A Simple Method of In-situ Measuring Soil Respiration Rate
[Objective] A simple closed air chamber method that was expected to overcome the disadvantages of traditional method,was proposed to measure soil respiration rate statically.[Methods] To solve the shortcoming of the traditional static and closed air chamber method,such as refill process of the same volume of gas sample that was taken out and the higher cost of equipment,this measurement method was designed.The apparatus consists of three parts,including a base that was used to set the static closed chamber,a barrel shaped body of static closed chamber and a suction pump detector CO2 concentration of.According to the specific implementation steps,the test was carried out in the field,and compared with the measured value of the alkali absorption method,validity of this method was verified.[Results] The test results showed that this method not only can overcome the shortcomings in measurement process of traditional static closed chamber method,but also is accurate,low-cost,and easy to use.[Conclusion] This method can be applied to various field conditions in soil respiration rate measurement in situ.
国家科技期刊平台
NSTL
万方数据
维普
