Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam

This study characterized the forest soil water retention o f four forest types m Thuong Tien Natural Reserve, Northern Vietnam. Forty forest plots were designed to measure forest structure, topography, and soil properties. Daily soil moisture o f 40 plots and rainfall were collected in a period o f...

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Main Author: Tran, Quang Bao
Format: Article
Language:English
Published: ĐHQGHN 2017
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Online Access:http://repository.vnu.edu.vn/handle/VNU_123/56581
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:VNU_123-565812018-08-03T08:51:24Z Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam Tran, Quang Bao Forest hydrology Soil water retention Soil moisture Forest degradation. This study characterized the forest soil water retention o f four forest types m Thuong Tien Natural Reserve, Northern Vietnam. Forty forest plots were designed to measure forest structure, topography, and soil properties. Daily soil moisture o f 40 plots and rainfall were collected in a period o f 60 consecutive days. Multi-linear regressions were used to inspect ứie relationship between forest structures, soil porosity and forest soil moisture. The environmental factors having sừong effect on forest soil moisture are litter cover, vegetation ground cover, and soil porosity. Forest soil moisture can be predicted by the two regression models. First, prediction model o f soil moisture for a rainy day (R^ ^0.55 - 0.81). Second, prediction model o f soil inoisiure for a no rainy day (R^=0.52 - 0.83). Main predictors o f these models are rainfall, antecedent soil moisture and time interval (days). The root square means eưor (RSME) o f the predicted values o the models is 2.03%. Forest soil water retention, a function o f soil moisture, soil depth and bulk density, varies among four forest types. The capability to retain water o f forest types ranks from moderate forest (401m m), in turn, rehabilitation forest (350mm), poor forest (346m ni), and mixed grass + shrub (249m m). Forest soil water retention also is monthly variability, mainly depending on annual rain regime. The highest capability o f water stored m soil is in August, and the lowest one is in February. 2017-08-11T08:25:24Z 2017-08-11T08:25:24Z 2012 Article Tran, Q. B. (2012). Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam. VNU Journal of Science, Earth Sciences Vol 28, No 3, 160-172 0866-8612 http://repository.vnu.edu.vn/handle/VNU_123/56581 en VNU Journal of Science, Earth Sciences application/pdf ĐHQGHN
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Forest hydrology
Soil water retention
Soil moisture
Forest degradation.
spellingShingle Forest hydrology
Soil water retention
Soil moisture
Forest degradation.
Tran, Quang Bao
Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam
description This study characterized the forest soil water retention o f four forest types m Thuong Tien Natural Reserve, Northern Vietnam. Forty forest plots were designed to measure forest structure, topography, and soil properties. Daily soil moisture o f 40 plots and rainfall were collected in a period o f 60 consecutive days. Multi-linear regressions were used to inspect ứie relationship between forest structures, soil porosity and forest soil moisture. The environmental factors having sừong effect on forest soil moisture are litter cover, vegetation ground cover, and soil porosity. Forest soil moisture can be predicted by the two regression models. First, prediction model o f soil moisture for a rainy day (R^ ^0.55 - 0.81). Second, prediction model o f soil inoisiure for a no rainy day (R^=0.52 - 0.83). Main predictors o f these models are rainfall, antecedent soil moisture and time interval (days). The root square means eưor (RSME) o f the predicted values o the models is 2.03%. Forest soil water retention, a function o f soil moisture, soil depth and bulk density, varies among four forest types. The capability to retain water o f forest types ranks from moderate forest (401m m), in turn, rehabilitation forest (350mm), poor forest (346m ni), and mixed grass + shrub (249m m). Forest soil water retention also is monthly variability, mainly depending on annual rain regime. The highest capability o f water stored m soil is in August, and the lowest one is in February.
format Article
author Tran, Quang Bao
author_facet Tran, Quang Bao
author_sort Tran, Quang Bao
title Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam
title_short Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam
title_full Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam
title_fullStr Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam
title_full_unstemmed Effects of Forest Degradation on Forest’s Soil Water Retention in Northern Vietnam
title_sort effects of forest degradation on forest’s soil water retention in northern vietnam
publisher ĐHQGHN
publishDate 2017
url http://repository.vnu.edu.vn/handle/VNU_123/56581
_version_ 1680967573349335040