It covers the whole forestry field, including the protection and management of forests, related rangelands, and water-sheds; utilization of forest products; and the economic aspects of forestry.
它涵盖了整个林业领域，包括森林、相关牧场和集水区的保护和管理，森林产品的利用以及林业的经济方面。
2
Multiple cropping vegetable and rice can improve soil utilization rate reduce plant diseases and insect pests and prevent soil stalinization in protective field.
稻菜复种可以提高土地利用率、少蔬菜的病虫害、止保护地内土壤的盐渍化。
3
If this field is left blank, the shipment sizes to customers (and therefore costs) will be based on the carrier definition and utilization.