| Jilin is a main agricultural province in China, in which the crops straw especially corn straw has large production quantity and wide distribution. However, the straw is relative surplus and the comprehensive utilization is bad developed. Straw burned and discarded in field is a common situation, which caused serious waste of the resource and air pollution. So the further study on industrial development pattern of straw comprehensive utilization, as well as the determination of key direction and the progress of Industry, can bear long-term strategic significance and enormous practical effect in decreasing the environmental pollution, increasing the economic benefit and cultivating new points of economic growth.Based on the research approach of the consulting document, questionnaire survey, spot investigation, enterprises forum and case analysis, in main grain production area of central Jilin, the thesis mainly discussed the straw comprehensive utilization industry and major problems, then constructed the main models of straw comprehensive utilization industrialization in Jilin province, meanwhile analyzed the implementation effects in six typical cases, finally proposed the policies and suggestions to promote the development of the straw comprehensive utilization industry. The result outlines are followed:1. The use of straw resources has great potential in Jilin province, the total quantity about 3950 million tons and 10.9 ton per hectare by 2013, which had the highest level of China. The straw utilization ratio and amount was 75.2% and 2970 million tons respectively, but the ratio was lower than the national average by 1.9 percentage points. Through the analysis on 62 enterprises, the straw was utilized for bar-formed fuel(57.1%),combustion generation(17.5%), organic fertilizer(7.9%), feed(6.3%), plate(3.2%), biogas(3.2%), snow-melting agent of environmental protection type(1.6%), edible fungi base material(1.6%) and papermaking(1.6%) mainly. The industry development of straw comprehensive utilization still existted some problems, not formed the pattern of large industrialization and long-term mechanism of social consensus yet.2. The paper designed the agriculturalization,raw change and energy regeneration models for corn straw comprehensive utilization industry, according to the principles of recycling, local conditions, highlighting the emphasis and overall urban and rural. And we determined the straw—papermaking—fertilizer/feed model, straw—chemical products—fertilizer model and straw—biological gas—fertilizer model mainly, meanwhile, the straw—formed fuel model should be adequate supplemented.3.Six typical cases models have each excellences, among which the straw—papermaking—fertilizer/feed model and the straw—formed fuel model are models with great prospect. We discuss the concrete manifestation from some aspects listed below: the straw—papermaking—fertilizer/feed model has good economic and social benefit, large straw utilization, long industry chain, but large investment, high technology, big environmental impact and extension difficult; while the straw—formed fuel model are relative to that.4. At last, the paper put forward some countermeasures. We should strengthen the supervision and management. The formulation of support policy should be clarified. Then we should standardize the development in this industry. Technology support should be perfected to develop and extend applicable technique and equipment. The system of straw storage and transportation should be also established as soon as possible. At the same time, we should develope some project constructions and increase the broadcasting and extension. |
PDF Full Text Request