{"title":"Studying Optimal Strategies of Transmission\u0000Congestion Management in the Spot Market","authors":"Xiaodong Chen, Su Yang, Longxia Ren, Xingen Wang","doi":"10.15244/pjoes/173993","DOIUrl":"https://doi.org/10.15244/pjoes/173993","url":null,"abstract":"","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"28 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140659031","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":"An Identification Method of Maize Crop’s\u0000Nutritional Status Based on Index Weight","authors":"Li Tian, Chun Wang, Hailiang Li, Haitian Sun","doi":"10.15244/pjoes/176066","DOIUrl":"https://doi.org/10.15244/pjoes/176066","url":null,"abstract":"","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"90 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140654806","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}
Leilei Ding, Hong Chen, Xin Wei, Taoying Qin, Xia Lei, Jingyi Li, Yujun Zhang, Lili Zhao, Puchang Wang
The objective of this study was to compare the effects of grazing and non-grazing on the physicochemical properties, stoichiometry, ecto-enzyme activities, and microbial element limitations of soils at five depths in subtropical grassland, China, and to identify the influencing factors of enzyme activities and element limitations. Results showed that grazing, soil depth, and the interaction between grazing and depth remarkably changed soil available phosphorus (AP), available potassium (AK), available calcium (ACa) and available magnesium contents (AMg), bulk density (BD), water content (WC), and β-glucosidase activity (βGC) ( p = 6.702e-9 - 0.04739). Compared with no grazing, grazing remarkably declined the 0-5 cm soil AP by 73.10% ( p = 0.0250), the 0-5, 5-10, 10-20 cm soil WC by 47.19% ( p = 0.0042), 37.19% ( p = 0.0090), and 30.80% ( p = 0.0034), however, grazing remarkably increased the 0-5, 5-10, 10-20, 20-30 cm soil ACa by 188.76% ( p = 7.9e-05), 93.24% ( p = 0.0177) ,84.18% ( p = 0.00067), and 38.77% ( p = 0.01368), the 0-5, 5-10 cm soil AMg by 186.69% ( p = 0.0016), 78.89% ( p = 0.0109), the 0-5, 5-10, 10-20 cm soil pH by 0.51 ( p = 0.0013), 0.37 ( p = 0.0006), and 0.27 ( p = 0.0114) units, the 0-5, 5-10, 10-20 cm soil BD by 59.03% ( p = 0.0077), 44.14% ( p = 0.0147), and 35.55% ( p = 0.0071), the 30-50 cm soil WC by 22.88% ( p = 0.0241), the 0-5 cm soil βGC by 89.49% ( p = 0.0011), the 0-5, 5-10 cm soil ACP by 7.87% ( p = 0.0300), 6.57% ( p = 0.0240), respectively. Grazing exacerbated the microbial C limitation of 0-5 and 10-20 cm soils by 20.51% ( p = 0.0078) and 40.38% ( p = 0.0209) and switched the soil microbiome from under N limitation to under P limitation at 5-10 cm ( p = 0.0390). Specific soil available cations were identified as the important factors that significantly explained the variation of soil ecto-enzyme activities and soil microbial carbon and nutrient limitations.
