Results 21 to 30 of about 13,580 (163)
Shuitu Baochi Xuebao, 2022 为探索施用有机肥对咸水灌溉农田耕层土壤水稳性团聚体的调控效应,在麦玉两熟制农田咸水灌溉(1,2,4,6 g/L)配施有机肥(OF)和未施有机肥(NOF)长期定位试验的基础上,研究了2018-2019年不同处理对农田耕层0-20 cm土壤盐度(EC1:5)、土壤有机质(SOM)含量和水稳性团聚体稳定性的影响。结果表明:咸水灌溉有增加耕层土壤盐度,降低SOM含量和水稳性团聚体稳定性的趋势,随灌溉水矿化度的升高,SOM含量、>0.25 mm水稳性大团聚体质量分数(WR0.25)、团聚体平均重量直径(MWD ...
王艺乔 +7 more
doaj
Shuitu Baochi Xuebao, 2016 为探讨祁连山东段不同高寒灌丛草地的土壤抗蚀性特征，采用野外调查和室内试验的方式，对东祁连山金露梅、柳、杜鹃3类高寒灌丛草地的土壤抗蚀性特征及其影响因素进行了研究。结果表明：不同灌丛草地土壤水稳性团聚体主要以＞0.5 mm的大粒径水稳性团聚体为主，土壤团聚结构破坏率表现为：柳灌丛草地＞杜鹃灌丛草地＞金露梅灌丛草地；土壤水稳性指数依次为：杜鹃灌丛草地（97.1%）＞柳灌丛草地（96.9%）＞金露梅灌丛草地（95.8%）；土壤抗蚀指数表现为：杜鹃灌丛草地最大（95.0%），金露梅灌丛草地最小（92.9 ...
赵锦梅 +4 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Efficient and durable bifunctional electrocatalysts are vital for scalable water electrolysis. Here, we realize cobalt‐vacancy (Covac) engineering in CoFeP supported on N,P‐codoped carbon nanocages (Co1‐vacFeP/NPC) through a simple route comprising a CoFe Prussian blue analog precursor, phosphidation–pyrolysis, tannic‐acid etching, and a ...
Yuan‐Liang Yuan +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2019 为分析桉树林土壤含水量时间稳定性特征，选取桉树林典型坡面，测量坡面9个样点5年土壤含水量，基于所测数据采用相对差分法和Spearman秩相关系数法分析土壤含水率的时空变异性和时间稳定性。结果表明，研究区坡面5年的表层平均土壤含水率为21.81%，在空间上表现为较弱的变异性，在时间上具有中等程度变异性。各年平均土壤含水率相关系数偏低，土壤含水率的空间模式在观测时间上的相似性较弱，其平均相对差分变化范围为-7.08%~5.03%，相对差分标准差和时间稳定性指数的平均值分别为5.73%和6.58 ...
兰秀 +7 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2001 应用三室根箱装置 ,研究了接种丛枝菌根真菌 Glomus mosseae和 Glomus versiform对玉米根分泌物以及菌根真菌外生菌丝对沙土的水稳性大团聚体形成的作用。结果表明 :接种 Glom us mosseae和 Glomus versiform提高了玉米根系分泌物的总量 ,进而增加了根系粘结的土壤重量。菌根菌丝对土壤中 5～ 2 mm水稳性大团聚体形成的贡献为 10 0 % ;在土壤中菌根菌丝的密度分布与 2～ 1mm水稳性团聚体的含量分布是一致的 ...
冯固 张玉凤 等
doaj +2 more sources
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Expanding near‐infrared (NIR) spectral response and utilizing ultraviolet (UV) photons are effective strategies for enhancing the power conversion efficiency (PCE) of lead halide perovskite solar cells (PSCs). However, the range of NIR spectral response extension and the utilization of UV light for devices are not enough, and the loss of ...
Li He +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2020 为揭示再生水不同灌溉模式下土壤结构性质及导水性能的差异。通过室内模拟土柱入渗试验，以清水灌溉为对照（CK），研究了再生水持续灌溉（RW）、再生水—清水混合灌溉（RW-2）及再生水—清水交替灌溉（ARW）3种灌溉模式对土壤容重、总孔隙度、团聚体稳定性、入渗率及饱和导水率的影响。结果表明：相比CK，各处理容重呈降低趋势，总孔隙度增加，但差异均不显著；再生水灌溉促进潮土>1 mm粒级团聚体向1 mm粒级水稳性团聚体含量对潮土结构稳定性贡献最大；再生水3种灌溉模式下潮土入渗率分别显著增长80.00%~260 ...
胡廷飞, 王辉, 谭帅
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT As a core component in the electrochemical water splitting system, the cathode catalyst is capable of boosting the kinetics of the hydrogen evolution reaction (HER), while the scarcity and expenditure of current noble metal‐based electrocatalysts seriously restrict the large‐scale commercial development of hydrogen manufacturing devices. Here,
Haiyan He +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li +4 more
wiley +1 more source