种养结合型循环农业模式的能物价流的比较研究
发布时间：2019-06-25 18:49
【摘要】：种养结合是目前最常见的循环农业模式,本研究采用实地调研和实验相结合的方法,以苏南地区太仓市城厢镇东林村东林合作农场为研究对象,收集了2013～2014年度该农场的全部生产经营方面的数据,并将它们折算成相应的能量流、物质流和价值流来进行统一的分析。重点对3种循环农业生产系统——秸秆全量还田系统、种养结合等量有机肥输入系统、种养结合足量有机肥输入系统,以秸秆不还田系统为对照,进行比较研究了这4种系统模式的能量流、物质流和价值流及关系。以期为苏南平原地区种养结合循环农业提供数据和理论方面的参考依据。本研究得出以下几点结论：1.秸秆不还田系统(模式1)能量输入水平为6051.99MJ/亩,其中生物辅助能占5.196%,工业辅助能占94.804%,能量输出水平为24378.74MJ/亩,其中经济产量占52.113%,产投比为4.028,循环指数为0.052。N、P、K的产投比分别为0.407、0.644、0.683,价值产投比为2.33。2.秸秆全量还田系统(模式2)能量输入水平为18398.92MJ/亩,其中生物辅助能占68.816%,工业辅助能占31.184%。能量输出水平为25511.62MJ/亩,其中经济输出为51.883%,产投比为1.387,循环指数为0.688。N、P、K产投比分别为0.384、0.57、0.502,价值产投比为2.39。3.种养结合有机肥等量输入系统(模式3)能量输入水平为9277.57MJ/亩,其中生物辅助能占38.157%,工业辅助能占61.843%,能量输出水平为15160.39MJ/亩,其中经济产量占93.030%。产投比为1.634,循环指数为0.382。N、P、K产投比分别为0.473、0.651、0.317,价值产投比为2.97。4.种养结合有机肥足量输入系统(模式4)能量输入水平为14608.13MJ/亩,其中生物辅助能占60.724%,工业辅助能占39.276%,总能量输出16007.58MJ/亩,其中经济产量占100%。产投比为1.096,循环指数为0.607。N、P、K产投比分别为0.462、0.687、0.276,价值产投比为2.56。综上,通过四种模式间能量流、物质流、价值流的对比,从价值流的分析结果来看,模式3具有较高的经济效益。从能量流、物质流的分析结果来看,模式4的生态效益最佳。结合苏南地区的具体情况,未来应该重点向生态效益方向发展,即应当增加有机物在辅助能中所占的比重,实现物质在循环系统中的多级利用,使该地区的生态效益和经济效益都得到保障。
[Abstract]:Planting and cultivation combination is the most common circular agriculture model at present. This study adopts the method of field investigation and experiment, takes Donglin Village Donglin Cooperative Farm in Chengfang Town, Taicang City, southern Jiangsu as the research object, collects all the production and management data of the farm in 2013 / 2014, and converts them into the corresponding energy flow, material flow and value flow to carry on the unified analysis. The energy flow, material flow and value flow of these four system models were compared and studied in three kinds of circular agricultural production systems, namely, straw total returning system, planting and raising combined with equal amount of organic fertilizer input system, planting and breeding combined with enough organic fertilizer input system, and taking straw non-returning system as control, the energy flow, material flow and value flow of these four system models were compared and studied. In order to provide data and theoretical reference for planting and cultivation combined with circular agriculture in southern Jiangsu plain. This study draws the following conclusions: 1. The energy input level of straw non-return system (mode 1) was 6051.99MJ/ mu, in which the bioassistant energy accounted for 5.196%, the industrial auxiliary energy accounted for 94.804%, and the energy output level was 24378.74MJ/ mu, in which the economic yield accounted for 52.113%, the ratio of output to input was 4.028, the cycle index was 0.052.N, the ratio of output to input of K was 0.407, 0.644, 0.683, and the ratio of value to input was 2.33.2. The energy input level of straw returning system (mode 2) was 18398.92MJ/ mu, in which biological auxiliary energy accounted for 68.816%, industrial auxiliary energy accounted for 31.184%. The energy output level is 25511.62MJ/ mu, in which the economic output is 51.883%, the output / input ratio is 1.387, the cycle index is 0.688.N, the K output / input ratio is 0.384, 0.57, 0.502, and the value / input ratio is 2.39.3. The energy input level of the equal input system of planting and raising organic fertilizer (mode 3) was 9277.57MJ/ mu, in which the biological auxiliary energy accounted for 38.157%, the industrial auxiliary energy accounted for 61.843%, and the energy output level was 15160.39MJ/ mu, in which the economic yield accounted for 93.030%. The ratio of output to input is 1.634, the cycle index is 0.382.N, the ratio of output to input of K is 0.473, 0.651, 0.317, and the ratio of value to input is 2.97.4. The energy input level of the sufficient input system of planting and raising organic fertilizer (mode 4) was 14608.13MJ/ mu, in which the biological auxiliary energy accounted for 60.724%, the industrial auxiliary energy accounted for 39.276%, and the total energy output 16007.58MJ/ mu, in which the economic yield accounted for 100%. The ratio of output to input is 1.096, the cycle index is 0.607.N, the ratio of output to input of K is 0.462, 0.687, 0.276, and the ratio of value to input is 2.56. In summary, through the comparison of energy flow, material flow and value flow among the four models, from the analysis results of value flow, mode 3 has higher economic benefits. From the analysis results of energy flow and material flow, the ecological benefit of mode 4 is the best. Combined with the specific situation of southern Jiangsu Province, we should focus on the development of ecological benefits in the future, that is, we should increase the proportion of organic matter in auxiliary energy, realize the multi-stage utilization of substances in the circulation system, so that the ecological and economic benefits of this area should be guaranteed.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F323.22;F259.2
