Soil physical properties of different hedgerow systems in upper reaches of Yangtze River. Study on D ifferences and Restora tion Degrees of the So il Physica l Propertiesof Tropica lMontane Secondary Forest in Ha inan Island Spatiotemporal heterogeneity and its formation causes of soil physical properties in karst peak-cluster depression area of northwest Guangxi, China. Effect of ice-snow damage on soil characteristics in a Cunninghamia lanceolata stand Effects of self-sown grass on soil physical properties and microbial diversity of pear orchards in yellow river delta Spatial heterogeneity of soil physical properties in Phyllostachys heterocycla cv pubescens forest, South Sichuan Bamboo Sea Effects of long-term chemical fertilization on soil physical properties of slope lands in the Loess Hilly Region Effects of different forms of soil disinfection on soil physical properties and cucumber growth THE UTILIZATION OF TROPICAL SECONDARY FOREST AND THE CHANGE OF SOIL PHYSICAL PROPERTIES Analysis and Evaluation of the Effect of Grazing on Forest Land and Tree Growth