#甲烷增长率

估算中国生猪养殖碳排放时空差异及影响因素，发现碳排放下降但存在空间溢出效应。

研究尼日利亚阿布贾30年人口增长与土地利用变化的环境影响。

Earth system models that include interactive chemistry provide a mechanistic understanding of the hydroxyl radical (OH) sources and sinks. However, their use is often limited in the estimation of the global methane (CH 4 ) budget. We conduct 20-year emission-driven methane simulations (2003–2022) with the Community Earth System Model Version 2.2 (CESM2.2) nudged to different meteorological datasets and input various chemical emissions dataset, including the Seventh Coupled Model Intercomparison Project (CMIP7). Our evaluation of the different model configurations includes comparison with in-situ observations from the NOAA Marine Boundary Layer Reference and airborne field studies, as well as ground-based and satellite remote sensing observations of carbon monoxide (CO) and CH 4 . We find that the model configurations with a lower OH abundance have improved skill in reproducing both CO and CH 4 spatial and temporal variations, including the CH 4 annual growth rate. We quantify the OH impacts on the CH 4 growth rate and derive a comprehensive attribution of OH changes to Earth System chemical processes. Despite an interannual variability lower than 4 %, changes in OH explain around 30 % of the interannual variability of the CH 4 growth throughout the 2003–2022 period. The OH changes arise from both internal variability – via biogenic and lightning emission responses – and prescribed surface emissions. We find that OH is well buffered against chemistry perturbations, as increased chemical complexity raises the OH recycling probability. Consequently, studies relying on simplified and prescribed OH representations may neglect these complex chemical feedbacks and overestimate the role of OH changes in driving the CH 4 growth rate.

上海市农科院自主育成的粳稻新品种'太安1号'种植面积已达5万亩，眼下正长势喜人，预计10月底开镰收割。该品种前不久斩获第七届全国优质稻品种食味品质鉴评金奖，新米上市后将供应全市380多所学校的学生餐。'太安1号'直链淀粉含量仅8.4%（普通粳米12—16%）、整精米率达72%以上（其他优质香米仅65%）、抗病能力强、生育期约149天比同类型优质粳稻早熟7天，新米可以抢先上市。

江苏省农业机械试验鉴定站、江苏省农业机械技术推广站定于10月10日（周六）在南京市江北新区组织北斗农用智能终端田间试验验证，验证接入苏农云的犁耕深翻监测终端与服务平台数据对接工作。申报企业需具备犁耕深翻作业面积、作业质量（深度）监测、作业照片上传等功能且数据能够直联苏农云平台；10月8日12:00前提交报名材料，第一批未通过的可申请第二次验证，不收取任何费用。

8 月 26 日至 27 日，农经所副所长亢志华与畜牧所猪育种与生产创新团队负责人程金花联合带队，围绕生猪全产业链建设与产能调控主题，赴中粮家佳康（江苏）有限公司、农信数智科技有限公司和盐城康农牧家庭农场开展专题调研。调研组在中粮家佳康考察全产业链产能配置、"亚麻籽"品牌溢价、MES 系统升级与绿色发展；在农信数智调研生猪产业数字化转型系统解决方案、数据贯通瓶颈及跨部门信息共享机制；在康农牧家庭农场了解中等规模养殖场产能调控和智慧养殖落地情况。

上海市农科院生物所中国(上海)国际藜麦创新中心选育的菜用藜麦专用品种沪藜1号、基因中心选育的浩农1号、沪芊、缤纷1号等系列国产生菜新品种在山东青岛举行的全国名特优新农产品产销对接活动重点展示。沪藜1号目前在崇明、宝山、奉贤累计示范种植500余亩次。

近日,广东省农科院党委副书记、院长朱立学带队赴河北省农林科学院开展调研交流,院属相关单位(部门)负责同志及专家参加。在石家庄果树研究所,调研组实地参观所史展厅,考察各类果树试验园区,与副所长杨素苗等围绕果树新品种选育、篱壁式栽培模式、果园宜机化改造、设施装备应用等方面进行深入交流。考察鹿泉大桓渊苹果基地篱壁式栽培模式、有机种植管理、功能酵素应用等创新实践。