Results 21 to 30 of about 4,539 (175)
Zhejiang Daxue xuebao. Lixue ban, 2014 利用宁波大榭凉帽山岛的高塔梯度风气象观测资料，分别研究了宁波沿海地区四季的白天和夜间低空（300 m以下）温、湿、风等气象要素的廓线特征.同时以登陆宁波的典型台风“海葵”为例，进一步分析了台风影响过程中温、湿、风等气象要素随高度的变化特征，以及湍流强度和阵风因子等近地层的湍流特性.
DUKun(杜坤) +4 more
doaj +1 more source
Dry and Wet Deposition Characteristics and Anthropogenic Sources of Atmospheric Mercury in Xiamen [PDF]
, 2016 大气汞是危害人体健康的毒性污染物。大气中不同形态的汞具有不同的理化特性，颗粒态总汞TPM(Totalparticulatemercury)沉降速率高，能在排放源附近沉降，对区域内的生态环境造成较大的危害；大气气态总汞TGM(Totalgaseousmercury)因其具有较低的水溶性和沉降速率，可在大气中停留0.5-2年，能够进行长距离传输，被认为是全球性污染物。目前欧美地区已经广泛地建立起汞监测网络，虽然国内的大气汞监测也陆续开展起来，但是长时间持续监测尚不多见。本研究基于实验室前期的研究成果 ...
陈强
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Transpiration Characteristics of Common Trees and Their Responses to Meteorological Factors in Secondary Forests on Karst Slopes [PDF]
[Objective] To explore the transpiration characteristics of common trees and their responses to meteorological factors in secondary forests on karst slopes.
DAI Quanhou +3 more
core +1 more source
Global drivers of the conservation–invasion paradox
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract The conservation–invasion paradox (CIP) refers to a long‐term phenomenon wherein species threatened in their native range can sustain viable populations when introduced to other regions. Understanding the drivers of CIP is helpful for conserving threatened species and managing invasive species, which is unfortunately still lacking. We compiled
Yanhua Hong, Zhiyong Yuan, Xuan Liu
wiley +1 more source
太湖、巢湖、滇池水华与相关气象、水质因子及其响应的比较(1981-2015年)
, 2018 比较了太湖、巢湖、滇池（'三湖'）1981-2010年间的气象要素，1987-2015年间的水质要素，2000-2013年间的年内水华起始日期与持续时间，以及与水华相关的已有研究情况.其中，气象要素包括气温、日温差、风速、风向、气压、降水、相对湿度等；水质要素包括水温、总氮浓度、总磷浓度、水体综合营养指数等.对比结果表明，云贵高原湖泊滇池因其冬、春季节气温较高且日温差较大等气象特征，以及总磷浓度较高等水质特征，相比于东部平原湖泊太湖、巢湖而言更易发生水华，且在'三湖'中水华年内起始日期最早，持续时间最长.
王菁晗 +17 more
semanticscholar +1 more source
, 2010 将在40℃条件下培养5d和10d的铜绿微囊藻(Microcystis aeruginosa FACHB905)转接至新鲜培养基,以25℃培养条件下转接的相同细胞密度的培养物为对照,然后均置于相同的培养条件下恢复生长.研究了各培养物的生长、叶绿素a浓度、光系统Ⅱ的光化学效率(Fv/Fm)、净光合速率和呼吸速率的变化.结果表明,在40℃高温下分别培养5d和10d,铜绿微囊藻的比生长速率、Fv/Fm等指标均受到显著抑制 ...
李敦海, 秦红杰
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Assessing the Corn Belt as an anthropogenic barrier to migrating landbirds in the United States
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Migrating landbirds adjust their flight and stopover behaviors to efficiently cross inhospitable geographies, such as the Gulf of Mexico and the Sahara Desert. In addition to these natural barriers, birds may increasingly encounter anthropogenic barriers created by large‐scale changes in land use. One such barrier could be the Corn Belt in the
Fengyi Guo +7 more
wiley +1 more source
On the normative roles of biodiversity and naturalness in conservation
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Nature is an opaque concept. Consequently, the term biodiversity conservation has replaced nature conservation in most conservation contexts. We review the conceptual indeterminacies that plague the terms nature and natural but then show that comparable difficulties plague biodiversity.
David Saltz, Shlomo Cohen
wiley +1 more source
, 2009 通过2004年2～12月对古尔班通古特沙漠南缘2年生人工梭梭和沙拐枣混交林内3条典型坡面土壤水分进行了系统监测与研究。结果表明:人工林土壤水分状况受季节性降水、人工林种植密度、地形因子的影响而出现明显的时空分异。在空间上将土壤水分变化划分为三层,0～30cm为活跃层,30～60 cm为次活跃层,60～120 cm为相对稳定层。通过主成分分析,得出地形因子、种植密度对0～30 cm土层土壤水分的影响次序为坡度>坡向>种植密度>高程,30～60 cm土层为坡向>种植密度>坡度>高程,60～120 ...
付恒飞, 宋春武, 蒋进, 陈钧杰
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Slope Aspect Differentiation of Pisha Sandstone Slide Erosion and Its Response to Meteorological Factors [PDF]
[Objective] As a typical mode of gravity erosion in the Pisha sandstone area, debris sliding has become a significant source of coarse sand material within gullies, seriously threatening the ecological security of the basin.
LI Long +4 more
core +1 more source