Manage irrigation soil information using geographic information system
碩士 === 國立臺灣大學 === 農業工程研究所 === 83 === Soil properties (especially soil moisture indices) are key factors in the management of agricultural production system. Soil information， with its spatially distributed characteristics，can be efficiently managed with the...
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1995
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| Online Access: | http://ndltd.ncl.edu.tw/handle/70043746577220830954 |
| Summary: | 碩士 === 國立臺灣大學 === 農業工程研究所 === 83 === Soil properties (especially soil moisture indices) are
key factors in the management of agricultural production
system. Soil information， with its spatially distributed
characteristics，can be efficiently managed with the
geographic information system (GIS). This study is to
cooperate the related soil information into a building block
for the GIS of agricultural production system.
Soil information is vital for irrigation planning. Soil
properties for some specific area are usually needed in the
planning process. Three methods are used in this study to
get soil information for any arbitrary area：
(1) weighted average using the distance form the nearby soil
sampling points.
(2) interpolation form the soil property contour.and
(3) interpolation form the sand/clay percentage contours.
The sand/clay percentage are then used for the prediction
of soil moisture indices. The study also persents a method
for examination of the efficiency and adequacy of the density
and distribution of soil sampling points.
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