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Functional Ecology, Volume 40, Issue 6, Page 1725-1739, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Root exudates play a key role as signals and nutrients in mediating plant–microbe communication. However, critical knowledge gaps remain regarding how root exudates mediate soil–microbe–plant interactions to regulate crop yield under long‐term straw mulching combined ...
Jiajie Song +7 more
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Methods in Ecology and Evolution, Volume 17, Issue 6, Page 1896-1909, June 2026.Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
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Shuitu Baochi Xuebao, 2008 通过对比分析坡面水流的水动力参数与径流溶质迁移量间的关系,研究了不同地表状况下黄土坡面土壤溶质随径流迁移的水动力学特性,以求深入了解和认识坡面土壤侵蚀中溶质随径流迁移的本质机理。研究结果表明:不同坡面地表状况下,糙率系数和平均水深之比(n/h)与侵蚀过程中随径流迁移的溶质存在一定的关系,径流溶质Br-平均浓度、径流溶质Br-的平均流失率以及径流溶质Br-的相对流失量均随n/h的增加而减小。径流溶质Br-的平均流失率以及径流溶质Br-的相对流失量与水流水动力学参数n/h具有指数关系。
郭太龙, 王全九
doaj
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
, 1958 具有剪应力的自由湍流到下游相当远的地点由于能量的逐渐耗损将衰变成为类似均匀各向同性湍流的后期运动。如同处理后一种流动问题一样,我们现在根据湍流是由涡旋所组成的概念来求自由湍流的后期运动解。求涡旋运动解的动力学的基础是湍流速度涨落方程。在后期湍流场中湍流Reynolds数比较小,故方程中的非线性项可以略去。再考虑到组成湍流的涡旋尺寸比较小,在每个涡旋范围内平均湍流速度和它的坐标梯度可以近似地认为和坐标的改变无关。我们求线性化了之后的湍流速度涨落方程如下的近似解 ...
蔡树棠, 周培源
core
Dianci bileiqi, 2014 根据城轨供电系统的特点分析了雷击城轨整流变电站附近杆塔时对整流变电站的影响方式,认为与铁轨并联的均流线和接触网末端的绝缘配置会引起雷击杆塔时过电压入侵到整流变电站,而整流变电站避雷器接地散流效果和均压效果不好是引起整流变电站事故的主要原因。针对避雷器接地和均流线接地散流和均压不良设计了新的接地装置,并用ANSYS软件对比分析了新的接地装置和原有接地装置的接地性能,分析结果表明:新型接地装置的均压效果相对于原有接地装置的均压效果其最大地电位减小了28 ...
张东, 陶凤源, 董新胜
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Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
, 2022 我们将不可压缩均匀湍流速度梯度的二阶和三阶不变量关系(Betchov R.,J.Fluid Mech.1,497 (1956))推广到了可压缩均匀湍流。我们利用直接数值模拟数据验证了推广的不变量关系,并发现即使对于非均匀的可压缩混合层,这些不变量关系也是近似成立的。我们还讨论了在小尺度近似各向同性的可压缩流动中,利用这些不变量关系和速度梯度矩的一部分分量,来决定速度梯度二阶和三阶矩所有分量的方法。这类方法有助于我们由实验数据,比如stereo ...
徐海涛 +4 more
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Zhendong Ceshi yu Zhenduan为了研究在流固耦合效应下不同来流对超高层建筑风效应特性的影响，采用分离涡方法（detached eddy simulation，简称DES）对深圳平安金融大厦气弹模型进行全尺寸数值风洞模拟，利用湍流脉动生成（discretizing and synthesizing random flow field generation，简称 DSRFG）方法模拟大气边界层湍流和均匀来流，得到模型的风压和风致响应结果，并与风洞试验和现场实测数据进行对比。研究结果表明 ...
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Shuitu Baochi Xuebao, 2017 选取昆明市松华坝水源区典型小流域——迤者小流域为试验区，通过布设标准径流小区，在2009—2015年对坡耕地产流产沙及氮、磷流失情况进行长期的野外观测研究，从年际尺度上来探讨等高反坡阶对于坡耕地产流产沙及氮、磷等养分流失的影响。结果表明：等高反坡阶对于径流和泥沙的削减效果均较为明显，年平均减流率为50.64%，年平均减沙率74.99%，减沙率显著大于减流率；等高反坡阶对于径流和泥沙中氮、磷均有较为明显的削减效果，平均每年可以削减68.75%的氮流失和82.16%的磷流失 ...
王帅兵, 王克勤
doaj