Effects of grazing exclusion on carbon sequestration and the associated vegetation and soil characteristics at a semi-arid desertified sandy site in Inner Mongolia, northern China

2012 ◽  
Vol 92 (6) ◽  
pp. 807-819 ◽  
Author(s):  
Yuqiang Li ◽  
Xueyong Zhao ◽  
Yinping Chen ◽  
Yongqing Luo ◽  
Shaokun Wang
Keyword(s):  
Carbon Sequestration ◽  
Inner Mongolia ◽  
Northern China ◽  
Soil Characteristics ◽  
Grazing Exclusion ◽  
Semi Arid

scholarly journals The interactive effects of mowing and N addition did not weaken soil net N mineralization rates in semi-arid grassland of Northern China

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yükun Luo ◽  
Changhui Wang ◽  
Yan Shen ◽  
Wei Sun ◽  
Kuanhu Dong
Keyword(s):  
Inner Mongolia ◽  
N Mineralization ◽  
Microbial Respiration ◽  
Northern China ◽  
Metabolic Quotient ◽  
Net N Mineralization ◽  
Mineralization Rate ◽  
N Addition ◽  
N Transformation ◽  
Semi Arid

Abstract As the largest portion of the terrestrial ecosystems, the arid and semi-arid grassland ecosystem is relatively sensitive and vulnerable to nitrogen (N) deposition. Mowing, the main management in Inner Mongolia grassland also has deep direct and indirect effect on N transformation by removing the nutrient from soils. However, the interaction effect of N addition and mowing on N transformation is still unclear, especially in semi-arid grassland. Here, we conducted a field-manipulated experiment to assess N addition (10 g N m−2 y−1) and mowing (in the middle of August) effects on soil net N mineralization rate across 4 growing seasons (2006–2009) in a semi-arid grassland in Inner Mongolia of northern China. We found that N addition with or without mowing led to significant effect on soil ammonification rate and net N mineralization rate, but had no significant effect on nitrification rates. Furthermore, mowing had no significant effect on soil net N mineralization, ammonification and nitrification rates. N addition and Mowing decreased microbial respiration and metabolic quotient, whereas the interaction of N addition and mowing had no significant effect on microbial respiration and metabolic quotient. Our results indicated that the effects of mowing and N addition did not interactively weaken soil net N mineralization rates in a semi-arid grassland of Northern China. Therefore, the anthropic management (i.e. mowing for hay once a year) with N addition may be a sustainable approach for restoration and reconstruction of vegetation in the abandoned grassland  of Northern China.

Study on Grassland Environment Capacity of Damao County Inner Mongolia

2012 ◽  
Vol 209-211 ◽  
pp. 1147-1151
Author(s):  
Dan Shan ◽  
Jing Li He ◽  
Yan Ping Liu ◽  
Tie Jun Liu
Keyword(s):  
Inner Mongolia ◽  
Animal Husbandry ◽  
Northern China ◽  
Well Being ◽  
Arid Area ◽  
Ecosystem Stability ◽  
Balance Of Nature ◽  
Environment Capacity ◽  
Ecosystem Indicators ◽  
Semi Arid

The environment capacity is not only importance to maintain the balance of nature, but also influence the socio-economic development well being in grassland regions. Take the case of Damao County in Baotou City Inner Mongolia located on the arid and semi-arid area in northern China and a fragile ecosystem, indicators system of grassland environment capacity are constructed and then analyzed the grassland environment capacity quantitatively. The result shows that the grassland environment capacity is an allowable state in 1992 and 2000, but it is an overloading state in 2009, so natural resources on the grassland has not support the demand of regional economic and social development based mainly on animal husbandry in Damao County, applying some effective measures to protect grassland and maintain ecosystem stability.

scholarly journals Bacterial Succession Pattern during the Fermentation Process in Whole-Plant Corn Silage Processed in Different Geographical Areas of Northern China

Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 900
Author(s):  
Chao Wang ◽  
Hongyan Han ◽  
Lin Sun ◽  
Na Na ◽  
Haiwen Xu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Bacterial Community ◽  
Inner Mongolia ◽  
Northern China ◽  
Ammonia Nitrogen ◽  
Corn Silage ◽  
Shanxi Province ◽  
Whole Plant ◽  
Bacterial Succession ◽  
Fermentation Quality

Whole-plant corn silage is a predominant forage for livestock that is processed in Heilongjiang province (Daqing city and Longjiang county), Inner Mongolia Autonomous Region (Helin county and Tumet Left Banner) and Shanxi province (Taigu and Shanyin counties) of North China; it was sampled at 0, 5, 14, 45 and 90 days after ensiling. Bacterial community and fermentation quality were analysed. During fermentation, the pH was reduced to below 4.0, lactic acid increased to above 73 g/kg DM (p < 0.05) and Lactobacillus dominated the bacterial community and had a reducing abundance after 14 days. In the final silages, butyric acid was not detected, and the contents of acetic acid and ammonia nitrogen were below 35 g/kg DM and 100 g/kg total nitrogen, respectively. Compared with silages from Heilongjiang and Inner Mongolia, silages from Shanxi contained less Lactobacillus and more Leuconostoc (p < 0.05), and had a separating bacterial community from 14 to 90 days. Lactobacillus was negatively correlated with pH in all the silages (p < 0.05), and positively correlated with lactic and acetic acid in silages from Heilongjiang and Inner Mongolia (p < 0.05). The results show that the final silages had satisfactory fermentation quality. During the ensilage process, silages from Heilongjiang and Inner Mongolia had similar bacterial-succession patterns; the activity of Lactobacillus formed and maintained good fermentation quality in whole-plant corn silage.

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