標題: Titlebook: Magnesium Deficiency in Forest Ecosystems; Reinhard F. Hüttl (Chair of Soil Protection and Re Book 1997 Springer Science+Business Media Do [打印本頁] 作者: DIGN 時間: 2025-3-21 18:56
書目名稱Magnesium Deficiency in Forest Ecosystems影響因子(影響力)
書目名稱Magnesium Deficiency in Forest Ecosystems影響因子(影響力)學科排名
書目名稱Magnesium Deficiency in Forest Ecosystems網(wǎng)絡公開度
書目名稱Magnesium Deficiency in Forest Ecosystems網(wǎng)絡公開度學科排名
書目名稱Magnesium Deficiency in Forest Ecosystems被引頻次
書目名稱Magnesium Deficiency in Forest Ecosystems被引頻次學科排名
書目名稱Magnesium Deficiency in Forest Ecosystems年度引用
書目名稱Magnesium Deficiency in Forest Ecosystems年度引用學科排名
書目名稱Magnesium Deficiency in Forest Ecosystems讀者反饋
書目名稱Magnesium Deficiency in Forest Ecosystems讀者反饋學科排名
作者: AVERT 時間: 2025-3-21 22:26 作者: 造反,叛亂 時間: 2025-3-22 03:26
H.-P. Ende,F. H. Everslso generated several challenges not the least of which is humanities ability to analyze, process and take decisions on that data. Algorithmic Decision Making (ADM) represents a solution to these challenge. Whilst ADM has been around for many years, it has come under increased scrutiny in recent yea作者: CHANT 時間: 2025-3-22 05:08 作者: metropolitan 時間: 2025-3-22 09:45
basin of northwestern Mexico. Language plays a fundamental role in our interpretation of the rich archival sources that allow us to comprehend the deeply rooted knowledge base that Indigenous peoples developed from their material and spiritual worlds. It is also an essential part of the living histo作者: 亂砍 時間: 2025-3-22 15:38
K. H. Feger face various crises of climatic, social, political, or economic nature. Those crises forced the population to establish different types of inter-group relationships and identities, resulting in vast range of competitive/cooperative behaviors across the varied social and physical landscapes, includi作者: Ovulation 時間: 2025-3-22 17:47 作者: 四指套 時間: 2025-3-22 23:56 作者: 委托 時間: 2025-3-23 01:26
K. Katzensteiner,G. Glatzelies. It also provides an overview of the thematic contents of individual chapters that combine archaeological data, oral history, linguistic research as well as ritual life and different testimonies of agency of Native communities, connected by major questions and overarching themes of the book. We 作者: 按時間順序 時間: 2025-3-23 08:11
ight by which we see. It is, in fact, the source of the energy with which life continues on earth. It furnishes energy for photosynthesis, and the pro- ducts of photosynthesis constitute our food, building materials, and fuel. A steady state of balance and fine interrelationships exists between life作者: 厭煩 時間: 2025-3-23 11:39 作者: 符合你規(guī)定 時間: 2025-3-23 17:37
M. Kaupenjohanntion and consolidation. As seen in the previous chapters, its main objectives are the description of the Conduct of Everyday Life of victims who have suffered sexual violence and of their attribution of meaning regarding former. This objective corresponds precisely with the functions of the qualitat作者: SEVER 時間: 2025-3-23 20:50 作者: anaerobic 時間: 2025-3-23 22:46
R. F. Hüttlildren and left-behind children. It invites families, schools, communities, social organisations, and governments to rethink and recognise the qualities of left-behind children and floating children. The book will be of interest to research students, sociologists of education, educational studies sc作者: 史前 時間: 2025-3-24 04:53
Visual magnesium deficiency symptoms (coniferous, deciduous trees) and threshold values (foliar, soiment of forest trees. Some fertilizer trials and special investigations did already exist in northern and north-eastern Germany on soils derived from acidic glacial sands. But, in most of the forested area, Mg supply had been sufficient; on the other hand, analysis and methods for the determination 作者: 斜谷 時間: 2025-3-24 10:08 作者: 外貌 時間: 2025-3-24 14:38
Biogeochemistry of magnesium in forest ecosystems needles; deciduous species: intercostal chlorosis in leaves) have been observed in many regions of the world (Hüttl, 1991). In order to understand the differences in Mg supply between sites and temporal developments, a thorough analysis of the bio-geochemical cycling of this element and major proce作者: PHONE 時間: 2025-3-24 15:17 作者: invade 時間: 2025-3-24 19:40 作者: 悄悄移動 時間: 2025-3-24 23:51
Causes of magnesium deficiency in forest ecosystemsMagnesium deficiency in forest ecosystems is usually studied on the basis of individual forest trees or stands of trees. This approach is very limited and can only be attributed to methodological difficulties in studying magnesium nutrition in soil micro-organisms.作者: 共同時代 時間: 2025-3-25 05:36
Soil chemistryd:.Mg is less effective bound than other bi- and trivalent cations, like Ca and Al, as adsorption series show (Sposito, 1989). Even in soils where the total magnesium content in the parent material is higher than the calcium content, the corresponding exchangeable fractions show a reversed order (Ha作者: ADOPT 時間: 2025-3-25 09:04
Tree nutritionnutrition is the nutrient-growth relationship (Mengel and Kirkby, 1987, p. 247). In detail, aspects like nutrient availability, fertilization, nutrient uptake, nutrient assimilation and functioning in plants are considered (Bussler and Marschner, 1975).作者: HARP 時間: 2025-3-25 14:41
