在鄂尔多斯沙地改良试验站的撂荒地和退耕地，测定和分析了多年生人工草地对土壤呼吸速率的影响。
An analysis on the effect of cultivated grassland on soil respiration rate was conducted for the abandoned land and the transferred farmland in the Ordos Sandy land Improvement Experimental Station.
土壤呼吸速率的精确测定及其机理的研究是目前全球变化研究中最基础和最迫切需要解决的问题。
Precise measurement of soil respiration and research the mechanism is the most basal and urgent problem in global change.
以活性污泥为研究对象，分别测定了内源呼吸速率及最大呼吸速率同污泥浓度的关系，并进行了比较。
The relation of MLSS between the endogenous respiration rate and the maximum respiration rate are investigated and compared respectively based on activated sludge process.
以活性污泥为研究对象，分别测定了内源呼吸速率及最大呼吸速率同污泥浓度的关系，并进行了比较。
The relation of MLSS between the endogenous respiration rate and the maximum respiration rate are investigated and compared respectively based on activated sludge process.
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