Evaluation for Appropriate Tillage of Sandy Land in Arid Sandy Area Based on Limitation Factor Exclusion Method

Investigating and evaluating the quantity spatial distribution of arable sandy land in arid semiarid areas is great significance for sustainable development utilization resources maintenance stability structure function regional ecosystems. Based on characteristics soil, being without susceptible to wind erosion, this study used limiting factor exclusion method investigate evaluate areas. All soils were taken as evaluation objects (including visible invisible land). On basis following principle ecological protection, indicators methods determined. The results Hangjin Banner are follows: total area recessive was 1.2 × 106 hm2; accounted 42.6%, 57.5%. However, only 7.7% suitable farming, which current cultivated bare sand extremely-low-coverage grassland, inland tidal flats, other saline-alkali land. Even if these lands be sustainably after reclamation, reasonable irrigation engineering measures, field protective farming measures must taken. It hoped that can provide a valuable reference desertification control