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应用生态学报 ›› 1994, Vol. 5 ›› Issue (2): 138-143.

• 研究论文 • 上一篇    下一篇

林网内蒸发水平分布规律的研究

赵焕胤, 朱劲伟, 王维华   

  1. 中国科学院沈阳应用生态研究所, 沈阳110015
  • 收稿日期:1993-04-12 修回日期:1993-10-08 出版日期:1994-04-25 发布日期:1994-04-25
  • 基金资助:

    “七五”国家科技攻关项目

Horizontal distribution pattern of evaporation in windbreak network

Zhao Huanyin, Zhu Jinwei, Wang Weihua   

  1. Institute of Applied Ecology, Academic Sinica, Shenyang 110015
  • Received:1993-04-12 Revised:1993-10-08 Online:1994-04-25 Published:1994-04-25

摘要: 通过水面蒸发观测资料分析,提出林网内相对蒸发变化可用分段曲线拟合,分为对数区与二次曲线区两部分。对数区相对蒸发变化服从对数规律Eh/E0=a1+b1lnh,二次曲线区相对蒸发变化服从二次曲线规律Eh/E0=a2h2十b2h+c.在蒸发水平分布特征研究基础上,对林网内平均相对蒸发强度进行了估算,并讨论了保水性能最佳防护林带距间题。

关键词: 防护林, 相对蒸发, 水平分布, 带距, 生态安全, 能值-生态足迹模型, 可持续性, 东北老工业基地, 生态协调系数

Abstract: In this paper,the data on water surface evaporation are analysed. The change of relative evaporation in windbreak network can be fitted by segmental curve, which includes two parts:the logarithmic one obeies natural logarithmic rule Eh/E0=a1+b1lnh,and the second-degree curve one obeies second-degree curve rule,Eh/E0=a2h2十b2h+c.Based on the characteristic study of horizontal distribution of evaporation,the mean relative evaporation intensity in windbreak network is estimated and the optimum distance space of sheltbelts for water reserve is discussed.

Key words: Shelter forest, Ralative evaporation, Horizontal distribution pattern, Distance space of sheltbets, emergy-ecological footprint approach, sustainability, northeast old industrial area., ecological coordination coefficient, ecological security