干旱区生态环境知识资源中心(Arid): Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China

Arid

DOI	10.1007/s40333-020-0015-8
	Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China
	Xiang, Yanling 1; Wang, Zhongke 1; Lyu, Xinhua 1; He, Yaling 2; Li, Yuxia 1; Zhuang, Li 1; Zhao, Wenqin 1
通讯作者	Zhao, Wenqin
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2020
卷号	12 期号:3 页码:508-521
英文摘要	Disturbance by rodents alters the morphologies and nutrients of plants as well as the physical-chemical properties of the soils. Changes in plants are considered to be mechanisms of defense against the disturbance by rodents. Rodents gnaw on the assimilating branches of Haloxylon ammodendron (CA Mey.) Bunge and burrow under the bushes in the desert ecosystems of Xinjiang, China. However, eco-physiological responses of different age groups of H. ammodendron to the disturbance by rodents are not well understood. In this study, soil physical-chemical properties under the shrubs and the above-ground morphological, physiological and biochemical features of assimilating branches of H. ammodendron of different age groups (i.e., young, 30-100 cm; middle-aged, 100-200 cm; and mature, >200 cm) in burrowed and non-burrowed (control) areas were studied in 2018. We found that disturbance by rodents significantly increased the crown width and total branching rates of young and middle-aged H. ammodendron. Photosynthetic pigment contents of assimilating branches of H. ammodendron were significantly reduced under the disturbance by rodents. In term of plant nutrients, the main differences among different age groups of H. ammodendron under the disturbance by rodents occurred in the total soluble sugar and reducing sugar contents that decreased in young plants, increased in middle-aged plants, and did not affect in mature plants. Crude protein and phosphorus contents significantly increased, while crude fiber and calcium contents significantly decreased in young plants. Crude fat and calcium contents significantly decreased in middle-aged plants. Soil organic matter (SOM), total nitrogen (TN), available nitrogen (AN) and available potassium (AK) contents in the topsoil (0-20 cm), which are conducive to forming fertile islands, also increased under the disturbance by rodents. In particular, soil AN and AK were the major factors affecting the above-ground morphological characteristics of H. ammodendron in burrowed areas. Overall, the response and defense strategies of H. ammodendron to the disturbance by rodents differed among different age groups, and the effect of the disturbance by rodents on H. ammodendron gradually weakened with the increasing plant age.
英文关键词	age groups morphology assimilating branches soil physical-chemical properties photosynthetic pigments
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000535095300001
WOS关键词	ECOSYSTEM ENGINEERS ; RHOMBOMYS-OPIMUS ; JASMONIC ACID ; HERBIVORY ; PHOTOSYNTHESIS ; DEFENSE ; RESISTANCE ; TOLERANCE ; NITROGEN ; GROWTH
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319152
作者单位	1.Shihezi Univ, Coll Life Sci, Shihezi 832003, Peoples R China; 2.Shihezi Univ, Sch Med, Shihezi 832003, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Yanling,Wang, Zhongke,Lyu, Xinhua,et al. Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China[J],2020,12(3):508-521.
APA	Xiang, Yanling.,Wang, Zhongke.,Lyu, Xinhua.,He, Yaling.,Li, Yuxia.,...&Zhao, Wenqin.(2020).Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China.JOURNAL OF ARID LAND,12(3),508-521.
MLA	Xiang, Yanling,et al."Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China".JOURNAL OF ARID LAND 12.3(2020):508-521.