本研究旨在比较放牧和非放牧对中国亚热带草原5个深度土壤理化性质、化学计量学、外源酶活性和微生物元素限制的影响，并确定酶活性和元素限制的影响因素。结果表明，放牧、土壤深度以及放牧与土壤深度的交互作用显著改变了土壤可利用磷（AP）、可利用钾（AK）、可利用钙（ACa）和可利用镁（AMg）含量、容重（BD）、含水量（WC）和β-葡萄糖苷酶活性（βGC）（p = 6.702e-9 - 0.04739）。与不放牧相比，放牧显著降低了 0-5 厘米土壤 AP 的 73.10%( p = 0.0250)，0-5、5-10、10-20 厘米土壤 WC 的 47.19%( p = 0.0042)、37.19%( p = 0.0090)和 30.80%( p = 0.0034），但放牧显著增加了 0-5、5-10、10-20、20-30 cm 土壤 ACa 188.76%( p = 7.9e-05) 、93.24%( p = 0.0177) 、84.18%( p = 0.00067) 和 38.77%( p = 0.01368)，0-5、5-10 cm 土壤 AMg 186.69%( p = 0.0016）、78.89%（p = 0.0109），0-5、5-10、10-20 cm 土壤 pH 值分别降低 0.51（p = 0.0013）、0.37（p = 0.0006）、0.27（p = 0.0114）个单位，0-5、5-10、10-20 cm 土壤 BD 值分别降低 59.03%（p = 0.0077）、44.14%（p = 0.0147) 和 35.55% ( p = 0.0071)，30-50 cm 土壤 WC 分别降低 22.88% ( p = 0.0241)，0-5 cm 土壤 βGC 降低 89.49% ( p = 0.0011)，0-5、5-10 cm 土壤 ACP 分别降低 7.87% ( p = 0.0300)、6.57% ( p = 0.0240)。放牧加剧了 0-5 和 10-20 厘米土壤微生物的 C 限制，分别为 20.51% ( p = 0.0078) 和 40.38% ( p = 0.0209)，并使 5-10 厘米土壤微生物群从 N 限制转为 P 限制 ( p = 0.0390)。特定的土壤可利用阳离子被认为是显著解释土壤外切酶活性和土壤微生物碳和养分限制变化的重要因素。
{"title":"Soil Cations Explain the Variation of Soil\u0000Extracellular Activities and Microbial Elemental\u0000Limitations on Subtropical Grassland, China","authors":"Leilei Ding, Hong Chen, Xin Wei, Taoying Qin, Xia Lei, Jingyi Li, Yujun Zhang, Lili Zhao, Puchang Wang","doi":"10.15244/pjoes/176566","DOIUrl":"https://doi.org/10.15244/pjoes/176566","url":null,"abstract":"The objective of this study was to compare the effects of grazing and non-grazing on the physicochemical properties, stoichiometry, ecto-enzyme activities, and microbial element limitations of soils at five depths in subtropical grassland, China, and to identify the influencing factors of enzyme activities and element limitations. Results showed that grazing, soil depth, and the interaction between grazing and depth remarkably changed soil available phosphorus (AP), available potassium (AK), available calcium (ACa) and available magnesium contents (AMg), bulk density (BD), water content (WC), and β-glucosidase activity (βGC) ( p = 6.702e-9 - 0.04739). Compared with no grazing, grazing remarkably declined the 0-5 cm soil AP by 73.10% ( p = 0.0250), the 0-5, 5-10, 10-20 cm soil WC by 47.19% ( p = 0.0042), 37.19% ( p = 0.0090), and 30.80% ( p = 0.0034), however, grazing remarkably increased the 0-5, 5-10, 10-20, 20-30 cm soil ACa by 188.76% ( p = 7.9e-05), 93.24% ( p = 0.0177) ,84.18% ( p = 0.00067), and 38.77% ( p = 0.01368), the 0-5, 5-10 cm soil AMg by 186.69% ( p = 0.0016), 78.89% ( p = 0.0109), the 0-5, 5-10, 10-20 cm soil pH by 0.51 ( p = 0.0013), 0.37 ( p = 0.0006), and 0.27 ( p = 0.0114) units, the 0-5, 5-10, 10-20 cm soil BD by 59.03% ( p = 0.0077), 44.14% ( p = 0.0147), and 35.55% ( p = 0.0071), the 30-50 cm soil WC by 22.88% ( p = 0.0241), the 0-5 cm soil βGC by 89.49% ( p = 0.0011), the 0-5, 5-10 cm soil ACP by 7.87% ( p = 0.0300), 6.57% ( p = 0.0240), respectively. Grazing exacerbated the microbial C limitation of 0-5 and 10-20 cm soils by 20.51% ( p = 0.0078) and 40.38% ( p = 0.0209) and switched the soil microbiome from under N limitation to under P limitation at 5-10 cm ( p = 0.0390). Specific soil available cations were identified as the important factors that significantly explained the variation of soil ecto-enzyme activities and soil microbial carbon and nutrient limitations.","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"12 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661769","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}
Wei Gong, Wei Hua Peng, Zhi Chun Li, Jie Ma, Hao Yu, Pan Xu, Jiajie Zhang
Taiyuan Formation limestone groundwater is the main aquifer threatening the safety of exploration under deep mining in the Huaibei coalfield. Therefore, acknowledging the hydrochemical characteristics and constructing reverse hydrogeochemical modeling are crucial for predicting and preventing mine water hazards. In this study, the mathematical statistical analysis, Piper three-line diagram, Gibbs diagram, ion proportional relationship, Chlorine-Alkali index, and the reverse hydrogeochemical modeling were employed for determining the hydrochemical characteristics and the formation mechanism. The results revealed that the hydrochemical types of groundwater samples were SO 4 .Cl-Ca.Mg and HCO 3 .Cl-Na, respectively. The water-rock interactions were primarily influenced by the leaching and the cation exchange, with these processes being more intense in the eastern region. Through reverse hydrogeochemical modeling, the water-rock interactions in the process of groundwater runoff were quantitatively verified, viz. the calcite and the dolomite were saturated and precipitating, while the gypsum and the halite were unsaturated and still dissolving. Furthermore, the simulations of mass transfer in groundwater runoff indicated that the dissolution and the leaching of gypsum, dolomite and halite, positive ion exchange, the precipitation of calcite, and the dissolution of CO 2 gas predominantly occurred along four simulated flow paths. These results offered a scientific foundation for the prevention and controlling of mine water hazards in deep mining contexts.
