Mr. Mingming Guo Profile

Mingming Guo

at China Jiliang University

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Proceedings Article | 26 January 2016 Paper

Real-time precision measuring device of tree diameter growth

Mingming Guo, Aijun Chen, Dongsheng Li, Nan Liu, Jingyuan Yao

Proc. SPIE. 9903, Seventh International Symposium on Precision Mechanical Measurements

KEYWORDS: Carbon, Forestry, Sensors, Data storage, Magnetism, LCDs, Humidity, Measurement devices, Data communications, Temperature metrology

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DBH(diameter at breast height) is an important factor to reflect of the quality of plant growth, also an important parameter indispensable in forest resources inventory and forest carbon sink, the accurate measurement of DBH or not is directly related to the research of forest resources inventory and forest carbon sink. In this paper, the principle and the mathematical model of DBH measurement device were introduced, the fixture measuring device and the hardware circuit for this tree diameter were designed, the measurement software programs were compiled, and the precision measuring device of tree diameter growth was developed. Some experiments with Australia fir were conducted. Based on experiment data, the correlations among the DBH variation of Australian fir, the environment temperature, air humility and PAR(photosynthetically active radiation) were obtained. The effects of environmental parameters (environment temperature, air humility and PAR) on tree diameter were analyzed. Experimental results show that there is a positive correlation between DBH variation of Australian fir and environment temperature, a negative correlation between DBH variation of Australian fir and air humility , so is PAR.

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