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学者姓名：江聪
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Abstract ：
Microbial resource limitation is critical to ecosystem function and processes. However, knowledge about the patterns and mechanisms of microbial resource limitation in karst fragmented habitats is still lacking. In this study, the karst negative topography fragmented habitat-Zhanyi Tiankeng Group was taken as a model system, and the microbial resource limitations of the tiankeng ecosystem were studied. Tiankeng soil microbes were colimited by C and P. Compared to outside the tiankeng sites, the tiankeng provides a refuge for the survival of microbes and alleviates microbial resource limitations. Habitat fragmentation has altered microbial resource limitations. Lower microbial C limitation on larger tiankengs, suggested that larger fragment habitats could create a unique habitat for soil microbial survival in the degraded karst landscapes. Microbial C and P limitations were mainly affected by soil water content and dissolved organic carbon, indicating that soil physicochemical properties were important factors in maintaining microbial metabolism in tiankengs. Our study provides meaningful insights into ecosystem functions and soil biogeochemical cycles in karst fragment habitats.
Keyword ：
Fragile ecosystems Fragile ecosystems Habitat fragmentation Habitat fragmentation Karst Karst Microbial resource limitation Microbial resource limitation Negative topography Negative topography
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| GB/T 7714 | Jiang, Cong , Qiu, Changchun , Wu, Yuqing et al. Area influences microbial resource limitations in karst fragmented habitats [J]. | APPLIED SOIL ECOLOGY , 2025 , 206 . |
| MLA | Jiang, Cong et al. "Area influences microbial resource limitations in karst fragmented habitats" . | APPLIED SOIL ECOLOGY 206 (2025) . |
| APA | Jiang, Cong , Qiu, Changchun , Wu, Yuqing , Zhu, Sufeng , Shui, Wei . Area influences microbial resource limitations in karst fragmented habitats . | APPLIED SOIL ECOLOGY , 2025 , 206 . |
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Abstract ：
全球气候变化和城市化进程的持续推进,加剧了极端天气事件频发,采取"基于自然的解决方案"(NbS)缓解高温热浪对城市居民的健康风险具有重要意义.以福州的3种榕属树种——细叶榕(Ficus microcarpa)、高山榕(F.altissima)、雅榕(F.concinna)和2种常见优势树种杧果(Mangifera indica)和香樟(Cinnamomum camphora)作为研究对象,通过现场实验和生理指标测度等方法,探讨不同树种遮阳环境下的人体生理健康指标变化,以及不同树种遮阳环境对生理指标的影响程度.结果表明:1)相比其他树种遮阳环境,细叶榕遮阳环境下受试者表现为显著低体温和低脉搏的生理特征;2)进入细叶榕遮阳环境后,受试者的体温降低幅度显著大于香樟的遮阳环境,受试者的舒张压降低幅度显著大于杧果的遮阳环境;3)榕属树种遮阳环境下受试者体温降低的概率是香樟遮阳环境下的4.17倍,其中,细叶榕遮阳环境对受试者体温降低的影响显著大于其他树种的遮阳环境.研究结果有助于热带和亚热带城市的园林树种选择和优化,也为城市居民健康出行提供有效避暑建议.旨在揭示微观尺度上绿色空间提供的人类福祉,探讨城市优势树种如何发挥其独特的生态功能.