本文编号：2505918
[Abstract]:Planting and cultivation combination is the most common circular agriculture model at present. This study adopts the method of field investigation and experiment, takes Donglin Village Donglin Cooperative Farm in Chengfang Town, Taicang City, southern Jiangsu as the research object, collects all the production and management data of the farm in 2013 / 2014, and converts them into the corresponding energy flow, material flow and value flow to carry on the unified analysis. The energy flow, material flow and value flow of these four system models were compared and studied in three kinds of circular agricultural production systems, namely, straw total returning system, planting and raising combined with equal amount of organic fertilizer input system, planting and breeding combined with enough organic fertilizer input system, and taking straw non-returning system as control, the energy flow, material flow and value flow of these four system models were compared and studied. In order to provide data and theoretical reference for planting and cultivation combined with circular agriculture in southern Jiangsu plain. This study draws the following conclusions: 1. The energy input level of straw non-return system (mode 1) was 6051.99MJ/ mu, in which the bioassistant energy accounted for 5.196%, the industrial auxiliary energy accounted for 94.804%, and the energy output level was 24378.74MJ/ mu, in which the economic yield accounted for 52.113%, the ratio of output to input was 4.028, the cycle index was 0.052.N, the ratio of output to input of K was 0.407, 0.644, 0.683, and the ratio of value to input was 2.33.2. The energy input level of straw returning system (mode 2) was 18398.92MJ/ mu, in which biological auxiliary energy accounted for 68.816%, industrial auxiliary energy accounted for 31.184%. The energy output level is 25511.62MJ/ mu, in which the economic output is 51.883%, the output / input ratio is 1.387, the cycle index is 0.688.N, the K output / input ratio is 0.384, 0.57, 0.502, and the value / input ratio is 2.39.3. The energy input level of the equal input system of planting and raising organic fertilizer (mode 3) was 9277.57MJ/ mu, in which the biological auxiliary energy accounted for 38.157%, the industrial auxiliary energy accounted for 61.843%, and the energy output level was 15160.39MJ/ mu, in which the economic yield accounted for 93.030%. The ratio of output to input is 1.634, the cycle index is 0.382.N, the ratio of output to input of K is 0.473, 0.651, 0.317, and the ratio of value to input is 2.97.4. The energy input level of the sufficient input system of planting and raising organic fertilizer (mode 4) was 14608.13MJ/ mu, in which the biological auxiliary energy accounted for 60.724%, the industrial auxiliary energy accounted for 39.276%, and the total energy output 16007.58MJ/ mu, in which the economic yield accounted for 100%. The ratio of output to input is 1.096, the cycle index is 0.607.N, the ratio of output to input of K is 0.462, 0.687, 0.276, and the ratio of value to input is 2.56. In summary, through the comparison of energy flow, material flow and value flow among the four models, from the analysis results of value flow, mode 3 has higher economic benefits. From the analysis results of energy flow and material flow, the ecological benefit of mode 4 is the best. Combined with the specific situation of southern Jiangsu Province, we should focus on the development of ecological benefits in the future, that is, we should increase the proportion of organic matter in auxiliary energy, realize the multi-stage utilization of substances in the circulation system, so that the ecological and economic benefits of this area should be guaranteed.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F323.22;F259.2
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