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The Development Path and Strategy of Low-carbonated Logistics ------Based on Principal Component Analysis ZHANG Yinghua, DUAN Xiangyun Business school, Tianjin University of Finance&Economics, Tianjin, China, 300222 Abstract: Based on the study of influence factors of low-carbonated Logistics, the principal component influence factors were abstracted by using Principal Component Analysis. This paper studies not only the development path of low-carbonated Logistics specific to the principal component influence factors, but also the strategy of low-carbonated Logistics on the basis of the development path. The development path includes raising energy efficiency, improving energy structure, advancing the level of development of domestic Logistics as well as exerting the potential of carbon sink. Keywords: Principal Component Analysis, low-carbonated, development path 1. Introduction At Climate Conference in Copenhagen, a commitment to decline carbon dioxide emissions per unit of GDP had been made by China and since then low carbon concept wildly spread in our social and economic development. Domestic research on low-carbon is briefly on the aspects of introducing low-carbonated experience abroad and discussing approaches and potentials of low-carbon economy at home. However, researches on low carbon logistics have been few done. It is well known that Logistics is the second-largest oil consuming industry in China, high oil consumption and emissions makes it being the main object in the activity of energy saving and emission reduction inevitably. Therefore, establishment of low- carbon Logistics is imminent at present. Under the precondition of revitalizing development of logistics industry in China, how to reduce carbon emissions with the maximum possible has become an important research topic for today. Based on the study of influence factors of low-carbonated Logistics, the principal component influence factors were abstracted by using Principal Component Analysis. This paper studies not only the development path of low-carbonated Logistics specific to principal component influence factors, but also the strategy of low-carbonated Logistics on the basis of the development path. 2. Analysis of Principal Component Influence Factors in Low-carbonated Logistics According to the cause of carbon pollutants and characteristics of carbon itself, the paper argues that the influence factors of low-carbonated Logistics are: logistics energy structure, logistics development level, logistics energy efficiency, logistics infrastructure, logistics development speed, demanding growth of an expanding economic scale, the progress of science and technology and carbon sink ability, etc. The following index can stand for the influence factors:X1 Proportion of fuel energy consumption to logistics energy consumption,X2 Per unit of logistics value-added energy consumption,X3 Ratio of logistics cost to GDP,X4 Forest area,X5 Forest coverage,X6 Logistics fixed investments,X7 Length of transport route,X8 Ratio of logistics service demand per unit of GDP,X9 Year-on-year logistics value-added growth,X10 Proportion of R&D funds to GDP. Specific index value is regulated and calculated according to annual of “China Statistical Yearbook”, “China Logistics Yearbook”, and “Circular of National Logistics Runnability” promulgated by the National Development and Reform Commission, the State Statistics Bureau, China Federation of Logistics &Purchasing. Analyzed the index data from 2004-2008, gave the availability of the above influenced factors, and then SPSS15.0 is adopted to make the Principle Component Analysis: 192 2.1 Variance analysis of common factors Figure 1 shows that common factor variances are all extracted above 95%, that is to say, 95% of the original variables are extracted by the principle component. Initial X1 X2 X3 X4 X5 1 1 1 1 1 Figure1 Communalities Extraction 0.99 X6 0.953 X7 0.965 X8 0.994 X9 0.994 X10 Initial 1 1 1 1 1 Extraction 0.991 0.992 0.996 0.95 0.999 、 、 2.2 Total variance analysis Figure 2 shows that the characteristic roots of the first three factors are 6.398 2.124 1.302 (all more than 1), 63.975% 21.243% and 13.023% of original total variances are explained and their sum accounts for 98.242% (more than 85% as regulated) . The two aspects proved that three principal components can be extracted for analysis. 、 Component 1 2 3 4 5 6 Figure 2 Total Variance Explained Initial Eigenvalues Extraction Sums of Squared Loadings Total % of Variance Cumulative % Total % of Variance Cumulative % 6.398 63.975 63.975 6.398 63.975 63.975 2.124 21.243 85.218 2.124 21.243 85.218 1.302 13.023 98.242 1.302 13.023 98.242 0.176 1.758 100 4.67E-16 4.67E-15 100 2.10E-16 2.10E-15 100 、 、 、 2.3 Principal Component Analysis Figure 3 shows that the coefficient of correlation between X1 X3 X6 X7 and the first principal component seems high; the degree of correlation between X2 and the second principal component appears high as well as the relationship betweenX4 X5 and the third component is close. That is, the first principal component mainly includes: X1 Proportion of logistics fuel energy consumption to logistics energy consumption, X3 Ratio of logistics cost to GDP, X6 Logistics fixed investments,X7 Length of transport route. They are the influences of energy structure on low- carbonated Logistics. The second principal component embraces X2 Per unit of logistics value-added energy consumption. It is the influence of energy consumption and efficiency on low- carbonated Logistics. And the third principal component includes X4 Forest area and X5 Forest coverage. They are the influences of carbon sink ability on low- carbonated Logistics. We can conclude that energy structure, energy efficiency and carbon sink ability can be considered as the main influence factors on our low- carbonated Logistics. 、 Figure 3 Component Matrixes (a) 1 X1 X2 X3 0.99 -0.553 -0.8 Component 2 -0.099 0.77 0.571 3 1 0.021 X6 0.233 X7 -8.51E-05 X8 193 Component 2 0.993 0.071 0.935 -0.339 0.686 0.519 3 0.002 0.045 0.506 X4 X5 3. 