Results 21 to 30 of about 27,404 (162)

Gradient distributions of nitrogen and organic carbon in the soils from inland to tidal flat in the Yellow River Delta [PDF]

open access: yes, 2014
黄河三角洲是我国典型的通过黄河冲积泥沙填海造陆形成的近代沉积区。区域受到黄河冲积、沉积等自然过程和农业耕种熟化等人类活动的双重影响。本研究通过在黄河三角洲地区内陆到河口海湾不同距离采集典型土壤类型剖面发生层样品,探讨土壤有机碳、总氮等生源要素的空间分布规律,为阐明我国典型海岸带地区陆源碳、氮的输送及循环特征提供基础依据。研究结果表明,黄河三角洲内陆与河口地区呈现出完全不同的土壤碳、氮分布规律。表层土壤碳、氮含量在黄河沿岸及三角洲南部均表现出由陆向海逐级递减的空间分布特征 ...
李远   +4 more
core   +1 more source

Fabricating Highly Efficient Ternary Mn–CeOx/Co3O4 Catalysts for Low Temperature Thermal Desorption of Persistent Perfluorooctanoic Acid in Soil

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu   +8 more
wiley   +1 more source

土壤呼吸作用时空动态变化及其影响机制研究与展望. [PDF]

open access: yes, 2009
测定不同陆地生态系统土壤呼吸速率及其时空波动,阐明其影响因子,对于全球碳素平衡预算和全球变化潜在效应估计是最为基本的数据。然而,有关土壤呼吸作用变异性及其影响因素的知识仍存在局限性,一些关键的过程和机制还有待阐明。该文综述了近年来土壤呼吸作用时空动态规律、影响机制和模拟方面的研究进展,指出环境因子和生物因子共同驱动着土壤呼吸作用的时间动态变化;土壤呼吸作用在不同时间尺度上还具有明显的空间异质性,这主要是植被覆盖、根系分布、主要的环境因素和土壤特性空间分布的异质性造成的 ...
周广胜., 韩广轩
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Herbivore species and patch heterogeneity modulate grazing‐induced shifts in soil nematode trophic structure and energy flux

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 163-175, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Grazing by large herbivores is a critical factor shaping grassland biodiversity and ecosystem functioning worldwide, yet its consequences for soil communities remain poorly understood.
Quanhui Ma   +12 more
wiley   +1 more source

Lithology modulates soil priming effect via resource limitations and bacterial community structure

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 176-190, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou   +4 more
wiley   +1 more source

以坡地土壤厚度及垂直結構探討淺層崩塌潛勢區位 [PDF]

open access: yes, 2014
The factors related to shallow slope failures include soil depth, vertical soil structure, and bedrock topography. In this study, we surveyed spatial variations of soil depth and vertical soil structure by conducting simplified penetration tests, and ...
Meng-Chun Chan   +3 more
core  

Contribution of Different Processes in Wetland Soil N_2O Production in Different Restoration Phases of the Yellow River Estuary, China [PDF]

open access: yes, 2014
采用时空替代法,选择黄河口生态恢复前后未恢复区(R_0)、2007年恢复区(R_(2007))和2002年恢复区(R_(2002))的芦苇湿地为研究对象,分析了生态恢复工程对湿地土壤N_2O产生不同过程与贡献的影响. 结果表明,尽管不同恢复阶段湿地土壤N_2O总产生量差异明显,但总体均表现为N_2O释放. 恢复区湿地土壤的N_2O产生量大于未恢复区.
孙万龙   +4 more
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Citizens Turning Into Scientists: A Calling to Boost the Knowledge of the Public to Address the Environmental Crisis in the Brazilian Semiarid 从公众到科学家:助力提升公众知识以应对巴西半干旱地区环境危机

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 546-554, December 2025.
Desertification is increasing in the Brazilian Semiarid, leading to loss of species and ecosystem services, while precise data on biodiversity distribution and trends are lacking. Public engagement in scientific projects can improve ecosystem protection.
Lucas Rodriguez Forti   +3 more
wiley   +1 more source

Mitigation of Legacy Effects in Invaded Soil via Alien Plant‐Derived Biochar 题目:外来植物生物炭对其入侵后土壤遗留效应的修复作用

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 686-694, December 2025.
The soil fungicide reduces the occurrence of pathogenic fungi in invaded soil and at the same time promotes the recruitment of mycorrhizal fungi and saprophytic fungi by the plants. The addition of biochar to the invaded soil has a negative legacy effect on subsequent invasive plants, while it exerts a positive enhancement effect on native plants ...
Weitao Li   +5 more
wiley   +1 more source

湘中山地土壤线虫(Nematoda)生态地理群的研究 [PDF]

open access: yes, 1992
作者对湖南南岳衡山和长沙岳麓山土壤线虫进行了两年多的定位研究,共获得18511条土壤线虫标本.经分类鉴定,计有24个种 ...
伍惠生, 张友梅, 王振中
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