新疆克拉玛依生态农业开发模式探讨
Development Model of Karamay Ecological Agriculture in Xinjiang Uygur Autonomous Region
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摘要: 根据生态农业“整体、协调、循环、再生”的基本原理及“区域性、高效性、持续性”的特点，针对克拉玛依生态环境比较脆弱的实际情况，设计出克拉玛依生态农业开发模式参考图；并在确定生态农业开发具体规模的前提下对生态系统中土壤养分平衡、能量平衡进行了初步分析。分析结果表明，土壤养分三元素氮、磷、钾的输入输出比分别为1.54、1.27和0.56，由于克拉玛依是缺磷少氮富钾地区，因此，系统所缺养分的输入大于输出：能量的投入产出比为2.51，系统能实现良性循环和可持续发展。Abstract: In accordance with the basic principle of ‘integrity, harmony, circulation & regeneration’ and the characteristics of ‘regional, high-efficiency & sustainability’, the developing model of Karamay ecological agriculture was made in connection with the specific condition of the fragile ecological evironment in Karamay. Given the developing scale of ecological agriculture, the balances of the soil nutrient & energy in this ecological system were prelimarily analyzed. The results showed that the ratios of input to output of N,P & K in soil nutrient are 1.54,1.27 & 0.56 respectively. Since Karamay areas are rich in phosphorus but short in potassium, the nutrient input & output of the system can keep balance. The ratio of input to output of energy reaches 2.51. Therefore, the ecological agricultural system can realize positive circulation and sustainable development.
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Keywords:
- Karamay /
- ecological agriculture /
- development model /
- ecological benefit
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