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Du B, Wu L, Ruan B, Xu L, Liu S, Guo Z. Can the best management practices resist the combined effects of climate and land-use changes on non-point source pollution control? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174260. [PMID: 38936719 DOI: 10.1016/j.scitotenv.2024.174260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 06/07/2024] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
Climate and land-use changes have an overlying impact on non-point source (NPS) pollution in river basins. However, the control effect of Best Management Practices (BMPs) for NPS pollution is not yet clear under future scenarios. The Soil and Water Assessment Tool (SWAT) model was coupled with the entropy-weighted method, global climate patterns and land-use data to explore the dynamic variations in total nitrogen (TN) and total phosphorus (TP) loads in the Jing River Basin during the baseline (2000-2020) and future periods (2021-2065), evaluate the pollution reduction effectiveness of individual and combined BMPs, and propose practical BMP configurations. Results indicate that a future trend of urban land expansion, particularly in the economic scenario (LU_SSP585), leads to weakened environmental ecosystems, while the sustainable scenario (LU_SSP126) exhibits more balanced land development. The MIROC-ES2L model demonstrates higher Taylor skill scores, forecasted significant increases in precipitation, maximum, and minimum temperatures under the SSP585 scenario. Spatial heterogeneity in TN and TP loads is notable, showing an upward trajectory in the future. The interaction between land-use and climate change has complex effects on TN and TP loads, with land-use-induced TN changes being relatively small (4.6 %) and TP changes substantial (24.3 %). The spatial distribution, under overlying effects, leans towards the influence of climate change, emphasizing its dominant role in TN and TP load variations. Distinct differences exist in the reduction of NPS pollution loads among different BMPs, with combined BMPs demonstrating superior effectiveness. The environmental-cost effectiveness trends of BMPs remain consistent across various future scenarios. RG (Return agricultural land to grass), RG + TT (Terracing), and RG + FR10 (Fertilizer reduction: 10 %) + GW (Grassed waterway) + FS (Filter strip) + TT emerge as the most effective single, double, and multiple BMP combinations, respectively. The results offer valuable insights for preventing and mitigating future NPS pollution risks, optimizing land-use layouts, and enhancing watershed management decisions.
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Affiliation(s)
- Bailin Du
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lei Wu
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Bingnan Ruan
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Liujia Xu
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shuai Liu
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zongjun Guo
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
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Luo K, Wang H, Yan X, Ma C, Zheng X, Wu J, Wu C. Study on trade-offs and synergies of rural ecosystem services in the Tacheng-Emin Basin, Xinjiang, China: Implications for zoning management of rural ecological functions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 363:121411. [PMID: 38861887 DOI: 10.1016/j.jenvman.2024.121411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 03/03/2024] [Accepted: 06/05/2024] [Indexed: 06/13/2024]
Abstract
Rural areas are the main source of ecosystem services in arid and semi-arid areas, and ecosystem services are the background conditions for rural revitalization. In this study, the spatial pattern of key ecosystem services in the countryside was assessed, and the trade-offs and synergistic relationships among ecosystem services were investigated, using the Tacheng-Emin Basin in China as the study area. Finally, the types of ecological function zoning and development strategies for the countryside are proposed. The results showed that: (1) the area of ecological land was large, and the average land use intensity was 2.48, which belonged to the medium intensity. (2) The mean values of the six ecosystem services are all in the middle and lower classes, and the spatial distribution of the five ecosystem services is similar, except for food production. (3) Except for grain production, the other five ecosystem services showed positive feedback to elevation. The other five ecosystem services are synergistic, and there are trade-offs between grain production and other ecosystem services. In the nonlinear interaction mechanism of ecosystem services, the fluctuation constraint occupies the largest proportion. (4) At smaller spatial scales, there are more types of ecosystem service clusters. Combining the results of the study, the villages in the study area can be categorized into five types. This study formulates five priority levels of rural ecological revitalization and proposes different development recommendations for the sustainable development of each type of village. This study is helpful for the fine management of land resources and the revitalization of rural ecology and provides a reference for the sustainable development of ecosystem services in arid and semi-arid areas.
