应用生态学报Pub Date : 2025-03-18DOI: 10.13287/j.1001-9332.202503.030
Min Yu, Xiao-Long Jia, Yu Bo, Chun-Xiang Cheng, Duo Ruan, Yun Qin, Ying Wang
{"title":"Carbon sink capacity and climate impact assessment of terrestrial ecosystems in Heilongjiang Province.","authors":"Min Yu, Xiao-Long Jia, Yu Bo, Chun-Xiang Cheng, Duo Ruan, Yun Qin, Ying Wang","doi":"10.13287/j.1001-9332.202503.030","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202503.030","url":null,"abstract":"<p><p>Terrestrial ecosystems in Heilongjiang Province have strong carbon sequestration capacity but vulnerable to climate change. Analyzing the spatio-temporal variations of carbon budget of terrestrial ecosystems in this region and the impacts of climate change is of great significance for improving ecosystem carbon sequestration in Heilongjiang Province. Based on 1961-2022 climate data and leaf area index data, we adopted the ecosystem carbon cycle BEPS model to quantitatively simulate the net primary productivity (NPP) and net ecosystem productivity (NEP) of terrestrial ecosystems in Heilongjiang Province, and assessed the climate impact. The results showed that the BEPS model could simulate carbon sequestration capacity of Heilongjiang Province. From 1961 to 2022, ecosystem carbon sequestration capacity in the study area increased. NPP increased by 1.5 g C·m<sup>-2</sup>·a<sup>-1</sup> on average, and the increase trend was more significant after 2010 with an annual rate of 7.5 g C·m<sup>-2</sup>. Forest carbon sequestration capacity was the strongest, and the increment of carbon sequestration capacity of farmland ecosystem was the most significant. In the context of climate warming, the minimum temperature, precipitation, and wind speed significantly affected carbon sequestration capacity, with precipitation being the most important factor. During the study period, the correlation coefficient between precipitation and carbon sequestration in Heilongjiang Province increased overall, and the relative contribution rate was the highest, accounting for 46.1%. The relative contribution rate of precipitation to vegetation NEP was 67.1%.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"828-836"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
应用生态学报Pub Date : 2025-03-18DOI: 10.13287/j.1001-9332.202503.013
Dan Chang, Yan-Hui Huang, Min Tian, Yan-Fei Cai, Jing Meng
{"title":"Effects of exogenous strigolactones on growth and physiological characteristics of two <i>Primulina</i> species under drought stress.","authors":"Dan Chang, Yan-Hui Huang, Min Tian, Yan-Fei Cai, Jing Meng","doi":"10.13287/j.1001-9332.202503.013","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202503.013","url":null,"abstract":"<p><p>To investigate the role of strigolactones (SLs) in alleviating the impacts of drought stress on <i>Primulina</i>, we examined the effects of drought and exogenous SLs analogue GR24 (20 μmol·L<sup>-1</sup>) on the growth of two <i>Primulina</i> species, <i>P. hiemalis</i> and <i>P. longii</i>, with PEG-6000 (PEG-6000=20%) to simulate drought stress. The results showed that spraying GR24 effectively alleviated the wilting and yellowing degree of leaves in both species, and effectively promoted root growth. Root vitality and total length of new roots of <i>P. hiemalis</i> was significantly increased by 12.1% and 26.2%, respectively. Leaf photosynthetic capacity was improved, which effectively alleviated the inhibitory effect of drought on photosynthesis. The total chlorophyll content, intercellular CO<sub>2</sub> concentration, and net photosynthetic rate of leaves of <i>P. hiemalis</i> were significantly increased by 5.9%, 1.5%, and 27.5%, respectively, while the intercellular CO<sub>2</sub> concentration of <i>P. longii</i> was significantly increased by 2.5%. The activity of antioxidant enzyme was significantly increased in the leaves and roots of both species, among which the activities of superoxide dismutase, peroxidase, and catalase in the leaves and the activities of superoxide dismutase and catalase in the roots of <i>P. hiemalis</i> and <i>P. longii</i> were significantly increased by 50.3%, 22.3%, 31.2%, 67.7%, 12.5%, and 51.2%, 29.0%, 11.1%, 27.6%, 18.2%, respectively. The degree of peroxidation was effectively reduced, and the content of malondialdehyde in leaves of <i>P. hiemalis</i> and <i>P. longii</i> was significantly reduced by 10.0% and 16.6%, respectively. In all, drought stress significantly inhibited the growth of <i>Primulina</i>, and the external application of SLs could significantly alleviate the damage of drought stress on <i>Primulina</i> plants.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"802-810"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
应用生态学报Pub Date : 2025-03-18DOI: 10.13287/j.1001-9332.202503.027
Yu-Jie Guo, Hi-Bin Ren, Xing-Yuan He
