Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition
The Tibetan Plateau is of fundamental ecological significance to China, Asia, and the world. In recent years, Tibetan grasslands have suffered from severe degradation due to climate change and anthropogenic disturbance. In this study, nitrogen (N) and phosphate were applied to a moderately degraded...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
International Mountain Society
2015-02-01
|
| Series: | Mountain Research and Development |
| Subjects: | |
| Online Access: | http://www.bioone.org/doi/full/10.1659/MRD-JOURNAL-D-11-00104.1 |
| _version_ | 1818503107365044224 |
|---|---|
| author | Jingsheng Wang Zhikai Wang Xianzhou Zhang Yangjian Zhang Congqian Ran Junlong Zhang Baoxiong Chen Bingsong Zhang |
| author_facet | Jingsheng Wang Zhikai Wang Xianzhou Zhang Yangjian Zhang Congqian Ran Junlong Zhang Baoxiong Chen Bingsong Zhang |
| author_sort | Jingsheng Wang |
| collection | DOAJ |
| description | The Tibetan Plateau is of fundamental ecological significance to China, Asia, and the world. In recent years, Tibetan grasslands have suffered from severe degradation due to climate change and anthropogenic disturbance. In this study, nitrogen (N) and phosphate were applied to a moderately degraded Kobresia pygmaea meadow and Stipa purpurea steppe in the arid alpine northern Tibetan Plateau. The results showed that with increasing nitrogenous fertilizer, the height, coverage, biomass, and importance value of the K. pygmaea population decreased whereas the population of S. purpurea exhibited the opposite trend. Application of a mixed fertilizer with the same amount of N and phosphorus (P) (5 g each per m2) doubled the biomass of the K. pygmaea meadow and increased the aboveground biomass of the S. purpurea steppe by 72.3%. The nitrogenous fertilizer increased the total biomass and belowground biomass of the S. purpurea steppe, whereas the mixed fertilizer was beneficial to aboveground grass recovery. Application of 10 g N + 5 g P m−2 fertilizer increased aboveground biomass by 164.8%, whereas the belowground biomass was less than the control by 4.7%. The N and P fertilizer did not affect soil pH, except for some changes in soil N and P contents. |
| first_indexed | 2024-12-10T21:19:35Z |
| format | Article |
| id | doaj.art-a7650b0661264a9fa3984bcb1d54d8a3 |
| institution | Directory Open Access Journal |
| issn | 0276-4741 1994-7151 |
| language | English |
| last_indexed | 2024-12-10T21:19:35Z |
| publishDate | 2015-02-01 |
| publisher | International Mountain Society |
| record_format | Article |
| series | Mountain Research and Development |
| spelling | doaj.art-a7650b0661264a9fa3984bcb1d54d8a32022-12-22T01:33:11ZengInternational Mountain SocietyMountain Research and Development0276-47411994-71512015-02-01351788610.1659/MRD-JOURNAL-D-11-00104.1Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate AdditionJingsheng Wang0Zhikai Wang1Xianzhou Zhang2Yangjian Zhang3Congqian Ran4Junlong Zhang5Baoxiong Chen6Bingsong Zhang7Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, 100101 Beijing, China; School of Environment and Natural Resources, Renmin University of China, 59 Zhongguancun Street, Haidian District, 100872 Beijing, ChinaSchool of Environment and Natural Resources, Renmin University of China, 59 Zhongguancun Street, Haidian District, 100872 Beijing, ChinaInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, 100101 Beijing, China; zhangxz@igsnrr.ac.cnInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, 100101 Beijing, ChinaSchool of Environment and Natural Resources, Renmin University of China, 59 Zhongguancun Street, Haidian District, 100872 Beijing, ChinaSchool of Environment and Natural Resources, Renmin University of China, 59 Zhongguancun Street, Haidian District, 100872 Beijing, ChinaInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, 100101 Beijing, ChinaInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, 100101 Beijing, ChinaThe Tibetan Plateau is of fundamental ecological significance to China, Asia, and the world. In recent years, Tibetan grasslands have suffered from severe degradation due to climate change and anthropogenic disturbance. In this study, nitrogen (N) and phosphate were applied to a moderately degraded Kobresia pygmaea meadow and Stipa purpurea steppe in the arid alpine northern Tibetan Plateau. The results showed that with increasing nitrogenous fertilizer, the height, coverage, biomass, and importance value of the K. pygmaea population decreased whereas the population of S. purpurea exhibited the opposite trend. Application of a mixed fertilizer with the same amount of N and phosphorus (P) (5 g each per m2) doubled the biomass of the K. pygmaea meadow and increased the aboveground biomass of the S. purpurea steppe by 72.3%. The nitrogenous fertilizer increased the total biomass and belowground biomass of the S. purpurea steppe, whereas the mixed fertilizer was beneficial to aboveground grass recovery. Application of 10 g N + 5 g P m−2 fertilizer increased aboveground biomass by 164.8%, whereas the belowground biomass was less than the control by 4.7%. The N and P fertilizer did not affect soil pH, except for some changes in soil N and P contents.http://www.bioone.org/doi/full/10.1659/MRD-JOURNAL-D-11-00104.1FertilizationNitrogen and phosphorus additionAlpine grasslandSoil productivityTibetan Plateau |
| spellingShingle | Jingsheng Wang Zhikai Wang Xianzhou Zhang Yangjian Zhang Congqian Ran Junlong Zhang Baoxiong Chen Bingsong Zhang Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition Mountain Research and Development Fertilization Nitrogen and phosphorus addition Alpine grassland Soil productivity Tibetan Plateau |
| title | Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition |
| title_full | Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition |
| title_fullStr | Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition |
| title_full_unstemmed | Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition |
| title_short | Response of Kobresia pygmaea and Stipa purpurea Grassland Communities in Northern Tibet to Nitrogen and Phosphate Addition |
| title_sort | response of kobresia pygmaea and stipa purpurea grassland communities in northern tibet to nitrogen and phosphate addition |
| topic | Fertilization Nitrogen and phosphorus addition Alpine grassland Soil productivity Tibetan Plateau |
| url | http://www.bioone.org/doi/full/10.1659/MRD-JOURNAL-D-11-00104.1 |
| work_keys_str_mv | AT jingshengwang responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT zhikaiwang responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT xianzhouzhang responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT yangjianzhang responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT congqianran responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT junlongzhang responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT baoxiongchen responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition AT bingsongzhang responseofkobresiapygmaeaandstipapurpureagrasslandcommunitiesinnortherntibettonitrogenandphosphateaddition |