干旱区生态环境知识资源中心(Arid): Soil and fine roots ecological stoichiometry in different vegetation restoration stages in a karst area, southwest China

Arid

DOI	10.1016/j.jenvman.2019.109694
	Soil and fine roots ecological stoichiometry in different vegetation restoration stages in a karst area, southwest China
	Su, Liang 1,2,3,5; Du, Hu 2,3; Zeng, Fuping 2,3; Peng, Wanxia 2,3; Rizwan, Muhammad 5; Nunez-Delgado, Avelino 6; Zhou, Yaoyu 4; Song, Tongqing 2,3; Wang, Hua 1
通讯作者	Song, Tongqing ; Wang, Hua
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2019
卷号	252
英文摘要	The cyclic process of carbon (C), nitrogen (N), and phosphorus (P) elements is an important factor affecting the function of the forest ecosystem. However, the relation between soil and root stoichiometric ratios, especially in karst areas with extremely fragile geology and intensive human disturbance has rarely been investigated. In the current study the concentrations of C, N, and P and their stoichiometric characteristics were investigated using sequential soil coring under different stages of vegetation restoration (primary forest, secondary forest, shrubland and grassland) and soil layer (0-10 cm, 10-20 cm, 20-30 cm) in fine root and soil samples. The results showed that total C concentration had no significant change in all four vegetation types and three soils layer in the fine root, whereas total N and P concentration reached the maximum value in secondary forest and the minimum in grassland. In addition, soil organic C (SOC) and total N increased continuously with natural succession and decreased with soil depth. Secondary forest showed the largest total P concentration in soil, with the smallest corresponding to grassland. Furthermore, both vegetation type and soil layer significantly affected soil C, N, and P stoichiometric ratios. There was a positive correlation among C, N and P in the fine roots, as well as in the soil. While fine root C:N and C:P ratios were negatively related to soil C:N and C:P, fine root N:P was significantly related to soil N:P. This study can provide a scientific basis for the restoration of fragile ecosystem vegetation and for comprehensive treatment of rocky desertification in karst.
英文关键词	Carbon Nitrogen Phosphorus Vegetation type Soil layer Karst ecosystem
类型	Article
语种	英语
国家	Peoples R China ; Spain
收录类别	SCI-E
WOS记录号	WOS:000496035000045
WOS关键词	LAND-USE ; ORGANIC-CARBON ; TERRESTRIAL ECOSYSTEMS ; CNP STOICHIOMETRY ; P STOICHIOMETRY ; TOTAL NITROGEN ; FOREST GROWTH ; NUTRIENT-USE ; PLANT ; BIOMASS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311742
作者单位	1.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China; 2.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China; 3.Chinese Acad Sci, Huanjiang Observat & Res Stn Karst Ecosyst, Huanjiang 547100, Guangxi, Peoples R China; 4.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China; 5.Huazhong Agr Univ, Coll Resources & Environm, Microelement Res Ctr, Wuhan 430070, Hubei, Peoples R China; 6.Univ Santiago de Compostela, Engn Polytech Sch, Dept Soil Sci & Agr Chem, Campus Univ, Lugo 27002, Spain
推荐引用方式 GB/T 7714	Su, Liang,Du, Hu,Zeng, Fuping,et al. Soil and fine roots ecological stoichiometry in different vegetation restoration stages in a karst area, southwest China[J],2019,252.
APA	Su, Liang.,Du, Hu.,Zeng, Fuping.,Peng, Wanxia.,Rizwan, Muhammad.,...&Wang, Hua.(2019).Soil and fine roots ecological stoichiometry in different vegetation restoration stages in a karst area, southwest China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,252.
MLA	Su, Liang,et al."Soil and fine roots ecological stoichiometry in different vegetation restoration stages in a karst area, southwest China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 252(2019).