基于活立木介电特性的植物茎体含水量测量方法

doi:10.11707/j.1001-7488.20101128

Scientia Silvae Sinicae ›› 2010, Vol. 46 ›› Issue (11): 179-183.doi: 10.11707/j.1001-7488.20101128

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A Method for Measuring Plant Stem Water Content Based on Plant Dielectric Properties

Zhao Yandong¹Wang Hailan¹Hu Peijin¹Yin Weilun²

1.Engineeing College, Beijing Forestry UniversityBeijing 100083; 2. College of Biological Science and Biotechnology,Beijing Forestry UniversityBeijing 100083

Received:2009-08-15 Revised:2010-07-11 Online:2010-11-25 Published:2010-11-25

Abstract

Abstract:

To determine of plant water content on-line, a sensor, hydraulic, BD-Ⅱ sensor based on SWR (Standing-Wave Ratio) measurement principle was developed. To evaluate the feasibility of the proposed technique, a comparative experiment between the developed sensor (BD-Ⅱ sensor) and a already established SF-L (SF Type Sap Flow Systems, Germany) was conducted over the past two years. The experimental results obtained from both instruments showed a good agreement (R²=0.76). Therefore, the proposed technique is a promising tool in dynamically monitoring plant stem water.

Key words: plant water content, measure, sensor

Zhao YandongWang HailanHu PeijinYin Weilun. A Method for Measuring Plant Stem Water Content Based on Plant Dielectric Properties[J]. Scientia Silvae Sinicae, 2010, 46(11): 179-183.

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A Method for Measuring Plant Stem Water Content Based on Plant Dielectric Properties

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