Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2025.01.053
Junliang Qiu , Xiankun Yang , Zihao Zheng , Paolo Tarolli
{"title":"High-resolution mapping of China’s flooded croplands","authors":"Junliang Qiu , Xiankun Yang , Zihao Zheng , Paolo Tarolli","doi":"10.1016/j.scib.2025.01.053","DOIUrl":"10.1016/j.scib.2025.01.053","url":null,"abstract":"<div><div>Climate change and the increasing frequency of floods have undermined China’s food security. Creating detailed maps of flooded croplands is essential to improve prevention and adopt effective adaptation initiatives. Previous large-scale flood mapping efforts were hampered by limited meteorological and hydrological data, and the susceptibility of optical satellite images to cloud cover, leading to high uncertainty when downscaled to the cropland-scale. Here, using 4968 near-real-time (NRT) Sentinel-1 SAR (S1) images (spatial resolution: 10 m), we generated China’s first set of high-resolution flooded cropland maps covering the period from 2017 to 2021. Our results demonstrate that croplands accounted for 43.8% to 49.8% of China’s total flooded areas (ranging from 82,175 km<sup>2</sup> to 122,037 km<sup>2</sup>). We also created high-resolution flood maps specifically for rice and maize crops. The inundated rice areas ranged from 8428 km<sup>2</sup> to 22,123 km<sup>2</sup>, accounting for 22.34% to 41.91% of the annual flooded croplands, or 2.82% to 7.45% of the annual rice cropland. In comparison, the inundated maize cropland fluctuated from 2619 km<sup>2</sup> to 5397 km<sup>2</sup>, representing 5.38% to 13.56% of the annual flooded croplands. Our findings revealed extensive floods in rural areas, highlighting the urgent need to prioritize flood prevention and mitigation efforts in such regions. In light of China’s allocation of an additional 1-trillion-RMB treasury bonds for water infrastructure projects, the high-resolution flood maps can be used to select sites for flood control projects, and evaluate the impact of flooding on crop yields and food security, thus targeting poverty alleviation in rural areas of China.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1165-1173"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2025.01.056
Shuren Wang , Qinglong L. Wu , Huabing Li , Rujia He , Congcong Jiao , Mengyu Qin , Ye Deng , Guoqing Zhang , Dayong Zhao , Jin Zeng
{"title":"Bioclimatic zonation and spatial-scale dependence of lacustrine microbial assemblages","authors":"Shuren Wang , Qinglong L. Wu , Huabing Li , Rujia He , Congcong Jiao , Mengyu Qin , Ye Deng , Guoqing Zhang , Dayong Zhao , Jin Zeng","doi":"10.1016/j.scib.2025.01.056","DOIUrl":"10.1016/j.scib.2025.01.056","url":null,"abstract":"<div><div>Bioclimatic zonation is critical for understanding how climate shapes biodiversity and biogeographic patterns. However, existing studies have primarily focused on macroorganisms, leaving microbial communities largely underexplored. This study seeks to address this gap through extensive sampling of bacterial communities from 931 sediment samples across 199 lakes in China. Based on the obtained data, we identified five distinct lacustrine microbial bioclimatic zones, each showing significant differences in multiple facets of bacterial diversity (i.e., alpha, beta, and gamma diversity) and clear bioclimatic zone–dependent microbial biogeographic patterns. Notably, the alpha and beta diversity of the bacterial communities showed opposing patterns across bioclimatic zones. Dominant environmental variables—specifically mean annual temperature, elevation, lake hydrological variables, and sediment pH—exerted contrasting effects on the alpha and beta diversity and played critical roles in shaping microbial community distribution at different spatial scales. At continental scales, predominant geographic and climatic variables dictated the patterns of bioclimatic zonation of lacustrine microbial communities. At regional scales, hydrological variables influenced the dispersal capacity of lake microbes, whereas sediment physicochemical variables were the most important selection factors shaping local microbial communities. Furthermore, our findings indicated that bioclimatic boundaries substantially enhanced the contribution of variable selection on bacterial community assembly and led to marked changes in distance–decay relationships in community dissimilarities. Overall, this study established a continental bioclimatic framework for lacustrine microbial communities, clarifying how environmental variables control microbial distributions across spatial scales, providing new insights into microbial biogeography, and advancing our knowledge about biodiversity under future climate change scenarios.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1152-1164"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2025.02.013
Xin Guo , Jiakang Huo , Wanwei Dai , Tong Wang , Han Xiao , Wenjing Zhao , Xuanyu Shi , Xueheng Wang , Yang Gao , Zhi Li , Rui Zhan , Wenli Xu , Jian Du , Erdan Dong
{"title":"Global rehabilitation research equality index across health conditions during 1990–2019: an alignment analysis between bibliographic and epidemiological data","authors":"Xin Guo , Jiakang Huo , Wanwei Dai , Tong Wang , Han Xiao , Wenjing Zhao , Xuanyu Shi , Xueheng Wang , Yang Gao , Zhi Li , Rui Zhan , Wenli Xu , Jian Du , Erdan Dong","doi":"10.1016/j.scib.2025.02.013","DOIUrl":"10.1016/j.scib.2025.02.013","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1057-1061"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143522241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2024.11.040
Yufei Li , Zhuang Yang , Kang Li , Chenkun Yang , Long Lei , Jiacheng Li , Junjie Zhou , Huanteng Hou , Hai Liu , Xiaohu Xiong , Chuansong Zhan , Shuangqian Shen , Xianqing Liu , Mohamed Maher , Hasan Ahmad , Alisdair R. Fernie , Jie Luo
