干旱区生态环境知识资源中心(Arid): Diurnal dynamics of soil respiration and the influencing factors for three land-cover types in the hinterland of the Taklimakan Desert, China

Arid

	Diurnal dynamics of soil respiration and the influencing factors for three land-cover types in the hinterland of the Taklimakan Desert, China
	Yang Fan; Ali Mamtimin; Zheng Xinqian; He Qing; Yang Xinghua; Huo Wen; Liang Fengchao; Wang Shaoming
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2017
卷号	9 期号:4 页码:568-579
英文摘要	Knowledge of soil respiration and the influencing factors in desert ecosystems is essential to understanding carbon dynamics and responses of biotic and abiotic processes in soils to climate change. In this study, soil respiration rate (Rs) for three land-cover types (shifting sandy land, sandy land with straw checkerboard barriers, and shelter forest land) in the hinterland of the Taklimakan Desert was measured in May 2015 using an automated soil CO_2 flux system. The effects of soil temperature (T_s) and soil water content (Ws) on R_s were also analyzed. The results showed that R_s values in shifting sandy land, sandy land with straw checkerboard barriers, and shelter forest land were all low and exhibited obvious diurnal fluctuations. The establishment of straw checkerboard barriers in sandy land had no significant effect on R_s, while the establishment of shelterbelts significantly increased R_s. Shifting sandy land and sandy land with straw checkerboard barriers were carbon sinks at night and early morning and were carbon sources in the daytime, while shelter forest land always acted as a carbon source during the whole day. The synergistic effect of T_s and W_s could better explain the diurnal dynamics in R_s than single factor. In shifting sandy land and sandy land with straw checkerboard barriers, W_s was identified as a limiting factor influencing the diurnal dynamics of R_s. Furthermore, a relatively strong hysteresis loop existed between R_s and T_s. In contrast, in shelter forest land, R_s was significantly influenced by T_s, and a relatively weaker hysteresis loop existed between R_s and W_s.
英文关键词	soil respiration soil temperature soil water content hysteresis effect Taklimakan Desert
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:6020593
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335831
作者单位	Yang Fan, Institute of Desert Meteorology, China Meteorological Administration, Urumqi, Xinjiang 830002, China.; Ali Mamtimin, Institute of Desert Meteorology, China Meteorological Administration, Urumqi, Xinjiang 830002, China.; He Qing, Institute of Desert Meteorology, China Meteorological Administration, Urumqi, Xinjiang 830002, China.; Yang Xinghua, Institute of Desert Meteorology, China Meteorological Administration, Urumqi, Xinjiang 830002, China.; Huo Wen, Institute of Desert Meteorology, China Meteorological Administration, Urumqi, Xinjiang 830002, China.; Zheng Xinqian, Xinjiang Agro-Meteorological Observatory, Urumqi, Xinjiang 830002, China.; Liang Fengchao, Xinjiang Climate Center, Urumqi, Xinjiang 830002, China.; Wang Shaoming, Forestry Bureau of Bailongjiang, Lanzhou, Gansu 730050, China.
推荐引用方式 GB/T 7714	Yang Fan,Ali Mamtimin,Zheng Xinqian,et al. Diurnal dynamics of soil respiration and the influencing factors for three land-cover types in the hinterland of the Taklimakan Desert, China[J],2017,9(4):568-579.
APA	Yang Fan.,Ali Mamtimin.,Zheng Xinqian.,He Qing.,Yang Xinghua.,...&Wang Shaoming.(2017).Diurnal dynamics of soil respiration and the influencing factors for three land-cover types in the hinterland of the Taklimakan Desert, China.Journal of Arid Land,9(4),568-579.
MLA	Yang Fan,et al."Diurnal dynamics of soil respiration and the influencing factors for three land-cover types in the hinterland of the Taklimakan Desert, China".Journal of Arid Land 9.4(2017):568-579.