Results 31 to 40 of about 14,508 (165)

Use of species’ responses to cryptic anthropogenic disturbances for monitoring biodiversity outcomes in tropical forests

open access: yesConservation Biology, EarlyView.
Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero   +5 more
wiley   +1 more source

Strategies of high efficiency water usage promoted by microbial remediation in coal mining areas of western China [PDF]

open access: yes
The fragile ecological environment in the western coal mining areas of China, compounded by intensive mining activities, has led to water and soil erosion, soil degradation, and damaged root systems.
Chao WU   +4 more
core   +1 more source

Integrating Urban Expansion and Flood Risk: A Spatial Assessment of Impervious Surface Growth and Floodplain Exposure in Mecklenburg County (2011–2021)

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
wiley   +1 more source

COMPARISONS OF LEAF CHLORIDE CONTENT AND LEAF TRAITS BETWEEN TRUE MANGROVE PLANTS AND SEMI-MANGROVE PLANTS [PDF]

open access: yes, 2007
依据红树植物在潮间带的分布,将其分为真红树植物和半红树植物两大类。但对一些过渡地带种类的归属问题一直存在争议。该研究选取国内大部分红树植物,比较其成熟叶片中的Cl含量、肉质化程度、比叶面积(SLA)、单位重量叶氮含量(Nmass)和单位面积叶氮含量(Narea),并对争议树种重新进行界定。结果表明:1)真红树植物叶片中Cl含量和肉质化程度远高于半红树植物;2)真红树植物具有低SLA和高Narea的特点,除水芫花(Pemphis acidula)外半红树植物具有高SLA和低Narea的特点。3 ...
牟美蓉, 王文卿, 蒋巧兰
core  

The Role of Public Finance to Address the Global Finance Gap for Drinking Water Services

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Meeting SDG target 6.1 for drinking water requires addressing the finance gap between the funds available from tariffs, taxes and transfers, and the life‐cycle costs of sustaining these services. While there are li‐mitations to applying repayable finance to address this gap, governments can be well suited to support both drinking water ...
Kristina Nilsson
wiley   +1 more source

耕作方式对农田土壤水分变化特征及水分利用效率的影响

open access: yesShuitu Baochi Xuebao, 2018
探讨耕作方式对土壤含水量及水分利用效率的影响,对于高效利用自然降水,提高自然降水利用效率,增加作物产量具有重要的理论与实践意义。因此,采用铝盒称重法测定不同年份、季节、土壤剖面及冻融前后土壤含水量,研究不同耕作方式对土壤含水量及作物水分利用效率的影响。结果表明:在特定时期内土壤含水量随土层深度的增加而减少,特别是土层40 cm以下尤为明显,而且随季节呈波动性变化且受降雨影响较大;季节冻融作用明显降低土壤含水量,但深松较其他处理土壤含水量增幅为0.93%~2.23%;土壤贮水量随季节呈先增后降的趋势变化 ...
郑洪兵   +6 more
doaj  

Critical tidal level for planting Kandelia candel seedlings in Xiamen. [PDF]

open access: yes, 2006
2003年5月在厦门大屿岛白鹭自然保护区西面滩涂上试种秋茄幼苗,研究秋茄的宜林临界线.结果表明,滩涂高程为黄零0.99m处,每个潮水周期的平均淹水时间高达8h,幼苗成活率低于50%,生长缓慢,不适合用秋茄造林;在滩涂高程为黄零1.62m处,秋茄幼苗成活率达90%,生物量积累最大,光合同化作用较高,生长良好,为厦门沿海秋茄的最适生长区;而在高程为黄零1.31m处,秋茄幼苗仍能正常生长.故厦门地区秋茄造林的宜林临界线应不低于黄零1.31m(即厦零4.55m),平均每个潮水周期淹水不高于5.6h ...
杨志伟, 林鹏, 王文卿, 陈鹭真
core  

Effects of organized guarding on mortality from human–elephant conflict in northeast India

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Human–elephant conflict (HEC) frequently results in human and elephant mortality, posing major social justice and conservation concerns across Asia and Africa. Although a variety of interventions have been introduced to mitigate HEC, rigorous evaluations of how they affect mortality are practically nonexistent.
Nitin Sekar   +6 more
wiley   +1 more source

畦灌液施方式对夏玉米灌溉质量和水分利用率的影响

open access: yesShuitu Baochi Xuebao, 2018
通过田间夏玉米畦灌试验,分析畦灌液施方式对作物生长和土壤水氮的影响,评价不同处理下的灌溉施肥质量和水分利用效率,探究适宜的畦灌液施方式。在畦田试验中选择不同畦宽、施肥时机和改水成数,采用正交设计选取最优的液施组合。结果表明,不同畦灌处理对土壤水氮存储效率影响不显著,但对水氮均匀度产生显著影响,土壤水分存储效率(59%~63%)略低于氮素存储效率(61%~64%),而均匀度(95%~99%)略高于氮素均匀度(85%~94%)。畦宽、施肥时机和改水成数显著影响夏玉米产量和水分利用效率。综合各项指标考虑 ...
高剑民   +5 more
doaj  

碳稳定同位素技术在植物水分胁迫研究中的应用 [PDF]

open access: yes, 2004
植物体的碳稳定同位素组成主要由植物本身的生物学特性决定, 但环境胁迫对其影响也十分明显。综述了碳稳定同位素 技术在研究植物水分利用效率、生物量高低及判断历史气候依据等研究领域的进展, 阐明了植物体的D13C 值对干旱、盐分及其 它环境因素的变化所引起的水分胁迫的响应 ...
严重玲   +4 more
core  

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