2019_Evaluation of Rainfall Kinetic Energy and ErosivityinNorthern Taiwan using Kriging with Climate Characteristics

:::

農業知識庫

2019_Evaluation of Rainfall Kinetic Energy and ErosivityinNorthern Taiwan using Kriging with Climate Characteristics

作者：Kuo‐Wei Liao, Jia‐Jun Guo, Jen‐Chen Fan, Cheng‐Chun Lee, Chien Lin Huang; 公佈日期：109 年 04 月 27 日

知識庫查詢

期刊

399

A localized rainfall kinetic energy (E) equation and an erosivity map were developed, and the suitability of the universal soil loss equation (USLE) for assessing the soil erosion of a non-US region was investigated. After accurately measuring and gathering data regarding raindrop size using disdrometers in four northern Taiwan locations, this study investigated the drop size distribution under different conditions by categorizing the rainfall patterns to develop regression equations for estimating the unit volume-specific kinetic energy (KEmm) and the unit time-specific kinetic energy (KEtime) of northern Taiwan. Climate zoning, which is not considered in currently used designs, was then implemented along with two-stage cluster analysis to construct a rainfall erosivity (R) distribution map using the kriging model. The binary polynomial regression function of KEtime, which had the highest correlation (R2 = 0.98), was suggested to estimate E in northern Taiwan. It was found that the pattern and intensity (I) of rainfall will slightly affect E. The climatic influence on the root mean square of the semivariogram was significant, which suggests that climate zoning can help estimate the rainfall erosivity (R). The outcomes were extended to estimate R in areas without rainfall stations.

知識樹分類

消費者知識庫 > 水土保持類

2019_Evaluation of Rainfall Kinetic Energy and ErosivityinNorthern Taiwan using Kriging with Climate Characteristics - 農業知識入口網

2019_Evaluation of Rainfall Kinetic Energy and ErosivityinNorthern Taiwan using Kriging with Climate Characteristics

知識樹分類

相關檔案下載