{"title":"Multifunctionality of urban forest landscapes and their trade-offs and synergies.","authors":"Yu-Jie Guo, Hi-Bin Ren, Xing-Yuan He","doi":"10.13287/j.1001-9332.202503.027","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202503.027","url":null,"abstract":"<p><p>The assessment of the multifunctionality of urban forest landscapes is crucial for decision-making regar-ding landscaple allocation, optimization, and planning. Due to the high fragmentation and heterogeneity, it is a great challenge to scientifically evaluate the multifunctionality of urban forests and trade-offs/synergies. With Changchun City as the study area, we used plot surveys and remote sensing data to construct a model for estimating urban forest ecological functions. A multifunctional evaluation framework was proposed, which comprehensively considered both the quality and quantity of functions to quantitatively characterize the spatial patterns of multifunctionality and their trade-offs/synergies. The results showed that the annual carbon sequestration of urban forests in Changchun's built-up areas reached 36.78 t, with an average cooling effect of 0.96 ℃, an annual removal of PM<sub>2.5</sub> reaching 527.52 t, and a recreational capacity of 50.08 people·m<sup>-2</sup>. Compared to the downtown, the suburban forests were stronger in carbon sequestration, air purification, and recreational functions, displaying a spatial distribution pattern that was lower in the interior and higher along the periphery. There was a significant trade-off between recreational functions and carbon sequestration and cooling functions, while carbon sequestration showed strong synergies with air purification and cooling functions. As urbanization varied, the trade-offs/synergies among functions displayed spatial heterogeneity, with carbon sequestration and cooling functions showing synergies in the city center and weak trade-offs in the suburbs. The multifunctionality of urban forest landscapes in Changchun performed optimally when the threshold was 25%, with high-value areas concentrated in the city's outer ring, exhibiting a stronger west and weaker east pattern. The multifunctionality generally increased from the 1<sup>st</sup> ring road (1.61) to the 5<sup>th</sup> ring road (2.01). Our results provide a scientific foundation for the planning and management of urban forest landscapes in Changchun, contribute to the optimization of urban forest multifunctionality, and promote sustainable urban development.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"837-846"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
应用生态学报Pub Date : 2025-03-18DOI: 10.13287/j.1001-9332.202503.006
Shu-Shu Yao, Quan-Lin Zhong, Shi-Feng Cai, Sun-Qing Su, Feng-Na Liang, Chao-Bin Xu, Dong-Liang Cheng, Yuan-Wang Chen, Lei Tang
{"title":"C:N:P stoichiometry and homeostasis in leaf, fine root, and soil of <i>Schima superba</i> under different stand ages.","authors":"Shu-Shu Yao, Quan-Lin Zhong, Shi-Feng Cai, Sun-Qing Su, Feng-Na Liang, Chao-Bin Xu, Dong-Liang Cheng, Yuan-Wang Chen, Lei Tang","doi":"10.13287/j.1001-9332.202503.006","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202503.006","url":null,"abstract":"<p><p>To understand nutrient characteristics and stabilization mechanisms of <i>Schima superba</i> plantations with different stand ages, we took stands with five age classes (8, 13, 27, 36, and 54 a) in Youxi County, Fujian Province as the research objects, to explore the variations of carbon (C), nitrogen (N), and phosphorus (P) and their stoichiometric relationships in leaf, fine root, and soil. We further ananlyzed the coupling and homeostasis characteristics between the two components of leaf and fine root of <i>S. superba</i> and soil. The results showed that the C, N, and P contents in leaf and fine root showed a general trend of decreasing and then increasing with the increases of stand age. The minimum values of N (10.38 and 3.45 g·kg<sup>-1</sup>) and P contents (0.44 and 0.21 g·kg<sup>-1</sup>) of leaf and fine root appeared at the stand with age of 13 a. The C:N and C:P of those two components increased and then decreased with increasing stand age, and both of them reached their maximum values at 13 a. With the increase of stand age, soil C, N, and P contents of woodland showed a pattern of decreasing-increasing-decreasing. All of them were the lowest at 13 a, with 34.27, 1.82, and 0.11 g·kg<sup>-1</sup>, respectively; while the maximum values of soil C:N, C:P, and N:P appeared at 13 a, with 19.2, 315.8, and 17.0, respectively. The N and P contents and their stoichiometric ratios of leaf and fine root had significant correlations with soil P content and but not with soil C and N contents. Steady-state model regressions of leaf and fine root C, N, and N:P were all non-significant with absolute stability; and N, P and their stoichiometric ratio of leaf were smaller than those of fine root, but P and C:P of leaf and fine root were more sensitive to change in soil P content. In summary, 13-a was the fast-growing period of <i>S. superba</i>. Soil P content significantly affected leaf and fine root N and P content of <i>S. superba</i>, with the leaf being more sensitive to the variations of soil P content. It was recommended that P fertilizer should be added at the appropriate time to improve soil fertility and focus on the changing of foliar N and P contents.