Global-scale patterns of nutrient density and partitioning in forests in relation to climate
文献类型：期刊论文
| 作者 | Cheng, Xiaoli1; Zhang, Quanfa1; Zhang, Kerong1; Zhang, Yulong2; Song, Conghe2; Dang, Haishan1 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 24期号:1页码:536-551 |
| 关键词 | allocation allometry biogeography forest biomass nutrient-based Root: Shoot ratio nutrient storage |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.13860 |
| 英文摘要 | Knowledge of nutrient storage and partitioning in forests is imperative for ecosystem models and ecological theory. Whether the nutrients (N, P, K, Ca, and Mg) stored in forest biomass and their partitioning patterns vary systematically across climatic gradients remains unknown. Here, we explored the global-scale patterns of nutrient density and partitioning using a newly compiled dataset including 372 forest stands. We found that temperature and precipitation were key factors driving the nutrients stored in living biomass of forests at global scale. The N, K, and Mg stored in living biomass tended to be greater in increasingly warm climates. The mean biomass N density was 577.0, 530.4, 513.2, and 336.7 kg/ha for tropical, subtropical, temperate, and boreal forests, respectively. Around 76% of the variation in biomass N density could be accounted by the empirical model combining biomass density, phylogeny (i.e., angiosperm, gymnosperm), and the interaction of mean annual temperature and precipitation. Climate, stand age, and biomass density significantly affected nutrients partitioning at forest community level. The fractional distribution of nutrients to roots decreased significantly with temperature, suggesting that forests in cold climates allocate greater nutrients to roots. Gymnosperm forests tended to allocate more nutrients to leaves as compared with angiosperm forests, whereas the angiosperm forests distributed more nutrients in stems. The nutrient-based Root:Shoot ratios (R:S), averaged 0.30 for R:S-N, 0.36 for R:S-P, 0.32 for R:S-K, 0.27 for R:S-Ca, and 0.35 for R:S-Mg, respectively. The scaling exponents of the relationships describing root nutrients as a function of shoot nutrients were more than 1.0, suggesting that as nutrient allocated to shoot increases, nutrient allocated to roots increases faster than linearly with nutrient in shoot. Soil type significantly affected the total N, P, K, Ca, and Mg stored in living biomass of forests, and the Acrisols group displayed the lowest P, K, Ca, and Mg. |
| 资助项目 | National Natural Science Foundation of China[31470499] ; National Natural Science Foundation of China[31770562] ; National Natural Science Foundation of China[31200340] ; National Natural Science Foundation of China[31130010] ; Chinese Academy of Sciences[XDA05060500] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000426506100072 |
| 出版者 | WILEY |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/4666]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Cheng, Xiaoli; Zhang, Quanfa; Zhang, Kerong |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan, Hubei, Peoples R China 2.Univ North Carolina Chapel Hill, Dept Geog, Chapel Hill, NC USA |
| 推荐引用方式 GB/T 7714 | Cheng, Xiaoli,Zhang, Quanfa,Zhang, Kerong,et al. Global-scale patterns of nutrient density and partitioning in forests in relation to climate[J]. GLOBAL CHANGE BIOLOGY,2018,24(1):536-551. |
| APA | Cheng, Xiaoli,Zhang, Quanfa,Zhang, Kerong,Zhang, Yulong,Song, Conghe,&Dang, Haishan.(2018).Global-scale patterns of nutrient density and partitioning in forests in relation to climate.GLOBAL CHANGE BIOLOGY,24(1),536-551. |
| MLA | Cheng, Xiaoli,et al."Global-scale patterns of nutrient density and partitioning in forests in relation to climate".GLOBAL CHANGE BIOLOGY 24.1(2018):536-551. |
入库方式： OAI收割
来源：武汉植物园
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