Divergent responses to water and nitrogen addition of three perennial bunchgrass species from variously degraded typical steppe in Inner Mongolia
文献类型：期刊论文
| 作者 | Zhang, Hongxiang2; Gao, Yingzhi3; Tasisa, Buli Yohannis3,6; Baskin, Jerry M.1; Baskin, Carol C.1,4; Lu, Xiao-Tao5; Zhou, Daowei2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-01-10 |
| 卷号 | 647页码:1344-1350 |
| ISSN号 | 0048-9697 |
| 关键词 | Biomass allocation Degradation gradient Grazing Nitrogen use efficiency Water use efficiency |
| DOI | 10.1016/j.scitotenv.2018.08.025 |
| 英文摘要 | Water and nitrogen (N) availability to plants are spatially and temporally variable in arid and semi-arid grasslands. We aimed to investigate the eco-physiological responses of three bunchgrass species to water and N addition along a gradient of habitat degradation in the Inner Mongolian typical grasslands. The effects of water and N addition on aboveground and belowground growth and biomass allocation and water- and nitrogen-use efficiency (WUE and NUE) of Stipa grandis, Agropyron cristatum and Cleistogenes squarrosa from non-degraded, moderately-degraded and heavily-degraded grasslands, respectively, were compared. Stipa grandis had higher specific root length and WUE than C. squarrosa, while C. squarrosa had higher NUE than S. grandis in waterand N-limited conditions. Responses of A. cristatum were intermediate between those of S. grandis and C. squarrosa. Water and N addition did not have a significant effect on growth and biomass allocation of S. grandis, but it increased growth and leaf biomass allocation of A. cristatum and growth and stem biomass allocation of C. squarrosa. The three species differ in WUE, NUE, biomass allocation and responses to water and N addition, and these differences are adaptive to their respective habitats. The degraded grasslands can be restored by an increase in water and N availability such as is expected to occur via climatic change, but S. grandis will not benefit from the increases. (C) 2018 Elsevier B.V. All rights reserved. |
| 资助项目 | National Basic Research Program of China[2015CB150801] ; National Natural Science Foundation of China[41571055] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000447090400135 |
| 源URL | [http://210.72.129.5/handle/321005/123446]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhang, Hongxiang; Gao, Yingzhi |
| 作者单位 | 1.Univ Kentucky, Dept Biol, Lexington, KY 40506 USA 2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Jilin Prov Lab Grassland Farming, Changchun 130102, Jilin, Peoples R China 3.Northeast Normal Univ, Inst Grassland Sci, Changchun 130024, Jilin, Peoples R China 4.Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA 5.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Liaoning, Peoples R China 6.Dambi Dollo Univ, Dept Plant Biol & Biodivers Management, Dambi Dollo 260, Ethiopia |
| 推荐引用方式 GB/T 7714 | Zhang, Hongxiang,Gao, Yingzhi,Tasisa, Buli Yohannis,et al. Divergent responses to water and nitrogen addition of three perennial bunchgrass species from variously degraded typical steppe in Inner Mongolia[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,647:1344-1350. |
| APA | Zhang, Hongxiang.,Gao, Yingzhi.,Tasisa, Buli Yohannis.,Baskin, Jerry M..,Baskin, Carol C..,...&Zhou, Daowei.(2019).Divergent responses to water and nitrogen addition of three perennial bunchgrass species from variously degraded typical steppe in Inner Mongolia.SCIENCE OF THE TOTAL ENVIRONMENT,647,1344-1350. |
| MLA | Zhang, Hongxiang,et al."Divergent responses to water and nitrogen addition of three perennial bunchgrass species from variously degraded typical steppe in Inner Mongolia".SCIENCE OF THE TOTAL ENVIRONMENT 647(2019):1344-1350. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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