Resource Reallocation of Two Grass Species During Regrowth After Defoliation
文献类型：期刊论文
| 作者 | Liu, Yanshu1; Yang, Xiaohui1; Tian, Dashuan2; Cong, Richun1; Zhang, Xiao1; Pan, Qingmin3; Shi, Zhongjie1 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2018-12-05 |
| 卷号 | 9页码:11 |
| 关键词 | biomass allocation grazing carbohydrates protein grassland management |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2018.01767 |
| 通讯作者 | Pan, Qingmin(pqm@ibcas.ac.cn) ; Shi, Zhongjie(shizj@caf.ac.cn) |
| 英文摘要 | Defoliation is widely used for grassland management. Our understanding of how grass species adjust their regrowth and regain balance after defoliation remains limited. In the present study, we examined the regrowth processes of two dominant species after defoliation in grasslands in Inner Mongolia. Our results showed that the aboveground biomass and total biomass of both species significantly decreased and did not completely recover to the control level after 30 days of regrowth. The leaf mass ratio of Leymus chinensis reached the control level at 15 days, but that of Stipa grandis did not recover to the control level. The root mass ratio of these species reached the same levels as that of the control plants within 10 days after defoliation. As indicated by the dynamics of water-soluble carbohydrates (WSCs), protein, and biomass-based shoot: root ratios, both species regained balances of WSCs and protein between above-and below-ground organs at day 10 after defoliation; however, the biomass regained balance 15 days after defoliation. We deduced that the biomass-based shoot:root ratio was regulated by the WSCs and protein concentrations. In conclusion, following defoliation, both grass species first restore their nutrient-based balance between above-and below-ground parts and then regain biomass balance. |
| WOS关键词 | SOLUBLE CARBOHYDRATE RESERVES ; BROMUS-WILLDENOWII KUNTH ; RYEGRASS LOLIUM-PERENNE ; LEYMUS-CHINENSIS ; WHITE CLOVER ; NITROGEN ; GROWTH ; ROOT ; RESPONSES ; ALLOCATION |
| 资助项目 | National Key R&D Program of China[2016YFC0500804] ; International Science and Technology Cooperation Program of China[2015DFR31130] ; National Natural Science Foundation of China[31200350] ; National Natural Science Foundation of China[41471029] ; National Natural Science Foundation of China[41271033] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000452113700001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | National Key R&D Program of China ; International Science and Technology Cooperation Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/51562]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Pan, Qingmin; Shi, Zhongjie |
| 作者单位 | 1.Chinese Acad Forestry, Inst Desertificat Studies, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Chinese Acad Sci, Inner Mongolia Res Ctr Prataculture, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yanshu,Yang, Xiaohui,Tian, Dashuan,et al. Resource Reallocation of Two Grass Species During Regrowth After Defoliation[J]. FRONTIERS IN PLANT SCIENCE,2018,9:11. |
| APA | Liu, Yanshu.,Yang, Xiaohui.,Tian, Dashuan.,Cong, Richun.,Zhang, Xiao.,...&Shi, Zhongjie.(2018).Resource Reallocation of Two Grass Species During Regrowth After Defoliation.FRONTIERS IN PLANT SCIENCE,9,11. |
| MLA | Liu, Yanshu,et al."Resource Reallocation of Two Grass Species During Regrowth After Defoliation".FRONTIERS IN PLANT SCIENCE 9(2018):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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