干旱区生态环境知识资源中心(Arid): Interspecific variation in root penetration abilities of 15 wild plants in the Mongolian steppe

Arid

DOI	10.1016/j.jaridenv.2019.104010
	Interspecific variation in root penetration abilities of 15 wild plants in the Mongolian steppe
	Kinugasa, Toshihiko; Shirakawa, Satoru
通讯作者	Kinugasa, Toshihiko
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2020
卷号	173
英文摘要	Vegetation disturbance and soil compaction by off-road vehicular traffic have been recognised as a serious environmental issue in arid regions. Vegetation recovery following such disturbances may depend on the ability of the plant roots to penetrate into the compacted soil. Here, we evaluated variation in root penetration ability in 15 wild plant species of the Mongolian steppe and analysed its contribution to plant establishment on the compacted soil. We expected that the roots of those species emerging during the early stages of vegetation recovery following soil compaction would exhibit greater penetration ability. Root penetration of each species was tested using wax layers of five different strengths. Root penetration ability (P-50) was determined as the wax strength at which 50% of the individuals could penetrate the wax. P-50 varied greater than three-fold among species and was high in Salsola collina, which is an early-successional species following soil compaction. However, contrary to expectation, the P-50 was low in Artemisia frigida, which is an early-to mid-successional species following soil compaction, and it was highest in Stipa krylovii, which is a late-successional species in the Mongolian steppe. We concluded that the ability of the roots to penetrate a hard medium may not be a critical factor influencing plant establishment on the compacted soil in the field and that root penetration ability may not be an appropriate index for screening plant species suitable for the restoration of vegetation on the compacted soil.
英文关键词	Arid region Root growth Secondary succession Soil compaction Wax layer Wild species
类型	Article
语种	英语
国家	Japan
收录类别	SCI-E
WOS记录号	WOS:000498317600015
WOS关键词	SOIL COMPACTION ; MECHANICAL IMPEDANCE ; ROADS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2020-02-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312797
作者单位	Tottori Univ, Fac Agr, 4-101 Koyama Minami, Tottori 6808553, Japan
推荐引用方式 GB/T 7714	Kinugasa, Toshihiko,Shirakawa, Satoru. Interspecific variation in root penetration abilities of 15 wild plants in the Mongolian steppe[J],2020,173.
APA	Kinugasa, Toshihiko,&Shirakawa, Satoru.(2020).Interspecific variation in root penetration abilities of 15 wild plants in the Mongolian steppe.JOURNAL OF ARID ENVIRONMENTS,173.
MLA	Kinugasa, Toshihiko,et al."Interspecific variation in root penetration abilities of 15 wild plants in the Mongolian steppe".JOURNAL OF ARID ENVIRONMENTS 173(2020).