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Carbon and nitrogen storage in plant and soil as related to nitrogen and water amendment in a temperate steppe of northern China
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lü, Xiao-Tao Zhang, Guang-Ming Kong, De-Liang Han, Xing-Guo |
| Copyright Year | 2010 |
| Abstract | We conducted a field-manipulated experiment to assess whether changes in precipitation and nitrogen (N) deposition alter ecosystem carbon (C) and N storage. Both C and N pools of plant and soil were monitored when urea-N (17.5 g N m−2) and water (increasing mean annual precipitation by 50%) were added to a temperate steppe. After 2 years of treatments, both N and water addition significantly increased soil inorganic N availability by 125% and 62% during the growing season. While water addition significantly increased ecosystem C storage by 6% and N storage by 8%, N addition showed significant effects on neither of them. There were no interactions between N and water addition to affect both total C and N storage in this ecosystem, though they did interact to affect several individual pools (e.g., aboveground biomass N pool, litter C, and N pool). Results from the present study indicate that water availability is more important than N availability for C sequestration and that increasing precipitation will favor C sequestration in this semi-arid grassland. |
| Starting Page | 187 |
| Ending Page | 196 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00374-010-0522-4 |
| Alternate Webpage(s) | http://research.iae.ac.cn/web/UploadFiles_6498/201012/2010122416462215.pdf |
| Alternate Webpage(s) | http://sourcedb.ib.cas.cn/cn/ibthesis/201112/P020111226337003167392.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s00374-010-0522-4 |
| Volume Number | 47 |
| Journal | Biology and Fertility of Soils |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
