Results 11 to 20 of about 23,831 (217)
为明晰重庆笋溪河流域河岸带水体、土壤和植物的氮磷特征及其影响因素,采用描述性统计、聚类分析、相关分析和冗余分析的方法,探讨三峡库尾小流域河岸带水体、土壤和植物的氮、磷含量特征、空间分布和各圈层氮磷的相关性及水体氮磷的影响因素。结果表明:(1)河岸带受河流区段影响,从上游到下游,水体氮磷与土壤全氮的含量先减小后增大,下游存在明显的农业氮输入,而土壤硝态氮、全磷和有效磷与植物氮磷的含量逐渐增加;(2)河岸带水体总氮与植物不同营养器官的氮含量均呈显著正相关 ...
孟海 +4 more
doaj
Aeroacoustic differences between the Japanese fricatives [ɕ] and [ç] [PDF]
To elucidate the linguistic similarity between the alveolo-palatal sibilant [ɕ] and palatal non-sibilant [ç] in Japanese, the aeroacoustic differences between the two consonants were explored via experimentation with participants and analysis using simplified vocal tract models.
Tsukasa, Yoshinaga +2 more
openaire +2 more sources
Este artículo pretende ser una respuesta unificadora ante la falta de conexión entre los enfoques sincrónico y diacrónico basados en el alófono [ç] de /x/ en el español de Sudamérica. Se llevaron a cabo dos experimentos: un análisis acústico basado en habla de laboratorio, semidirigida y espontánea, y un experimento de percepción (tarea de ...
openaire +1 more source
以陆生植物美人蕉(Canna generalis)、紫背万年青(Rhoeo discolor)为对象,研究了其不同的种植方式对净化富营养化水体中磷的影响.结果表明,美人蕉、紫背万年青的双倍生物量组对水体中TP、DTP和DIP的去除率与它们的单倍生物量组呈显著性差异,植物对水体中P的去除效果随着植物生物量的适度增加而提高.两种陆生植物的复合种植体系对TP、DTP和DTP的去除率和单一种植体系差别不明显,说明美人蕉、紫背万年青的不同种植体系对水体中TP、DTP和DIP去除率的影响不大.从美人蕉 ...
CHENLi(陈力) +4 more
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Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu +9 more
wiley +1 more source
Recovering Critical Elements From Wastewater for Battery Materials: A Review
ABSTRACT Driven by global carbon neutrality goals, the transition toward a circular economy and sustainable resource management has become increasingly imperative. Given the indispensable role of battery technologies in modern energy storage systems, strategic elements such as lithium (Li), cobalt (Co), and nickel (Ni)—identified by the European ...
Ting Lei +5 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric ratios of carbon (C), nitrogen (N) and phosphorus (P) serve as important indicators for assessing nutrient balance in forest ecosystems, but their relationships with photosynthetic dynamics require deeper characterization.
Minghao Chen +9 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil organic nitrogen (SON) transformation is critical for global nutrient cycling and ecosystem productivity, yet how its responsiveness to climate change differs across diverse land use types remains poorly resolved.
Xinyi Yang +10 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li +11 more
wiley +1 more source
随着社会的高速发展,水体富营养化问题日趋严重,磷的过量排放是导致水体富营养化的关键诱因。采用给水厂污泥为主要原材料制备污泥酸提液(Sae),以活性炭纤维(ACF)为载体、Sae为改性溶液,制备吸附材料Sae-ACF。结果表明,Sae-ACF在水中具有良好的稳定性;当温度为25 ℃、磷初始质量浓度为10 mg/L、Sae-ACF投加量为1 g/L、pH=7、反应时间为60 min时,Sae-ACF对磷的去除率为95.11%,比ACF提高了52.92%;经过4次循环再生后,Sae ...
范旭腾 +3 more
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