Seasonal differences of energy fluxes among crop and grass ecosystems in semiarid region of southern Ningxia
宁南半干旱地区农田和草地生态系统能量通量的季节变化

Human activities have dramatically influenced terrestrial ecosystems through altering the surface energy balance in the atmosphere-land interactions. Understanding the surface energy balance in various vegetation surfaces and ecosystems is essential for evaluating the impacts of management activities on the succession of natural and anthropogenic ecosystems. In the semiarid region in Southern Ningxia of China, expanding agricultural and overgrazing grasslands has resulted in degradation of natural grass eco...