一 | 北京8月17日电（记者樊曦）记者17日从中国国家铁路集团有限公司获悉，今年以来，铁路建设优质高效推进，1至7月全国铁路完成固定资产投资4406亿元，同比增长1.8%，现代化铁路基础设施体系加快构建，铁路建设投资拉动效应显著，为区域经济社会发展注入强劲动能。 国铁集团相关部门负责人介绍，今年以来，国铁集团聚焦服务支撑国家重大战略和区域经济社会发展，扎实推进强网强链行动，科学有序推进铁路规划建设，持续提升路网规模质量，推动重点工程项目取得积极进展。 SACRAMENTO, Calif. -- California officials on Thursday faulted communities in a stretch of the crop-rich San Joaquin Valley for failing to develop a plan to adequately protect groundwater in the often drought-plagued state.The state's water resources board set an April hearing to determine whether the Tulare Lake Subbasin in the heart of California's farm country should be placed on probation. It is the first time the state has made such a move, and the first step in a lengthy process that could end up requiring large farms in the area to report groundwater use and pay fees.California is starting to regulate the pumping of groundwater after years of drought and overpumping left rural residents’ wells dry and led to subsidence, or the sinking of land, in some communities. Both issues have affected the largely agricultural region, which is home to 145,000 people, and stand to worsen absent revisions to the local groundwater plan, officials said.“This is an urgent issue,” said Natalie Stork, an official at the State Water Resources Control Board. “There are urgent impacts from continued overdraft in these basins.”The state enacted a 2014 law tasking communities with forming groundwater agencies and making plans to manage the resource sustainably, starting with the most critically overdrafted basins, including the Tulare Lake Subbasin.Five groundwater agencies joined together come up with a plan for the subbasin where farmers grow cotton, almonds and pistachios. But the plan was one of six that California's Department of Water Resources deemed inadequate this year.Now, the State Water Resources Control Board will hold a hearing April 16 to decide whether to place the Tulare Lake Subbasin on probation. If it does, large pumpers would report their groundwater usage and pay fees while the local agencies draft a new plan for the basin. If they don't, the board could eventually implement its own plan.Many communities rely mainly or solely on groundwater for drinking water and farmers count on it for irrigation, especially in a drought. California muddled through a spell of dry years until a series of winter storms drenched the state and dumped massive amounts of snow in the mountains. When the snow melted, it flowed down to form the reemerging Tulare Lake, which covered vast stretches of farmland with water. California has long tended toward wet and dry periods, but scientists at University of California, San Diego’s Scripps Institution of Oceanography have said they expect climate change will lead to drier dry years and wetter wet years.。
二 | 近期，广州至湛江高铁佛山站开通运营，西安至安康高铁启动全线拉通试验，哈尔滨至铁力至伊春高铁联调联试圆满完成，雄安新区至忻州高铁山西段完成铺轨。 与此同时，国铁集团组织各参建单位统筹建设资源，一批铁路控制性工程建设稳步推进。在焦平铁路沁河特大桥跨沁河主墩施工中，中铁二十三局建设者有效应对水下厚流沙层及超长桩灌注等挑战，完成16根长达108米的超长桩基施工；在浙江，由中铁十一局承建的衢丽铁路衢江特大桥跨沪昆铁路转体连续梁加快建设，连续梁转体重量达2.4万吨，需跨越既有沪昆铁路；在陕西，由中铁十四局承建的延榆铁路九里山隧道掘进突破7000米，全隧位于黄土高原丘陵沟壑区，最浅埋深仅约2米，施工难度大、安全风险高。 国铁集团相关部门负责人表示，下一步，国铁集团将统筹安排新线规划建设与普速铁路提质扩能，统筹铁路规划、建设与运营，加快推进重点项目前期工作，科学优化在建项目施工组织，持续提升铁路投资质量和效益，确保完成全年建设任务，助力经济社会高质量发展。
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