The semantic segmentation of high-resolution remote sensing images (HRRSIs) is a basic task for remote sensing image processing and has a wide range of applications. However, the abundant texture ...information and wide imaging range of HRRSIs lead to the complex distribution of ground objects and unclear boundaries, which bring huge challenges to the segmentation of HRRSIs. To solve this problem, in this paper we propose an improved squeeze and excitation residual network (SERNet), which integrates several squeeze and excitation residual modules (SERMs) and a refine attention module (RAM). The SERM can recalibrate feature responses adaptively by modeling the long-range dependencies in the channel and spatial dimensions, which enables effective information to be transmitted between the shallow and deep layers. The RAM pays attention to global features that are beneficial to segmentation results. Furthermore, the ISPRS datasets were processed to focus on the segmentation of vegetation categories and introduce Digital Surface Model (DSM) images to learn and integrate features to improve the segmentation accuracy of surface vegetation, which has certain prospects in the field of forestry applications. We conduct a set of comparative experiments on ISPRS Vaihingen and Potsdam datasets. The results verify the superior performance of the proposed SERNet.
The forestry industry is a low-carbon green industry with great potential for development, but its current development model is facing multiple dilemmas that urgently require a shift to high-quality ...forestry development. Neoclassical theory and endogenous growth theory consider technology innovation as the foundation of economic growth. In order to explore the impact of forestry technology innovation (FTI) on the economic growth of forestry industry, this paper uses the entropy method, spatial Durbin model, and threshold model to explore the spatial effect of forestry technology innovation on forestry industry economy for analysis and exploration of the non-linear relationship between the two, and the panel data from 31 provinces in China from 2002 to 2020 are used as the sample for empirical study. Results show that: (1) Forestry technology innovation has a significant role in promoting the economic growth of the forestry industry and has obvious spatial spillover effects, which also promotes the economic growth of forestry in neighboring regions. (2) There is a threshold effect of forestry technology innovation on the economic growth of the forestry industry. When the forestry technology innovation exceeds its optimal interval, its effect on the economic growth of forestry industry shows diminishing marginal benefits. (3) Forestry technology innovation has industrial heterogeneity on the economic growth of the forestry industry. Therefore, managers should take advantage of the growth effect of forestry technology innovation in the forestry industry at the level of sustainability, and further make full use of the spatial effect resulting from the flow of technology to establish a system of communication and learning to form a virtuous coordination of the forestry economic environment for the high-quality development of the forestry industry.
RESUMO Com a falta de tecnologia no setor florestal, alternativas são necessárias para favorecer a maximização do uso da madeira amazônica, principalmente àquelas que possuem características ...desfavoráveis para o seu processamento. Assim, o objetivo da pesquisa foi desenvolver o projeto de um produto com o design planejado, confeccionando-o e verificando as etapas de processamento para atestar o aumento do rendimento volumétrico e a diminuição dos resíduos de madeiras proveniente de árvores ocas. Com isso, foi projetado um móvel, utilizando softwares para modelar as alternativas de geometria e encaixe para uma mesa de jantar com seis lugares, com estrutura e formas diferenciada. Foram utilizados cerca de 0,1799 m³ de madeira da espécie de Muiracatiara para a confecção da mesa, possuindo acabamento fino e técnicas de marchetaria no tampo, com madeira de Marupá. A volumetria final do produto foi igual a 0,5420 m³, sendo o rendimento volumétrico de 30,13% considerado alto, para a quantidade de madeira utilizada no processo. Com o restante, cerca de 69,87% de resíduo madeireiro da produção da mesa, foi possível realizar a confecção de uma luminária, a partir de peças descartadas durante a usinagem da madeira. O estudo permitiu a demonstração da aplicabilidade do design no setor madeireiro a partir do planejamento do uso da matéria prima, onde foi possível verificar a viabilidade do procedimento utilizando madeira amazônica para a confecção de itens domésticos, independente do estado de qualidade, tornando a atividade sustentável ao setor.
