Study On The Optimization Of Ecological Agricultural Sturcture And The Design Of Ecological Agricultural Model In ZaoZhuangregion

The ecological agriculture is a new thing that has appeared in the course of agriculture development, It has get the intensive attention of each country of the world Once it was put forward, and China also has carried on extensive research and practice to it. In the duration of agriculture development, it ignored the ecological benefit owing to excessively seeking the economic benefit in Zaozhuang region, and leading to different destruction of ecological environment that supporting the agriculture system. In order to promote the sustainable development of rural economy, the ecological agriculture need to be developed very much in Zaozhuang region. This article studied the development of ecological agriculture in future in Zaozhuang region, and the major contents are as follows:1. ecological agriculture regionalization and evaluationThe agriculture system is a system that compound by ecology-economy-society three systems, which possess of dissipation structure, the agricultural regionalization is need for the agriculture development because it must be taken measures suited to local conditions. Firstly, the principle of ecological agriculture regionalization is established; Secondly, indicator systems of agricultural regionalization is set up, which includes nature condition indicator system, ecology condition indicator system , society & economy condition indicator system and population condition indicator system. Hierarchical cluster analysis is used for indicator numerical value by SPSS software. Based on the result of hierarchical cluster analysis, the Zaozhuang region can be divided into three regions.Finally, the three ecological agriculture construction area is evaluated by AHP method and the comprehensive index method.2. Study on the optimization method of ecological agriculture structureFirstly, this article adopts the resemble coefficient of regional industrial structure and entropy value model of industrial structure system for evaluating the present agricultural structure. Secondly, it adopts the gray system model and the system dynamics model for ecological agricultural structure optimize research. The gray incidence degree can analyze the correlation of each factor of the agricultural structure, we can find out the important factors according to the analysis. Based on the system dynamics principle, I build optimize model of the plantation by applying STELLA5. 1.1 software. The model includes 3 stocks, 3 flows and 11 converters, and with the control variable of 320kg grain that possessed by each person. Under the circumstances of compressing crops sown area in proportion every year, it is imitated for the total income of plantation , the income of each person , the grain of each person possessed every year. The south & middle ecological agricultureregion is defined in the proportion of 1.5% every year to reduce crops sown area; The northwest ecological agriculture region is defined in the proportion of 0.2% every year; The northeast ecological agriculture region has no space to adjust the crops sown area for the more population and few land. The proportion of eating grain livestock and poultry should be reduced in the course of animal husbandry development in Zaozhaung region, and the proportion of eating grass livestock should be increase step by step, so we can accelerate the speed of agriculture development and gain more economic benefit and ecological benefit.3. build of the ecological agricultural modelsReasonable ecological agricultural models is built according to the local condition. "Chinese jujube and populus- farming- eat grass livestock - marsh gas- industry of agricultural product" model should be build in the south & middle ecological agriculture region; " farming-vegetable- eat grass livestock -marsh gas- industry of agricultural product" model should be build in northwest ecological agriculture region; "farming-woods and fruit trees- eat grass livestock" comprehensive manage model and courtyard ecological agriculture model should be build in northeast ecological agriculture r...