干旱区生态环境知识资源中心(Arid): Correlations between plant and soil for their C, N, P contents and stoichiometry on the steep gully slopes

Arid

DOI	10.1016/j.ecolind.2023.110545
	Correlations between plant and soil for their C, N, P contents and stoichiometry on the steep gully slopes
	Wang, Lili; Zhang, Guanghui; Zhu, Pingzong; Wang, Ziguan
通讯作者	Zhang, GH
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2023
卷号	154
英文摘要	Steep gully slope is the primary geomorphic composition on the Loess Plateau with serious soil erosion. The impact of plant (leaf, litter and root) on soil nutrients and their stoichiometric characteristics, and the correlations between them are not yet fully understood on steep gully slopes. This study was conducted to identify the correlations of carbon (C), nitrogen (N), phosphorus (P) contents and their stoichiometry between soil, and leaf, litter and root under typical plant communities on Chinese Loess Plateau's steep gully slopes. Total six communities (two shrubs and four grasses) and one farmland planted with Zea mays (control) were tested. Within the selected quadrat (shrub of 2 m x 2 m, grass of 1 m x 1 m), the fresh and mature leaves were firstly taken in different positions of the plant, and then all the surface litters were gathered. Root and soil were taken from the 0-120 cm depth, which was divided into seven soil layers (0-10, 10-20, 20-30, 30-40, 40-60, 60-80 and 80-120 cm). Our results revealed that significant differences were detected in C, N, P contents and stoichiometry of plant (leaf, litter and root) and soil among most of plant communities. For various plant communities, shrub communities had higher contents of C, N and P in leaves, litter and roots. Soil organic carbon and total nitrogen contents declined with soil depth by 61% to 87% and 45% to 77%, respectively. Total contents of soil P and root C, N, P varied irregularly along with soil. It was proved that shrub communities were relatively P-deficient, while farmland and grass communities were N-limited. Besides, partial N and P nutrients were released to soil from litter on steep gully slopes. Significant correlations between soil C, N, P contents and that of the root and litter were examined. Furthermore, the correlations became more significant when C, N and P nutrients of root and litter were quantified by their storages. This study offers a deep understanding of the interactions between soil and plant nutrients, which is conducive to future ecological environment management and improvement in the semi-arid region.
英文关键词	Ecological stoichiometry Nutrient elements Vegetation restoration Gully slopes Semi-arid region
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:001037265400001
WOS关键词	LOESS PLATEAU ; CNP STOICHIOMETRY ; PHOSPHORUS STOICHIOMETRY ; ECOLOGICAL STOICHIOMETRY ; ORGANIC-MATTER ; LAND-USE ; NITROGEN ; CARBON ; LITTER ; REVEGETATION
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395957
推荐引用方式 GB/T 7714	Wang, Lili,Zhang, Guanghui,Zhu, Pingzong,et al. Correlations between plant and soil for their C, N, P contents and stoichiometry on the steep gully slopes[J],2023,154.
APA	Wang, Lili,Zhang, Guanghui,Zhu, Pingzong,&Wang, Ziguan.(2023).Correlations between plant and soil for their C, N, P contents and stoichiometry on the steep gully slopes.ECOLOGICAL INDICATORS,154.
MLA	Wang, Lili,et al."Correlations between plant and soil for their C, N, P contents and stoichiometry on the steep gully slopes".ECOLOGICAL INDICATORS 154(2023).