Long-Term Effects of Natural Enclosure: Carbon Stocks, Sequestration Rates and Potential for Grassland Ecosystems in the Loess Plateau

2013 ◽  
Vol 42 (5) ◽  
pp. 617-625 ◽  
Author(s):  
Lei Deng ◽  
Sandra Sweeney ◽  
Zhouping Shangguan
2020 ◽  
Vol 13 (1) ◽  
pp. 213
Author(s):  
Jing Liu ◽  
Xue Yang ◽  
Hossein Ghanizadeh ◽  
Qian Guo ◽  
Yongming Fan ◽  
...  

Fertilization and grazing are two common anthropogenic disturbances that can lead to unprecedented changes in biodiversity and ecological stability of grassland ecosystems. A few studies, however, have explored the effects of fertilization and grazing on community stability and the underlying mechanisms. We conducted a six-year field experiment to assess the influence of nitrogen (N) fertilization and grazing on the community stability in a long-term enclosure and grazing grassland ecosystems on the Loess Plateau. A structural equation modeling method was used to evaluate how fertilization and grazing altered community stability. Our results indicated that the community stability decreased in the enclosure and grazing grassland ecosystems with the addition of N. The community stability began to decline significantly at 4.68 and 9.36 N g m−2 year−1 for the grazing and enclosure grassland ecosystems, respectively. We also found that the addition of N reduced the community stability through decreasing species richness, but a long-term enclosure can alleviate its negative effect. Overall, species diversity can be a useful predictor of the stability of ecosystems confronted with disturbances. Also, our results showed that long-term enclosure was an effective grassland management practice to ensure community stability on the Loess Plateau of China.


2007 ◽  
Vol 100 (2-3) ◽  
pp. 311-319 ◽  
Author(s):  
Shulan Zhang ◽  
Elisabeth Simelton ◽  
Lars Lövdahl ◽  
Harald Grip ◽  
Deliang Chen

CATENA ◽  
2021 ◽  
Vol 202 ◽  
pp. 105293
Author(s):  
Yang Wu ◽  
WenJing Chen ◽  
Wulan Entemake ◽  
Jie Wang ◽  
HongFei Liu ◽  
...  

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