0.718 0.718 0.38 0.38 -0.579 X9 -0.579 X10 0.788 0.7 -0.2 0.691 0.537 0.176 The Development Path of Low-carbonated Logistics Based on Principal Component Analysis, we can find that the development of our low-carbonated logistics should not only concentrate on the intensional aspects, but also emphasize the extensional issues. Low-carbonated Logistics coordinated with the two development paths was listed as follows: Firstly, improve energy efficiency to realize low consumption. Energy consumption positively correlated with economic growth and logistics expansion. From 2004 to 2008, energy consumption raised from 15,104 to 22,088 tons of standard coal, which hit 46.24%, with an average annual growth rate 9.25%. Compared with 13.86%, an average annual growth rate of logistics value, energy consumption growth rate is 4.61% slightly lower than production value growth rate. Probing into the root of this high energy consumption, modes of transportation and nodes of logistics appear to be the main causes. At present, the basic logistics method mainly trusts in automotive road transportation, while, from energy-saving perspective, long-distance highway transportation is not economic and environmental----Highway is flexible in the transportation of high added-value goods, passengers and cargo traffic, as for the bulk supply tariff and bulk freight, the advantage of waterway is remarkable and the airway seems more suitable for long-distance transportation of passengers between cities. Meanwhile, logistics nodes such as station, port, storage and park installed in lack of rationalization has resulted in the existing unreasonable phenomenon—repeated, tangled and invalid transportation. In order to realize low carbonization and promote low- carbonated economy, logistics energy efficiency is badly to improve. Secondly, improve energy structure to realize low emission. Matching with the mode of transportation, our logistics industry mainly consumes fuel oil. In recent five years, as logistics oil share about 60% of the energy consumption and the high-polluting energy as diesel and gasoline accounts for 50% of the whole national consumption, high greenhouse gases emission and atmospheric pollution become inevitable. To improve logistics energy structure, establishment of low carbon energy system, innovation and development of renewable energy technology, energy conservation and emission reduction technology are all badly needed. For the energy diversification and cleaning, transformation of the achievements of low carbon research to the realistic productive forces should be accelerated. Because all of these rely on scientific and technological strength, we must increase the input of scientific research and give impetus to R&D of the clean and renewable energy such as nuclear power, hydraulic, wind, solar, high efficiency transportation and elimination even substitution of GHW energy. Thirdly, improve development level to realize low pollution. It is imperative to reduce carbon pollution and promote construction of logistics informationization and standardization, which directly influences the level of logistics development. As a result of a relative low level, logistics enterprises are incapable of attending at carbon pollution. Compared with the developed countries, logistics industry in our country started later and its growth mode is still in the extensive stage of high input and high consumption. Currently, due to the deficiency of logistics standardization system, logistics network nodes, facilities and use of apparatus are all affected. Problems have been shown up: incompatibility of the transportation equipment standard influenced the development of our comprehensive transportation; unmatched logistics facilities and instruments affected the level of automation and mechanization in the process of transportation, storage and handling; gap existed between logistics package standard and logistics facilities impacted the loading rate of transportation, loading factor of equipment and space utilization of storage, meanwhile, because of the limitation of size and strength of logistics enterprises, performance network and information network can not be established, let alone global logistics network. Caused by the lagging status of logistics network and informationization construction, the service content and facility of logistics enterprises are too simple to carry out the logistics value-added services, such as comprehensive logistics information service, order management, inventory management, logistics cost control, logistics and supply chain management, solutions design, which are all built on the 194 basis of management software. Fourthly, exert potential of carbon sink. If the above three aspects of low carbonization belong to the intensional type of development path, exertion of carbon ability is of an extensional one. Having the incomparable advantages, forest carbon sink can absorb and reduce carbon dioxide at a really low cost. Taking the advantage of the forest in carbon reduction has become a consensus among the international societies---inventory results of the seventh national forest resources reports that our forest area totals 19545.22 million hectares and forest coverage rate reaches up to20.36%. Chinese Academy of Forestry, according to the inventory results and forest ecological location monitoring results, evaluates and concludes that annual atmospheric pollutants in forest ecosystem absorption can be 0.32 million tons and total carbon storage of forest vegetation amounts to 78.11 tons. Yearly worth of only 6 ecological services have reached 10.01 trillion yuan, roughly equivalent to one third of our current annual GDP . With the improvement of forest quantity and quality, cultivation of carbon sink forest, enhanced resources protection management and rational utilization of the forest ecosystem, overall carbon sequestration ability will be further strengthened. Forest carbon sink is going to play a more and more important role in the realization of our low- carbonated Logistics and low-carbonated Economy. 