作者: 埋葬 時間: 2025-3-21 23:44
Toward the New Stage of Environmental Forest Science Research in the 21st Century: IUFRO Status and ns involving individual scientists as networking members from diverse fields of research. Research conducted in IUFRO’s member organizations was always geared to and dependent on the needs of the respective time, society and its problems. IUFRO follows a mission, vision and guiding principles and de作者: ordain 時間: 2025-3-22 00:52
Environment and Production — Two Sides of the Same Coin or Incompatible Goals?at care in order to sustain healthy and productive ecosystems for future generations. Important global agreements, such as the United Nations Conference on Environment and Development held in Rio de Janeiro in June 1992, the Montreal Process 1993 and the Helsinki Process 1993 (FAO 1997) have been ra作者: Assault 時間: 2025-3-22 04:56 作者: A簡潔的 時間: 2025-3-22 11:11
Forests in Sustainable Mountain Developmentt the lives of over half the world’s population. The values of mountain forests to mountain people, those living downstream, and much of the remainder of humanity include their roles as centres of biodiversity; the storage and supply of water; the provision of fuelwood and many other wood and non-wo作者: harangue 時間: 2025-3-22 13:30 作者: harangue 時間: 2025-3-22 20:58
The Environment in Planning a Forest Road Networkproximately 19% of the total surface is threatened by soil erosion. When planning the forest road network, three main groups of factors are studied: natural conditions, state of forests and existing traffic communications. It is essential to find an equilibrium between the forests (nature), economic作者: 斜谷 時間: 2025-3-22 23:35
Forest Disturbance and Efficiency of Vehicle Logging Operations through Selective Cutting Harvest inion together with a winch skidder resulted in small disturbance when the grapple skidder mainly execute logging operations. Trees were injured often at slopes where gentler than ten degrees and at slopes steeper than twenty degrees. The former is because of easiness to run a skidder to make free dir作者: 圍裙 時間: 2025-3-23 02:06 作者: Intuitive 時間: 2025-3-23 05:40
Environmentally Friendly Resource Use — Taiwan’s Experience in Pulp and Paper Productionnsumption and capital effectiveness are also high on the list. An average of 5,213 hectares of plantation was established each year on the island in the past decade to provide a wood volume of approximately 26 thousand cubic meters annually. To complement the supply of increasingly expensive virgin 作者: 好開玩笑 時間: 2025-3-23 11:54 作者: 送秋波 時間: 2025-3-23 14:46
Carbon Absorption by Temperate Forest Ecosystems: Problems and Responses to a Changing Environmenta major effort is being devoted world-wide, by the scientific community. Forest ecosystems can contribute to mitigate these changes because of their key role played in the energy and mass exchanges between the atmosphere and the geosphere. Several, important scientific and methodological problems st作者: 起來了 時間: 2025-3-23 21:32 作者: 可用 時間: 2025-3-24 01:09 作者: TEM 時間: 2025-3-24 03:37
Review of Forest Culture Research in Japan: Toward a New Paradigm of Forest Cultureditionally, according to folklore forest culture meant the wise use of forest resources. However, its meaning changed radically in the 1950s as demand for forest commodities such as fuels and fertilizers virtually disappeared. On the other hand, ecological expectations based on global environmental 作者: 串通 時間: 2025-3-24 10:22
Forest Landscapes of the Kanto Region, Japan in the 1880’s and Human Impact on Them first time ever in Japan to cover a wide area based on a modern survey. The other primary material is a set of records which were written as supplementary explanations of these maps. The results show that most of the forests there at that time, other than special ones such as national forests, cons作者: 剛毅 時間: 2025-3-24 13:01 作者: Aspirin 時間: 2025-3-24 15:47
History, Condition and Management of Floodplain Forest Ecosystems in Europeaternary river alluvia. In spite of regional differences closely related types of production conditions developed with azonal and unique vegetation, showing the similar quality and intensity of production and decomposition processes.作者: 小木槌 時間: 2025-3-24 21:23 作者: Incommensurate 時間: 2025-3-25 02:48 作者: diabetes 時間: 2025-3-25 05:02
0924-5480 restry Research Organizations) Conference on Environmental Forest Science, which was jointly organized by IUFRO Division 8, "Forest Environment", and Kyoto University in Kyoto, Japan, on 19-23 October 1998. The International Union of Forestry Research Organizations (IUFRO) is one of the oldest scien作者: 整理 時間: 2025-3-25 08:08
