In Korea, damaging typhoons related to climate change have increased steadily since the 1990s. Red pine （Pinus densiflora） forests in Gwangneung Forest were greatly disturbed by typhoon Kompasu in 2010. A survey was...In Korea, damaging typhoons related to climate change have increased steadily since the 1990s. Red pine （Pinus densiflora） forests in Gwangneung Forest were greatly disturbed by typhoon Kompasu in 2010. A survey was carried out to clarify differences in ground beetle （Coleoptera： Carabidae） communities between forest gaps and undamaged forests. Ground beetles were sampled using pitfall traps from early May to late October 2011. Vegetation changes, litter layer, organic matter layer, and soil conditions were also measured. A total of 1035 ground beetles of 32 species were collected. Contrary to our expectation, species richness, abundance, and community structure of the ground beetles in forest gaps were similar to those in undamaged forests. Species richness and abundance of habitat type were also similar. However, species diversity and estimated species richness in forest gaps were significantly higher than in undamaged forests. These findings suggest that forest gaps formed by a typhoon did not lead to great change in ground beetle communities.展开更多
讨论了全新的1200 V/10 A SPM?智能功率模块。它是经过全面优化的智能型集成式IGBT逆变模块,提供良好的热性能和可靠的特性,适合工业风扇电机应用。它利用全新开发的NPT沟道IGBT以及先进的STEALTHTM续流二极管和内置自举二极管。HVIC、...讨论了全新的1200 V/10 A SPM?智能功率模块。它是经过全面优化的智能型集成式IGBT逆变模块,提供良好的热性能和可靠的特性,适合工业风扇电机应用。它利用全新开发的NPT沟道IGBT以及先进的STEALTHTM续流二极管和内置自举二极管。HVIC、多功能LVIC以及内置的热敏电阻为整个系统提供良好的可靠性能。该模块还利用DBC基板的技术优势,实现更佳的热性能。展开更多
基金supported by the Korea Forest Research Institute(Project FE 0100-2009-01,effect of climate change on forest ecosystem and adaptation of forest ecosystem)
文摘In Korea, damaging typhoons related to climate change have increased steadily since the 1990s. Red pine （Pinus densiflora） forests in Gwangneung Forest were greatly disturbed by typhoon Kompasu in 2010. A survey was carried out to clarify differences in ground beetle （Coleoptera： Carabidae） communities between forest gaps and undamaged forests. Ground beetles were sampled using pitfall traps from early May to late October 2011. Vegetation changes, litter layer, organic matter layer, and soil conditions were also measured. A total of 1035 ground beetles of 32 species were collected. Contrary to our expectation, species richness, abundance, and community structure of the ground beetles in forest gaps were similar to those in undamaged forests. Species richness and abundance of habitat type were also similar. However, species diversity and estimated species richness in forest gaps were significantly higher than in undamaged forests. These findings suggest that forest gaps formed by a typhoon did not lead to great change in ground beetle communities.
文摘讨论了全新的1200 V/10 A SPM?智能功率模块。它是经过全面优化的智能型集成式IGBT逆变模块,提供良好的热性能和可靠的特性,适合工业风扇电机应用。它利用全新开发的NPT沟道IGBT以及先进的STEALTHTM续流二极管和内置自举二极管。HVIC、多功能LVIC以及内置的热敏电阻为整个系统提供良好的可靠性能。该模块还利用DBC基板的技术优势,实现更佳的热性能。