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"738-746"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of different earthworm densities on stability and organic carbon of soil aggregates in a Moso bamboo forest.","authors":"Yu-Feng Qiu, Rong-Gui Tang, Yu-Ye Shen, You-Chao Chen, Yi-Hong Liu, Yan-Jiang Cai","doi":"10.13287/j.1001-9332.202503.016","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202503.016","url":null,"abstract":"<p><p>Earthworms play a crucial role in regulating soil aggregates and soil organic carbon content. However, the effects of earthworm density on the composition, stability, and organic carbon of various soil aggregate fractions in Moso bamboo (<i>Phyllostachys edulis</i>) forest remain poorly understood. We conducted a 180-day <i>in situ</i> experiment to investigate the effects of different earthworm densities on composition, stability, organic carbon content of soil aggregates in a Moso bamboo forest. There were three treatments, including control (CK, no earthworm), local earthworm density (OE, 8 earthworms added in 50 cm×50 cm×40 cm), and double earthworm density (DE, 16 earthworms added in 50 cm×50 cm×40 cm). Compared to CK, the OE and DE treatments significantly increased the proportion of water-stable large macroaggregates (>2 mm) by 62.8% and 35.1%, respectively. Earthworm density improved soil aggregate stability, with stronger impacts of DE treatment than the OE treatment. Both OE and DE treatments increased organic carbon content across all soil aggregate fractions, with the organic carbon contents in bulk soil rising by 19.1% and 24.0%, respectively. Organic carbon contents in bulk soil were significantly correlated with the composition, stability, and organic carbon content of soil aggregates. Results of random forest analysis showed that organic carbon content in the bulk soil under the OE treatment was more strongly influenced by the organic carbon content in various soil aggregate fractions, whereas it was more strongly influenced by aggregate stabi-lity under the DE treatment. In conclusion, earthworms improved soil aggregate properties, thereby increasing organic carbon content in bulk soil, as indicated by the fact that higher earthworm densities promoted the formation of more aggregate organic carbon and enhanced soil aggregate stability.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"819-827"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
应用生态学报Pub Date : 2025-03-18DOI: 10.13287/j.1001-9332.202503.019
Ya-Ru Shan, Jia-He Tian, Xiu-Wen Fan, Lei Liu
{"title":"Spatial distribution of soil organic carbon components in mainland of China and their response to climate change.","authors":"Ya-Ru Shan, Jia-He Tian, Xiu-Wen Fan, Lei Liu","doi":"10.13287/j.1001-9332.202503.019","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202503.019","url":null,"abstract":"<p><p>Preserving and increasing soil organic carbon pool is an effective natural way to mitigate climate change. However, the sensitivity of soil organic carbon to climate change in different ecosystems in mainland of China is still unclear. To investigate the response of soil organic carbon to climate change, it is important to classify it into particulate (POC) and mineral-associated organic carbon (MAOC) components. In this study, we assessed the spatial distributions of POC and MAOC in mainland of China and simulated their responses to future climate change using machine learning methods. The results showed that: 1) the stocks of soil organic carbon, POC, and MAOC in the top 20 cm soils of mainland China were 45.3, 20.7, and 24.6 Pg, respectively. 2) Soil organic carbon components were positively correlated with altitude and negatively correlated with air temperature. 3) Under the SSP585 scenario, the stocks of POC and MAOC in China would decrease by 4.80 and 2.13 Pg, from 2020 to 2100, respectively. The contents of soil organic carbon components were higher in Northeast China and Qinghai-Tibet Plateau, but lower in the Inner Mongolia Plateau, Sichuan Basin, North China, and Northwest China Plain. The sensitivity of POC to climate change was higher than MAOC. Climate warming would cause the greatest loss of soil organic carbon in the meadow ecosystem.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"847-858"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
