Abstract: This paper constructs a mathematical modelby borrowing the biological logistic model, to describe and analyze the relationshipbetween forest fruits industry and cold chain logistics. ForestThe result proves fruits industry can not develop without the cold chainlogistics, and if the cold chain logistics enterprises hope to expand marketshare and improve economic benefits, they also need to develop forest fruitbusiness. Sothere is a symbiotic synergistic effect between the forest fruits industry andthe cold chain logistics enterprises.

Key words: forest fruits industry, Cold ChainLogistics, synergism, symbiosis 

1. Introduction

1.1 the brief introduction of the forestfruits industry

There is no clear definition of the forestfruits industry in China.It is included within the scope of the forest products in China’s statisticswhile it is included within the scope of agricultural products in statisticsabroad. Forest fruit products are mainlydivided into fresh fruits and dried fruits. The fresh fruits include apple,orange, pear, grape, peach, apricot, litchi, longan, kiwi fruit, etc; and thefried fruits include chestnut, dried walnut, dried jujube, persimmon, ginkgo,almonds, pecans, hazelnut, cashew nuts, pistachios, etc. Chinaas a bigcountry for forest fruits production, the forest fruits industry plays animportant role in its national economy. According to the import forest productsstatistics of 2008, the imports of edible fruits and nuts is 1.433 billiondollars increasing  by 10% compared withthe corresponding period last year, and accounts for 5.3% in the total forestimports, which increasing by 0.7% compared with the corresponding period lastyear. While the exports is 5.225 billion dollars with an increase of 27.2% comparedwith the corresponding period last year, and the proportion it accounts for inthe total exports rose to 12.1% from last year's 14.5%.

The characteristics of the forest fruitsindustry (esp. fresh fruits):

(1) Freshness. Different from other merchandise, the picked fresh forestfruits are still living organisms. With the stop of photosynthesis, the respirationbecomes the main metabolism of the picked forest fruits. And evaporation isalso a main feature. The moisture content of most forest fruits is about 90%,but the weight of forest fruits always decreases by evaporation during theprocess of storage and transportation, which will reduce the freshness offorest fruits.