ABSTRACT With the lack of technology in the forest sector, alternatives are necessary to favor the maximization of the use of Amazonian wood, especially to those that have unfavorable characteristics for its processing. Thus, the objective of the research was to develop the design of a product with the planned design, making it and verifying the processing steps to attest the increase of the volumetric yield and the reduction of wood residues from hollow trees. With this, furniture was designed, using software to model the geometry and fitting alternatives for a six-seat dining table, with different structure and shapes. About 0.1799 m³ of Muiracatiara wood was were used to make the table, with marquetry technique on top, with Marupá wood. The final volume of the product was 0.5420 m³, and the volume yield was 30.13% considered high, for the quantity of wood used in the process. With the remainder, about 69.87% of lumber residue from table production, it was possible to make a luminaire, from discarded pieces during the wood machining. The study allowed the demonstration of the applicability of the design in the wood sector from the planning of the use of the raw material, where it was possible to verify the feasibility of the procedure using amazonic wood for the making of household items, regardless of state of quality, making the activity sustainable to the sector.
In recent years, the concept of "clear waters and green mountains are as good as mountains of gold and silver" has been deeply rooted in the hearts of the people, however, China is still a country ...with little forest and fragile ecology. This paper expounds the present situation of environmental protection in China, analyzes the main problems and deficiencies in afforestation, puts forward the function of afforestation construction, and makes strategic thinking on environmental protection and afforestation work.
This case study is one of six evaluations of the implementation of the World Bank's 1991 Forest Strategy. This and the other cases (Cameroon, China, Costa Rica, India, and Indonesia) complement a ...review of the entire set of lending and nonlending activities of the World Bank Group and the Global Environment Facility. The World Bank has clearly diminished its lending presence in the Amazon in the past decade. It has moved from the "big projects" era of the 1960s through the 1980s and strong economic and sector work to a more careful approach at the end of the century with attempts once again to focus on strategic issues and smaller projects, including pilot activities. This seems due both to the poor performance of earlier projects-which prompted a more risk-adverse Bank strategy following the intense international scrutiny and criticism contributing to the cautious approach urged by the 1991 Forest Strategy-and to a lack of demand in Brazil for Bank funds. Brazil's macroeconomic difficulties-its balance of payments and fiscal deficits-have led the government to be selective as well as to shift lending to quick-disbursing activities. This is evident in the most recent land reform programs. Controlling deforestation is not easy given the large number and level of national and global forces and actors affecting it. If the Bank is to be a facilitator for balancing the needs of stakeholders (i.e., the poor and the indigenous people) and national and global interests, it must be seen as an objective bystander. The 1991 Forest Strategy emphasizes the primacy of the rights of the indigenous people-and by implication their rights have primacy over those of the local poor. But the Bank cannot be a facilitator unless it is viewed by both parties as not serving the interests of only one party.
Tharandt, Technische Universität Dresden, Diss., 2013
Tharandt, Dresden University of Technology, Diss., 2013
Tharandt, Technische Universität Dresden, Diss., 2013
Agro-forestry (AFR) technologies are perceived to improve livelihoods and natural resource sustainability of the rural households. Despite their aggressive promotion by multiple national and ...international agencies, the adoption of AFR technologies has been minimal in Kenya. This study conducted a survey to examine the socio-economic factors that affect the adoption process in Nyando, Kenya. Results revealed that farmers with bigger farms and higher education were more likely to adopt the new technology. Additionally, farmers were quicker to adopt technology if they had an increase in crop yields and had stayed longer in the study area. Generally, wealthier famers tended to adopt more AFR technology than those with less income. Access to information was the only factor strongly correlated with the rest of the independent variables. The results suggest that, adoption would be more enhanced with a clear focus on extension activities, income enhancing AFR practices and soil amelioration technologies. This study may be replicated in other parts of Kenya and East Africa to improve the level of AFR technology adoption for sustainable rural development.
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