As for drying the thick timber of Schima superba, the drying time is longer while using a normal temperature drying technology. By means of organically combining normal temperature drying with normal pressure superhea...As for drying the thick timber of Schima superba, the drying time is longer while using a normal temperature drying technology. By means of organically combining normal temperature drying with normal pressure superheated steam drying, not only could the drying time be reduce but drying quality was improved by the new technology. The key technology is controling temperature and humidity appropriately when drying technology was changed from normal pressure superheated steam to normal temperature.展开更多
研究珠江流域南亚热带季风气候区湿地松(Pinus elliottii)低效防护林采取异龄混交荷木(Schi ma su-perba)、大叶栎(Castanopsis fissa)改造后的林分结构、生物量、凋落物、土壤理化性质、林地涵养水源和固土功能、林地土壤侵蚀量和林分...研究珠江流域南亚热带季风气候区湿地松(Pinus elliottii)低效防护林采取异龄混交荷木(Schi ma su-perba)、大叶栎(Castanopsis fissa)改造后的林分结构、生物量、凋落物、土壤理化性质、林地涵养水源和固土功能、林地土壤侵蚀量和林分生长量等的变化规律及其影响作用,全面评价湿地松×荷木(大叶栎)异龄混交林的综合效益。展开更多
文摘As for drying the thick timber of Schima superba, the drying time is longer while using a normal temperature drying technology. By means of organically combining normal temperature drying with normal pressure superheated steam drying, not only could the drying time be reduce but drying quality was improved by the new technology. The key technology is controling temperature and humidity appropriately when drying technology was changed from normal pressure superheated steam to normal temperature.
文摘研究珠江流域南亚热带季风气候区湿地松(Pinus elliottii)低效防护林采取异龄混交荷木(Schi ma su-perba)、大叶栎(Castanopsis fissa)改造后的林分结构、生物量、凋落物、土壤理化性质、林地涵养水源和固土功能、林地土壤侵蚀量和林分生长量等的变化规律及其影响作用,全面评价湿地松×荷木(大叶栎)异龄混交林的综合效益。