YANG Zhi-ping.Dynamic Analysis on Agri-ecological System of Yancheng City Based on Emergy Theory[J].Research of Soil and Water Conservation,2013,20(06):311-315,332.
基于能值理论的盐城市农业生态系统动态分析
- Title:
- Dynamic Analysis on Agri-ecological System of Yancheng City Based on Emergy Theory
- Keywords:
- agro-ecosystem; emergy theory; dynamic analysis; Yancheng City
- 分类号:
- F323.22;X171
- 摘要:
- 农业生态系统是人类生存的最基本系统，对其结构和功能进行分析是解决农业生态环境问题的关键。应用能值分析理论与方法，对盐城市1995—2010年的农业生态系统能值结构进行了动态分析，采用净能值产出率、能值投入率、环境承载力、能值密度、人均能值用量及可持续性指数对该地区的能值结构进行了详细研究。结果表明：系统能值总投入呈上升趋势，在能值投入中，风能资源投入逐渐增加，但总体比重不高，劳力能值投入受乡镇企业发展和进城务工因素影响逐年下降，以劳力和畜力等有机辅助能为主的传统农业正逐渐被以农机、化肥等工业辅助能为主的现代农业所替代。系统能值总产出呈上升趋势，农业产业结构由以种植业、畜牧业为主向高附加值的畜牧业、水产业的多样化方向转化。系统能值可持续发展指标为0.97，是典型的消费型生态系统，产出的能值是消耗较多的资源获得。系统对于环境的压力较大，可持续性较低，应进一步调整农业产业结构，依靠科学技术，大力发展绿色和生态农业，保护环境资源，实现盐城城市农业生态系统的可持续发展。
- Abstract:
- Agro-ecosystem is the most basic system for human beings survival, while the analysis on the structure and function of the system is the key to solve the problems of agro-ecological environment. Based on the theories and methodologies of emergy, the emergy structure in agro-ecosystem about Yancheng City from 1995 to 2010 was studied. Some indicators of emergy were selected such as emergy input ratio, net emergy yield ratio, emergy environmental carrying capacity, emergy density, emergy per capita, emergy sustainable indices were assessed. The results showed that the agro-ecosystem gross input values of research area displayed the increasing trend. The wind resource input values added gradually but with low ratio. Because of the development of towns’ industrial and young rural people working in cities, the manpower resource input values decreased gradually. The agro-ecosystem gross input values of research area also showed the increasing trend. Traditional agriculture which is composed mainly by organic emergy such as manpower and livestock is being substituted for modern agriculture gradually, which is composed mainly by agricultural machinery, chemical fertilizer and industrial assistant emergy. Diversity of agriculture mode is also increasing with higher additional-value aquaculture industry. The sustainable development index of system emergy was 0.97, the system was a typical consumption-based ecological system, output emergy was obtained by consuming more resources. The system has a low sustainability and creates a large pressure on environment. It is necessary to adjust agricultural structure, adopt science and technology, develop environmental-friendly and ecological agriculture and obtain the object to keep sustainable development.
参考文献/References:
[1] Odum H T. Environmental Accounting:Emergy and Environmental Decision Making[M]. New York:John Wiley & Sons,1996.
[2] Campbell D E. Emergy analysis of human carrying capacity and regional sustainability:an example using the state of Maine[J]. Environmental Monitoring and Assessment,1998,51(1/2):531-569.
[3] Odum H T. Emergy evaluation of an OTEC electrical power system[J]. Energy,2000,25(4):389-393.
[4] Odum H T, Brown M T, Williams S B. Handbook of Emergy Evaluation[M]. Univ. Florida,2000.
[5] 蓝盛芳,钦佩.生态系统的能值分析[J].应用生态学报,2001,12(1):129-131.
[6] 陆宏芳,蓝盛芳,李谋召,等.农业生态系统的能值分析方法研究[J].韶关大学学报,2000,21(4):73-78.
[7] Lan S F, Odum H T, Liu X M. Energy flow and emergy analysis of the agro-ecosystem of China[J]. Ecological Science,1998,17(1):32-39.
[8] Ulgiati S, BrownM T. Monitoring patterns of sustainability in natural and man made eco-systems[J]. Ecological Modeling,1998,108(1/3):23-36.
[9] 严茂超,李海涛,程鸿,等.中国农林牧渔业主要产品的能值分析与评估[J].中国林业大学学报,2001,23(6):65-69.
[10] 蓝盛芳.生态经济系统的能值分析[M].北京:化学工业出版社,2002.
[11] 李双成,傅小峰,郑度.中国经济持续发展的能值分析[J].自然资源学报,2001,16(4):294-304.
[12] 黄书礼.都市生态经济与能量[M].中国台北:詹氏书局,2004.
[13] 赵欣胜,崔保山,杨志峰.红树林湿地生态效益能值分析:以南沙地区十九涌红树林湿地为案例[J].生态学杂志,2005,24(7):841-844.
[14] 王亮.基于生态足迹的盐城市生态安全评价[J].国土与自然资源研究,2011(1):59-61.
[15] 陈阜.农业生态学教程[M].北京:气象出版社,2004.
[16] 农业技术经济手册编委会.农业技术经济手册[M].北京:农业出版社,1983.
[17] 张芳,周忠学.基于能值分析的延安市农业生态系统动态评估[J].干旱地区农业研究,2010,28(4):251-258.
[18] 宋豫秦,王群超.基于能值生态足迹的浙江省可持续发展分析[J].长江流域资源与环境,2011,22(11):285-290.
[19] 高红梅,曹志宏,郝晋珉.天津市农业生态经济系统能值分析[J].生态经济,2010(10):65-69.
[20] 刘继展,李萍萍.江苏农业生态系统能值分析[J].农业系统科学与综合研究,2005,21(1):29-36.
[21] 苏国麟,李谋召,蓝盛芳,等.广东三水市种植业系统的能值分析及其可持续发展[J].农业现代化研究,1999,20(6):359-362.
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备注/Memo
收稿日期:2013-08-23;改回日期:2013-10-08。
基金项目:国家自然科学基金（41071083）；盐城师范学院校级科研项目（11YCKL005）
作者简介:杨志平(1968-),男,江苏盐城人,讲师,硕士,主要从事环境生态研究。E-mail:yangzhiping20042255@sina.com