Results 61 to 70 of about 2,638 (179)
New Phytologist, Volume 247, Issue 3, Page 1460-1473, August 2025.Summary Podocarpus pollen morphology is shaped by both phylogenetic history and the environment. We analyzed the relationship between pollen traits quantified using deep learning and environmental factors within a comparative phylogenetic framework.
Marc‐Élie Adaimé +4 more
wiley +1 more source
Applying Bergmann's Rule to Species Conservation Planning 贝格曼法则在物种保护规划中的应用
Integrative Conservation, Volume 4, Issue 2, Page 120-125, June 2025.Although Bergman's rule has extensively been studied, its implications in species conservation have not been clear, especially in the context of climate change (global warming). Here, we discuss the potential applications of the “rule” based on IUCN's (2022) Red List and suggest species' body size to be an important ecological indicator in future long ...
Qinfeng Guo +4 more
wiley +1 more source
Dianci bileiqi, 1989 根据在人工气候室里的试验结果,阐述了海拔高度对直流淋雨放电电压的影响;分析了在高海拔下绝缘子的直流淋雨放电电压与海拔高度、淋雨率、绝缘子结构和电压极性的关系.
孙才新 +4 more
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Integrative Conservation, Volume 4, Issue 2, Page 116-119, June 2025.This study provides definitive evidence of wolf presence based on camera trap surveys conducted in Shangri‐La National Park, northwestern Yunnan, between 2022 and 2024. This remarkable rediscovery highlights the critical role that well‐managed national parks can play in facilitating the recovery of endangered species.
Yun Deng +10 more
wiley +1 more source
野生动物学报, 1985 一、中国的候鸟中国地处亚洲东部,地域辽阔,地形复杂,有宽广的平原,也有高山、丘陵和盆地。各种地形交错分布。西南部有号称“世界屋脊”的青藏高原,平均海拔高度在4000—5000米。从青藏高原往北及东部,则高原盆地相间,高差极大,最低点吐鲁番盆地的爱丁湖海拔为-154米。再往东,地形开阔,仅局部群峰突起,丘陵平原交错,海拔多在500—1000米左右,大部沿海地带海拔则在50米以下。海岸线长8000多公里,滩涂毗连,岛屿众多。复杂的地形对气候 ...
杨若莉
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Wildlife Letters, Volume 3, Issue 2, Page 73-83, June 2025.Blue sheep in Dhorpatan Hunting Reserve prefer alpine grasslands at 3800–4200 m on south‐facing slopes near water resources, favoring areas with low tree cover and dense ground cover, particularly rhododendrons, junipers, and Cyperaceae grasses. Their habitat significantly overlaps with livestock.
Amit Adhikari +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2011 对冀北山地阳坡不同海拔蒙古栎天然林分枯落物层及土壤层进行了初步研究,结果表明:(1)样地二(海拔1 180 m)的枯落物总蓄积量最大为33.18 t/hm2,其次为样地三(海拔1 260 m),最小为样地一(海拔1 100 m),为14.20 t/hm2,即随海拔升高枯落物总蓄积量先增大后减小。最大持水率的变动范围为140.83%～229.81%,随海拔升高而降低。样地二的有效拦蓄力最强,为39.22 t/hm2,样地三拦蓄能力最弱,为20.58 t/hm2,即中海拔拦蓄能力最强,高海拔最弱。(2 ...
田超 +5 more
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Gaoya dianqi, 1984 高压电器的外绝缘强度是随着海拔的增高而降低的。从历次试验来看,大量生产的GBC—35开关柜的绝缘裕度已经不大,有否可能用于高海拔地区尚有待于实践的检验。 81年,我们厂接受了为一高海拔变电所提供GBC—35开关柜的任务 ...
杨世权
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Dianci bileiqi, 2015 海拔条件对绝缘子的沿面闪络电压会产生影响,使得不同海拔地区电力设备的外绝缘配置产生差异,需要加强绝缘子闪络电压随海拔高度变化规律的试验研究。对不同海拔高度地区（武汉、昆明两地）10 kV线路常用绝缘子的冲击和工频沿面闪络电压进行了试验研究,对多次试验结果按Weibull概率分布的方法进行了处理,得到不同闪络概率的闪络电压,进而完善了绝缘子闪络电压随海拔高度变化规律的经验公式,为不同海拔条件地区的外绝缘设计提供参考。
魏明 +5 more
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Shuitu Baochi Xuebao, 2020 在不同海拔高度利用大田对比方法，开展了小麦生育期严重干旱年型夏闲期不同轮作压青茬口对麦田土壤水分及水分利用效率的研究。结果表明：不同轮作压青茬口的小麦播种期和成熟期不同土层贮水量海拔点998 m均高于海拔点459 m，且0—100，100—200，200—300 cm土层贮水量均存在极显著差异，2个海拔点各轮作压青茬口的播种期0—100，100—200 cm土层贮水量均基本呈现同一茬口随压青时间推迟其贮水量降低；不同轮作压青茬口播种期与成熟期间0—100，100—200，200—300 ...
马爱平 +5 more
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