noxious
发表于 2025-3-28 17:34:08
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政府
发表于 2025-3-28 20:36:15
The Impact of Public Harvest in the USA on North American Timber and Product Marketsduring the 1960s and 1970s as timber management programs were established to meet rising domestic wood needs. Harvest fell sharply in the 1990s as management focus shifted toward the provision of ecosystem services. The Timber Assessment Projection System is employed to examine what might have happe
set598
发表于 2025-3-28 23:50:02
The Role of Private Management Investment in Long-Term Supplyn timber management, primarily in the South. Is this a reasonable expectation, and how important are these investment inputs in shaping the projected future? Historical data on management inputs are limited. Planting and plantation area data suggest a fairly clear trend of intensifying management on
MELON
发表于 2025-3-29 05:30:04
Globalization and World Tradevers of economic globalization and related structural changes in US forest product markets, including currency exchange rates and differences in manufacturing costs that have contributed to the displacement of global manufacturing capacity. It includes detailed discussion of paper and paperboard tre
decode
发表于 2025-3-29 08:17:27
The Impacts of Climate Change on Forestrysciences and concerns about the potential impacts of climate change on forest ecosystems. These analyses suggested that forest ecosystems would be seriously impacted by climate change, with consequent impacts on the forest sector. It was not until the mid-1990s that the ecological and the economic i
散布
发表于 2025-3-29 13:33:36
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非秘密
发表于 2025-3-29 18:08:15
Long-Term Views of the US Land Base and on timberland composition by land cover type. A base case and alternative scenarios were simulated using the AREACHANGE projection system. Historical changes include forest area reductions in some regions due to conversion of forests to agricultural uses, such as to cropland on nonindustrial pr
熄灭
发表于 2025-3-29 21:05:47
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KEGEL
发表于 2025-3-30 00:58:52
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Vsd168
发表于 2025-3-30 05:08:25
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