土地管理概述（Land Management Overview）.docVIP

土地管理概述（Land Management Overview） Abstract Land Management Overview Key points The concept and characteristics of land and land system, land policy, land management, land management, the basic content of the task. The first chapter of Land Management Overview The first section of the concept and characteristics of land The concept of a land, (a) the definition of land. The land is the natural history of the earths land surface is composed of complex landform, soil, rock, hydrology, climate and vegetation and other factors, including human activities of the past and present results. This definition includes the following meanings. (1) the land is complex. The nature of the land use and depends on the comprehensive effect of all elements of the elements, and does not depend on any one. (2) the land is a natural product. Human activities can cause changes in the nature of land related elements, change and influence the nature and use of land. (3) the land surface of the earth with the fixed position of the object space. (4) the land is part of the earths land surface. The land is out on the ocean surface, including inland waters, sea. (5) the land including the past and present human activities. (two) to distinguish the concept of land 1. of the land and soil Soil, refers to plant harvest land loose surface. It is formed in the parent material, climate, biology, topography and soil age factors such as the comprehensive effect of the independent nature. Soil and land, can be explained from the following aspects. (1) from the mutual relations, the soil is only a component of the land, the land containing soil. (2) from the essential characteristics, soil fertility is the essence, essential characteristics of land productivity. (3) from the morphological structure, the soil is loose surface weathering crust in the earth. And the land is a three-dimensional vertical section is composed of upper layer, surface layer and underground layer. 2. land and land Land not only refer