| 阿克苏地区农业生态系统的物质与能量流动 |
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| 引用本文： | 刘彬,李新国,王建勋.阿克苏地区农业生态系统的物质与能量流动[J].中国农学通报,2005,21(9):365-366,413. |
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| 作者姓名： | 刘彬 李新国 王建勋 |
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| 作者单位： | 1. 塔里木大学植物科技学院,新疆,阿拉尔,843300
2. 塔里木大学信息工程学院,新疆,阿拉尔,843300 |
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| 基金项目： | 国家自然科学基金“西北地区退耕还林还草可行性基础研究（30170539）. |
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| 摘 要： | 以阿克苏地区为对象研究了该区农业生态系统中能量流动和物质循环的一般特征。结果显示,在能流方面,阿克苏地区农田生态系统的能量产出水平和效率都处于较低水平;在物流方面,农田肥料投入单一,主要以化肥为主,并且化肥使用量已超出最适施肥量范围,造成土壤养分严重失衡。今后应改善投能结构,优化种植业结构,促进系统持续、稳定、高效的发展。
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| 关 键 词： | 阿克苏地区 农业生态系统 能星流动 物质循环 |
| 收稿时间： | 2005-05-10 |
| 修稿时间： | 2005-05-102005-05-13 |
Materials Cycle and Energy Flow in Agroecosystem in The Aksu Area |
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| Liu Bin,Li Xinguo,Wang Jianxun.Materials Cycle and Energy Flow in Agroecosystem in The Aksu Area[J].Chinese Agricultural Science Bulletin,2005,21(9):365-366,413. |
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| Authors: | Liu Bin Li Xinguo Wang Jianxun |
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| Institution: | 1. Institute of Plant Science and Technology, Tarim university, Alar Xinjiang 843300; Z.Institute of Information Engineering, Tarim university, Alar Xinjiang 843300 |
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| Abstract: | This paper studies the general behaviors of energy flow and material cycle in agroecosystem in Aksu area. The results reveal the following facts in the Aksu Area. As to the energy flow, the energy production in cropland ecologic system is low-level and inefficient. As for the material flow, the structure of manure used is not diverse, fertilizer is the main manure. What's more, the fertilizer used is beyond the endure limit to soil, which results to the unbalance of soil nutrient. From now on,Improving the structure of the power on stream and optimizing the structure of planting henceforth,promote the system to be lasting,steady,high-efficient. mproving the structure of the power on stream and optimizing the structure of planting promote the system to be lasting,steady, high-efficient. |
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| Keywords: | Aksu area Agroecosystem Material cycle Energy flow |
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