Nutrient  Interception  by  a  Riparian  Forest  Buffer  Strip  from Adjacent Orchard near Reservoir : Two Case Studies in Taiwan

Zueng-Sang Chen; Chang-Fu Hsieh; Jen-Chyi Liu; Chung-Ming Lin; 陳尊賢; 謝長富; 劉禎祺; 林崇明

Nutrient Interception by a Riparian Forest Buffer Strip from Adjacent Orchard near Reservoir : Two Case Studies in Taiwan

Other Title

河岸森林緩衝帶對水庫鄰近果園養分之截取作用-以台灣二水庫為例

Journal

農業非點源污染研討會論文集

Part Of

農業試驗所特刊第134號

Pages

137-160

ISBN

978-986-01-6341-4

Date Issued

2008-11

Date

2008-11

Author(s)

Zueng-Sang Chen

Chang-Fu Hsieh

Jen-Chyi Liu

Chung-Ming Lin

陳尊賢

謝長富

劉禎祺

林崇明

URI

https://scholars.tari.gov.tw/handle/123456789/6979

Abstract

Two case studies, including Techi reservoir located at Taichung county, central Taiwan, and Feitsui reservoir located at Taipei county, northern Taiwan, were selected to study the effect of nutrient interception by a riparian forest buffer strip receiving the adjacent orchard region by applying the high and low quantity of chemical fertilizers, respectively. The widths of riparian forest buffer strip are at least 50 meters in these two case study sites. The composition, spatial variability and seasonal changes of cations and anions in soil solution collecting from orchard, interface and riparian buffer zones were analyzed to control the water quality in two water reservoirs. The results indicated that the soil nutrients in the orchard near Techi reservoir, especially for the ions of phosphate, K, Ca, Mg, and ammonium-N, can be significantly intercepted by a forest buffer strip within 30 meters. Owing to no any application of chemical fertilizers in the orchard near Feitsui reservoir since 1987, the nutrient concentration of different ions in soil solution is very low. This low concentration of ions in soil solution released from orchard region near Feitsui reservoir can be intercepted in the interface area between the orchard region and forest buffer strip. The results also indicate that the width of riparian buffer strip needs at least 10 meters to intercept the soluble nutrients under this very low input of chemical fertilizers. We make sure that enough width, at least 30 meters of riparian buffer strips for these two case studies, can be regarded as a nutrient sink to intercept the soil nutrients soluble from orchard region and keep good water quality in the reservoirs.

Event(s)

農業非點源污染研討會

Proceedings of Conference on Non-pointPollution from Agriculture

Subjects

Riparian forest buffer strip

buffer width

eutrophication

soil solution

water quality

interception

nutrient sink

Type

conference paper

File(s)

Name

publication_no134_10.pdf

Size

1.02 MB

Format

Adobe PDF

Checksum

(MD5):5f2bc729c3196d30cb194a3ea2078b2c