𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Estimating the evolution of vegetation cover and its hydrological impact in the Mekong River basin in the 21st century

✍ Scribed by Hiroshi Ishidaira; Yuichi Ishikawa; Susumu Funada; Kuniyoshi Takeuchi

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
961 KB
Volume
22
Category
Article
ISSN
0885-6087

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The terrestrial biosphere plays a key role in regional energy and water cycles. Thus, for long‐term hydrological predictions, possible future changes in vegetation cover must be understood. This study examined the evolution of vegetation cover in the 21st century and its estimated impact on river discharge in the Mekong River basin. Based on climatic predictions (TYN SC 2·03) under the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios (IPCC SRES) A1FI, A2, B1, and B2, changes in vegetation type and the leaf area index (LAI) were simulated using a Lund‐Potsdam‐Jena‐Dynamic Global Vegetation Model (LPJ‐DGVM) and Terrestrial Biogeochemical Cycle Model (BIOME‐BGC). The estimated LAI was then used in the rainfall‐runoff analysis in the Yamanashi Distributed Hydrological Model (YHyM).

The simulation results indicated a significant change in vegetation type mainly on the Tibetan Plateau and in mountainous areas, with the degree of change differing for each SRES scenario; LAI increases around the edge of the Tibetan Plateau and decreases in the lower reaches of the basin; and more conspicuous changes in river discharge in upstream areas than in the middle to lower reaches, mainly due to increases in precipitation in the plateau region. After the 2050s, the results suggested changes in river discharge will be slowed due to changes in evapotranspiration. Copyright © 2008 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

Impact of paddy irrigation levels on flo
Impact of paddy irrigation levels on floods and water use in the Mekong River basin
✍ Takao Masumoto; Pham Thanh Hai; Katsuyuki Shimizu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 504 KB

## Abstract During the Asian monsoon, water use is considered to be well integrated because of the sustainable use of the agricultural water supply. From the viewpoint of watershed management, paddy areas help regulate floods by serving as retarding basins (ponds), but they also ensure a rational s

Changes in components of the hydrologica
Changes in components of the hydrological cycle in the Yellow River basin during the second half of the 20th century
✍ Changming Liu; Hongxing Zheng 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 189 KB 👁 2 views

## Abstract The Yellow River basin of China, located in the semi‐humid, semi‐arid and arid climatic zones, is now confronted with serious problems of water deficit. With regard to intensified human activities and climatic change, knowledge about changes in the regional hydrological cycle should be

Estimating the distribution of snow wate
Estimating the distribution of snow water equivalent and snow extent beneath cloud cover in the Salt–Verde River basin, Arizona
✍ N. P. Molotch; S. R. Fassnacht; R. C. Bales; S. R. Helfrich 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 470 KB

## Abstract The temporal and spatial continuity of spatially distributed estimates of snow‐covered area (SCA) are limited by the availability of cloud‐free satellite imagery; this also affects spatial estimates of snow water equivalent (SWE), as SCA can be used to define the extent of snow telemetr

Ecohydrological evolution model on ripar
Ecohydrological evolution model on riparian vegetation in hyperarid regions and its validation in the lower reach of Tarim River
✍ Dengfeng Liu; Fuqiang Tian; Heping Hu; Mu Lin; Zhentao Cong 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 600 KB

## Abstract The evolution of the ecohydrological system driven by external climatic forcing and internal feedbacks between vegetation and hydrology, which is more remarkable in arid and semiarid regions, has attracted substantial research attention in recent years. To examine critically the state‐o

Long-term change of seasonal snow cover
Long-term change of seasonal snow cover and its effects on river runoff in the Tarim River basin, northwestern China
✍ Changchun Xu; Yaning Chen; Yimit Hamid; Tiyip Tashpolat; Yapeng Chen; Hongtao Ge 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 271 KB 👁 1 views

## Abstract Spatio‐temporal variation of snow depth in the Tarim River basin has been studied by the empirical orthogonal function (EOF) based on the data collected by special sensor microwave/imager (SSM/I) and scanning multichannel microwave radiometer (SMMR) during the period from 1979 to 2005.