太原地层石灰岩地下水是威胁淮北煤田深部开采安全的主要含水层。因此，认识其水文地质化学特征，建立反演水文地质化学模型是预测和预防矿井水危害的关键。本研究采用数理统计分析、Piper 三线图、Gibbs 图、离子比例关系、氯碱指数和逆向水文地质化学模型来确定水化学特征和形成机理。结果表明，地下水样本的水化学类型分别为 SO 4 .Cl-Ca.Mg和HCO 3 .Cl-Na。水与岩石之间的相互作用主要受浸滤作用和阳离子交换作用的影响，其中东部地区的浸滤作用和阳离子交换作用更为强烈。通过反演水文地球化学模型，定量验证了地下水径流过程中的水岩相互作用，即方解石和白云石处于饱和沉淀状态，而石膏和海泡石处于非饱和溶解状态。此外，地下水径流的传质模拟表明，石膏、白云石和卤石的溶解和浸出、正离子交换、方解石的沉淀以及二氧化碳气体的溶解主要发生在四条模拟流路上。这些结果为预防和控制深部采矿环境中的矿井水危害提供了科学依据。
{"title":"Hydrochemical Characteristics and Reverse\u0000Hydrogeochemical Modeling of Taiyuan\u0000Formation Limestone Groundwater of\u0000Sunan Mining Area in Huaibei Coalfield","authors":"Wei Gong, Wei Hua Peng, Zhi Chun Li, Jie Ma, Hao Yu, Pan Xu, Jiajie Zhang","doi":"10.15244/pjoes/176555","DOIUrl":"https://doi.org/10.15244/pjoes/176555","url":null,"abstract":"Taiyuan Formation limestone groundwater is the main aquifer threatening the safety of exploration under deep mining in the Huaibei coalfield. Therefore, acknowledging the hydrochemical characteristics and constructing reverse hydrogeochemical modeling are crucial for predicting and preventing mine water hazards. In this study, the mathematical statistical analysis, Piper three-line diagram, Gibbs diagram, ion proportional relationship, Chlorine-Alkali index, and the reverse hydrogeochemical modeling were employed for determining the hydrochemical characteristics and the formation mechanism. The results revealed that the hydrochemical types of groundwater samples were SO 4 .Cl-Ca.Mg and HCO 3 .Cl-Na, respectively. The water-rock interactions were primarily influenced by the leaching and the cation exchange, with these processes being more intense in the eastern region. Through reverse hydrogeochemical modeling, the water-rock interactions in the process of groundwater runoff were quantitatively verified, viz. the calcite and the dolomite were saturated and precipitating, while the gypsum and the halite were unsaturated and still dissolving. Furthermore, the simulations of mass transfer in groundwater runoff indicated that the dissolution and the leaching of gypsum, dolomite and halite, positive ion exchange, the precipitation of calcite, and the dissolution of CO 2 gas predominantly occurred along four simulated flow paths. These results offered a scientific foundation for the prevention and controlling of mine water hazards in deep mining contexts.","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"51 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140664436","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}
Based on literature review and theoretical mechanisms, this article selects city-level data to explore the impact of provincial capital cities boundary expansion on the quality of regional green and low-carbon development. The following conclusions were obtained: (1) Overall, the expansion of provincial capital city boundaries can significantly improve the quality of green and low-carbon development in the later stages of policy implementation, which in turn significantly improves the benefits of urban green and low-carbon development. The estimated coefficients of policy effects show a trend of slow increase followed by a significant increase. (2) The analysis of Hefei City as a case sample discovered, that expansion of the provincial capital city boundaries can bring about the policy effect of about 0.002-0.371 units to Hefei. From the perspective of the development trend, in the early stage of policy implementation (2011-2014), the degree of policy effect enhancement is slow, and the positive green low-carbon effect has not been fully utilized. In the middle and late stages of policy implementation (2015-2019), the green low-carbon effect shows an increasing development. The policy effect coefficient peaked in 2016, with a value of 0.371. (3) After the implementation of the “strong provincial capital” strategy, the efficient utilization of infrastructure construction, the reduction of industrial transfer, the positive externalities of industrial agglomeration, and the expansion of the city’s financial autonomy are the mechanism paths that generate positive green and low-carbon effects in the later stages of policy implementation.
