scholarly journals Carbon sequestration and water yield tradeoffs following restoration of abandoned agricultural lands in Mediterranean mountains

2021 ◽  
pp. 112203
Author(s):  
M. Khorchani ◽  
E. Nadal-Romero ◽  
T. Lasanta ◽  
C. Tague
Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2072
Author(s):  
Ying Fang ◽  
Tianlin Zhai ◽  
Xiaodong Zhao ◽  
Kun Chen ◽  
Baishu Guo ◽  
...  

Ecosystem services are characterized by region and scale, and contribute to human welfare. Taking Yantai city, a typical bay city in China, as the example, its three representative ecosystem services: food supply (FS), carbon sequestration (CS) and water yield (WY) were chosen as study targets. Based on analyzation of six different aspects of the supply and variation characteristic of demand, this study tried to propose advices for comprehensive improvement of ecosystem services for spatial optimization. The results showed that: (1) ecosystem services supply was strong in central and southern areas of Yantai, while the northern coastal areas were relatively weak; (2) synergistic relationships were found of FS-CS, FS-WY and CS-WY both in 2009 and 2015, with the strongest one for FS-WY. Additionally, in the synergistic relationships, each pair of ecosystem services was dominated by one ecosystem service; (3) most of the three pairs of synergistic relationships had the tendency to strengthen with larger scales; (4) four ecosystem demands changing areas were observed and comprehensive improvement suggestions for them were proposed. This work provides a new attempt to improve ecosystem services based on its supply-demand relationship, which will give a baseline reference for related studies in Yantai city, as well as other similar bay cities.


2021 ◽  
Author(s):  
Tiantian Chen ◽  
Li Peng ◽  
Qiang Wang

Abstract The Grain to Green Program (GTGP), as a policy tool for advancing ecological progress, has been operating for 20 years and has played an important role in improving ecosystem service values. However, there are few studies on the trade-off/synergy changes in ecosystem services during the implementation of the GTGP and how to select the optimal scheme for regional ecological security based on the trade-off relationship. Thus, we took the Chengdu-Chongqing urban agglomeration (CCUA) in southwestern China as the study area; we used multisource data and the corresponding models and methods to estimate the regional food production, carbon sequestration, water yield, soil conservation and habitat quality services. Then, we clarified the trade-off/synergy relationships among ecosystem services from 2000 to 2015 by spatial analysis and statistical methods and evaluated the influential mechanism of the GTGP on trade-offs between ecosystem services. Finally, different risk scenarios were constructed by the ordered weighted average algorithm (OWA), and the regional ecological security pattern was simulated under the principle of the best protection efficiency and the highest trade-off degree. We found that (1) the trade-offs/synergies of regional ecosystem services changed significantly from 2000 to 2015. Among them, food production, water yield and soil conservation have always had trade-off relationships, while carbon sequestration, soil conservation and habitat quality have all had synergistic relationships. The relationships between carbon sequestration and water yield and food production changed from non-correlated to trade-off/synergistic, and the relationship between habitat quality and food production and water yield was not obvious. (2) Except for carbon sequestration service, the trade-off intensity between other ecosystem services decreased, indicating that the change trend of ecosystem services in the same direction was obvious. (3) The GTGP has been an important factor affecting the trade-off intensity of regional ecosystem services. On the one hand, it has strengthened the synergistic relationships among carbon sequestration, soil conservation and habitat quality; on the other hand, it has increased the constraints of water resources on soil conservation and vegetation restoration. (4) The decision risk coefficient α = 1.6 was the most suitable scenario, the total amount of regional ecosystem services was high, and the allocation was balanced under this scenario. The ecological security area corresponding to this scenario was also the area with high carbon sequestration and habitat quality services. The purpose of this study was to provide a scientific reference for the precise implementation of the GTGP.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Danardono ◽  
M. Iqbal Taufiqurrahman Sunariya ◽  
Vidya Nahdiyatul Fikriyah ◽  
Munawar Cholil

Abstract The value of terrestrial carbon sequestration in urban areas, due to lack of vegetation as a carbon sink, is rarely studied. In fact, urban areas have high carbon emission values, which must be minimised. On the other hand, the value of carbon sequestration in urban areas is very dynamic due to natural factors from the environment and non-natural factors from anthropogenic activities. The main objectives of this study are to identify the carbon dioxide sequestration in urban areas, especially in tropical climates, and to determine the dynamics of carbon sequestration in urban areas for a year. The results show that carbon sequestration in tropical urban areas has a significant value compared with urban areas in temperate climates. This condition happens because there are still green open spaces in gardens and agricultural lands. The value of carbon sequestration in this tropical urban area experiences monthly dynamics caused by rainfall variation and anthropogenic activities, such as land conversion and plant type conversion in agricultural lands.


Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 843
Author(s):  
Qingxiang Meng ◽  
Likun Zhang ◽  
Hejie Wei ◽  
Enxiang Cai ◽  
Dong Xue ◽  
...  

The continuous supply of ecosystem services is the foundation of the sustainable development of human society. The identification of the supply–demand relationships and risks of ecosystem services is of considerable importance to the management of regional ecosystems and the effective allocation of resources. This paper took the Yihe River Basin as the research area and selected water yield, carbon sequestration, food production, and soil conservation to assess changes in the supply and demand of ecosystem services and their matching status from 2000 to 2018. Risk identification and management zoning were also conducted. Results show the following: (1) The spatial distribution of the four ecosystems service supply and demand in the Yihe River Basin was mismatched. The food production supply levels in the middle and lower reaches and the upstream water yield, carbon sequestration, and soil conservation supply levels were high. However, most of the areas with high demand for ecosystem services were concentrated downstream. (2) From 2000 to 2018, the supply of water yield and carbon sequestration in the Yihe River Basin decreased, while that of food production and soil conservation increased. The demand for the four ecosystem services also increased. (3) Water yield faced considerable supply–demand risks. Fifty percent of the sub-basins were at a high-risk level, and the risk areas were concentrated in the middle and lower reaches. The three remaining services were mainly at low-risk levels. The Yihe River Basin was divided into eight types of supply–demand risk spatial management zones based on the ecosystem service supply and demand levels, which will help promote refined regional ecosystem management and sustainable development. The supply and demand assessment of ecosystem services from a risk perspective can integrate the information of natural ecosystems and socio-economic systems and provide scientific support for watershed spatial management.


2020 ◽  
Vol 27 (18) ◽  
pp. 22461-22475
Author(s):  
Li Zeng ◽  
Jing Li ◽  
Keyu Qin ◽  
Jingya Liu ◽  
Zixiang Zhou ◽  
...  

2021 ◽  
Author(s):  
Sydney Oluoch ◽  
Pankaj Lal ◽  
Bernabas Wolde ◽  
Andres Susaeta ◽  
Josè R Soto ◽  
...  

Abstract Longleaf pine (LLP) (Pinus palustris Mill.) is well known for its role in supporting healthy ecosystems in the southeastern (SE) United States (US). The decline of LLP forest ecosystems has led to a consensus among stakeholders that restoration efforts are needed. However, there is still a lack of robust understanding of the utilization of nonmarket ecosystem services of LLP forests. These challenges have presented major barriers to landowner acceptance of subsidized LLP restoration programs. Understanding the tradeoffs between forest ecosystem services is critical to restoring LLP in the SE US. This study employs the best-worst choice (BWC) method to assess public preferences toward hypothetical LLP restoration programs that consider ecosystem services such as recreation, timber production, carbon sequestration, water yield, and wildlife diversity. We surveyed a representative sample of n = 953 respondents from Alabama, Mississippi, Georgia, and Florida, and results showed that residents in all four states are willing to pay for LLP restoration, with the highest average willingness to pay (WTP) for forest recreation ($20.39), followed by red-cockaded woodpecker (RCW) conservation ($13.37) and carbon sequestration ($13.32). This research provides important public preference information on ecosystem services that is critical in forming sustainable LLP restoration programs. Study Implications This study is useful from a policy assessment perspective for evaluating benefits and costs of LLP restoration programs in the SE US, for informing program design, and understanding tradeoffs between LLP ecosystem services. The public plays an important role in influencing environmental policy choices, including LLP restoration programs.


EDIS ◽  
2009 ◽  
Vol 2009 (1) ◽  
Author(s):  
Solomon G. Haile ◽  
Clyde W. Fraisse ◽  
Vimala D. Nair ◽  
Ramachandran P-K Nair

AE435, an 8-page fact sheet by Solomon G. Haile, Clyde W. Fraisse, Vimala D. Nair, and P.K. Ramachandran Nair, addresses some basic questions regarding the prospects of carbon (C) sequestration in forest and agricultural lands and examines the C sequestration potential of different land management practices that could play a role in GHG mitigation strategies. Includes references. Published by the UF Department of Agricultural and Biological Engineering, September 2008.


2021 ◽  
Author(s):  
Doan Nainggolan ◽  
Johanna Pohjola ◽  
Louise Martinsen ◽  
Steen Gyldenkærne ◽  
Katarina Elofsson ◽  
...  

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