scholarly journals STUDIES ON THE FATE OF LABELLED NITROGEN APPLIED TO A LEYMUS CHINENSIS COMMUNITY OF TYPICAL STEPPE IN INNER MONGOLIA GRASSLAND

2004 ◽  
Vol 28 (5) ◽  
pp. 665-671
Author(s):  
PAN Qing-Min ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 361
Author(s):  
Zhanyong Fu ◽  
Fei Wang ◽  
Zhaohua Lu ◽  
Meng Zhang ◽  
Lin Zhang ◽  
...  

In this work, we conducted a 1200 km belt transect for field survey in typical and meadow steppes across Inner Mongolia Plateau in 2018. The field investigation, laboratory soil analysis, and quantitative ecology methods were utilized to explore the differentiation characteristics of the plant community, and their relationships with ecological factors. The results showed that a total of 140 vascular plants within 108 quadrats mainly comprised of Asteraceae, Poaceae, Rosaceae, and Fabaceae. Two-way Indicator Species Analysis (TWINSPAN) revealed eight vegetation typologies: I: Stipa sareptana var. krylovii + Dysphania aristata, II: Stipa grandis + Leymus chinensis, III: Stipa sareptana var. krylovii + Leymus chinensis, IV: Stipa grandis + Cleistogenes squarrosa, V: Stipa grandis + Carex duriuscula, VI: Stipa baicalensis + Leymus chinensis, VII: Carex pediformis + Stipa baicalensis, VIII: Leymus chinensis + Elymus dahuricus. Detrend Correspondence Analysis (DCA) confirmed the above eight vegetation typologies and indicated a relatively small variation. Redundancy analysis (RDA) revealed that the spatial differentiation characteristics in the typical steppe were chiefly driven by precipitation, while the influencing factor in the meadow steppe was soil nutrients, followed by temperature and precipitation. The contrast between typical and meadow steppes revealed that the spatial distribution of typical steppe was influenced by precipitation, while the contribution of heat and water in the meadow steppe was equal. The conclusion revealed that the temperature and precipitation conditions coupled with soil nutrients shaped the spatial differentiation characteristics of temperate steppe vegetation in the Inner Mongolia grassland. Therefore, this study advanced our knowledge of the spatial patterns of temperate steppe along longitude and latitude gradients, providing scientific and theoretical guidance for the biodiversity conservation and sustainable ecosystem management of the Inner Mongolia grassland.


PLoS ONE ◽  
2010 ◽  
Vol 5 (8) ◽  
pp. e12125 ◽  
Author(s):  
Wenming Bai ◽  
Fen Xun ◽  
Yang Li ◽  
Wenhao Zhang ◽  
Linghao Li

2013 ◽  
Vol 726-731 ◽  
pp. 3743-3746
Author(s):  
Tian Ming Gao ◽  
Rui Qiang Zhang

In the majority of farming-pastoral areas, Inner Mongolia, grassland slope was reclaimed recent years due to the increase of population. The resulting deterioration of ecological environment problem is becoming more and more serious. In 2012, the effect of reclamation on erosion, vegetation and soil characteristics were researched in Saiwusu of Damao County, Inner Mongolia. Results show: 1. Severe wind erosion in spring, also severe water erosion in summer were on the slopping field. 2. After cultivation, annual herb such as Salsols collina, Corispermum declinatum, Chenopodum aristatum, Artimisia annua et al. grew vigorously, however perennial herb such as Stipa krylovii, Leymus chinensis and Agropyron cristatum were inhibited. 3. Soil nutrient sharp declined due to the erosion and harvest. In short, the grassland which converted to slopping field increases more than 5 times of soil erosion, soil fertility drops 30%, and vegetation changed completely after 1 year; 4 years later, soil fertility drops 50%, vegetation becomes sparse, soil water and fertility is poor, crop yield is low, the slopping field is not fit to continue farming, large abandoned.


2021 ◽  
pp. e01634
Author(s):  
Fengshi Li ◽  
Yongzhi Yan ◽  
Jianing Zhang ◽  
Qing Zhang ◽  
Jianming Niu

2013 ◽  
Vol 807-809 ◽  
pp. 1881-1885
Author(s):  
Chun Mei Zhang ◽  
Min Zhao ◽  
Xue Lv

In this paper, the indexes that are used to assess the influence of road construction on Inner Mongolia grassland have been proposed based on the environment protection perspective. The Analytic hierarchy process was employed to evaluate the importance of different indexes regarding to influence. These indexes would be used to provide information for decision making about road construction in order to achieve the sustainable development of grassland.


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