Soil nutrient heterogeneity shifts functional group composition without altering total biomass in an alpine grassland
文献类型：期刊论文
| 作者 | Zheng, Li-Li6; Song, Ming-Hua5; Meng, Jiao4; Guo, Yu5; Zu, Jia-Xing3; Xue, Wei6; Zhang, Li-Min6; Alpert, Peter2,7; Yu, Fei-Hai1,6 |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 2025-10-01 |
| 卷号 | 18期号:5页码:rtaf083 |
| 关键词 | alpine grassland nutrient availability patch contrast patch scale resource heterogeneity |
| ISSN号 | 1752-9921 |
| DOI | 10.1093/jpe/rtaf083 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Soil nutrient heterogeneity is common in nature, but few studies have tested the effects of soil nutrient heterogeneity on plant productivity in natural communities. Such effects are of particular interest in habitats where heterogeneity may be increasing due to global warming, as in high-elevation grassland on the Qinghai-Tibetan Plateau. In a three-year study, we added N, P and K to 2 m x 2 m plots in grassland to establish five homogeneous and six heterogeneous treatments that varied in patch size, patch contrast (difference in nutrient levels between patches), and number of patch types (with different nutrient levels). We measured aboveground biomass of grasses, other graminoids, legumes and forbs. Biomass of grasses was higher (over 300 g m(-)(2)) and that of legumes was lower (about 25 g m(-)(2)) at higher nutrient availability in homogeneous treatments. Within heterogeneous plots, grasses similarly had about 25% higher biomass and legumes had about 60% lower biomass in patches with higher nutrients, mainly at the larger patch size and sometimes more so when patch contrast was greater. Accounting for 47%-61% of the total aboveground biomass, grasses showed a roughly similar pattern to that of the whole community. An increase in soil nutrient heterogeneity is unlikely to affect plant aboveground biomass in this grassland, although it can increase biomass of grasses and decrease that of legumes. Soil nutrient heterogeneity might partly mitigate these effects if large patches without elevated nutrients persist. |
| URL标识 | 查看原文 |
| WOS关键词 | ENVIRONMENTAL HETEROGENEITY ; CLONAL INTEGRATION ; GRAZING INTENSITY ; INVASIVE ALIEN ; NITROGEN FORM ; PLANT ; RESPONSES ; MEADOW ; GROWTH ; EXPLAIN |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:001575124500001 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216083]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Yu, Fei-Hai |
| 作者单位 | 1.Shaoxing Univ, Sch Life & Environm Sci, Shaoxing 312000, Peoples R China 2.Univ Massachusetts, Biol Dept, Amherst, MA 01003 USA; 3.Nanning Normal Univ, Key Lab Environm Change & Resources Use Beibu Gulf, Minist Educ, Nanning 530001, Peoples R China; 4.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China; 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China; 6.Taizhou Univ, Inst Wetland Ecol & Clone Ecol, Sch Life Sci, Zhejiang Prov Key Lab Plant Evolutionary Ecol & Co, Taizhou 318000, Peoples R China; 7.Univ Calif Berkeley, Univ & Jepson Herbaria, Berkeley, CA 94720 USA; |
| 推荐引用方式 GB/T 7714 | Zheng, Li-Li,Song, Ming-Hua,Meng, Jiao,et al. Soil nutrient heterogeneity shifts functional group composition without altering total biomass in an alpine grassland[J]. JOURNAL OF PLANT ECOLOGY,2025,18(5):rtaf083. |
| APA | Zheng, Li-Li.,Song, Ming-Hua.,Meng, Jiao.,Guo, Yu.,Zu, Jia-Xing.,...&Yu, Fei-Hai.(2025).Soil nutrient heterogeneity shifts functional group composition without altering total biomass in an alpine grassland.JOURNAL OF PLANT ECOLOGY,18(5),rtaf083. |
| MLA | Zheng, Li-Li,et al."Soil nutrient heterogeneity shifts functional group composition without altering total biomass in an alpine grassland".JOURNAL OF PLANT ECOLOGY 18.5(2025):rtaf083. |
入库方式： OAI收割
来源：地理科学与资源研究所
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