Quantitative studies on soil macropores under artificial Chinese pine(Pinus tabuleaformis Carr.)forest in loess hilly region Distribution of soil macropores and their influence on saturated hydraulic conductivity in the Huoditang forest region of the Qinling Mountains Effect of lucerne-crop rotations on soil physical properties in the semiarid Loess Plateau of Central Gansu ANALYSIS OF SATURATED SOIL HYDRAULIC CONDUCTIVITY OF MOUNTAIN BROWN EARTH AND ELUVIAL CINNAMON SOIL IN BEIJING XISHAN Effects of vegetation rehabilitation on soil saturated hydraulic conductivity in Ziwuling Forest Area Characteristic of soil macropores under various types of forest coverage and their influence on saturated hydraulic conductivity in the Three Gorges Reservoir Area Physical degradation characteristics and mechanism of orchard soil in Weibei Region