作者: 鎮(zhèn)痛劑 時(shí)間: 2025-3-21 21:13
The alpine life zone,ference to the North Italian peaks of the Alps as seen by the Romans; L?ve 1970). However, today linguists consider this as purely coincidental and the term is most likely of pre-Roman origin, with “alp” or “alb” standing for “mountain” in general. Even the Basques use “alpo” for mountain flanks in 作者: 真實(shí)的你 時(shí)間: 2025-3-22 00:50 作者: 哭得清醒了 時(shí)間: 2025-3-22 05:24
The climate plants experience,y meteorological station with all its weather masts confirms: +4°C air temperature, 5 ms. wind speed, 40% relative humidity. While our mountaineer experiences the harsh life in the mountains, the world looks different for those who stay close to ground. Micrometeorological research in alpine vegetat作者: 間接 時(shí)間: 2025-3-22 12:48 作者: 疏忽 時(shí)間: 2025-3-22 13:14 作者: 注射器 時(shí)間: 2025-3-22 20:56
Alpine treelines, beyond which massive single stems and tall crowns either can not be developed, become un-affordable or are disadvantageous Fig. 7.1. Why do trees disappear above a certain elevation, what causes the alpine zone to be treeless, i.e. “alpine”? The answer to this question would also indicate which fun作者: ostensible 時(shí)間: 2025-3-22 21:59
Climatic stress,role in selection and evolution of alpine taxa. Whether those species and ecotypes which make their fortune in these “stressful” environments are “stressed” depends on whether stress is defined as a limitation of biomass production or of persistent presence and propagation (see Chap. 1). The two are作者: 一美元 時(shí)間: 2025-3-23 05:00 作者: MUTED 時(shí)間: 2025-3-23 06:27
Mineral nutrition,t spatial scales of one to a few meters and can be quite extreme, as illustrated by Figure 10.1. In regions with traditional alpine cattle farming such as the Alps, a multitude of unintended “fertilizer experiments” demonstrate how local nutrient addition (redistribution) can influence alpine vegeta作者: HALL 時(shí)間: 2025-3-23 10:26
Uptake and loss of carbon,. by a plant depends on the specific activity of its leaves and the total amount (mass or area) of leaves present per total plant mass. Leaf photosynthesis depends on three processes: (1) the diffusion of CO. from the free atmosphere to the site of carboxylation in chloroplasts, (2) the biochemical 作者: cornucopia 時(shí)間: 2025-3-23 15:21 作者: 規(guī)范要多 時(shí)間: 2025-3-23 19:11
Growth dynamics and phenology,roots rather than stems, but the biomass fraction invested in leaves is the same as in comparable morphotypes at low altitude. However, interspecific variation in these traits is far greater than the mean elevational difference for communities. Non-structural carbon compounds (carbohydrates, lipids)作者: Endometrium 時(shí)間: 2025-3-24 00:39
Cell division and tissue formation,ctive phase of life and sufficient carbon assimilates are present at meristems, plants would grow new cells. But this is not necessarily so. The formation of new cells involves a suite of synthetic steps, all potentially as sensitive, or even more so, to low temperature than the production of the ra作者: Overdose 時(shí)間: 2025-3-24 05:46 作者: 大雨 時(shí)間: 2025-3-24 09:43 作者: audiologist 時(shí)間: 2025-3-24 11:32 作者: Laconic 時(shí)間: 2025-3-24 15:43
Mineral nutrition,t spatial scales of one to a few meters and can be quite extreme, as illustrated by Figure 10.1. In regions with traditional alpine cattle farming such as the Alps, a multitude of unintended “fertilizer experiments” demonstrate how local nutrient addition (redistribution) can influence alpine vegetation Figure 10.2.作者: 抓住他投降 時(shí)間: 2025-3-24 22:42
Plant reproduction,ence and expand their range into new open land? How do they ensure the maintenance of intra-population diversity required for sustained ground cover in a harsh and ever changing environment? There are three ways:作者: 符合你規(guī)定 時(shí)間: 2025-3-25 03:11
