scholarly journals Effects of local processes and spatial isolation on freshwater community assembly: a simulation of land-use intensification

Author(s):  
Rodolfo Mei Pelinson
Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 249
Author(s):  
Quanfeng Li ◽  
Zhe Dong ◽  
Guoming Du ◽  
Aizheng Yang

The intensified use of cultivated land is essential for optimizing crop planting practices and protecting food security. This study employed a telecoupling framework to evaluate the cultivated land use intensification rates in typical Chinese villages (village cultivated land use intensifications—VCLUIs). The pressure–state–response (PSR) model organizes the VCLUI indexes including the intensity press, output state, and structural response of cultivated land use. Empirical analysis conducted in Baiquan County, China, indicating that the cultivated land use intensification levels of the whole county were low. However, the intensifications of villages influenced by physical and geographic locations and socioeconomic development levels varied significantly. This paper also found that variations in the VCLUIs were mainly dependent on new labor-driven social subsystem differences. Thus, the expanding per capita farmland scales and increasing numbers of new agricultural business entities were critical in improving the VCLUI. Overall, the theoretical framework proposed in this study was demonstrated to be effective in analyzing interactions among the natural, social, and economic subsystems of the VCLUI. The findings obtained in this study potentially have important implications for future regional food security, natural stability, and agricultural land use sustainability.


2021 ◽  
Vol 30 (5) ◽  
pp. 1056-1069
Author(s):  
Xiaohua Wan ◽  
Xinli Chen ◽  
Zhiqun Huang ◽  
Han Y. H. Chen

Author(s):  
John J. Drewry ◽  
Sam Carrick ◽  
Nicole L. Mesman ◽  
Peter Almond ◽  
Karin Müller ◽  
...  

Limnetica ◽  
2021 ◽  
Vol 40 (2) ◽  
pp. 343-357
Author(s):  
M. Burwood ◽  
J. Clemente ◽  
M. Meerhoff ◽  
C. Iglesias ◽  
G. Goyenola ◽  
...  

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