重庆市武隆县芙蓉洞是世界自然遗产,但随着旅游经济的快速发展,芙蓉洞的洞穴景观发生退化,影响了旅游业的可持续发展。本研究分析了温度、湿度、CO2浓度及洞穴通风等主要环境因子变化特征和规律,研究了洞穴景观退化机理,并提出其保护对...重庆市武隆县芙蓉洞是世界自然遗产,但随着旅游经济的快速发展,芙蓉洞的洞穴景观发生退化,影响了旅游业的可持续发展。本研究分析了温度、湿度、CO2浓度及洞穴通风等主要环境因子变化特征和规律,研究了洞穴景观退化机理,并提出其保护对策。游人和洞穴灯光释放的能量导致芙蓉洞内气温升高。由于洞内外的温度差和空气流通,洞穴内表现出“夏季高温、冬季干燥”的特征。洞穴CO2浓度会随游人进入的数量增加而明显升高。洞穴升温、灯光热量释放,及空气对流导致洞穴湿度降低,使景观产生干裂和风化等现象。气流带入的洞外气体及高浓度CO2溶解于水汽,溶蚀洞穴景观。洞穴灯光为苔藓类植物生长提供了条件,附着于洞穴景观的表面;以及洞穴大气粉尘的进入,致使洞穴景观暗沉发黑。洞穴内部环境保护能有效防止洞穴景观退化,保证游客健康旅游,实现旅游资源的可持续开发利用。Furong Cave in Wulong County of Chongqing is a world natural heritage, but with the rapid development of the tourism economy, the cave landscape of Furong Cave has been degraded, which has affected the sustainable development of tourism. In this study, the characteristics and rules of major environmental factors such as temperature, humidity, CO2 concentration and cave ventilation were analyzed, the mechanism of cave landscape degradation was studied, and the protection measures were proposed. The energy released by visitors and cave lights causes the temperature inside Furong Cave to rise. Due to the temperature difference and air circulation inside and outside the cave, the cave shows the characteristics of “high temperature in summer and dry in winter”. The CO2 concentration of the cave will increase significantly with the increase in the number of visitors entering the cave. The warming of the cave, the release of heat from lighting, and air convection lead to a decrease in humidity within the cave, causing phenomena such as drying, cracking, and weathering of the landscape. The gas outside the cave and the high concentration of CO2 brought by the airflow dissolve in the water vapor and dissolve the cave landscape. Cave light provides conditions for the growth of bryophytes, which adhere to the surface of the cave landscape;And the entry of atmospheric dust into the cave, causing the cave landscape dark and black. Cave interior environmental protection can effectively prevent the degradation of the cave landscape, ensure the healthy tourism of tourists, and realize the sustainable development and utilization of tourism resources.展开更多
通过对桂林凉风洞洞穴内、外温湿度、 p CO 2进行连续高频监测,发现洞穴温度受大气度温影响呈现出季节性变化规律。由于受到洞穴结构的阻隔作用影响,洞穴由外向里的温度变化幅度逐渐变小,并且响应的时间存在季节性差异。监测数据表明:...通过对桂林凉风洞洞穴内、外温湿度、 p CO 2进行连续高频监测,发现洞穴温度受大气度温影响呈现出季节性变化规律。由于受到洞穴结构的阻隔作用影响,洞穴由外向里的温度变化幅度逐渐变小,并且响应的时间存在季节性差异。监测数据表明:洞穴内部温度的季节性变化幅度明显低于洞外气温变化幅度。比较洞内、外温度的时间序列发现,在季节尺度上洞穴温度升温阶段滞后时间长(与外部通风的气温流动交换慢),降温阶段滞后时间短(与外部通风的气温流动交换快,呈现突变特征),这可能与不同季节洞穴内部结构的“缓冲作用”的强弱变化有关。该洞穴空气中 p CO 2存在明显的夏季高、冬季低的季节性变化特征。并且外界大气环境季节性变化和洞穴上覆动植物的季节性活动,使得洞穴 p CO 2主控因素也存在季节性差异。展开更多
