Nitrogen enrichment enhances the dominance of grasses over forbs in a temperate steppe ecosystem
نویسندگان
چکیده
منابع مشابه
Nitrogen enrichment enhances the dominance of grasses
L. Song, X. M. Bao, X. J. Liu, Y. Zhang, P. Christie, A. Fangmeier, and F. S. Zhang College of Resources and Environmental Sciences, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing 100193, China State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences (CAS), Urumqi 83...
متن کاملDifferential responses of grasses and forbs led to marked reduction in belowground productivity in temperate steppe following chronic N deposition
Wenming Bai*, Dali Guo, Qiuying Tian, Nana Liu, Weixin Cheng, Linghao Li and Wen-Hao Zhang* State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing, China; Key Laboratory of Ecosystem Network Observation and Modeling, Synthesis Research Center of Chinese Ecosystem Research Network, Institute of Geographic Sciences and Natural Re...
متن کاملWater and nitrogen availability co-control ecosystem CO2 exchange in a semiarid temperate steppe
Both water and nitrogen (N) availability have significant effects on ecosystem CO2 exchange (ECE), which includes net ecosystem productivity (NEP), ecosystem respiration (ER) and gross ecosystem photosynthesis (GEP). How water and N availability influence ECE in arid and semiarid grasslands is still uncertain. A manipulative experiment with additions of rainfall, snow and N was conducted to tes...
متن کاملNitrogen effects on net ecosystem carbon exchange in a temperate steppe
It has widely been documented that nitrogen (N) enrichment stimulates plant growth and net primary production. However, there is still dispute on how N addition affects net ecosystem CO2 exchange (NEE), which represents the balance between ecosystem carbon (C) uptake and release. We conducted an experimental study to examine effects of N addition on NEE in a temperate steppe in northern China f...
متن کاملEffects of Increased Nitrogen Deposition and Precipitation on Seed and Seedling Production of Potentilla tanacetifolia in a Temperate Steppe Ecosystem
BACKGROUND The responses of plant seeds and seedlings to changing atmospheric nitrogen (N) deposition and precipitation regimes determine plant population dynamics and community composition under global change. METHODOLOGY/PRINCIPAL FINDINGS In a temperate steppe in northern China, seeds of P. tanacetifolia were collected from a field-based experiment with N addition and increased precipitati...
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ژورنال
عنوان ژورنال: Biogeosciences Discussions
سال: 2011
ISSN: 1810-6285
DOI: 10.5194/bgd-8-5057-2011