{"title":"Strong Provincial Capital Strategy and the Quality\u0000of Regional Green and Low-Carbon Development\u0000– Empirical Analysis Based on the Expansion\u0000of Provincial Capital City Boundaries","authors":"Rongbo Zhang, Changbiao Zhong","doi":"10.15244/pjoes/177431","DOIUrl":"https://doi.org/10.15244/pjoes/177431","url":null,"abstract":"Based on literature review and theoretical mechanisms, this article selects city-level data to explore the impact of provincial capital cities boundary expansion on the quality of regional green and low-carbon development. The following conclusions were obtained: (1) Overall, the expansion of provincial capital city boundaries can significantly improve the quality of green and low-carbon development in the later stages of policy implementation, which in turn significantly improves the benefits of urban green and low-carbon development. The estimated coefficients of policy effects show a trend of slow increase followed by a significant increase. (2) The analysis of Hefei City as a case sample discovered, that expansion of the provincial capital city boundaries can bring about the policy effect of about 0.002-0.371 units to Hefei. From the perspective of the development trend, in the early stage of policy implementation (2011-2014), the degree of policy effect enhancement is slow, and the positive green low-carbon effect has not been fully utilized. In the middle and late stages of policy implementation (2015-2019), the green low-carbon effect shows an increasing development. The policy effect coefficient peaked in 2016, with a value of 0.371. (3) After the implementation of the “strong provincial capital” strategy, the efficient utilization of infrastructure construction, the reduction of industrial transfer, the positive externalities of industrial agglomeration, and the expansion of the city’s financial autonomy are the mechanism paths that generate positive green and low-carbon effects in the later stages of policy implementation.","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"7 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661824","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":"Comparative Analysis of Soil Salinity under Flat\u0000and Ridge Cultivation Methods in Citrus Orchards","authors":"Burçak Kapur","doi":"10.15244/pjoes/184629","DOIUrl":"https://doi.org/10.15244/pjoes/184629","url":null,"abstract":"quantify","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"63 48","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140664004","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}
Viruses can adversely affect vines' vitality, longevity, quality, and quantity in single or mixed infections. In this work, to detect single and mixed viral infections of grapevine in two central viticulture regions of Azerbaijan, a total of 166 samples showing virus-like symptoms including yellows, reddening, fan leaf, mosaic, leaf rolling, and shortening of internodes were collected during the growing seasons of 2022-2023 from different vineyards and subjected to ELISA and RT-PCR analyses. Plant samples were initially assayed using the one-step assay AgriStrip based on lateral flow immunochromatography and DAS-ELISA with specific antisera for Grapevine fanleaf virus (GFLV), Grapevine leafroll-associated virus 1 (GLRaV-1), Grapevine leafroll-associated virus 2 (GLRaV-2), Grapevine leafroll-associated virus 3 (GLRaV-3), and Grapevine leafroll-associated virus 4 (GLRaV-4). Following serological tests, 65% (108 out of 166) of the examined samples exhibited a positive result for one or more of the specified viruses. Total RNA was extracted, and synthesized cDNA was used to amplify a part of the coat protein (CP) gene in RT-PCR using specific primers. Amplicons of the expected size of 1560 bp, 401 bp, 600 bp, 942 bp, 500 bp, and 272 bp were amplified for the mentioned viruses, respectively (but not from healthy samples). The result of this study can be used in the management strategies of these viruses in grapevine-producing areas of Azerbaijan.