https://doi.org/10.1007/978-94-007-5684-7explore. Palaeorecords suggest that life on land started out in sheltered, warm and moist environments, and gradually expanded into more demanding habitats where water is rare, thermal energy is either low or overabundant or where mechanical disturbance is high. More than 100 million years ago, when作者: 勛章 時(shí)間: 2025-3-25 04:19
Mojtaba Fathi,Moslehedin Rezaeiference to the North Italian peaks of the Alps as seen by the Romans; L?ve 1970). However, today linguists consider this as purely coincidental and the term is most likely of pre-Roman origin, with “alp” or “alb” standing for “mountain” in general. Even the Basques use “alpo” for mountain flanks in 作者: APO 時(shí)間: 2025-3-25 08:52 作者: CAMP 時(shí)間: 2025-3-25 11:58
Hala M. Ibrahim,Assia A. El Falakyy meteorological station with all its weather masts confirms: +4°C air temperature, 5 ms. wind speed, 40% relative humidity. While our mountaineer experiences the harsh life in the mountains, the world looks different for those who stay close to ground. Micrometeorological research in alpine vegetat作者: rectum 時(shí)間: 2025-3-25 18:38
Developments in Soviet Politicsration of anywhere between 330 and a few days (in the tropics) per year. In some cases, at higher latitudes, alpine plants may even have to (and do) survive one or two years of permanent snowpack, as can happen due to yearly variable snow distribution by wind (Moser et al. 1977). Snow cover strongly作者: Hdl348 時(shí)間: 2025-3-25 22:00
Stephen White,Alex Pravda,Zvi Gitelmandistances one can find a large variety of alpine soil types, ranging from alpine sand drifts to peat bogs, from shallow A/C (e.g. rendzina) soils to the deeply weathered profiles of some alpine grassland soils. Vegetation mosaics closely follow these below-ground patterns as was documented in a firs作者: Lobotomy 時(shí)間: 2025-3-26 02:52 作者: 發(fā)生 時(shí)間: 2025-3-26 04:26
https://doi.org/10.1007/978-1-349-20819-7role in selection and evolution of alpine taxa. Whether those species and ecotypes which make their fortune in these “stressful” environments are “stressed” depends on whether stress is defined as a limitation of biomass production or of persistent presence and propagation (see Chap. 1). The two are作者: 急急忙忙 時(shí)間: 2025-3-26 12:16
The Politics of Foreign and Security Policyhortage does occur, and contributes to the overall impact of the physical environment on mountain plants Fig. 9.1. In this chapter I will first discuss the overall hydrological situation, the land area based water balance and soil moisture at alpine altitudes — aspects which have strong links with C作者: 乏味 時(shí)間: 2025-3-26 16:30 作者: Conquest 時(shí)間: 2025-3-26 17:27
Nations, Republics and Commonwealth. by a plant depends on the specific activity of its leaves and the total amount (mass or area) of leaves present per total plant mass. Leaf photosynthesis depends on three processes: (1) the diffusion of CO. from the free atmosphere to the site of carboxylation in chloroplasts, (2) the biochemical 作者: fertilizer 時(shí)間: 2025-3-27 00:02
Reconceptualising the Soviet Systemnd development. In the last century, when researchers watched submerged aquatic leaves for air bubbles in order to check whether the plant was photosynthesizing, a handful of ice added to such a water bath had illuminated the fundamental .. of carbon. By using these methods, Kraus (1869, p. 523) stu作者: 初學(xué)者 時(shí)間: 2025-3-27 03:53 作者: 鬧劇 時(shí)間: 2025-3-27 07:09 作者: 常到 時(shí)間: 2025-3-27 09:58
