Nature Climate Change最新文献_第6页

Canopy structure regulates autumn phenology by mediating the microclimate in temperate forests 树冠结构通过调节温带森林的小气候来调节秋季物候变化

IF 29.6 1区地球科学

Nature Climate Change Pub Date : 2024-10-14 DOI: 10.1038/s41558-024-02164-2

Xiaoyong Wu, Chunyue Niu, Xiaoqiang Liu, Tianyu Hu, Yuhao Feng, Yingyi Zhao, Shuwen Liu, Zhonghua Liu, Guanhua Dai, Yao Zhang, Koenraad Van Meerbeek, Jin Wu, Lingli Liu, Qinghua Guo, Yanjun Su

{"title":"Canopy structure regulates autumn phenology by mediating the microclimate in temperate forests","authors":"Xiaoyong Wu, Chunyue Niu, Xiaoqiang Liu, Tianyu Hu, Yuhao Feng, Yingyi Zhao, Shuwen Liu, Zhonghua Liu, Guanhua Dai, Yao Zhang, Koenraad Van Meerbeek, Jin Wu, Lingli Liu, Qinghua Guo, Yanjun Su","doi":"10.1038/s41558-024-02164-2","DOIUrl":"10.1038/s41558-024-02164-2","url":null,"abstract":"Autumn phenology plays a critical role in shaping the carbon sequestration capacity of temperate forests. Notable local-scale variations in autumn phenology have drawn increasing attention recently, potentially introducing substantial uncertainty when predicting temperate forest productivity. Yet the underpinning mechanisms driving these variations remain inadequately elucidated. Here we observed significant and consistent relationships between canopy structure and autumn phenology across six temperate forest sites, induced by the regulation effect of canopy structure on microclimate conditions. Incorporating the identified ‘canopy structure–microclimate–autumn phenology’ pathway into existing autumn phenology models significantly improves the prediction accuracy and reduces the projected delay in the start of autumn over the remainder of the century. These findings offer a new perspective for interpreting the local variations of autumn phenology in temperate forests and emphasize the urgent need to integrate the identified pathway into the Earth system and vegetation models, especially considering the asynchronous changes of macroclimate and microclimate conditions. The authors demonstrate a significant influence of canopy structure on autumn phenology in temperate forests, mediated by microclimate regulation. Incorporating this relationship into autumn phenology models enhances their prediction accuracy and reduces previously projected delays in autumn phenology.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"14 12","pages":"1299-1305"},"PeriodicalIF":29.6,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relaxing fertility policies and delaying retirement age increase China’s carbon emissions 放宽生育政策和延迟退休年龄会增加中国的碳排放量

IF 29.6 1区地球科学

Nature Climate Change Pub Date : 2024-10-11 DOI: 10.1038/s41558-024-02145-5

Ling Tang, Junai Yang, Jiali Zheng, Xinlu Sun, Lu Cheng, Kehan He, Ling Li, Jinkai Li, Wenjia Cai, Shouyang Wang, Paul Drummond, Zhifu Mi

引用次数: 0

Maize breeding for smaller tassels threatens yield under a warming climate 在气候变暖的情况下，培育小穗玉米会威胁产量

IF 29.6 1区地球科学

Nature Climate Change Pub Date : 2024-10-11 DOI: 10.1038/s41558-024-02161-5

Yingjun Zhang, Xin Dong, Hongyu Wang, Yihsuan Lin, Lian Jin, Xuanlong Lv, Qian Yao, Baole Li, Jia Gao, Pu Wang, Baobao Wang, Shoubing Huang

{"title":"Maize breeding for smaller tassels threatens yield under a warming climate","authors":"Yingjun Zhang, Xin Dong, Hongyu Wang, Yihsuan Lin, Lian Jin, Xuanlong Lv, Qian Yao, Baole Li, Jia Gao, Pu Wang, Baobao Wang, Shoubing Huang","doi":"10.1038/s41558-024-02161-5","DOIUrl":"10.1038/s41558-024-02161-5","url":null,"abstract":"Breeding programmes have increased the yields of major crops, including maize (Zea mays L.), but the suitability of optimized traits to future climates remains unclear. Here, by comparing the responses of 323 elite maize inbred lines from different breeding eras under natural field conditions, we show that while newer lines exhibit higher grain yield than the early released lines under standard growth, the bred trait of reduced tassel size increases the susceptibility of newly released lines to high temperature during flowering. We identified a potential threshold for spikelets per tassel (~700), over which maize can produce a stably high seed set ratio under warm conditions, and show that small-tassel (<700 spikelets per tassel) genotypes are now unsuitable in 23.7% of global maize-growing regions. Our work highlights the need to consider possible climate change maladaptation resulting from breeding programmes. By comparing the responses of 323 elite maize lines from different breeding eras, the authors demonstrate that reduced tassel size in newer lines can lead to increased susceptibility to high temperature. This highlights the potential for traits optimized by breeding to lead to climate maladaptation.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"14 12","pages":"1306-1313"},"PeriodicalIF":29.6,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the impacts of fertility and retirement policies on China’s carbon emissions 评估生育和退休政策对中国碳排放的影响

IF 29.6 1区地球科学

Nature Climate Change Pub Date : 2024-10-11 DOI: 10.1038/s41558-024-02162-4

Ling Tang, Junai Yang, Jiali Zheng, Xinlu Sun, Lu Cheng, Kehan He, Ling Li, Jinkai Li, Wenjia Cai, Shouyang Wang, Paul Drummond, Zhifu Mi

{"title":"Assessing the impacts of fertility and retirement policies on China’s carbon emissions","authors":"Ling Tang, Junai Yang, Jiali Zheng, Xinlu Sun, Lu Cheng, Kehan He, Ling Li, Jinkai Li, Wenjia Cai, Shouyang Wang, Paul Drummond, Zhifu Mi","doi":"10.1038/s41558-024-02162-4","DOIUrl":"10.1038/s41558-024-02162-4","url":null,"abstract":"The gradual adjustment of fertility and retirement policies in China has social benefits in terms of coping with population aging. However, the environmental consequences of these policies remain ambiguous. Here we compile environmentally extended multiregional input–output tables to estimate household carbon footprints for different population age groups in China. Subsequently, we estimate the age-sex-specific population under different fertility policies up to 2060 and assess the impacts of fertility and retirement policies on household carbon footprints. We find that Chinese young people have relatively higher household carbon footprints than their older counterparts due to differences in income by age group. Relaxing fertility policies and delaying retirement age are associated with an increase in population (and labour supply) and thus increases in household carbon footprints, with the majority of these increases from the fertility side. These results may help policymakers understand interactions among those measures targeting population aging and climate action. Demographic policies to address population aging could have major climate consequences, and such interaction effect is context dependent. This study shows that relaxing the fertility policy and delaying retirement age in China could lead to an increase in total and per capita household carbon footprint.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"14 12","pages":"1261-1267"},"PeriodicalIF":29.6,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41558-024-02162-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How to align climate ambition and economic equality 如何使气候目标与经济平等相一致

IF 29.6 1区地球科学

Nature Climate Change Pub Date : 2024-10-10 DOI: 10.1038/s41558-024-02152-6

引用次数: 0

Failures in railway systems 铁路系统故障

IF 29.6 1区地球科学

Nature Climate Change Pub Date : 2024-10-07 DOI: 10.1038/s41558-024-02157-1

Lingxiao Yan

引用次数: 0

A low chance of collapsing ice cliffs 冰崖崩塌的几率很低

IF 29.6 1区地球科学