The high Zoige Basin (Ruoergai Plateau) on the eastern Tibetan Plateau is a fault depression formed during intensive uplifting of the Tibetan Plateau. The wetland is globally important in biodiversity and is composed ...The high Zoige Basin (Ruoergai Plateau) on the eastern Tibetan Plateau is a fault depression formed during intensive uplifting of the Tibetan Plateau. The wetland is globally important in biodiversity and is composed of marshes,bogs,fens,wet meadows and shallow water interspersed with low hills and sub-alpine meadows. Most of the Zoige wetlands have long been one of the most important grazing lands in China. Recent rangeland policy has allowed grazing,and usable wetland areas have been being legally allocated to individuals or groups of households on a long-term lease basis. Privatization of the wetland has impacted the Zoige wetlands in aspects of hydrologic condition,landscape and biodiversity. The uneven spatial distribution of water resources on private lands has led to the practice of extracting ground water,which has decreased the perched water table in Zoige. Fencing off the rangelands and grazing on expanding sand dunes have affected landscapes. Variation in the water table has led to the changes in vegetation diversity,resulting in the changes in wildlife and aquatic diversities and ecosystem processes. Making use all year round of the pasture that was previously grazed only in summer has shrunk the daily activity space of wildlife,and the newly erected fences blocked the movement of wild animals looking for food in the snow to lower and open areas. To maintain the favorable conditions of the Zoige wetland ecosystem,the author suggests that,in addition to biophysical research and implementation of conservation practices,there is an immediate need to initiate an integrated management program,increase public awareness of wetland functions and provide better training for the local conservation staff.展开更多
美国心脏病学会(American College of Cardiology,ACC)第70届科学年会于2021年5月15日至2021年5月17日以线上形式在美国亚特兰大召开。本次大会涵盖了与心血管疾病(cardiovascular disease,CVD)相关的临床实践、指南推荐和临床学术研究...美国心脏病学会(American College of Cardiology,ACC)第70届科学年会于2021年5月15日至2021年5月17日以线上形式在美国亚特兰大召开。本次大会涵盖了与心血管疾病(cardiovascular disease,CVD)相关的临床实践、指南推荐和临床学术研究(尤其是最新临床试验)等内容。糖尿病(CVD的"等危症")与肥胖是CVD的重要危险因素,脂肪肝同样作为慢性代谢性疾病被证实与CVD相关。本文就糖尿病及其他慢性代谢性疾病研究成果与学术观点进行总结,以飨读者。展开更多
文摘The high Zoige Basin (Ruoergai Plateau) on the eastern Tibetan Plateau is a fault depression formed during intensive uplifting of the Tibetan Plateau. The wetland is globally important in biodiversity and is composed of marshes,bogs,fens,wet meadows and shallow water interspersed with low hills and sub-alpine meadows. Most of the Zoige wetlands have long been one of the most important grazing lands in China. Recent rangeland policy has allowed grazing,and usable wetland areas have been being legally allocated to individuals or groups of households on a long-term lease basis. Privatization of the wetland has impacted the Zoige wetlands in aspects of hydrologic condition,landscape and biodiversity. The uneven spatial distribution of water resources on private lands has led to the practice of extracting ground water,which has decreased the perched water table in Zoige. Fencing off the rangelands and grazing on expanding sand dunes have affected landscapes. Variation in the water table has led to the changes in vegetation diversity,resulting in the changes in wildlife and aquatic diversities and ecosystem processes. Making use all year round of the pasture that was previously grazed only in summer has shrunk the daily activity space of wildlife,and the newly erected fences blocked the movement of wild animals looking for food in the snow to lower and open areas. To maintain the favorable conditions of the Zoige wetland ecosystem,the author suggests that,in addition to biophysical research and implementation of conservation practices,there is an immediate need to initiate an integrated management program,increase public awareness of wetland functions and provide better training for the local conservation staff.
文摘美国心脏病学会(American College of Cardiology,ACC)第70届科学年会于2021年5月15日至2021年5月17日以线上形式在美国亚特兰大召开。本次大会涵盖了与心血管疾病(cardiovascular disease,CVD)相关的临床实践、指南推荐和临床学术研究(尤其是最新临床试验)等内容。糖尿病(CVD的"等危症")与肥胖是CVD的重要危险因素,脂肪肝同样作为慢性代谢性疾病被证实与CVD相关。本文就糖尿病及其他慢性代谢性疾病研究成果与学术观点进行总结,以飨读者。
