Construction Technology and Rainwater Harvesting Efficiency of Biological Rainwater Catchment

FENG Xue-zan; ZHANG Wan-jun; ZHAO Yan-min; ZHOU Gui-lian

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Construction Technology and Rainwater Harvesting Efficiency of Biological Rainwater Catchment

- Construction Technology and Rainwater Harvesting Efficiency of Biological Rainwater Catchment
- Bulletin of Soiland Water Conservation Vol. 28, Issue 1, Pages: 145-149(2009)
- 作者机构：
  
  1. 中国科学院遗传与发育生物学研究所农业资源研究中心,河北,石家庄,050021
  2. 河北省林业厅,河北,石家庄,050081
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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FENG Xue-zan, ZHANG Wan-jun, ZHAO Yan-min, et al. Construction Technology and Rainwater Harvesting Efficiency of Biological Rainwater Catchment[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 145-149.
DOI：

FENG Xue-zan, ZHANG Wan-jun, ZHAO Yan-min, et al. Construction Technology and Rainwater Harvesting Efficiency of Biological Rainwater Catchment[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 145-149. DOI：

摘要

通过人工培育方法在室内、室外条件下研究了生物结皮人工培育技术

并对人工生物结皮对土壤渗透性的影响及其生物集雨面的集雨效率进行了测定。研究结果表明

在适宜的湿度(空气相对湿度80%-90%

土壤湿度13%-20%);温度(25℃-35℃)和光照条件(2500-12000lx)下

对培育材料进行适当的处理后

经过20-30d的人工培育

可在整平压实的坡面上形成连续的人工生物结皮集雨面。采用双环入渗仪和径流小区测定发现

人工生物结皮可使土壤入渗速率降低50%左右

生物结皮集雨面的集雨效率达到60%。所研究的生物结皮培育技术还可用于人工批量繁育生物结皮

用于生物集雨面的建设

以避免大量采集自然结皮对生态环境造成的破坏。

Abstract

Experiments were conducted indoor and outdoor to study the technology of artificial cultivation of biological soil crust(BSC).Infiltration rates for the soil with and without biological soil crust were measured and runoff coefficients of biological rainwater harvesting plots were determined.Results showed that after treated reasonably

a continuous BSC with > 90% coverage could be formed under 13%-20% relative air humidity

13%-20% substrate humidity

25℃-35℃

and 2500-12000 lx light intensity in 20-30 days.The cultivated BSC growing on an even

smooth

and soil-compressed slope can form an intact biological rainwater harvesting plot.Infiltration rate for the BSC was reduced by 50% compared to the CK and the rainwater harvesting coefficient of BSC rainwater harvesting plot was up to 60%.Moreover

the technology of the BSC cultivation can be used in the propagation of BSC to avoid the damage to environment caused by the over-collection of natural BSC in the establishment of a biological rainwater catchment.

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