{"title":"Two major rice loci determine rice-staple food populations differences in vitamin B1 deficiency levels","authors":"Yufei Li , Zhuang Yang , Kang Li , Chenkun Yang , Long Lei , Jiacheng Li , Junjie Zhou , Huanteng Hou , Hai Liu , Xiaohu Xiong , Chuansong Zhan , Shuangqian Shen , Xianqing Liu , Mohamed Maher , Hasan Ahmad , Alisdair R. Fernie , Jie Luo","doi":"10.1016/j.scib.2024.11.040","DOIUrl":"10.1016/j.scib.2024.11.040","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1046-1050"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142821662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2025.01.012
Zhiwen Wang , Shangda Li , Zhaoxing Wang , Shumei Chen , Fei Wang , Jian Zhang
{"title":"Designing homochiral metal–organic frameworks with ultrahigh surface areas and stability for practical applications","authors":"Zhiwen Wang , Shangda Li , Zhaoxing Wang , Shumei Chen , Fei Wang , Jian Zhang","doi":"10.1016/j.scib.2025.01.012","DOIUrl":"10.1016/j.scib.2025.01.012","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1038-1041"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2025.02.006
He Li , Qianru Li , Yuanjie Zheng , Siyi He , Yi Teng , Mengdi Cao , Nuopei Tan , Jiachen Wang , Tianyi Li , Tingting Zuo , Ziming Gao , Kai Li , Wanqing Chen
{"title":"Profiles and disparities of the global cancer and subtypes burden among adults aged 65 years and older: changing patterns in incidence and mortality, 1990–2021","authors":"He Li , Qianru Li , Yuanjie Zheng , Siyi He , Yi Teng , Mengdi Cao , Nuopei Tan , Jiachen Wang , Tianyi Li , Tingting Zuo , Ziming Gao , Kai Li , Wanqing Chen","doi":"10.1016/j.scib.2025.02.006","DOIUrl":"10.1016/j.scib.2025.02.006","url":null,"abstract":"<div><div>This study aimed to elucidate the global temporal and geographic characteristics of 29 cancers in older people aged ≥ 65 years, based on data from the Global Burden of Disease Study 2021. The average annual percentage changes (AAPCs) were calculated to estimate temporal trends of age-standardized incidence rates (ASIRs) and age-standardized mortality rates (ASMRs). Globally, there was an increase of 8.52 million cancer cases and 3.16 million cancer deaths among older people from 1990 to 2021. The ASIR of cancers combined presented an annually increased trend (AAPC: 0.49%), and regions with high sociodemographic index (SDI) experienced the highest increase (AAPC: 0.94%). Over the same period, the ASMR of cancers combined annually decreased (AAPC: −0.40%) globally, whereas regions with low SDI (AAPC: 0.32%) and low-middle SDI (AAPC: 0.48%) exhibited significantly increased ASMRs. Prostate cancer, lung cancer, and colorectal cancer were the three most common cancers for older people globally, and decreased relative inequalities were observed in higher-SDI countries from 1990 to 2021. For these three cancers, concentration index of ASMR respectively decreased from 0.26 to 0.06, from 0.20 to 0.17, and from 0.24 to 0.18. In contrast, the ASIR and ASMR of these cancers exhibited significant upward trends in lower-SDI regions. Our findings revealed that cancer burden for older people presented disparities globally, where higher-SDI countries faced a greater burden of cancer incidence and lower-SDI countries experienced an upward trend in cancer mortality. More attention should be given to prostate cancer, lung cancer, female breast cancer, and gastrointestinal cancers, especially in lower-SDI regions.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1139-1151"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Science BulletinPub Date : 2025-04-15DOI: 10.1016/j.scib.2025.01.037
Ding-Heng Zhou , Shan-Yong Chen , Yan-Zhao Liu , Hong Zhang , Jun-Mei Li , Qian Zhou , Fei-Fan Xiang , Xiao-Qi Yu , Kun Li
{"title":"Thioketal-photocage: a universal modification strategy for constructing new photochemical tools for real-time imaging in living cells","authors":"Ding-Heng Zhou , Shan-Yong Chen , Yan-Zhao Liu , Hong Zhang , Jun-Mei Li , Qian Zhou , Fei-Fan Xiang , Xiao-Qi Yu , Kun Li","doi":"10.1016/j.scib.2025.01.037","DOIUrl":"10.1016/j.scib.2025.01.037","url":null,"abstract":"<div><div>Photoactivable fluorescent probes (photocages) are powerful tools for studying biological processes in living cells. We report a novel class of photodegradable thioketals that serve as photo-responsive elements and apply them to xanthene dyes to design photocages for live cell imaging. Compared with traditional thioketals, these compounds demonstrate the ability to undergo deprotection upon exposure to ultraviolet–visible light, independent of photosensitizers or external oxidants and relying solely on dissolved oxygen within the solvent. This photoreaction results in a remarkable 68-fold increase in fluorescence intensity. We verify that the uncaged product is the corresponding ketone, with high-performance liquid chromatography analysis, which indicates a yield of up to 80%. Furthermore, we extend this modification strategy to xanthene dyes substituted with various heteroatoms and confirm the universal applicability of this photoactivable strategy. These dyes exhibit good stability against reducing agents and metal ions, with carbon and silicon xanthene photocages also demonstrating commendable dark stability against reactive oxygen species. We apply these photocages for bioimaging and further modify them for selective labeling, activation, and imaging of specific organelles and intracellular proteins within living cells. This modification strategy offers high spatiotemporal selectivity and holds promise as a powerful tool for advanced biological studies.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 7","pages":"Pages 1087-1096"},"PeriodicalIF":18.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}