{"title":"Occurrence of Single and Mixed Viral Infections\u0000of Grapevine (Vitis Spp.) in Azerbaijan","authors":"Nargiz Sultanova, Mina Rastgou, I. Huseynova","doi":"10.15244/pjoes/176052","DOIUrl":"https://doi.org/10.15244/pjoes/176052","url":null,"abstract":"Viruses can adversely affect vines' vitality, longevity, quality, and quantity in single or mixed infections. In this work, to detect single and mixed viral infections of grapevine in two central viticulture regions of Azerbaijan, a total of 166 samples showing virus-like symptoms including yellows, reddening, fan leaf, mosaic, leaf rolling, and shortening of internodes were collected during the growing seasons of 2022-2023 from different vineyards and subjected to ELISA and RT-PCR analyses. Plant samples were initially assayed using the one-step assay AgriStrip based on lateral flow immunochromatography and DAS-ELISA with specific antisera for Grapevine fanleaf virus (GFLV), Grapevine leafroll-associated virus 1 (GLRaV-1), Grapevine leafroll-associated virus 2 (GLRaV-2), Grapevine leafroll-associated virus 3 (GLRaV-3), and Grapevine leafroll-associated virus 4 (GLRaV-4). Following serological tests, 65% (108 out of 166) of the examined samples exhibited a positive result for one or more of the specified viruses. Total RNA was extracted, and synthesized cDNA was used to amplify a part of the coat protein (CP) gene in RT-PCR using specific primers. Amplicons of the expected size of 1560 bp, 401 bp, 600 bp, 942 bp, 500 bp, and 272 bp were amplified for the mentioned viruses, respectively (but not from healthy samples). The result of this study can be used in the management strategies of these viruses in grapevine-producing areas of Azerbaijan.","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"31 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140665978","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}
Xin Lan, Wen-xiong Jia, Le Yang, Guofeng Zhu, Yue Zhang, Zhijie Yu, Huifang Luo
Soil organic carbon (SOC) is an important component of the global carbon pool, whose accumulation and decomposition affect the balance of the global carbon cycle and climate change. However, understanding of the responses of SOC in alpine ecosystems to climate change is quite limited, especially in the seasonal-frozen soil zone. In order to understand the impact of soil moisture changes on the carbon cycle in alpine mountain ecosystems, we established two sample plots of the semi-shady and semi-sunny slopes in the subalpine meadow zone of the eastern part of Qilian Mountains, and collected soil samples to investigate the spatial and temporal changes of SOC and soil moisture and their relationships. The study indicated that the SOC content showed significant surface aggregation during the plant growing season, and that the influence of soil moisture on SOC was different in different slope directions and soil depths. The influence of soil moisture on SOC was greater on the semi-shady slope than on the semi-sunny slope. Among different soil layer depths, the soil moisture most significantly affected SOC in the soil layer of 20-40 cm. This study provides a theoretical basis for the study of carbon stocks and carbon cycling at high altitudes.
{"title":"Study on the Effect of Soil Moisture\u0000on Soil Organic Carbon During the Growing\u0000Period of Plants in the Subalpine Meadows\u0000Zone of Qilian Mountains, China","authors":"Xin Lan, Wen-xiong Jia, Le Yang, Guofeng Zhu, Yue Zhang, Zhijie Yu, Huifang Luo","doi":"10.15244/pjoes/176063","DOIUrl":"https://doi.org/10.15244/pjoes/176063","url":null,"abstract":"Soil organic carbon (SOC) is an important component of the global carbon pool, whose accumulation and decomposition affect the balance of the global carbon cycle and climate change. However, understanding of the responses of SOC in alpine ecosystems to climate change is quite limited, especially in the seasonal-frozen soil zone. In order to understand the impact of soil moisture changes on the carbon cycle in alpine mountain ecosystems, we established two sample plots of the semi-shady and semi-sunny slopes in the subalpine meadow zone of the eastern part of Qilian Mountains, and collected soil samples to investigate the spatial and temporal changes of SOC and soil moisture and their relationships. The study indicated that the SOC content showed significant surface aggregation during the plant growing season, and that the influence of soil moisture on SOC was different in different slope directions and soil depths. The influence of soil moisture on SOC was greater on the semi-shady slope than on the semi-sunny slope. Among different soil layer depths, the soil moisture most significantly affected SOC in the soil layer of 20-40 cm. This study provides a theoretical basis for the study of carbon stocks and carbon cycling at high altitudes.","PeriodicalId":510399,"journal":{"name":"Polish Journal of Environmental Studies","volume":"58 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661909","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}
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