In this paper, I carried on the research under the guidance of the theory of hierarchy of needs, and preventing a detailed work plan. During the research, we cleared for measures, which were ＂adhere to the people-ori...In this paper, I carried on the research under the guidance of the theory of hierarchy of needs, and preventing a detailed work plan. During the research, we cleared for measures, which were ＂adhere to the people-oriented, mining the potential of students, make up the insufficient to properly resolve the crisis, to create a learning atmosphere＂. So it provides a new idea for promoting the construction and development of college student cadres, and maintains the stability of the campus and the construction of harmonious campus.展开更多
Abstract＂ The abundance of Olea ferruginea in Malakand Division has been significantly reduced across its distribution range due to anthropogenic pressure in the recent past. A number of initiatives were taken for gr...Abstract＂ The abundance of Olea ferruginea in Malakand Division has been significantly reduced across its distribution range due to anthropogenic pressure in the recent past. A number of initiatives were taken for grafting this species to obtain better seeds for oil production, without the basic information on their ecology and management. To address this knowledge gap, we quantified the composition, structure and regeneration dynamics of Olea ferruginea forests in Malakand Division, Hindukush range of Pakistan. In the present study, five communities dominated by Oleaferruginea were identified using Ward＇s agglomerative cluster analysis. Total tree density ranged from 153-26o2 plants/ha, and basal area from 19.55 to 2353 m~ ha-1 with Olea having a relative density of 51% to 87% and basal area of 48% to 93%, respectively. The density of juveniles of the dominant and subordinate tree species were generally low which reflect their narrow distribution in the study area. Size-class distributions of O. ferruginea disclosed a bell-shaped pattern, indicating that forests were heavily exploited by local inhabitants in previous periods and recently by armed forces owing to security risks in the study area. The age （mean max. 300±34 years） and annual increment （3.2±1.2 years/cm） indicates that the species is long lived and generally slow growing among the different broad leaved species studied so far. However, the oldest trees can be found by the exploration of large diameter trees in the area. In addition, we found a stable linear relationship between the age and diameter （r2 = o.779）, indicating that diameter is a good predictor of age for this broad leaved species. In view of its relatively slow growth, longevity and positive ring-width characteristics O. ferruginea seems to be a suitable choice for dendroecological and dendrochronological studies in lesser Himalayan and Hindukush ranges of Pakistan. The results obtained from this study may help in understanding the composition, structure and regeneration dynamics of other subtropical broad leaved species.展开更多
Phlebiopsis gigantea strains registered in the European Union as biocontrol agents against root rot in forests （four from Great Britain and two from Finland） were compared using Ward＇s method with reference to： （...Phlebiopsis gigantea strains registered in the European Union as biocontrol agents against root rot in forests （four from Great Britain and two from Finland） were compared using Ward＇s method with reference to： （l） similarity of DNA-random amplified microsatellite （RAMS） ladders, （2） cellulase and peroxidase production and （3） acceleration of dry mass wood loss in Norway spruce The activity of the enzymes was tested in the initial phase of wood decay （30 d after inoculation） and indicated as the most active isolates： VFI0 and FCl5 for cellulase and FC16 and VFI0 for peroxidase production. The assessment of loss of wood six months after inoculation indicated isolate FC 15 as the most active. P. gigantea isolates similar in terms of enzyme activity indicated different patterns ofDNA microsatellite loci. At the same time, DNA-RAMS revealed similarities in isolates with different abilities to produce enzymes. However, some similarities and differences between isolates according to wood decay were found. No plain relationships between molecular characteristics and enzyme activity of the strains tested were observed. The results differentiated activity of tested isolates and suggested benefits of selecting P. gigantea strains for commercial use basing mainly on the assessment of wood loss activity.展开更多
"ALIGNING with Russia, aligning with the Communist Party and supporting peasants and workers," were the three policies put forward by Dr. Sun Yat-sen, pioneer of tile Chinese democratic revolution, at the Fi..."ALIGNING with Russia, aligning with the Communist Party and supporting peasants and workers," were the three policies put forward by Dr. Sun Yat-sen, pioneer of tile Chinese democratic revolution, at the First Kuomingtang (KMT) National Congress held in Guangzhou in early 1924. With the展开更多
文摘In this paper, I carried on the research under the guidance of the theory of hierarchy of needs, and preventing a detailed work plan. During the research, we cleared for measures, which were ＂adhere to the people-oriented, mining the potential of students, make up the insufficient to properly resolve the crisis, to create a learning atmosphere＂. So it provides a new idea for promoting the construction and development of college student cadres, and maintains the stability of the campus and the construction of harmonious campus.
文摘Abstract＂ The abundance of Olea ferruginea in Malakand Division has been significantly reduced across its distribution range due to anthropogenic pressure in the recent past. A number of initiatives were taken for grafting this species to obtain better seeds for oil production, without the basic information on their ecology and management. To address this knowledge gap, we quantified the composition, structure and regeneration dynamics of Olea ferruginea forests in Malakand Division, Hindukush range of Pakistan. In the present study, five communities dominated by Oleaferruginea were identified using Ward＇s agglomerative cluster analysis. Total tree density ranged from 153-26o2 plants/ha, and basal area from 19.55 to 2353 m~ ha-1 with Olea having a relative density of 51% to 87% and basal area of 48% to 93%, respectively. The density of juveniles of the dominant and subordinate tree species were generally low which reflect their narrow distribution in the study area. Size-class distributions of O. ferruginea disclosed a bell-shaped pattern, indicating that forests were heavily exploited by local inhabitants in previous periods and recently by armed forces owing to security risks in the study area. The age （mean max. 300±34 years） and annual increment （3.2±1.2 years/cm） indicates that the species is long lived and generally slow growing among the different broad leaved species studied so far. However, the oldest trees can be found by the exploration of large diameter trees in the area. In addition, we found a stable linear relationship between the age and diameter （r2 = o.779）, indicating that diameter is a good predictor of age for this broad leaved species. In view of its relatively slow growth, longevity and positive ring-width characteristics O. ferruginea seems to be a suitable choice for dendroecological and dendrochronological studies in lesser Himalayan and Hindukush ranges of Pakistan. The results obtained from this study may help in understanding the composition, structure and regeneration dynamics of other subtropical broad leaved species.
文摘Phlebiopsis gigantea strains registered in the European Union as biocontrol agents against root rot in forests （four from Great Britain and two from Finland） were compared using Ward＇s method with reference to： （l） similarity of DNA-random amplified microsatellite （RAMS） ladders, （2） cellulase and peroxidase production and （3） acceleration of dry mass wood loss in Norway spruce The activity of the enzymes was tested in the initial phase of wood decay （30 d after inoculation） and indicated as the most active isolates： VFI0 and FCl5 for cellulase and FC16 and VFI0 for peroxidase production. The assessment of loss of wood six months after inoculation indicated isolate FC 15 as the most active. P. gigantea isolates similar in terms of enzyme activity indicated different patterns ofDNA microsatellite loci. At the same time, DNA-RAMS revealed similarities in isolates with different abilities to produce enzymes. However, some similarities and differences between isolates according to wood decay were found. No plain relationships between molecular characteristics and enzyme activity of the strains tested were observed. The results differentiated activity of tested isolates and suggested benefits of selecting P. gigantea strains for commercial use basing mainly on the assessment of wood loss activity.
文摘"ALIGNING with Russia, aligning with the Communist Party and supporting peasants and workers," were the three policies put forward by Dr. Sun Yat-sen, pioneer of tile Chinese democratic revolution, at the First Kuomingtang (KMT) National Congress held in Guangzhou in early 1924. With the
