Effects of Different Water Stresses on Eco-physiological Characteristics of Hippophae rhamnoides Seedlings Biomass Allocation and Resource Use of Tilia Amurensis Rupr. Juvenile Under Different Planting Road of sustainable agriculture development and model of resource use in different countries The effects of plant density on soil water and plant growth on semi-arid loess hilly region Physiological and growth responses of Sabina vulgaris to disturbance of leaf removal Comparison of Yield and Resource Utilization Efficiency among Different Maize and Rice Cropping Systems in Middle Reaches of Yangtze River Responses of Plant Productivity and Nitrogen Use Efficiency to Nitrogen Fertilization Rate among Rice Varieties Released from Different Years in Liaoning Province PROBLEMS OF THE RELATIONSHIP OF HUMAN BEING AND NATURE AND SUSTAINABLE USE OF NATURAL RESOURCES Effects of severity of water stress on gas exchange characteristics of Caragana intermedia seedlings Research Progress of Natural Resource Utilization in Agroforestry System in China Matter Production and Resources Use Efficiency of Double-Cropping Silage Maize System Response of Nitrogen Use Efficiency to Plant Density and Nitrogen Application Rate for Maize Hybrids from Different Eras in Heilongjiang Province Comparison of Yield and Light-temperature Resource Use Efficiency between Wheat-Maize and Maize-Maize Cropping Systems