Structural aspects of magnesium deficiency levels of both light and electron microscopy, and have partially proved to be of considerable diagnostic value (Thomson and Weier, 1962; Thomson et al., 1964; Bussler, 1964, 1981; Whatley, 1971; Hecht-Buchholz, 1972, 1983; Pissarek, 1973, 1979; Bangerth, 1979). In trees, however, similar studies ha作者: 多山 時間: 2025-3-25 17:16
Fine-root developmentrent functions. They anchor the trees in the mineral soil and take up water and nutrients from the soil. Making the soil accessible, they change its physical and chemical properties. Moreover, they also store water and organic reserves, such as starch and lipids. Lastly, they are a ‘laboratory for b作者: 地名表 時間: 2025-3-25 22:29
https://doi.org/10.1007/978-94-011-5402-4chemistry; ecosystem; ecosystems; forest; nutrition; soil作者: d-limonene 時間: 2025-3-26 01:22
Biogeochemistry of magnesium in forest ecosystems needles; deciduous species: intercostal chlorosis in leaves) have been observed in many regions of the world (Hüttl, 1991). In order to understand the differences in Mg supply between sites and temporal developments, a thorough analysis of the bio-geochemical cycling of this element and major processes is necessary.作者: 必死 時間: 2025-3-26 06:32
Influence of magnesium supply on tree growthhe magnesium content of the sites with well-growing stands on higher variegated sandstone was 40–300 times as high as that of the poorly growing stands. He described the role of magnesium ‘a(chǎn)s an essential activator within the nutrient cycles, especially in the roots’ and drew attention to its stimulating effects on leaf-substance production.作者: Obscure 時間: 2025-3-26 11:36
Causes of magnesium deficiency in forest ecosystemsMagnesium deficiency in forest ecosystems is usually studied on the basis of individual forest trees or stands of trees. This approach is very limited and can only be attributed to methodological difficulties in studying magnesium nutrition in soil micro-organisms.作者: 暫時別動 時間: 2025-3-26 15:37
Tree nutritionnutrition is the nutrient-growth relationship (Mengel and Kirkby, 1987, p. 247). In detail, aspects like nutrient availability, fertilization, nutrient uptake, nutrient assimilation and functioning in plants are considered (Bussler and Marschner, 1975).作者: fertilizer 時間: 2025-3-26 18:08 作者: 聯(lián)想 時間: 2025-3-26 23:11
978-94-010-6272-5Springer Science+Business Media Dordrecht 1997作者: hypotension 時間: 2025-3-27 01:18
Magnesium Deficiency in Forest Ecosystems978-94-011-5402-4Series ISSN 1387-5248 作者: Osteons 時間: 2025-3-27 06:39 作者: 耐寒 時間: 2025-3-27 11:14
Concluding remarksFor as long as the so-called ‘new type forest damage’ has been discussed, nutritional disturbances have been indicated as symptomatic findings. Meanwhile the complex and numerous relationships between nutrient supply and new type forest damage in Europe, North America and elsewhere are well established.作者: predict 時間: 2025-3-27 16:03 作者: 環(huán)形 時間: 2025-3-27 21:19
Tree physiology most important botanist of antiquity and the Middle Ages, studied wild trees, the progagation of trees, timber wood, undershrubs, resin production, frost hardiness of trees, oil production, juices of plants, etc.作者: 逃避責任 時間: 2025-3-27 23:33
Soil chemistryecreases (Hildebrand, 1991). The low selectivity of exchange sites for Mg. retention is one reason why acid soils are poor in adsorbed magnesium. When fertilizing forest stands with magnesium, special attention should be given to optimizing Mg. retention in the soil.作者: Dungeon 時間: 2025-3-28 03:51
Book 1997any The health status of forest trees and stands is determined by numerous site factors such as chemical, physical, and biological soil factors, water supply, climate, weather conditions, management history as well as atmospheric deposition impacts. In this context, the nutrient supply is an importa作者: 值得贊賞 時間: 2025-3-28 10:08 作者: Negotiate 時間: 2025-3-28 11:59 作者: Antarctic 時間: 2025-3-28 17:54
Fine-root developmenthysical and chemical properties. Moreover, they also store water and organic reserves, such as starch and lipids. Lastly, they are a ‘laboratory for biochemical synthesis’ (Kern et al., 1961) by producing phytohormones, such as cytokinine.作者: 議程 時間: 2025-3-28 22:09
Structural aspects of magnesium deficiencyth the occurrence of ‘New-Type Forest Decline’, which proved to be associated in many instances with Mg deficiency at high elevations on acid soils (Type I Spruce Decline; FBW, 1986; Roberts et al., 1989) or, to a lesser extent, K deficiency on calcareous soils (Type IV Spruce Decline; FBW, 1986). I作者: Encephalitis 時間: 2025-3-28 23:17
Book 1997thstand negative environmental influences and still remain stable and productive. From this viewpoint, an optimal nutritional status is a prerequisite for an optimal health status. The term ‘new type forest damage‘ comprises a number of damage symptoms which have been observed in various tree specie作者: 凹處 時間: 2025-3-29 03:26 作者: Ointment 時間: 2025-3-29 10:39 作者: 招惹 時間: 2025-3-29 12:40 作者: 內(nèi)疚 時間: 2025-3-29 18:52
G. Landmann,I. R. Hunter,W. Hendershotat such aspects as fresh water resources, amount of trees, and speaking Nahuatl, which declined as a result of the industrialization, have value for the younger community members as well as for the elderly. These shared values still provide an opportunity for a dialog and transmission of knowledge b