Keyword ：
榕树 榕树 现场实验 现场实验 生理健康 生理健康 福州市 福州市 风景园林 风景园林 高温热浪 高温热浪
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| GB/T 7714 | 林咏园 , 税伟 , 冯洁 et al. 基于高温现场实验的榕树遮阳环境与人体生理健康效益的影响研究 [J]. | 中国园林 , 2025 , 41 (1) : 31-38 . |
| MLA | 林咏园 et al. "基于高温现场实验的榕树遮阳环境与人体生理健康效益的影响研究" . | 中国园林 41 . 1 (2025) : 31-38 . |
| APA | 林咏园 , 税伟 , 冯洁 , 吴朝玮 , 江聪 . 基于高温现场实验的榕树遮阳环境与人体生理健康效益的影响研究 . | 中国园林 , 2025 , 41 (1) , 31-38 . |
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Abstract ：
Karst tiankeng is a typical terrestrial habitat island-like system, known as an oasis in a degraded karst landscape. However, we know little about the composition, structure, and life strategies of soil microbial communities in the karst tiankeng ecosystem. In this study, we use amplicon sequencing to investigate the soil bacteria and fungi of 26 karst tiankeng in two typical karst tiankeng groups. The results showed that the composition and structure of bacterial and fungal communities were significantly different at two dimensions (among and within the karst tiankeng group). Bacteria showed more sensitivity to variation in the karst tiankeng area and isolation than fungi. With the increase of karst tiankeng area and isolation, the bacterial life strategies shift from K-strategist to r-strategist, likely due to the changes in soil properties (total phosphorus, Ca, and soil water content). Abundant and rare taxa play different roles in karst tiankeng ecosystems; abundant taxa serve a key role in nutrient cycles and life strategy shifts by occupying the key status in networks. Considering the key role of soil microbes in ecosystems, more attention must be paid to the impact of habitat loss on soil microbial life strategies, particularly in the ecological impact of life strategies change of abundant and rare taxa
Keyword ：
abundant taxa abundant taxa ecological function ecological function fragmented habitat fragmented habitat karst tiankeng karst tiankeng microbial r-K selection theory microbial r-K selection theory
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| GB/T 7714 | Jiang, Cong , Qiu, Changchun , Shui, Wei . The life strategy of bacteria rather than fungi shifts in karst tiankeng island-like systems [J]. | APPLIED AND ENVIRONMENTAL MICROBIOLOGY , 2024 , 90 (12) . |
| MLA | Jiang, Cong et al. "The life strategy of bacteria rather than fungi shifts in karst tiankeng island-like systems" . | APPLIED AND ENVIRONMENTAL MICROBIOLOGY 90 . 12 (2024) . |
| APA | Jiang, Cong , Qiu, Changchun , Shui, Wei . The life strategy of bacteria rather than fungi shifts in karst tiankeng island-like systems . | APPLIED AND ENVIRONMENTAL MICROBIOLOGY , 2024 , 90 (12) . |
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Abstract ：
以云南沾益大毛寺原生天坑为例,获取坑内植物群落林木个体相对位置信息,进行角尺度、混交度、林层指数等林木空间结构参数与坑底植物群落空间格局分析,并运用点格局分析方法进行单个种群的空间分布特征以及不同种群间的空间关联性分析.结果表明:大毛寺原生天坑坑底植物群落在空间分布上呈现随机分布,林木物种呈中度混交,林木垂直分层虽较简单,但结构稳定,具有发育成熟的顶极森林群落的空间分布特征;坑底植物群落的种群主要呈聚集分布,种群间呈负关联,且处于同一垂直层次上种群间空间负相关性更强,垂直层次相差越大,空间竞争性越小,而随着空间范围的增大,空间负关联越弱;坑内生态系统具有较高的稳定性,是难得的物种自然栖息地和生态避难所,独特生境中形成的稳定植物群落结构在喀斯特地区生态恢复研究中具有重要的借鉴意义和导向作用.
Keyword ：
天坑 天坑 植物群落 植物群落 沾益 沾益 空间分布 空间分布
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| GB/T 7714 | 税伟 , 陈毅萍 , 简小枚 et al. 喀斯特原生天坑植物群落空间格局特征——以云南沾益天坑为例 [J]. | 应用生态学报 , 2018 , 29 (6) : 1725-1735 . |
| MLA | 税伟 et al. "喀斯特原生天坑植物群落空间格局特征——以云南沾益天坑为例" . | 应用生态学报 29 . 6 (2018) : 1725-1735 . |
| APA | 税伟 , 陈毅萍 , 简小枚 , 江聪 , 王前锋 , 郭平平 . 喀斯特原生天坑植物群落空间格局特征——以云南沾益天坑为例 . | 应用生态学报 , 2018 , 29 (6) , 1725-1735 . |
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