本研究通过对珠穆朗玛峰（以下简称“珠峰”）国家级自然保护区辐射场的全面观测，揭示了其时空变化规律及其对生态环境和气候的潜在影响。本研究通过建立覆盖高寒灌丛、高寒湿地和高寒荒漠草原等多种生态环境的气象梯度观测网络，应用先进的辐射观测设备，结合数据质量控制和自动化处理流程，获取了多年连续、高精度的四分量辐射通量实测数据。结果表明：（1）珠峰站和高寒灌丛站的净辐射通量在年际尺度上呈现年均增加 0. 7 W·m-2的趋势；（2）在多年月平均净辐射通量方面，珠峰站和高寒灌丛站从 1月的 15 W·m-2逐步增加，于 8月达到峰值 110 W·m-2后开始回落，至 12月降至 14 W·m-2。多年月平均向下短波辐射通量从1月的210 W·m-2逐渐升高，至6月达到最大值375 W·m-2，随后在7月显著下降至 230 W·m-2，并在 7-10月保持相对稳定，10月开始显著回落，12月降至最小值 200 W·m-2；（3）多年夏季日平均净辐射通量在珠峰站和高寒灌丛站从07:00（北京时，下同）的0 W·m-2开始增加，于13:00达到峰值530 W·m-2，随后逐渐降低，至20:00降为-110 W·m-2。多年夏季日平均向下短波辐射通量则从 07:00的 0 W·m-2增加，13:00达到 860 W·m-2的峰值后下降，21:00降为 0 W·m-2。冬季日平均净辐射通量从 08:00 的-120 W·m-2上升，至 14:00 达到最大值 370 W·m-2后逐渐减少，至 20:00 再次降为-120 W·m-2。冬季日平均向下短波辐射通量则从 08:00 的 0 W·m-2开始升高，14:00 达到最高值 840W·m-2后下降，20:00降为 0 W·m-2；（4）各站点之间的辐射通量差异显著，尤其在高寒湿地站与其他两站之间对比突出。高寒湿地站的年均净辐射、年均向下短波辐射、多年月平均净辐射、多年月平均向下短波辐射、夏冬季日平均净辐射及向下短波辐射均高于珠峰站和高寒灌丛站。本研究的结果为理解高海拔地区的气候变化提供了新的视角，并为遥感监测技术的发展、全球气候模式的改进以及高原地区环境保护策略的制定提供了关键数据支持。

This study，through comprehensive observations of the radiation field in the Everest National Nature Reserve（hereinafter referred to as "Everest"），reveals the spatiotemporal variation patterns and potential impacts on the ecological environment and climate. By establishing a meteorological gradient observation network covering diverse ecological environments，including alpine shrubs，alpine wetlands，and alpine desert grasslands，and utilizing advanced radiation observation equipment combined with data quality control and automated processing，the study collected multi-year，continuous，high-precision measurements of four-component radiation flux‐ es. The results show the following：（1）The net radiation flux at Everest and alpine shrub sites exhibits an annual increase of 0. 7 W·m-2 on an interannual scale；（2）In terms of multi-year monthly average net radiation flux， the values at Everest and alpine shrub sites increase from 15 W·m-2 in January，peak at 110 W·m-2 in August， and then decrease to 14 W·m-2 by December. The multi-year monthly average downward shortwave radiation flux rises from 210 W·m-2 in January to a maximum of 375 W·m-2 in June，followed by a significant drop to 230 W·m-2 in July，remains relatively stable from July to October，then sharply declines from October，reaching a minimum of 200 W·m-2 in December；（3）The multi-year summer daily average net radiation flux at Everest and alpine shrub sites rises from 0 W·m-2 at 07:00（Beijing Time，the same as after），peaks at 530 W·m-2 at 13:00， and declines to -110 W·m-2 at 20:00. The multi-year summer daily average downward shortwave radiation flux in‐ creases from 0 W·m-2 at 07:00，peaks at 860 W·m-2 at 13:00，and drops back to 0 W·m-2 at 21:00. In winter，the daily average net radiation flux rises from -120 W·m-2 at 08:00，reaches a maximum of 370 W·m-2 at 14:00， then decreases，reaching -120 W·m-2 again at 20:00. The daily average downward shortwave radiation flux in winter rises from 0 W·m-2 at 08:00，peaks at 840 W·m-2 at 14:00，and falls to 0 W·m-2 by 20:00；（4）There are significant differences in radiation flux among the stations，with the contrast being particularly prominent be‐ tween the alpine wetland station and the other two stations. The annual average net radiation，annual average downward shortwave radiation，multi-year monthly average net radiation，multi-year monthly average down‐ ward shortwave radiation，and the daily average net and downward shortwave radiation in both summer and winter are all higher at the alpine wetland station than at the Everest and alpine shrub stations. The results of this study provide new insights into understanding climate change in high-altitude regions and offer essential data sup‐ port for developing remote sensing monitoring technology，improving global climate models，and formulating environmental protection strategies in plateau areas.