Results 11 to 20 of about 13,867 (169)

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

open access: yesRare Metals, EarlyView.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu   +9 more
wiley   +1 more source

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

Mycorrhiza‐induced alterations in the spatial structure of stands in a subtropical forest

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Spatial aggregation patterns represent snapshots of ecological processes that occurred over an extensive period. Such processes can shape both the conspecific and the heterospecific spatial structure of plants across woody habitats.
Jingjing Xi   +6 more
wiley   +1 more source

Representativeness of the Natura 2000 network for preserving plant biodiversity in the European Union

open access: yesConservation Biology, EarlyView.
Abstract The Natura 2000 (N2K) network of protected areas is one of the main tools for area‐based conservation in the European Union (EU), yet its role in preserving plant biodiversity requires better understanding. We examined data kept in the European Vegetation Archive from over 1.2 million vegetation plots and obtained over 14.2 million plant ...
Michele Di Musciano   +41 more
wiley   +1 more source

Informing spatial conservation prioritization with species’ traits

open access: yesConservation Biology, EarlyView.
Abstract New Guinea, the most botanically diverse island on the planet, is the location for one of the boldest conservation initiatives. The Manokwari Declaration aims to achieve 70% conservation designation for the Bird's Head Peninsula. This is 40% higher than the 2022 Global Biodiversity Framework target.
Liam A. Trethowan   +27 more
wiley   +1 more source

基于地理探测器的西南岩溶槽谷区近20年

open access: yesShuitu Baochi Xuebao, 2021
植被覆盖度变化及其与驱动因子关系的研究是开展大规模植被恢复效益评估的基础,而目前对西南槽谷地区植被绿化的时空变化模式及其驱动因素的认识并不明晰,不利于进一步生态建设。基于2000—2018年西南槽谷区NDVI、气温、降雨、DEM、土地覆被和人口密度数据,应用线性趋势回归分析和Hurst指数分析等方法以及地理探测器模型,探究了西南槽谷区植被覆盖的时空变化特征和驱动因素,预测未来变化趋势。结果表明:(1)近19年来NDVI范围介于0.79~0.84,总体呈波动上升趋势,岩溶区植被NDVI (0.003 17/
NDVI变化特征及影响因素李晓丽   +2 more
doaj  

Greenhouse gas emissions from croplands of China [PDF]

open access: yes, 2003
China possesses cropland of 1.33 million km 2. Cultivation of the cropland not only altered the biogeochemical cycles of carbon (C) and nitrogen (N) in the agroecosystems but also affected global climate.
Bohan, Liao   +13 more
core   +1 more source

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

open access: yesConservation Biology, EarlyView.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás   +4 more
wiley   +1 more source

模拟植被类型及空间配置对坡面流水动力学特性的影响

open access: yesShuitu Baochi Xuebao, 2017
通过室内水槽模拟冲刷试验,研究缓坡坡降1.4%、流量0.6~1.8 L/s、非淹没条件下,植被类型(柔性植被、刚性植被)和植被配置格局(棋盘状格局、长条状格局、带状格局)对坡面流水深、流速、流态、达西阻力系数等水动力学特性的影响,探究其规律。结果表明:(1)与裸坡相比,植被具有雍水缓流作用,水深雍高1.4~2.8倍,流速延缓31%~65%,植被格局较植被类型作用更为明显,其中柔性植被、带状格局雍水效果最好。(2)坡面流态指数m显示刚性植被、棋盘状格局条件下水流紊动性最强,而坡面综合指数k显示刚性植被 ...
孟铖铖, 杨坪坪
doaj  

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