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Affiliation(s)
- Kui Luo
- College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830017, China
| | - Hongwei Wang
- College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830017, China.
| | - Xiaomei Yan
- College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830017, China
| | - Chen Ma
- School of Geography and Ocean Science, Nanjing University, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, Nanjing 210023, China
| | - Xudong Zheng
- College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830017, China
| | - Jinhua Wu
- College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830017, China
| | - Changrui Wu
- College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China; Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830017, China
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Zhang K, Fang B, Zhang Z, Liu T, Liu K. Exploring future ecosystem service changes and key contributing factors from a "past-future-action" perspective: A case study of the Yellow River Basin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171630. [PMID: 38508260 DOI: 10.1016/j.scitotenv.2024.171630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024]
Abstract
Understanding the impacts of climate change and human activities on ecosystem services (ESs) and taking actions to adapt to and mitigate their negative impacts are of great benefit to sustainable regional development. In this paper, we integrate the System Dynamics Model (SD), the Future Land Use Simulation (FLUS) model, the Integrated Valuation and Trade-offs of ESs (InVEST) model, and the Structural Equation Model (SEM). We select three scenarios, SSP1-1.9, SSP2-4.5, and SSP5-8.5, from the Coupled Model Intercomparison Project 6 (CMIP6) to forecast future changes under these scenarios in the Yellow River Basin (YRB) by 2030. We predict future changes in water yield (WY), carbon storage (CS), soil retention (SR), and habitat quality (HQ) in the YRB. The results show that: (1) Under the SSP1-1.9 scenario, ecological land types such as forests, grasslands, and water bodies are protected and restored to a certain extent; under the SSP2-4.5 scenario, the degree of land spatial development occupies an intermediate state among the three scenarios; and under the SSP5-8.5 scenario, there is an obvious increase in the artificialization of the watershed's land use. (2) Under scenario SSP1-1.9, there is a comprehensive approach to sustainable development that significantly improves all ESs in the watershed, while the SSP5-8.5 and SSP2-4.5 scenarios demonstrate an increase in trade-offs between WY, HQ, and CS, especially in the downstream area. (3) Anthropogenic factors having more significant impacts in the SSP5-8.5 scenario. In this paper, we not only summarize the differences in trade-offs among various ESs but also provide an in-depth analysis of the key factors affecting future ESs, providing new ideas and insights for the sustainable development of ES in the future. In summary, we propose a prioritized development pathway for the future, a reduction of trade-offs between ESs, and an improved capacity to respond to challenges.
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Affiliation(s)
- Kaili Zhang
- School of Geography, Nanjing Normal University, Nanjing 210023, China
| | - Bin Fang
- School of Geography, Nanjing Normal University, Nanjing 210023, China; Research Center of New Urbanization and Land Problem, Nanjing Normal University, Nanjing 210023, China; Jiangsu Provincial Geographic Information Resources Development and Utilization Cooperative Innovation Center, Nanjing 210023, China.
| | - Zhicheng Zhang
- School of Geography, Nanjing Normal University, Nanjing 210023, China
| | - Tan Liu
- School of Economics and Management, Northwest University, Xi'an 710127, China
| | - Kang Liu
- College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
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Wu W, Qiu X, Ou M, Guo J. Optimization of land use planning under multi-objective demand-the case of Changchun City, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:9512-9534. [PMID: 38191724 DOI: 10.1007/s11356-023-31763-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/25/2023] [Indexed: 01/10/2024]
Abstract
Modeling and scenario analysis are the core elements of land use change research, and in the face of the increasingly serious ecological and environmental problems in urbanization, it is important to carry out land use simulation studies under different protection constraints for scientific planning and policy formulation. Taking Changchun City, the capital of Jilin Province, a pilot national eco-province, as an example, a CLUE-S model with coupled landscape ecological security patterns was constructed to predict and simulate the land use structure and layout under multi-objective optimization scenarios in the planning target year (2030), and the results were analyzed based on landscape index evaluation. The study found the following: (i) the proportion of ecological land area under low, medium, and high security levels in the study area was 8.7%, 64.8%, and 26.5%, respectively; (ii) under the current development trend scenario, the trend of increasing fragmentation of cultivated land patches in Changchun in 2030 will remain unchanged, with construction land spreading along the periphery in a compact and continuous pattern, while ecological land will be seriously encroached upon; and (iii) in the 2030 multi-objective optimization scenario, land use patches of all types will begin to show a tendency to cluster, with less landscape fragmentation and more connectivity, while cultivated land and construction land will also begin to converge and do not deteriorate as a result of spatial conflicts over ecological land.
