Application of spatial distribution to study the effect of elevation on the soil losses

• Main Authors: Yu-Lin Yang, 楊育琳
• Other Authors: 林俐玲
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/92245504801128214203

碩士 === 國立中興大學 === 水土保持學系所 === 105 === This study is based on Universal Kriging (UK) method to collocation the amount of soil loss isoclines map and overlay with 20m × 20m grid of the contour lines. The relationship between soil loss and elevation in Taichung Darken Scenic Area was analyzed. According to the results, the elevation between 100 and 600m, the average amount of soil loss is between 22.18 and 100.07 (m3/ha/year), the elevation between 600 and 900m, the average amount of soil loss is between 109.08~118.85 (m3/ha/year). The soil loss was increased with the increase of elevation significantly. However, when the elevation is more than 600m, the increase rate of soil loss is slowing down. Nonlinear regression results showed that, soil loss amount and elevation have significant correlated with R2 = 0.99.