一个希拉里 发表于 2025-3-21 17:00:06

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埋葬 发表于 2025-3-21 23:44:22

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

ordain 发表于 2025-3-22 00:52:14

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

Assault 发表于 2025-3-22 04:56:35

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A简洁的 发表于 2025-3-22 11:11:44

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

harangue 发表于 2025-3-22 13:30:05

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harangue 发表于 2025-3-22 20:58:53

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

斜谷 发表于 2025-3-22 23:35:17

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

围裙 发表于 2025-3-23 02:06:48

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Intuitive 发表于 2025-3-23 05:40:03

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
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查看完整版本: Titlebook: Environmental Forest Science; Proceedings of the I Kyoji Sassa Conference proceedings 1998 Kluwer Academic Publishers 1998 Forestry.biodive