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Affiliation(s)
- Wenjun Wu
- College of Land Management, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xinyi Qiu
- School of Life Sciences, Fudan University, Shanghai, 200438, China
| | - Minghao Ou
- College of Land Management, Nanjing Agricultural University, Nanjing, 210095, China.
- Center of Urban-Coral Joint Development and Land Management Innovation, Nanjing, 210095, China.
- State and Local Joint Engineering Research Center of Rural Land Resources Utilization and Consolidation, Nanjing, 210095, China.
| | - Jie Guo
- College of Land Management, Nanjing Agricultural University, Nanjing, 210095, China
- Center of Urban-Coral Joint Development and Land Management Innovation, Nanjing, 210095, China
- State and Local Joint Engineering Research Center of Rural Land Resources Utilization and Consolidation, Nanjing, 210095, China
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Qin Y, Tang J, Li T, Qi X, Zhang D, Wang S, Lun F. Cultivated Land Demand and Pressure in Southeast Asia from 1961 to 2019: A Comprehensive Study on Food Consumption. Foods 2023; 12:3531. [PMID: 37835182 PMCID: PMC10572194 DOI: 10.3390/foods12193531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Southeast Asia plays a crucial role in global food production and trade, yet it grapples with challenges related to food security, regional stability, and security. Cultivated land is the material foundation for ensuring food production. With the development of society and the economy, people's food consumption has undergone significant changes. This paper employs a comprehensive approach to analyze trends in food consumption, the cultivated land footprint, and associated land pressures in Southeast Asia over the period 1961-2019. The main findings are as follows: (1) Between 1961 and 2019, the total food consumption in Southeast Asia surged by 3.1 times. Notably, the proportion of livestock-based foods increased steadily from 6.62% in 1961 to 16.82% in 2019. (2) Due to advancements in agricultural productivity across Southeast Asia, the cultivated land footprint for food consumption only increased by 0.7 times, showcasing a diminishing demand for grain-cultivated land. (3) On the whole, the pressure of food consumption on cultivated land in Southeast Asia is on the decline, albeit with considerable variations among different countries. The Philippines is facing a relative undersupply, whereas Thailand has experienced the lowest cultivated land pressure. (4) Encouraging a shift towards a Mediterranean-style diet, aligned with existing dietary patterns, holds promise for reducing future pressures on cultivated land and promoting better health outcomes for the populace in Southeast Asia.
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Affiliation(s)
- Yuting Qin
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China; (Y.Q.); (J.T.); (T.L.); (X.Q.); (S.W.); (F.L.)
| | - Jiayue Tang
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China; (Y.Q.); (J.T.); (T.L.); (X.Q.); (S.W.); (F.L.)
| | - Tanglu Li
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China; (Y.Q.); (J.T.); (T.L.); (X.Q.); (S.W.); (F.L.)
| | - Xin Qi
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China; (Y.Q.); (J.T.); (T.L.); (X.Q.); (S.W.); (F.L.)
| | - Dan Zhang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Sijia Wang
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China; (Y.Q.); (J.T.); (T.L.); (X.Q.); (S.W.); (F.L.)
| | - Fei Lun
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China; (Y.Q.); (J.T.); (T.L.); (X.Q.); (S.W.); (F.L.)
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