TY - JOUR
T1 - Demonstration and Validation of a Biosensing Technique to Interpret Suction Induced in Vegetated Soil
AU - Bordoloi, Sanandam
AU - Garg, Ankit
AU - Sekharan, Sreedeep
N1 - Funding Information:
The authors are grateful to National Natural Science Foundation (NSFC) for support (Project grant 41907252). Authors would like to acknowledge Siraj Hossain and Rojimul Hussain (Postgraduate students) for their help in experiments.
Funding Information:
The authors are grateful to National Natural Science Foundation (NSFC) for support (Project grant 41907252). Authors would like to acknowledge Siraj Hossain and Rojimul Hussain (Postgraduate students) for their help in experiments.
Publisher Copyright:
© 2022, Indian Geotechnical Society.
PY - 2022/6
Y1 - 2022/6
N2 - High capacity tensiometers and TEROS 21 sensors are commonly installed in vegetated soil to measure suction. However, these approaches may not be feasible and economical for long-term field monitoring in relatively large areas. The main objective of this study is to develop a non-destructive biosensing technique to interpret suction induced in vegetated soil. It is evident from the literature that stomatal conductance (SC) changes with the suction. Therefore, interpretation of suction from the SC was demonstrated in this study. A gradual decrease in SC was found due to increase in suction from 6 to 1520 kPa. This trend was not found to vary with changes in radiant energy. However, the magnitudes of SC were observed to be influenced by radiant energy. Hence, three correlations were developed to interpret suction from SC under bright, moderately bright and dim light conditions. These correlations can be adapted to interpret the suction under day light condition.
AB - High capacity tensiometers and TEROS 21 sensors are commonly installed in vegetated soil to measure suction. However, these approaches may not be feasible and economical for long-term field monitoring in relatively large areas. The main objective of this study is to develop a non-destructive biosensing technique to interpret suction induced in vegetated soil. It is evident from the literature that stomatal conductance (SC) changes with the suction. Therefore, interpretation of suction from the SC was demonstrated in this study. A gradual decrease in SC was found due to increase in suction from 6 to 1520 kPa. This trend was not found to vary with changes in radiant energy. However, the magnitudes of SC were observed to be influenced by radiant energy. Hence, three correlations were developed to interpret suction from SC under bright, moderately bright and dim light conditions. These correlations can be adapted to interpret the suction under day light condition.
KW - Non-destructive technique
KW - Stomatal conductance
KW - Suction measurement
KW - Vegetated soil
UR - http://www.scopus.com/inward/record.url?scp=85123090746&partnerID=8YFLogxK
U2 - 10.1007/s40098-021-00590-z
DO - 10.1007/s40098-021-00590-z
M3 - Article
AN - SCOPUS:85123090746
SN - 0971-9555
VL - 52
SP - 537
EP - 541
JO - Indian Geotechnical Journal
JF - Indian Geotechnical Journal
IS - 3
ER -