https://doi.org/10.1007/978-3-662-40126-2e 21st century. To survive and to prosper in the next millennium, the Union must, however, reconsider its organizational and financial structure, develop further its network, put more emphasis on problem-oriented research, and act as a bridge between the scientific community and policy makers.作者: Apoptosis 時間: 2025-3-25 14:01
über die Methylenblaureduktion durch Glycins geared to and dependent on the needs of the respective time, society and its problems. IUFRO follows a mission, vision and guiding principles and defined goals and objectives. A strategy was adopted to define the orientation needed for the future. Basic statistical figures of the Union are presented.作者: precede 時間: 2025-3-25 19:10
Grenzfragen des Nerven- und Seelenlebensns, climatic conditions and water conditions is described. It is concluded that the knowledge and consideration of the forest’s natural laws and of the environmental factors is crucial for the planning of the forest road network.作者: congenial 時間: 2025-3-25 22:05 作者: gregarious 時間: 2025-3-26 02:33 作者: Perceive 時間: 2025-3-26 05:43 作者: 嘴唇可修剪 時間: 2025-3-26 09:28
Economic Value of the Carbon Sink Services of Costa Rica’s Forestry Plantationshe average storage that is likely to occur during the next 20 years, of approximately 8.5 million tons, is estimated at between 84 and 168 million U.S. dollars, as the prices paid for the bonds may vary widely.作者: 喃喃訴苦 時間: 2025-3-26 13:26 作者: 鞭打 時間: 2025-3-26 18:07 作者: 機械 時間: 2025-3-26 21:50
https://doi.org/10.1007/978-3-663-04517-5 the earlier years after road construction followed by a rapid reduction in deposits in subsequent years. Also, a relationship was developed to describe the area percent of the sediment accumulated on the slope in relation to the travel distance.作者: grieve 時間: 2025-3-27 03:26
https://doi.org/10.1007/978-3-642-99537-8and take up heavy metals. Especially, leachate absorption capacity of . × . and . was better than that of other poplars. The growth of . in certain landfills was better than that in mountain areas. In addition, poplar plantation in landfills can provide an environmentally friendly ecosystem between landfill and its neighbors.作者: 向外才掩飾 時間: 2025-3-27 08:19
https://doi.org/10.1007/978-3-663-07351-2. To develop a new forest culture, firsthand awareness of forests is essential. Forest recreation and environmental education in nearby forests included in greenway networks should play an important role in developing such awareness.作者: 禮節(jié) 時間: 2025-3-27 12:10 作者: 要素 時間: 2025-3-27 13:38 作者: Decongestant 時間: 2025-3-27 21:21
Status of Waste Generation, Disposal Ways and Poplar Species as a Landfill Cover in South Koreaand take up heavy metals. Especially, leachate absorption capacity of . × . and . was better than that of other poplars. The growth of . in certain landfills was better than that in mountain areas. In addition, poplar plantation in landfills can provide an environmentally friendly ecosystem between landfill and its neighbors.作者: 違反 時間: 2025-3-27 23:20 作者: infarct 時間: 2025-3-28 05:45
IUFRO: History and Role in the 21st Centurye 21st century. To survive and to prosper in the next millennium, the Union must, however, reconsider its organizational and financial structure, develop further its network, put more emphasis on problem-oriented research, and act as a bridge between the scientific community and policy makers.作者: NADIR 時間: 2025-3-28 09:10
Toward the New Stage of Environmental Forest Science Research in the 21st Century: IUFRO Status and s geared to and dependent on the needs of the respective time, society and its problems. IUFRO follows a mission, vision and guiding principles and defined goals and objectives. A strategy was adopted to define the orientation needed for the future. Basic statistical figures of the Union are presented.作者: 舔食 時間: 2025-3-28 12:57 作者: Malleable 時間: 2025-3-28 15:15
,Der (vorl?ufige) Stopp der Aktion T4,ection long skidding path, and the latter is because that felled trees often roll down on the slope to hit trees when hauled. Decreasing branching of skidding paths enables shorten the paths length and is expected to suppress forest disturbance.作者: 先兆 時間: 2025-3-28 18:50
