文献类型: 外文期刊
作者: Leonid, Ubugunov 1 ; Yuriy, Rupyshev 1 ; Vasiliy, Ubugunov 1 ; Hou Xiang-yang 2 ; Oxana, Vishnyakova 1 ; Irina, Lav 1 ;
作者机构: 1.Russian Acad Sci, Siberian Branch, Inst Gen & Expt Biol, Ulan Ude 670047, Russia
2.Chinese Acad Agr Sci, Grassland Res Inst, Hohhot 010010, Peoples R China
关键词: steppe;productivity;climate;grazing;transformation;Baikal region
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2014 年 13 卷 6 期
页码:
收录情况: SCI
摘要: Spatial and structural characteristics of plant communities in the steppe ecosystems of the Baikal region, Russian Federation have been researched in connection with climate change and grazing. The present study, based on a total of 15 typical steppe sampling plots, investigated above-ground biomass (AGB), below-ground biomass (BGB), total biomass (TB) and root:shoot ratios (R:S) and their relationships with climatic factors and grazing. All biomass components varied widely depending on the climatic parameters and the degree of grazing affected transformation. A strong negative correlation between mean annual temperature (MAT) and total plant biomass was revealed for all study area. Mean annual precipitation (MAP) significantly affected communities productivity increasing only in the south of the region. Due to the large and mountainous territory, the influence of latitude and elevation (mountain) factors on the components of the biomass were studied. Although all studied plant steppe communities were transformed by uncontrolled grazing, their productivity is significantly reduced only at plots with maximum digression. Vegetation shift is an indicator of climate change, as well as providing a diagnostic tool to build predictive models. Based on the complex index of effective precipitation, it was revealed that at the end of last century in the steppes of the Baikal region the structural and production processes will be affected by an arid climate trend.
- 相关文献
作者其他论文 更多>>
-
蒙饲燕2号燕麦草选育报告
作者:TIAN Qing-song;田青松;YU Dong-yang;于东洋;ZHANG Rui-xia;张瑞霞;HOU Xiang-yang;候向阳
关键词:燕麦草;品种选育;农艺性状;牧草产量
-
Latitudinal variation in reproductive performance of Leymus chinensis: implications for its response to future climate warming
作者:Zhang, Bo;Ma, Hui-Ling;Fang, Qiang-En;Hua, Li-Min;Jiang, Jie;Shi, Shang-Li;Zhang, De-Gang;Zhao, Gui-Qin;Zhang, Bo;Ma, Hui-Ling;Fang, Qiang-En;Hua, Li-Min;Jiang, Jie;Shi, Shang-Li;Zhang, De-Gang;Zhao, Gui-Qin;Chen, Hai-Jun;Hou, Xiang-Yang;Han, Wen-Jun;Oxana, Vishnyakova;Leonid, Ubugunov
关键词:Adaptation; climate change; grassland; latitudinal gradient; migration; reproduction; reproductive allocation
-
Effects of neutral salt and alkali on ion distributions in the roots, shoots, and leaves of two alfalfa cultivars with differing degrees of salt tolerance
作者:Wang Xiao-shan;Ren Hai-long;Wei Zen-wu;Ren Wei-bo;Wang Yun-wen
关键词:alfalfa;ion distribution;neutral salts;alkali;stress
-
Linking nutrient strategies with plant size along a grazing gradient: Evidence from Leymus chinensis in a natural pasture
作者:Li Xi-liang;Liu Zhi-ying;Ren Wei-bo;Ding Yong;Ji Lei;Guo Feng-hui;Hou Xiang-yang
关键词:meadow steppe;nutrient-use strategy;overgrazing;stoichiometry;Inner Mongolia;Leymus chinensis
-
北方草原区气候变化影响与适应研究进展
作者:HOU Xiang-yang;侯向阳;Sarula;萨茹拉;DING Yong
关键词:北方草原;气候变化;脆弱性;心理载畜率
-
不同退化演替阶段高寒草甸土壤持水特性的初步研究
作者:FAN Yue-jun;范月君;HOU Xiang-yang;侯向阳;ZHAO De-ping;赵得萍
关键词:高寒草甸;土壤持水性;孔隙度;入渗速率
-
生态环境视角下草原丝绸之路在“一带一路”经济带中发展作用与战略需求
作者:LI Yuan-heng;李元恒;HOU Xiang-yang;侯向阳;DAI Ya-ting;戴雅婷;BAI Hai-hua;白海花;ZHANG Yong
关键词:丝绸之路经济带;一带一路战略;可持续发展;生态环境