4. Measures to Realize Low-carbonated Logistics From the analysis of low-carbonated logistics path, we can find that direct reduced-carbon strategy, including economic and environmental mode of transportation, support of efficient logistics network and perfect information technology to reduce the energy consumption and improve the efficiency, constitute only one part of the realization of low-carbonated Logistics. Indirect LC measures, for example, the role of forest carbon sink, can also be utilized. Here, some low carbon measures can be adopted: Establish comprehensive transportation system and play the advantage of multimodal transport to reduce energy consumption. Compared with the single mode of transportation, comprehensive transportation system with transport capacity of higher efficiency can be regarded as a safe, economical, efficient and environmental system which is interlaced by an organic correlation of highway, railway, waterway, aviation and so on. By dividing the responsibilities among different modes of transportation, benefits can be acquired. It meets the transport demand effectively as well as realizes the most reasonable utilization of resources. For the establishment of a comprehensive transportation system and in order to take the advantage of intermodal transportation, an overall planning and optimization of resources are needed to be carried out and a layout of transportation network should be improved. Meanwhile, to realize the "seamless docking" of railway, port, airport and highway, effective cohesion of different modes of transportation ought to be strengthened. Improve logistics informationization to promote energy conservation and emission reduction. Degree of logistic informationization has affected the process of low-carbonated Logistics at present, so it needs logistics enterprises widely apply modern information technology and adopt barcode label, smart tags, intelligent identification system, logistics management information system and logistics information routing system to optimize the logistic management. Higher degree of logistic informatization will enhance actual load rate of storage facilities, optimize transportation route and so on .We can say that an all-round improvement of logistics management efficiency would brought about energy conservation and emission reduction in logistics industry inevitably. Promote construction of logistics standardization to reduce carbon pollution. Only with the normal market order and under the guidance of logistic management and technical standard, it is possible to improve the operational efficiency of logistics enterprises. Logistics standardization has become an important approach for the realization of modern logistics management; a significant means to ensure quality of products; an effective measure to improve the logistics efficiency and a pass to look abroad. Relative lagging standardization of our logistics has influenced the logistics operation efficiency and increased the discharge of pollutants. If logistic enterprises want to increase operation efficiency and reduce carbon pollution, construction of logistics standardization must be carried forward. Luckily, with 195 the joint effort of our government, industry association, logistics enterprises and related enterprises and on the basis of reference and adoption of advanced foreign logistics standards, logistics standardization system is gradually formed, first within the supply chains and industry, then on a national scale, and even expanding to the whole world in future. Strength technology capacity and push forward R&D of clean energy to reduce carbon emission. As logistics industry suffers dual restriction from both energy and environment, it becomes urgent to develop environmental-sound energy, energy conservation technology and optimize energy structure. At present, as the development of clean energy and environmental protection being a new growth point, besides more input of R&D to low carbon energy, our government and logistics enterprises should make great effort to strengthen technology exchanges and cooperation between different countries, establish long- acting energy cooperation mechanism, make full use of resources at home and abroad, optimize energy structure and promote clean production and cyclic utilization. Exert the guidance, accommodation and supervision of government to realize the operation of a virtuous carbon cycle. The government, through the publicity guidance, could intensify the sense of responsibilities of society and enterprises, encourage and support all walks of life to participate in the activity “carbon offset and elimination of carbon footprint”, advocate enterprises to donate funds to afforestation project voluntarily, raise funding level of afforestation project to promote basic construction of carbon sink, strengthen forest management, prevent the declination of carbon sink from disforestation and forest decay and enhance carbon storage, yet, it could levy carbon tax which can be dedicated to forest carbon sink project from the logistics enterprise of high carbon emission. 5. Conclusion The establishment of low- carbon Logistics not only concentrates on the intensional aspects, but also the extensional issues. To improve the energy efficiency, energy structure, development level and to exert potential of carbon sink are the development path of our low-carbonated logistics. Accordingly, there are direct reduced-carbon strategy and indirect reduced-carbon measure to realize low-carbonated Logistics. Direct reduced-carbon strategy includes establishing the comprehensive transportation system to play the advantage of multimodal transport, improving the logistics informationization, promoting the construction of logistics standardization and pushing forward the R&D of clean energy. Besides, exerting the guidance, accommodation and supervision of government to enhance the capacity of carbon sink is the indirect reduced-carbon measure. References [1]. Lester•R•Brown. PAO yong-ning, LIN zi-xin. Module B: Saving the Earth to Continue Civilization [M].Beijing: Dongfang Press,2003:215-254 (in Chinese) [2]. LIU xi-liang. Low- Carbon Economy and Human Development [N]. Guangming Daily, 2009-4-21(10) (in Chinese) [3]. BAO jiang-qiang, MIAO yang, CHEN feng. Low- Carbon Economy: A New Revolution of Economic Development Mode [J]. 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