über die Pneumatisation des Felsenbeinschanges in economic forces, such as trading patterns. Forest scientists have a responsibility to ensure that the implications of such changes are brought to the attention of those responsible for the management of forest ecosystems.作者: Ingredient 時間: 2025-3-29 02:24 作者: Lymphocyte 時間: 2025-3-29 05:28
https://doi.org/10.1007/978-3-663-05134-3 had fallen to about 6% by 1350. This remaining woodland was a valuable resource, and was managed and conserved down to the 20th century. It then fell into a period of neglect and destruction, from which it has lately been rescued by the efforts of conservationists.作者: outset 時間: 2025-3-29 10:34
Hans-Werner Eckert,Gisela Eckert-Reeseisted predominantly of pine trees or deciduous oak trees, and that most pine trees in the forests were less than 10 meters in height while most deciduous oak forests were less than 4 meters in height. Intensive use for fuel etc. on a rotation of 4 to 30 years was the background of such forests.作者: 配置 時間: 2025-3-29 14:02 作者: antipsychotic 時間: 2025-3-29 17:30
Forest Disturbance and Efficiency of Vehicle Logging Operations through Selective Cutting Harvest inection long skidding path, and the latter is because that felled trees often roll down on the slope to hit trees when hauled. Decreasing branching of skidding paths enables shorten the paths length and is expected to suppress forest disturbance.作者: 提升 時間: 2025-3-29 20:13
Forests as Ecosystems Within a Changing Environmentchanges in economic forces, such as trading patterns. Forest scientists have a responsibility to ensure that the implications of such changes are brought to the attention of those responsible for the management of forest ecosystems.作者: Hyperlipidemia 時間: 2025-3-30 03:36
Carbon Absorption by Temperate Forest Ecosystems: Problems and Responses to a Changing Environmentill need to be solved in order to fully understand mitigation potentials of temperate forests and to answer to questions about their optimal management strategies. In this paper, results of recent researches conducted on global change and temperate forests will be provided.作者: ANA 時間: 2025-3-30 07:04 作者: 會犯錯誤 時間: 2025-3-30 10:12
Forest Landscapes of the Kanto Region, Japan in the 1880’s and Human Impact on Themisted predominantly of pine trees or deciduous oak trees, and that most pine trees in the forests were less than 10 meters in height while most deciduous oak forests were less than 4 meters in height. Intensive use for fuel etc. on a rotation of 4 to 30 years was the background of such forests.作者: maverick 時間: 2025-3-30 15:19
Forestry Scienceshttp://image.papertrans.cn/e/image/312652.jpg作者: 東西 時間: 2025-3-30 19:50
https://doi.org/10.1007/978-94-011-5324-9Forestry; biodiversity; development; ecosystem; environment; forest; organization; Forestry Management; Tree作者: 松馳 時間: 2025-3-31 00:15
https://doi.org/10.1007/978-3-662-29590-8 conducted throughout the world since 1979 to 1996 in various Japanese cities, four German cities, one French city, three Brazilian cities, and in three Peruvian cities. Results of the opinion surveys were analyzed, and attitudes towards forest and nature summarized as follows;作者: defuse 時間: 2025-3-31 01:00 作者: 閃光東本 時間: 2025-3-31 05:12 作者: vanquish 時間: 2025-3-31 09:56 作者: 殺蟲劑 時間: 2025-3-31 14:37
978-94-010-6237-4Kluwer Academic Publishers 1998作者: 不朽中國 時間: 2025-3-31 19:56
Environmental Forest Science978-94-011-5324-9Series ISSN 0924-5480 Series E-ISSN 1875-1334 作者: 最小 時間: 2025-3-31 23:09 作者: 哄騙 時間: 2025-4-1 02:52 作者: 領(lǐng)袖氣質(zhì) 時間: 2025-4-1 07:44
https://doi.org/10.1007/978-3-663-05353-8at care in order to sustain healthy and productive ecosystems for future generations. Important global agreements, such as the United Nations Conference on Environment and Development held in Rio de Janeiro in June 1992, the Montreal Process 1993 and the Helsinki Process 1993 (FAO 1997) have been ra作者: irreparable 時間: 2025-4-1 12:48
Entgerbung und Chromnachgerbung,erally with a limited budget. This cannot be achieved merely by gathering data about the forest resource. It is also necessary to transform the data into useful information, based on new research findings. One of the challenges facing forestry research is the quest for more effective, varied and fle作者: leniency 時間: 2025-4-1 16:25
,über die Nachwirkung der Gasteiner Kur,t the lives of over half the world’s population. The values of mountain forests to mountain people, those living downstream, and much of the remainder of humanity include their roles as centres of biodiversity; the storage and supply of water; the provision of fuelwood and many other wood and non-wo作者: 指數(shù) 時間: 2025-4-1 21:09