基金国家自然科学基金项目“青藏高原东南缘晚更新世以来地球关键带演化过程”(42361144879)“青藏高原及周缘新生代大陆风化沉积记录研究”(41991323)+4 种基金青藏高原第二次综合科学考察研究任务七“高原生长与演化”专题四“碰撞以来古地理格局与构造地貌过程”(2019QZKK0704)云南省科技领军人才项目“建设云南省地球系统科学重点实验室”(202005AB160008)云南省基础研究计划项目重点项目“滇西南晚更新世和平文化人类植物利用及环境适应性”(202301BF070001-005)兴滇英才支持计划“滇西史前人类植物资源利用及其环境适应性”Queensland-Chinese Academy of Sciences Collaborative Science Fund“Past Asian-Australian MonsoonVariability”(QCAS036,045GJHZ2023001MI)。
文摘重庆市武隆县芙蓉洞是世界自然遗产,但随着旅游经济的快速发展,芙蓉洞的洞穴景观发生退化,影响了旅游业的可持续发展。本研究分析了温度、湿度、CO2浓度及洞穴通风等主要环境因子变化特征和规律,研究了洞穴景观退化机理,并提出其保护对策。游人和洞穴灯光释放的能量导致芙蓉洞内气温升高。由于洞内外的温度差和空气流通,洞穴内表现出“夏季高温、冬季干燥”的特征。洞穴CO2浓度会随游人进入的数量增加而明显升高。洞穴升温、灯光热量释放,及空气对流导致洞穴湿度降低,使景观产生干裂和风化等现象。气流带入的洞外气体及高浓度CO2溶解于水汽,溶蚀洞穴景观。洞穴灯光为苔藓类植物生长提供了条件,附着于洞穴景观的表面;以及洞穴大气粉尘的进入,致使洞穴景观暗沉发黑。洞穴内部环境保护能有效防止洞穴景观退化,保证游客健康旅游,实现旅游资源的可持续开发利用。Furong Cave in Wulong County of Chongqing is a world natural heritage, but with the rapid development of the tourism economy, the cave landscape of Furong Cave has been degraded, which has affected the sustainable development of tourism. In this study, the characteristics and rules of major environmental factors such as temperature, humidity, CO2 concentration and cave ventilation were analyzed, the mechanism of cave landscape degradation was studied, and the protection measures were proposed. The energy released by visitors and cave lights causes the temperature inside Furong Cave to rise. Due to the temperature difference and air circulation inside and outside the cave, the cave shows the characteristics of “high temperature in summer and dry in winter”. The CO2 concentration of the cave will increase significantly with the increase in the number of visitors entering the cave. The warming of the cave, the release of heat from lighting, and air convection lead to a decrease in humidity within the cave, causing phenomena such as drying, cracking, and weathering of the landscape. The gas outside the cave and the high concentration of CO2 brought by the airflow dissolve in the water vapor and dissolve the cave landscape. Cave light provides conditions for the growth of bryophytes, which adhere to the surface of the cave landscape;And the entry of atmospheric dust into the cave, causing the cave landscape dark and black. Cave interior environmental protection can effectively prevent the degradation of the cave landscape, ensure the healthy tourism of tourists, and realize the sustainable development and utilization of tourism resources.
文摘通过对桂林凉风洞洞穴内、外温湿度、 p CO 2进行连续高频监测,发现洞穴温度受大气度温影响呈现出季节性变化规律。由于受到洞穴结构的阻隔作用影响,洞穴由外向里的温度变化幅度逐渐变小,并且响应的时间存在季节性差异。监测数据表明:洞穴内部温度的季节性变化幅度明显低于洞外气温变化幅度。比较洞内、外温度的时间序列发现,在季节尺度上洞穴温度升温阶段滞后时间长(与外部通风的气温流动交换慢),降温阶段滞后时间短(与外部通风的气温流动交换快,呈现突变特征),这可能与不同季节洞穴内部结构的“缓冲作用”的强弱变化有关。该洞穴空气中 p CO 2存在明显的夏季高、冬季低的季节性变化特征。并且外界大气环境季节性变化和洞穴上覆动植物的季节性活动,使得洞穴 p CO 2主控因素也存在季节性差异。
