Simulation of Water-limiting Biomass Productivity of Chinese Pine Plantations and the Soil Desiccation Effect in 3 Sites with Different Annual Precipitation on Loess Plateau Modeling the changes of yield and deep soil water in apple orchards in Weibei rainfed highland Simulation of biomass and soil desiccation of Robinia pseudoacacia forestlands on semi-arid and semi-humid regions of China’s Loess Plateau Simulation of water productivity and soil desiccation effects of different planting density black locust forestlands on the Loess Plateau