State Institutions in Transition placed in the context of interactions, the growth of many other leaves and plants. A slowing down of one individual may be balanced by enhanced growth of another, hence only a consideration of all members of a plant community will reveal what may be the typical biomass production for a certain envi作者: 變化無(wú)常 時(shí)間: 2025-3-27 16:50 作者: DAUNT 時(shí)間: 2025-3-27 20:41 作者: 乞丐 時(shí)間: 2025-3-28 00:40
Executive Power and Political Leadershipt spatial scales of one to a few meters and can be quite extreme, as illustrated by Figure 10.1. In regions with traditional alpine cattle farming such as the Alps, a multitude of unintended “fertilizer experiments” demonstrate how local nutrient addition (redistribution) can influence alpine vegetation Figure 10.2.作者: beta-carotene 時(shí)間: 2025-3-28 02:37 作者: Foment 時(shí)間: 2025-3-28 09:37
Christian K?rnerIncludes supplementary material: 作者: Ringworm 時(shí)間: 2025-3-28 11:19 作者: 是限制 時(shí)間: 2025-3-28 17:34
https://doi.org/10.1007/978-3-642-18970-8Alpen; Ecology; Hochgebirge; Klima; Planzen?kologie; alpine ecology; climate; ecosystem; high mountains; plan作者: Goblet-Cells 時(shí)間: 2025-3-28 20:43 作者: construct 時(shí)間: 2025-3-28 23:03 作者: 卡死偷電 時(shí)間: 2025-3-29 06:41
Textbook 20032nd edition human impacts on alpine vegetation. Geographically the book covers all parts of the world including the tropics.This second edition of Alpine Plant Life gives new references, new diagrams, and extensively revised chapters..作者: Harrowing 時(shí)間: 2025-3-29 09:03 作者: Tractable 時(shí)間: 2025-3-29 12:24 作者: 隱語(yǔ) 時(shí)間: 2025-3-29 15:44 作者: 未成熟 時(shí)間: 2025-3-29 21:30
Hala M. Ibrahim,Assia A. El Falakyc soils exposed to full sunlight have been shown to heat up to temperatures of around 80°C (Alps of Tirol, Turner 1958b; Australian Snowy Mountains, K?rner and Cochrane 1983). Such temperatures are sterilizing the topsoil — life in hot deserts? How cold is the cold climate of the alpine plants?作者: Irrigate 時(shí)間: 2025-3-30 01:50
The alpine life zone,“alpine” is often applied to whole mountain regions including valleys and townships or is used as a general substitute for mountains. These uses of the word “alpine” do not match the meaning of “alpine zone” in the current context.作者: Irrigate 時(shí)間: 2025-3-30 05:30
The climate plants experience,c soils exposed to full sunlight have been shown to heat up to temperatures of around 80°C (Alps of Tirol, Turner 1958b; Australian Snowy Mountains, K?rner and Cochrane 1983). Such temperatures are sterilizing the topsoil — life in hot deserts? How cold is the cold climate of the alpine plants?作者: 衣服 時(shí)間: 2025-3-30 10:23 作者: 逃避責(zé)任 時(shí)間: 2025-3-30 14:46
to dramatic climatic gradients over a very short distance. This comprehensive text treats a wide range of topics: alpine climate and soils, plant distribution and the treeline phenomenon, physiological ecology of water-, nutritional- and carbon relations of alpine plants, plant stress and plant deve作者: 榨取 時(shí)間: 2025-3-30 18:46 作者: Conjuction 時(shí)間: 2025-3-30 23:28 作者: 你正派 時(shí)間: 2025-3-31 04:23
Reconceptualising the Soviet Systemnthesizing, a handful of ice added to such a water bath had illuminated the fundamental .. of carbon. By using these methods, Kraus (1869, p. 523) studied the effect of light and temperature on starch and sugar formation in plants in Würzburg and hit the point remarkably well:作者: hypertension 時(shí)間: 2025-3-31 08:36 作者: 浮雕 時(shí)間: 2025-3-31 11:31
State Institutions in Transitionh of another, hence only a consideration of all members of a plant community will reveal what may be the typical biomass production for a certain environment. Plants may respond in quite different ways if growing together, rather than alone.作者: epinephrine 時(shí)間: 2025-3-31 14:06 作者: 在前面 時(shí)間: 2025-3-31 21:23
