scholarly journals Evolutionary Characteristics and Trade-Offs’ Development of Social–Ecological Production Landscapes in the Loess Plateau Region from a Resilience Point of View: A Case Study in Mizhi County, China

Author(s):  
Hang Zhang ◽  
Hai Chen ◽  
Tianwei Geng ◽  
Di Liu ◽  
Qinqin Shi

Social-ecological production landscape resilience (SELPR) is a significant representation of the continuous supply capacity of landscape services. It is a quantitative assessment of the spatial-temporal evolution of SELPR under internal and external disturbances that provides a scientific basis for regional ecological environments and socio–economic development. Taking Mizhi County for the study of the Loess Plateau region, a three-dimensional (social system, ecosystem, and production system) SELPR evaluation framework was constructed. Data integration was performed using the watershed as the evaluation unit. This study quantitatively evaluated the spatial–temporal differentiation of the social–ecological production landscape (SELPs) subsystem’s resilience and the total SELPR in the study area and classified the areas from the three-system resilience combination level to achieve regional development trade-offs. The results were as follows: (1) In 2009–2018, the change in the social–ecological production landscapes pattern in Mizhi County showed a significant reduction in agricultural production landscapes, relatively stable social living landscapes, and an increase in ecological landscapes; (2) in 2009–2018, the SELPR increased by 12.38%. The spatial distribution of resilience was significantly different, showing a distribution pattern of high central and low surrounding areas; (3) the county’s watershed development zones were divided into five partitions: synergistic promotion areas, ecological restoration areas, social development areas, production optimization areas, and comprehensive remediation areas. The five types of zones have a certain agglomeration effect. In addition, the main obstacle factors affecting the SELPR of each zone are quite different. The key issues and development directions of different types of watersheds are also proposed in this paper.

2021 ◽  
Vol 49 ◽  
pp. 101295
Author(s):  
Xiaobin Dong ◽  
Xiaowan Wang ◽  
Hejie Wei ◽  
Bojie Fu ◽  
Jijun Wang ◽  
...  

CATENA ◽  
2014 ◽  
Vol 121 ◽  
pp. 22-30 ◽  
Author(s):  
Wen-Feng Tan ◽  
Rui Zhang ◽  
Hua Cao ◽  
Chuan-Qin Huang ◽  
Qin-Ke Yang ◽  
...  

2012 ◽  
Vol 92-93 ◽  
pp. 138-147 ◽  
Author(s):  
Qi-xiang Wang ◽  
Xiao-hui Fan ◽  
Zuo-dong Qin ◽  
Meng-ben Wang

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2614 ◽  
Author(s):  
Enhao Chang ◽  
Peng Li ◽  
Zhanbin Li ◽  
Yuanyi Su ◽  
Yi Zhang ◽  
...  

Slope vegetation restoration is known to influence erosion in the Loess Plateau region in China. The ability of vegetation to mitigate soil erosion under extreme runoff, however, has not been studied in great detail in this region. Here, we examine five typical vegetation communities in the Loess Plateau region that originated from restoration efforts enacted at different times (1, 11, 15, 25, and 40 years). Water scouring experiments were carried out to monitor vegetation community succession and its effects on erosion. These results indicate that the sum of plant importance values increased from 260.72 to 283.06, species density increased from 2.5 to 4.5 per m2, and the amount of litter and humus increased from 24.50 to 605.00 g/m2 during the 1 to 40 years of vegetation community succession. Root biomass and root diameter reached a maximum of approximately 10.80 mg·cm−3 and 0.65 mm at 40 years of recovery. Slope runoff velocity decreased by 47.89% while runoff resistance increased by 35.30 times. The runoff power decreased by 19.75%, the total runoff volume decreased by 2.52 times, and the total sediment yield decreased by 11.60 times in the vegetation community. Slope runoff velocity and power had the largest correlation with aboveground vegetation (0.76, 0.74), total runoff had the largest correlation with underground roots (0.74), and runoff resistance was most strongly correlated with soil structure (0.71). Studies have shown that the succession of vegetation communities can enhance the aboveground ecological functions of plants, thereby significantly reducing the runoff velocity and power. The development of plant root system significantly reduces the runoff volume; the improved soil structure significantly increased the runoff resistance coefficient.


资源科学 ◽  
2020 ◽  
Vol 42 (1) ◽  
pp. 96-103
Author(s):  
Shuai WANG ◽  
Bojie FU ◽  
Xutong WU ◽  
Yaping WANG ◽  

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