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Contrasting Patterns of Phyllosphere Fungal Diversity Between Angiosperms and Gymnosperms Along a Subalpine‐Elevation Gradient 题目:亚高山海拔梯度上被子植物与裸子植物叶际真菌多样性的相反格局

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 476-490, September 2025.
The leaf functional traits of angiosperms and gymnosperms in mountain ecosystems significantly influence phyllosphere fungal diversity. These traits are critical for understanding fungal stress resistance and elevational adaptation, which aids in predicting plant responses to climate change.
Xiaocheng Yu   +7 more
wiley   +1 more source

茵陈蒿群落垂直结构对坡面产流产沙过程的影响

open access: yesShuitu Baochi Xuebao, 2017
为探究茵陈蒿群落不同垂直结构对产流、产沙过程的影响,利用人工模拟降雨试验的方法,研究了不同垂直结构的茵陈蒿群落坡面侵蚀过程。结果表明:在植被盖度相同条件下,茵陈蒿多层群落结构(茵陈蒿+狗尾草+生物结皮)和双层群落结构(茵陈蒿+生物结皮)的减流、减沙效果显著优于单层群落结构,二者的减流效益分别为40.5%和22.6%,减沙效益分别为86.6%和73.5%。不同垂直结构的茵陈蒿群落累积产沙量均可表示为累积产流量的幂函数(R2>0.98),表现为累积产沙量随累积产流量的增加而增加,且随群落结构层数的增加 ...
李盼盼, 王, 刘国彬, 李文达
doaj  

Study on Nitrogen Retention in Riparian Vegetation System [PDF]

open access: yes, 2009
随着经济发展和人口增加,世界范围内水体污染日趋严重,已经成为限制经济社会发展和威胁人类健康的重大环境问题。河岸植被土壤系统能显著减少地下水和地表水中的污染物进入水生生态系统。在我国南方丘陵地区,广泛种植的竹林是常见的次生植被群落,因此对河岸竹林土壤系统的深入研究,对于防治我国的环境污染和受纳水体的富营养化问题具有十分重要的理论和现实意义。 本文利用具有创新意义的土壤壤中流采集装置,结合水样氮素的分析与土壤反硝化实验,将河岸植被土壤作为一个系统,了解其内部的主要生物地球化学过程 ...
孟鲁伟
core  

Soil Particle Settlement Sorting and Distribution Characteristics of Carbon, Nitrogen and Salt During Gradual Thawing [PDF]

open access: yes, 2023
[Objective] The classification of sediment particles and the accompanying distribution characteristics of carbon, nitrogen and salt in the process of soil thawing layer by layer under snowmelt runoff scenario were analyzed in order to identify the ...
Hu Yaxian   +5 more
core   +1 more source

Vegetation dominantly shapes the elevational patterns of archaeal and protistan communities and their ecological functions in the Hengduan Mountains, Tibetan Plateau

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2327-2341, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract While elevational patterns of soil bacterial and fungal communities in mountain ecosystems have been well documented, the assembly processes of soil archaeal and protistan communities, and their linkage with ecosystem multifunctionality (EMF), remain poorly understood ...
Bao‐Min Yao   +14 more
wiley   +1 more source

吉兰泰盐湖周边不同沙化程度植被群落与土壤养分特征研究

open access: yesShuitu Baochi Xuebao, 2018
选取吉兰泰盐湖周边4种不同程度的沙化土壤,对其植被群落特征与土壤养分含量进行测定,分析不同沙化程度植被群落特征、土壤养分含量垂直分布特征以及植被群落与土壤养分含量之间的相关性。结果表明:(1)随着沙化程度的加剧,Shannon-Wiener多样性指数、Simpson优势度指数与Margalef丰富度指数均不断下降,植被群落结构趋于简单化;(2)随着沙化程度的加剧,土壤有机质与速效养分含量总体呈降低趋势;(3)土壤有机质、速效磷、速效钾均与Shannon-Wiener多样性指数呈显著正相关 ...
徐涛   +7 more
doaj  

Study on Remote Sensing Information Model of Primary Productivity for Medium and Small Scal Watershed——A Case Study in Jiulong River Watershed [PDF]

open access: yes, 2004
从生态系统的角度,宏观而又翔实地记录相应空间生态状况的生态系统监测体系必须利用高效、实时的监测手段,这是实施流域生态系统管理的必要基础工作。本研究以基于生理生态学、遥感信息模型理论、地统计学分析和地理信息系统技术综合应用为基础,探讨支持中小流域的生态环境管理的遥感监测工作方式。同时,也为挖掘遥感信息在生产建设中的深层次利用潜力,使之直接应用于生态监测的日常业务提出可供借鉴的参考。初级生产力及其变化,是流域生态系统管理的关键指标之一。该指标可以度量生态系统能力,反映整个系统的活力,生产力高低、变化幅度 ...
孙飒梅
core  

Remote sensing analysis of the changes in the ecotone of mangrove forests and Spartina alterniflora saltmarshes [PDF]

open access: yes, 2017
红树林和盐沼是世界上重要的滨海湿地类型。在我国东南部沿海,互花米草盐沼和红树林之间的竞争成为一个重要的问题。为了研究红树林和互花米草盐沼之间的空; 间竞争规律,选取福建漳江口红树林国家级自然保护区为研究区域,收集了1988年至2014年27年间共15期覆盖该区域的Landsat影像和Goog; le Earth影像,采用最大似然分类法提取出红树林与互花米草盐沼的近30; a历史变化信息。历史遥感影像分析表明:1)红树林面积20世纪90年代增长速度最快,2004年以后增长速度变慢;2 ...
李屹, 李炎, 陈一宁
core   +1 more source

Altered nutrient cycling functionality in seagrass meadows under a simulated future marine heatwave event

open access: yesNew Phytologist, Volume 247, Issue 6, Page 2616-2629, September 2025.
Summary Seagrasses are important contributors to environmental nutrient cycling in marine ecosystems and can improve water quality by absorbing excess nitrogen (N). However, these ecosystems are vulnerable to human‐mediated pressures, including marine heatwaves (MHWs), particularly those of longer duration. We performed an experiment simulating a 30‐d,
Alissa V. Bass   +5 more
wiley   +1 more source

子午岭北部不同植被类型土壤水分特征研究

open access: yesShuitu Baochi Xuebao, 2002
研究了子午岭北部黄土区次生植被演替过程中形成的不同植被类型对土壤水分特征的影响。结果表明:土壤含水量与土壤吸力之间关系符合幂函数θ=aSb,且相关系数达极显著。参数a值也随着植被类型的不同,呈现出有规律的变化,辽东栎群落>白桦林群落>山杨林群落>狼牙刺群落>虎榛子群落>铁杆蒿群落。在同一吸力段范围内,土壤含水量由高到低的次序为:辽东栎林群落、山杨林群落、白桦林群落、虎榛子群落、狼牙刺群落、白羊草群落、铁杆蒿群落、撂荒地。在低吸力段,不同群落0~20cm土壤平均含水量的差异明显,乔木林土壤的含水量最高 ...
赵世伟 吴金水 等
doaj  

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