations, secondary transportation, and agricultural activities. The main objective of this study was the design of a timber trailer capable of manual loading operations and suitable for rough terrain conditions to be used in combination with a farm tractor in the western Black Sea region of Turkey.

13p vimb123 11-01-2019 24 3   Download

Recently, new models of operational harvester heads that are suitable for work in deciduous forests and are able to process hooked trees or trees originated from stump shots have been designed.

10p vimb123 12-01-2019 18 3   Download

In contexts in which mechanized harvesting is limited, such as in the northwestern Black Sea region of Turkey, it is important to improve timber harvesting productivity while preserving operators’ safety and reducing environmental damage. This study aims to introduce a methodology in which the harvesting process is simulated with discrete-event simulation (DES) software in order to identify bottlenecks.

10p danhdanh11 11-01-2019 18 1   Download

This report provides a summary of some of the existing knowledge and literature related to the production of woody biomass from bioenergy with a particular focus on the economic perspective. The most commonly discussed woody biomass feedstocks are described along with results of existing economic modeling studies related to the provision of biomass from short rotation woody crops, harvest residues, and hazardous fuel reduction efforts. Additionally, the existing social science literature is used to highlight some challenges to widespread production of biomass energy.

56p loixinloi 08-05-2013 62 10   Download

Far over the eastern half of Europe extends a vast and mighty plain, spreading thousands of miles to the north and south, to the east and west, in the north a land of forests, in the south and east a region of treeless levels. Here stretches the Black Land, whose deep dark soil is fit for endless harvests; here are the arable steppes, a vast fertile prairie land, and here again the barren steppes, fit only for wandering herds and the tents of nomad shepherds. Across this great plain, in all directions, flow myriads of meandering streams, many of them swelling into noble rivers, whose...

125p nhokheo9 06-05-2013 51 3   Download

The importance of sustainable management of non-market forest goods and services has increased during the last few years. This is also reflected in a number of policy documents within the EU. The new EU Rural Development Regulation speaks about the “non-productive investments", as investments to enhance the public amenity value of forests. The stakeholder consultation process within the EU Forestry Strategy and the report of the strategy’s implementation identify the issue of creating markets for currently non-market forest goods and services as an emerging issue.

75p dangsuynghi 15-03-2013 55 8   Download

while to Le Caron was assigned a more distant field, but one that promised a rich harvest. Six or seven hundred miles from Quebec, in the region of Lake Simcoe and the Georgian Bay, dwelt the Hurons, a sedentary people living in villages and practising a rude agriculture. In these respects they differed from the Algonquin tribes of the St Lawrence, who had no fixed abodes and depended on forest and stream for a living. The Hurons, too, were bound to the French by both war and trade. Champlain had assisted them and the Algonquins in battle against the common...

75p anhnangmuahe2013 15-03-2013 43 2   Download

Moreover, many areas of sustainable development remain technically ambiguous, making it difficult to plan an effective course of action. For example, the forestry industry has had difficulty defining what constitutes sustainable forest management. Some critics believe that simply replacing trees is not enough, because harvesting destroys the biodiversity of the forest. Clearly, more research will be needed to resolve such technical issues. From a broader perspective, however, it is clearly in the interest of business to operate within a healthy environment and economy.

9p mebachano 01-02-2013 50 2   Download