Stable Isotope Technique——An Advanced Technology in Ascertaining Plant-Water Relations
Dan XING;Wanrong YANG;Guihua PENG;Dan SU;Fangfang LIAO;Shiyu HAN;Research Institute of Sericulture and Pepper,Guizhou Province;College of Forestry, Guizhou University;
Some key terms and relevant standard related with stable isotope technique were introduced, and the determination of carbon, hydrogen and oxygen, the three stable isotopes in water, as well as their isotope effect was discussed. Applications and advances of stable isotopes were stated mainly from plant water source, water use efficiency, the most active water adsorption region in root system and water resources utilization differences among different species in plant community. In addition, some existing problems in investigating the plant-water relations by using stable isotope technique were put forward. In this study, we aimed to promote the sustainable development of stable isotope technique in the research of plant water utilization and in the field of ecology in China.