应用生态学报Pub Date : 2025-03-18DOI: 10.13287/j.1001-9332.202503.025
Jie Tan, Qian-Jun Wei, Zhao-Yang Liao, Wen-Jun Kuang, Hui-Ting Deng, De Yu
{"title":"Relationship between urban form and surface temperature based on XGBoost SHAP interpretable machine learning model.","authors":"Jie Tan, Qian-Jun Wei, Zhao-Yang Liao, Wen-Jun Kuang, Hui-Ting Deng, De Yu","doi":"10.13287/j.1001-9332.202503.025","DOIUrl":"10.13287/j.1001-9332.202503.025","url":null,"abstract":"<p><p>With the increase of high-rise buildings in major cities worldwide, exploring the effects of urban two-dimensional (2D) and three-dimensional (3D) morphology on land surface temperature (LST) has become the key to mitigating the urban thermal environment and optimizing urban planning. Using the area within the Third Ring Road of Changsha as a case, we extracted 13 urban 2D/3D morphological factors based on 2020 multi-source remote sensing data. We used Pearson correlation analysis to examine the relationship between LST and each factor, and used the XGBoost model and SHAP method to reveal their nonlinear impacts and contributions. The results showed that in 2020, high-temperature regions mainly concentrated in the building-dense central area of Changsha, while low-temperature areas predominantly located in the forest parks in the western and northeastern parts of the city, as well as along the Xiangjiang River. The normalized difference building index (NDBI), nighttime lighting (NTL) and proportion of construction land (PCL) exhibited significant positive correlations with LST, with correlation coefficients of 0.592, 0.537 and 0.446, respectively, indicating that urbanization exacerbated surface warming. In contrast, the normalized difference vegetation index (NDVI) and the sky view coefficient (SVF) showed significant negative correlation with LST, with correlation coefficients of -0.316 and -0.200, respectively, reflecting the important role of green space and open space in mitigating the urban heat island effect. NDBI, NTL, NDVI, and elevation (DEM) had the greatest influence on LST, contributing 60.9% of the total variance. These 2D/3D morphological factors exhibited complex nonlinear effects on LST. NDBI had the most significant warming effect in the range from 0 to 0.2. The warming effect of NTL tended to saturate when its intensity exceeded 40. The cooling effect of NDVI became more pronounced as it surpassed 0.5. DEM values between 50 and 150 m produced the most signifi-cant cooling effect. This study validated the effectiveness of the XGBoost-SHAP model in uncovering the nonlinear mechanisms through which urban 2D/3D morphological factors influenced LST, offering scientific insights for urban heat management and the development of green, low-carbon, and livable urbanization.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 3","pages":"659-670"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Water use efficiency of dominant tree species during natural restoration of vegetation in karst peak-cluster depression.","authors":"Xiao-Yue Qiu, Jian-Xing Li, Wang-Lan Tao, Zhi-Ying Wang, Yi-Li Guo, Shu-Hua Lu, Xian-Kun Li, Fu-Zhao Huang","doi":"10.13287/j.1001-9332.202502.010","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202502.010","url":null,"abstract":"<p><p>We measured water use efficiency (WUE) of dominant species across three distinct restoration stages (shrub, secondary forest, and primary forest) in karst peak-cluster depression region using stable carbon isotope technology. The results showed that foliar δ<sup>13</sup>C values of 12 dominant tree species ranged from -32.1‰ to -29.0‰. The WUE for these dominant species ranged from 18.25 μmoL·moL<sup>-1</sup> to 36.23 μmoL·moL<sup>-1</sup>, with the lowest WUE in <i>Pittosporum tobira</i> and the highest WUE in <i>Pterolobium punctatum</i>. The hierarchy of WUE across different restoration stages was in order of shrub > secondary forest > primary forest. The WUE for a particular species was higher during early-stage vegetation recovery compared to late-stage. Furthermore, when considering different life forms, WUE was in order of liana > shrub > tree. From the shrub stage to the primary forest stage, deciduous species exhibited higher WUE than evergreen species. In summary, plant WUE gradually declined with the ongoing vegetation restoration process in this region. Enhancing WUE was one of the principal strategies for plant adaptation to drought-prone habitats within karst peak cluster depression region. Therefore, priority should be given to lianas and shrubs characterized by high WUE when selecting appropriate species for reforestation efforts in karst regions subject to seasonal or geological droughts.