黑土微生物活力對不同養(yǎng)分的響應-資料下載頁
2025-08-18 17:20本頁面
【正文】 li, Zhang Xianzhou. Some advance in the main factors controlling soil respiration[J]. Advance in Earth Science, 2022, 20(7): 778785.[18] 鄭立臣, 解宏圖, 張威, 等. 秸稈不同還田方式對土壤中溶解性有機碳的影響[J]. 生態(tài)環(huán)境, 2022, 15(1): 8083. Zheng Lichen, Xie Hongtu, Zhang Wei, et al. Effects of different ways of returning straw to the soils on soluble anic carbon[J]. Ecology and Environment, 2022, 15(1): 8083. [19] SMITH V R. Moisture, carbon and inanic nutrient controls of soil respiration at a subAntarctic island[J]. Soil Biology and Biochemistry, 2022, 37: 8191.1220 生態(tài)環(huán)境 第 17 卷第 3 期（2022 年 5 月）The response of soil microbial activity to different nutrition conditionsSong Douyan1,3, Bai Zhen1,3, He Hongbo1, Xie Hongtu1,2, Zhang Xudong1,2, Zhang Ming1,41. Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China。 2. National Research Station of Shenyang Agroecology, Shenyang 110016, China。3. Graduate School of Chinese Academy of Science, Beijing 100039, China。4. Biology College of Liaoning University, Shenyang 110036, China.Abstract: Soil respiration is a main biochemistry process for the deposition of the soil anic carbon. It can reflect the extent of the deposition of soil anic matter and the level of nutrition supplying. It also can be used as an index for the evaluation for the total activity of the microanisms . We set eight treatments and incubated the soil for 41 days in the laboratory. The response of soil respiration to different nutrient status is studied. The results showed that the addition of nitrogen (N) or phosphorus (P) only cannot raise the soil respiration rate, so is the NP treatment。 the cumulative amount of CO2 under the C (glucose) treatment was almost 10 times that of the control. The addition of nitrogen (N) can raise soil respiration rate significantly when the labile carbon substrate is sufficient。 the carbon and nitrogen interaction is significant。 the addition of phosphorus raise the soil microanisms’ activity when the carbon and nitrogen are both plentiful. In addition, under different nutrient status, the soil respiration rate reached the highest value at different time。 the CNP (C + N + P) treatment at 3 d, and then the CN (C+N) treatment at 5 d。 the C and CP (C+P) treatments reached the peak value at about 15 d. Key words: mollisol。 microanisms。 nutrition。 soil respiration
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