Track 2-3-1: Integrated Nutrient Management for Soil Health and Effects on Quality of Production

Description

Grasslands cover vast land areas in semi-arid and semi-humid regions. Sand dunes, most of which are fixed sand dunes, form a large portion of grasslands. Vegetation on fixed sand dunes is an important part of grassland ecosystem productivity, and topographic position is one of the important factors resulting in the differences among vegetation, soil, etc. (Sakai and Ohsawa, 1994; Nagamatsu and Miura, 1997).

An important component of soil fauna ecology is to analyze the distribution of soil fauna and its influencing factors. On the small scale, the ozone factors become the dominant factor affecting the soil fauna (Frouz et al., 2011). Topographic position is an important factor affecting the distribution of soil fauna on fixed sand dunes (Xin et al., 2013). This paper takes fixed sand dunes on the Songnen Grasslands as the research objects, and aims to determine the structure and diversity of soil mesofauna on the different positions of the fixed sand dunes.

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Dynamic of Soil Mesofauna of Fixed Sand Dunes on the Songnen Grasslands, Northeastern China

Grasslands cover vast land areas in semi-arid and semi-humid regions. Sand dunes, most of which are fixed sand dunes, form a large portion of grasslands. Vegetation on fixed sand dunes is an important part of grassland ecosystem productivity, and topographic position is one of the important factors resulting in the differences among vegetation, soil, etc. (Sakai and Ohsawa, 1994; Nagamatsu and Miura, 1997).

An important component of soil fauna ecology is to analyze the distribution of soil fauna and its influencing factors. On the small scale, the ozone factors become the dominant factor affecting the soil fauna (Frouz et al., 2011). Topographic position is an important factor affecting the distribution of soil fauna on fixed sand dunes (Xin et al., 2013). This paper takes fixed sand dunes on the Songnen Grasslands as the research objects, and aims to determine the structure and diversity of soil mesofauna on the different positions of the fixed sand dunes.