Abstract: This article studied the shortage of forestresources, the nature of woods, wood waste recycling, the wood used in ourcountry and the development of reverse logistics. This paper analyzed how tomeet the need for reverse logistics network. According to the development of China's woodwaste, reverse logistics and reverse logistics processes, building a reverselogistics network, establishing a third-party reverse logistics enterprises toparticipate in the case of waste wood to create the reverse logistics networkmixed integer programming model are necessary. This paper utilized Lingosoftware optimize the reverse logistics network optimization model for thesite, got the optimal cost of solving the result for the government andenterprises to build reverse logistics network analysis and supportdecision-making.

Key words: deserted wood; reverse logistics network; optimization

1 The significance and current situation of deserted wood recycling

1.1 Introduction

China is poor in forest resource, the averagecoverage of forest for each person only equals to   22% of the global average, ranked 134 in the world; the average forest stock onlyequals to 14.6% of the global average, ranked 122^[1] in the world. With22% of the world population, our forest reserves only account for 3.2% of the globalforest^[2]reservation. Chinese per capita wood consumption is 0.12 m³, whereas the per capita woodconsumption of developed countries is 1.16 m³, if calculated in accordance withthe current level of developed countries, Chinese annual demand of wood will be1.5 billion m^3[3]. With economic society developing, theper capita consumption also increases, the totals will increase to 130 million m^3[4]as long as the national percapita consumption of wood increases 0.1 m³. China's major timber and woodproducts consumption converted into log volume has reached 325.7 millionm³in 2005. During the tenth Five-Year plan, theaverage annual consumption of forest volume is 550 million m³, while the domestic supply is only 370million m3, the gap is nearly 200 million m^3[5]. Industry experts predict that China's timber demandwill reach 210 million m³ in2010, while the existing forest resourcescan only supply 150 million m3, the gap between supply and demand is 60 millionm3 ^[6]. Growing demand for wood materials and severely dearth ofwood resources will result in the high gap between supply and demand of Chinesetimber resources.

1.2 The significance and value of wood recycling

As the renewable and recycled materials ofthe world’s four major timber materials (steel, cement, wood, plastic), woodplays an irreplaceable even more and more important role in the people'slivelihood^[7]. It is most convenient to recycling wood garbage forthe properties of bulky, light weight, clean, easy sorting and transport. If areasonable and efficient recycling measurement is carried, the serious shortageof resources and the high gap between supply and demand to some extent can relieve.If centralizing the construction waste wood, old furniture, old flooring, oldpackaging, old sleepers, the old poles, disposable chopsticks and the peasantsfor their own use of all waste material of wood and woodwork, Chinese annual woodwaste reaches at least more than 85 million m³, which equivalents toChina's annual merchantable timber yield, and shows that has a great potential torecycle timber resources^[8]. The current rate of multipurpose utilizationis only 63% in China,so a large number of the second timber resources have not been effectively used,resulting in a great waste of resources^[9]. If the merchantable timberyield is 100 million m³, 1 million m³supply can be increasedby increasing 1% of the utilization rate only. If 85 million m³of desertedwood generated every year can be recycled effectively, calculated by that 3 m³deserted wood can be changedto 1 m³wood-basedpanels, more than 2800 million m³Wood-based^[10]panelscan be produced. So a reasonable and efficient wood recycling can relieve thehigh gap between supply and demand of wood resources to a certain extent.