干旱区生态环境知识资源中心(Arid): Delta C-13 VALUES OF SOIL ORGANIC CARBON AND THEIR RESPONSES TO C-3 AND C-4 PLANTS SHIFT IN MENGZI KARST GRABEN BASIN, SW CHINA

Arid

DOI	10.3986/ac.v49i1.7400
	Delta C-13 VALUES OF SOIL ORGANIC CARBON AND THEIR RESPONSES TO C-3 AND C-4 PLANTS SHIFT IN MENGZI KARST GRABEN BASIN, SW CHINA
	Yang, Hui; Zhu, Tongbin; Garousi, Farzaneh; Li, Qiang; Cao, Jianhua
通讯作者	Cao, JH (corresponding author), CAGS, Key Lab Karst Dynam, Minist Nat Resource & Guangxi, Inst Karst Geol, Guilin 541004, Peoples R China. ; Cao, JH (corresponding author), UNESCO, Int Res Ctr Karst, Guilin 541004, Peoples R China.
来源期刊	ACTA CARSOLOGICA
ISSN	0583-6050
EISSN	1580-2612
出版年	2020
卷号	49 期号:1 页码:110-119
英文摘要	Understanding the controlling factors of soil organic carbon isotope (delta C-13(SOC)) change and the vegetation succession process is crucial to guide ecological restoration and agricultural cultivation in karst rocky desertification region. However, the information about the combination of C-3 and C-4 plant distribution and rocky desertification remains unknown. Soils from different landforms, including basin, slope, and plateau, were sampled to investigate the spatial variance of the delta C-13(SOC) distribution characteristics. The contribution of C-3 and C-4 plant species for delta C-13(SOC) under the different rocky desertification grades (LRD: light rocky desertification; MRD: moderate rocky desertification; and SRD: severe rocky desertification) in Mengzi karst graben basin of Southwest (SW) China was also discussed. The delta C-13(SOC), value decreased with the increase of altitude from basin, slope to plateau. At the same landform, different rocky desertification grades had no significant effect on the delta C-13(SOC) in slope and plateau. Nevertheless, there were significant differences of delta C-13(SOC). between LRD and SRD in basin. The C-4 plants account for more than 70% in the basin and slope, while C, plants account for more than 70% in the plateau. This may be due to the long-term cultivation of corn in the historical period in the basin and slope. However, the plateau area is not suitable for the growth of C-4 plants such as corn due to cold climate. In addition, in the same landform, with the aggravation of rocky desertification, the proportion of C-4 plants for delta C-13(SOC) increased with the proportion of C-3 plants decreased. With the aggravation of rocky desertification, the composition of vegetation species changed from arbor (C-3 plants) to small shrubs and herbs (C-4 plants).
英文关键词	stable carbon isotope rocky desertification C-3 and C-4 plants karst graben basin
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000603359100008
WOS关键词	ISOTOPIC COMPOSITION ; VEGETATION CHANGE ; MATTER ; RATIOS ; DIVERSITY ; DYNAMICS ; GRASSES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348678
作者单位	[Yang, Hui; Zhu, Tongbin; Garousi, Farzaneh; Li, Qiang; Cao, Jianhua] CAGS, Key Lab Karst Dynam, Minist Nat Resource & Guangxi, Inst Karst Geol, Guilin 541004, Peoples R China; [Yang, Hui; Zhu, Tongbin; Garousi, Farzaneh; Li, Qiang; Cao, Jianhua] UNESCO, Int Res Ctr Karst, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hui,Zhu, Tongbin,Garousi, Farzaneh,et al. Delta C-13 VALUES OF SOIL ORGANIC CARBON AND THEIR RESPONSES TO C-3 AND C-4 PLANTS SHIFT IN MENGZI KARST GRABEN BASIN, SW CHINA[J],2020,49(1):110-119.
APA	Yang, Hui,Zhu, Tongbin,Garousi, Farzaneh,Li, Qiang,&Cao, Jianhua.(2020).Delta C-13 VALUES OF SOIL ORGANIC CARBON AND THEIR RESPONSES TO C-3 AND C-4 PLANTS SHIFT IN MENGZI KARST GRABEN BASIN, SW CHINA.ACTA CARSOLOGICA,49(1),110-119.
MLA	Yang, Hui,et al."Delta C-13 VALUES OF SOIL ORGANIC CARBON AND THEIR RESPONSES TO C-3 AND C-4 PLANTS SHIFT IN MENGZI KARST GRABEN BASIN, SW CHINA".ACTA CARSOLOGICA 49.1(2020):110-119.