Ecological stoichiometry-based study of the influence of soil saline-alkali stress on nutrient homeostasis in L. chinensis
文献类型：期刊论文
| 作者 | Liu, Yi1; Wang, Yuejiao2; Li, Shujie2; Liu, Hongshan2; Li, Qingyu2; Li, Yuefen2 |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2018-12-15 |
| 卷号 | 165页码:243-249 |
| 关键词 | Homeostasis model Ecological stoichiometry L. chinensis Saline-alkali stress N and P addition |
| ISSN号 | 0147-6513 |
| DOI | 10.1016/j.ecoenv.2018.09.020 |
| 英文摘要 | Soil salinization is a major cause of land degradation and hinders the effective utilization of agricultural land resources. Leymus chinensis (L. chinensis), as a dominant species with wide ecological amplitude, plays an important role in improving saline-alkali grasslands and indicating the degree of salinization. In this study, a sand culture experiment (nitrogen and phosphorus addition accompanied by saline-alkali stress) was designed to investigate the impact of different saline-alkali environments on the ecological stoichiometric homeostasis of L. chinensis with the aim of elucidating the saline-alkali resistance mechanisms. The results showed that the homeostasis indexes of N, P and N:P in the aboveground part of L. chinensis were generally higher than those in the belowground part under different saline-alkali conditions. Furthermore, the homeostasis index of N (HN) was greater than that of P (He) in the aboveground part, whereas HN was less than Hp in the belowground part. This indicates that the growth aboveground of L. chinensis was mainly dependent on N, whereas the growth belowground was mainly affected by P. The homeostasis index of the aboveground organs was 4.45-12.93 under pH 7-9.8. In contrast, H-N and HN:P(+ N) in the belowground organs did not conform to a homeostasis model when pH > 9.1. Consequently, when L. chinensis is subjected to high saline-alkali stress, the homeostasis reaction of the roots is more sensitive than that of the aboveground organs. |
| 资助项目 | China Scholarship Council[201506175099] ; Natural Science Foundation of Jilin Province, China[201215017] ; National Natural Science Foundation of China[31670528] |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000447484000029 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/5994]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Yuefen |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 2.Jilin Univ, Coll Earth Sci, Changchun 130061, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yi,Wang, Yuejiao,Li, Shujie,et al. Ecological stoichiometry-based study of the influence of soil saline-alkali stress on nutrient homeostasis in L. chinensis[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,165:243-249. |
| APA | Liu, Yi,Wang, Yuejiao,Li, Shujie,Liu, Hongshan,Li, Qingyu,&Li, Yuefen.(2018).Ecological stoichiometry-based study of the influence of soil saline-alkali stress on nutrient homeostasis in L. chinensis.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,165,243-249. |
| MLA | Liu, Yi,et al."Ecological stoichiometry-based study of the influence of soil saline-alkali stress on nutrient homeostasis in L. chinensis".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 165(2018):243-249. |
入库方式： OAI收割
来源：武汉植物园
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