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

	Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China
	Xiang Yanling; Wang Zhongke; Lyu Xinhua; He Yaling; Li Yuxia; Zhuang Li; Zhao Wenqin
来源期刊	Journal of Arid Land
ISSN	1674-6767
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
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:6751667
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336307
作者单位	Xiang Yanling, College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China.; Wang Zhongke, College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China.; Lyu Xinhua, College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China.; Li Yuxia, College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China.; Zhuang Li, College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China.; Zhao Wenqin, College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China.; He Yaling, School of Medicine, Shihezi University, Shihezi, Xinjiang 832003, 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.