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 2","pages":"445-451"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Construction and optimization of ecological network based on ecological vulnerability in Ulanqab, Inner Mongolia, China.","authors":"Wei-Jia Cao, Qing-Kang Yang, Guo-Xiu Jia, Hui-Ting Bai, Zi-Xuan Guo, Zhen-Xing Wang, Li-Xin Wang, Lu Wen","doi":"10.13287/j.1001-9332.202502.026","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202502.026","url":null,"abstract":"<p><p>Natural condition change and human disturbance can trigger a series of ecological and environmental problems. The construction of ecological network plays a crucial role in balancing contradictions between regional development and ecological protection. We employed the ecological vulnerability assessment method based on pattern-service coupling to construct the ecological network of Ulanqab, Inner Mongolia. The results showed a total area of 12951.2 km<sup>2</sup> of ecological sources, accounting for 23.8% of the study area, mainly located in the northern part. Additionally, 113 ecological corridors were identified, with a total length of 2397.1 km, which were primarily located in the central and southern parts. Ecological pinch points were mainly situated in the central part of the study area, overlapping with some ecological corridors. Ecological barriers were predominantly distributed around the fragmented ecological sources. Based on the spatial distribution of ecological components within the ecological network, an optimized layout was formed, comprising three zones and one belt (ecological security protection zone, typical grassland restoration zone, natural ecological conservation zone, and ecological corridor development belt). These results provided a scientific theoretical basis for future ecological protection and restoration in this region, which were crucial for maintaining regional ecological security and optimizing the spatial patterns.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 2","pages":"376-382"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
应用生态学报Pub Date : 2025-02-18DOI: 10.13287/j.1001-9332.202502.023
Xue-Ting Li, Liang-Jie Yang, Yong-Chun Yang, Ya-Nan Li
{"title":"Analysis on coupling and coordination of urbanization and ecological resilience in Hexi Corridor Economic Belt, China.","authors":"Xue-Ting Li, Liang-Jie Yang, Yong-Chun Yang, Ya-Nan Li","doi":"10.13287/j.1001-9332.202502.023","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202502.023","url":null,"abstract":"<p><p>The model of extensive economic growth has intensified the tensions between urban development and ecological resilience. Taking the ecological context, resource and environmental costs, as well as the urbanization development into consideration, we constructed an ecological resilience evaluation system based on scale-density-morphology and a dual dimensional urbanization evaluation system based on population-economy. We measured the level of urbanization and ecological resilience in the Hexi Corridor Economic Belt, and explored the spatiotemporal variations and coordination relationship and between urbanization and ecological resilience based on a coupled coordination degree model. From 2010 to 2023, urbanization levels in the Hexi Corridor Economic Belt fluctuated between 0.42 and 0.49, exhibiting a spatial pattern characterized by low at the center and high at the east and west sides. With respect to urbanization modes, Jinchang was rapid development type, Zhangye was population lagging type, Jiuquan was slow developing type, and Jiayuguan and Wuwei had risen from a slow developing type to a rapid developing type. The ecological resilience levels in the Hexi Corridor Economic Belt fluctuated from 0.46 to 0.45, showing a significant ecological deficit. This ecological resilience exhibited a spatial distribution pattern marked by high values in the northwest and low values in the southeast. In term of ecological resilience category, Jiayuguan was an ecological surplus type, Zhangye and Wuwei were ecological deficit type, Jiuquan and Jinchang were dual-low type concerning both scale and density. Urbanization and ecological resilience was basically coordinated, showing a spatial pattern of low in the middle and high at east and west sides. The heterogeneity of the coupling and coordination effects of the ecological resilience subsystem was significant, the scale resilience hindered Jiayuguan and Wuwei, promoted Zhangye and Jiuquan, and transformed Jinchang from a promoting effect to a blocking effect. Density resilience had promotive effects in Jiayuguan and Wuwei, but inhibitive effects in the other three cities. Morphological resilience had inhibitive effects in Jiayuguan and Zhangye, but promotive effects in the other three cities.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"36 2","pages":"547-558"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}