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Updated: Jul 13, 2026

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Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments
Published on: July 24, 2018
[Soil net nitrogen mineralization in the typical temperate grassland]
Xing-Ren Liu1, Yun-She Dong, Yu-Chun Qi
1Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. liuxr.04b@igsnrr.ac.cn
Huan Jing Ke Xue= Huanjing Kexue
|July 19, 2007
Summary
This study measured soil nitrogen mineralization rates in Inner Mongolia
Area of Science:
- Ecology
- Soil Science
- Biogeochemistry
Background:
- Temperate grasslands are vital ecosystems.
- Nitrogen mineralization is a key soil process.
- Understanding nitrogen cycling is crucial for grassland health.
Purpose of the Study:
- To quantify soil net nitrogen mineralization rates in three distinct Inner Mongolian grasslands.
- To investigate the influence of incubation methods and rainfall on nitrogen mineralization.
- To establish relationships between soil moisture and nitrogen mineralization rates.
Main Methods:
- Resin-core technique for soil sampling.
- Field incubation over July-October 2005.
- Statistical analysis of collected data.
Main Results:
- Net nitrogen mineralization rates varied among grassland types: Stipa baicalensis (0.333 kg/hm2/d), Aneulolepidum Chinense (0.316 kg/hm2/d), and Stipa krylovii (0.211 kg/hm2/d).
- Significant differences observed between phase and continuous incubation methods.
- Rainfall and soil moisture strongly influenced nitrogen mineralization rates, with correlation coefficients ranging from 0.56 to 0.80.
Conclusions:
- Grassland type significantly impacts soil nitrogen mineralization.
- Incubation methodology affects measured rates.
- Soil moisture is a critical driver of nitrogen mineralization in these temperate grasslands.
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