Using Factor Analysis to Investigate Water Quality and Soil Properties in Ba-yien Area
Date Issued
2013
Date
2013
Author(s)
Lin, Wan-Ting
Abstract
Due to the changes in agricultural activities and the development of hillside, many common animals and plants threatened with the extinction and the environmental and ecological deterioration in rural areas. In order to strike a balance between the society and nature and make environmental resources sustainable, the ecosystem services in rural areas cause increasing attention. Bayien is the model of the rural transformation. The residents live in harmony lifestyle with natural environment, and the NGOs help them improve the local irrigation channel and environment. Therefore, this study is to identify the interaction between residents and the natural environment of harmonious coexistence by investigating bayien landscape environment, soil and water quality in irrigation channel, so that it can help other rural areas transfer to the sustainable and ecological community.
The method is using the factor analysis to discuss the changes of soil qualities in the different land use type, as well as to identify water quality characteristics of three different irrigation channels.
The results show that the factor of pHin the study area is the major distinction of different land-use patterns. The soil in paddy field has the higher pH (6.37) than other land use types. The farmers use the water from mountain for the irrigation for the long time and this cause the effect that the soil chemical properties change. It shows that Maintaining the paddy field will help to improve soil quality.
In addition, bayien irrigation channel have different quality characteristics. Irrigation channel 1 is made of concrete, therefore the concentration of HCO3- (25.32mg/L) is high. Due to there is the farms discharge in upstream, the orthophosphate concentration (0.05mg/L) in the irrigation channel 2 is higher than other irrigation channels. Irrigation channel 3 is located in the lower altitude of bayien village. There are many irrigation return flow go into the channel, so its water quality has a higher concentration of sulfate. In the biological survey records, the irrigation channel 1 was found no species. The irrigation channel 2 recorded 7 of 3 species. The irrigation channel 3 recorded 13 of 4 species and has the highest Simpson’s biodiversity index.
Subjects
八煙
因子分析
土壤特性
農田圳路
SDGs
Type
thesis
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