Leaf Photosynthetic and Functional Traits of Grassland Dominant Species in Response to Nutrient Addition on the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Jin, Yuan1; Lai, Shuaibin1; Chen, Zhifei2; Jian, Chunxia1; Zhou, Junjie1; Niu, Furong3; Xu, Bingcheng1,4 |
| 刊名 | PLANTS-BASEL
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 11期号:21页码:16 |
| 关键词 | semiarid grassland fertilization leaf functional trait leaf photosynthesis atmospheric nitrogen deposition |
| DOI | 10.3390/plants11212921 |
| 通讯作者 | Xu, Bingcheng(bcxu@ms.iswc.ac.cn) |
| 英文摘要 | Leaf photosynthetic and functional traits of dominant species are important for understanding grassland community dynamics under imbalanced nitrogen (N) and phosphorus (P) inputs. Here, the effects of N (N0, N50, and N100, corresponding to 0, 50, and 100 kg ha(-1) yr(-1), respectively) or/and P additions (P0, P40, and P80, corresponding to 0, 40, and 80 kg ha(-1) yr(-1)) on photosynthetic characteristics and leaf economic traits of three dominant species (two grasses: Bothriochloa ischaemum and Stipa bungeana; a leguminous subshrub: Lespedeza davurica) were investigated in a semiarid grassland community on the Loess Plateau of China. Results showed that, after a three-year N addition, all three species had higher specific leaf area (SLA), leaf chlorophyll content (SPAD value), maximum net photosynthetic rate (P-Nmax), and leaf instantaneous water use efficiency (WUE), while also having a lower leaf dry matter content (LDMC). The two grasses, B. ischaemum and S. bungeana, showed greater increases in P-Nmax and SLA than the subshrub L. davurica. P addition alone had no noticeable effect on the P-Nmax of the two grasses while it significantly increased the P-Nmax of L. davurica. There was an evident synergetic effect of the addition of N and P combined on photosynthetic traits and most leaf economic traits in the three species. All species had relatively high P-Nmax and SLA under the addition of N50 combined with P40. Overall, this study suggests that N and P addition shifted leaf economic traits towards a greater light harvesting ability and, thus, elevated photosynthesis in the three dominant species of a semiarid grassland community, and this was achieved by species-specific responses in leaf functional traits. These results may provide insights into grassland restoration and the assessment of community development in the context of atmospheric N deposition and intensive agricultural fertilization. |
| WOS关键词 | WATER-USE EFFICIENCY ; PHOSPHORUS LIMITATION ; NITROGEN APPLICATION ; ECONOMIC SPECTRUM ; ELEVATED CO2 ; PRODUCTIVITY ; CARBON ; FERTILIZATION ; METABOLISM ; DIVERSITY |
| 资助项目 | National Key Research and Development Program of China[2016YFC0501703] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000882243800001 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186850]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Bingcheng |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Xianyang 712100, Peoples R China 2.Guizhou Univ, Coll Life Sci, Guiyang 550025, Peoples R China 3.Gansu Agr Univ, Coll Forestry, Lanzhou 730070, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Xianyang 712100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Yuan,Lai, Shuaibin,Chen, Zhifei,et al. Leaf Photosynthetic and Functional Traits of Grassland Dominant Species in Response to Nutrient Addition on the Chinese Loess Plateau[J]. PLANTS-BASEL,2022,11(21):16. |
| APA | Jin, Yuan.,Lai, Shuaibin.,Chen, Zhifei.,Jian, Chunxia.,Zhou, Junjie.,...&Xu, Bingcheng.(2022).Leaf Photosynthetic and Functional Traits of Grassland Dominant Species in Response to Nutrient Addition on the Chinese Loess Plateau.PLANTS-BASEL,11(21),16. |
| MLA | Jin, Yuan,et al."Leaf Photosynthetic and Functional Traits of Grassland Dominant Species in Response to Nutrient Addition on the Chinese Loess Plateau".PLANTS-BASEL 11.21(2022):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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