IGSNRR OpenIR
Resource Reallocation of Two Grass Species During Regrowth After Defoliation
Liu, Yanshu1; Yang, Xiaohui1; Tian, Dashuan2; Cong, Richun1; Zhang, Xiao1; Pan, Qingmin3; Shi, Zhongjie1
2018-12-05
Source PublicationFRONTIERS IN PLANT SCIENCE
ISSN1664-462X
Volume9Pages:11
Corresponding AuthorPan, Qingmin(pqm@ibcas.ac.cn) ; Shi, Zhongjie(shizj@caf.ac.cn)
AbstractDefoliation 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.
Keywordbiomass allocation grazing carbohydrates protein grassland management
DOI10.3389/fpls.2018.01767
WOS KeywordSOLUBLE CARBOHYDRATE RESERVES ; BROMUS-WILLDENOWII KUNTH ; RYEGRASS LOLIUM-PERENNE ; LEYMUS-CHINENSIS ; WHITE CLOVER ; NITROGEN ; GROWTH ; ROOT ; RESPONSES ; ALLOCATION
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Key R&D Program of China ; International Science and Technology Cooperation Program of China ; National Natural Science Foundation of China
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000452113700001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/51563
Collection中国科学院地理科学与资源研究所
Corresponding AuthorPan, Qingmin; Shi, Zhongjie
Affiliation1.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
Recommended Citation
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.
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