The alpine wetlands in QTP (Qinghai-Tibetan Plateau) have been profoundly impacted along with global climate changes. We employ satellite datasets and climate data to explore the relationships between alpine wetlands and climate changes based on remote sensing data. Results show that: 1) the wetland NDVI (Normalized Difference Vegetation Index) and GPP (Gross Primary Production) were more sensitive to air temperature than to precipitation rate. The wetland ET (evapotranspiration) across alpine wetlands was greatly correlated with precipitation rate. 2) Alpine wetlands responses to climate changes varied spatially and temporally due to different geographic environments, variety of wetland formation and human disturbances. 3) The vegetation responses of the Zoige wetland was the most noticeable and related to the temperature, while the GPP and NDVI of the Qiangtang Plateau and Gyaring-Ngoring Lake were significantly correlated with both temperature and precipitation. 4) ET in the Zoige wetland showed a significantly positive trend, while ET in Maidika wetland and the Qiangtang plateau showed a negative trend, implying wetland degradation in those two wetland regions. The complexities of the impacts of climate changes on alpine wetlands indicate the necessity of further study to understand and conserve alpine wetland ecosystems.

中文翻译：

---

基于遥感的青藏高原高寒湿地对气候变化的响应

随着全球气候变化，青藏高原高寒湿地受到了深刻影响。我们利用卫星数据集和气候数据，基于遥感数据探索高山湿地与气候变化之间的关系。结果表明：1）湿地NDVI（归一化植被指数）和GPP（总初级生产力）对气温的敏感性高于降水率。高寒湿地的湿地ET（蒸散量）与降水率密切相关。2）由于不同的地理环境、湿地形成的多样性和人类干扰，高寒湿地对气候变化的响应在时空上存在差异。3) 若尔盖湿地植被响应最为显着，与温度有关，而羌塘高原和嘉令-吴令湖的GPP和NDVI与温度和降水均呈显着相关。4）若尔盖湿地ET呈显着正趋势，麦迪卡湿地和羌塘高原ET呈负趋势，表明这两个湿地区域的湿地退化。气候变化对高山湿地影响的复杂性表明需要进一步研究以了解和保护高山湿地生态系统。