World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Role of Vegetation and Landcover Dynamics on the Recycling of Water in Two Endorheic Watersheds of NW China (Gansu Province) : Volume 12, Issue 1 (26/01/2015)

By Matin, M. A.

Click here to view

Book Id: WPLBN0004012250
Format Type: PDF Article :
File Size: Pages 36
Reproduction Date: 2015

Title: Role of Vegetation and Landcover Dynamics on the Recycling of Water in Two Endorheic Watersheds of NW China (Gansu Province) : Volume 12, Issue 1 (26/01/2015)  
Author: Matin, M. A.
Volume: Vol. 12, Issue 1
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Matin, M. A., & Bourque, C. P. (2015). Role of Vegetation and Landcover Dynamics on the Recycling of Water in Two Endorheic Watersheds of NW China (Gansu Province) : Volume 12, Issue 1 (26/01/2015). Retrieved from http://hawaiilibrary.net/


Description
Description: Faculty of Forestry and Environmental Management, University of New Brunswick, 28 Dineen Drive, P.O. Box 4400, Fredericton, New Brunswick, E3B 5A3, Canada. In this study, we analysed the role of vegetation in the recycling of water in two endorheic watersheds in northwest China, namely within the Shiyang and Hei River watersheds (Gansu Province), along a gradient of elevation zones and within-zone landcover types. Each watershed was subdivided into four elevation zones representative of (i) oasis plains and foothills, and (ii) low-, (iii) mid-, and (iv) high-mountain elevations. By means of monthly summaries of enhanced vegetation index (EVI), DEM-height values, terrain orientation, and a decision-tree classifier, landcover in the study area (consisting of oases, deserts, and adjoining Qilian Mountains) was classified into 11 unique landcover types. Comparison of monthly vegetation phenology with precipitation and snowmelt dynamics within the same watersheds over a ten-year period (2000–2009) suggested that the onset of the precipitation season in the mountains (in May) was triggered by the greening of vegetation and increased production of water vapour at the base of the mountains. Seasonal evolution of in-mountain precipitation correlated fairy well with the temporal variation in oasis-vegetation coverage and phenology (of crops and grasses) characterised by monthly EVI, giving r2 values of 0.65 and 0.85 for the Shiyang and Hei River watersheds, respectively. Generally, comparisons between same-zone monthly precipitation volumes and EVI provided weaker correlations. Start of the growing season in the oases was shown to coincide with the discharge of meltwater from the low- to mid-elevations of the Qilian Mountains in mid-to-late March. Comparison of water volumes associated with in-mountain production of rainfall and snowmelt with that associated with actual evapotranspiration revealed that about 90% of the water flowing downslope to the oases was eventually returned to the Qilian Mountains as water vapour generated in the lowlands.

Summary
Role of vegetation and landcover dynamics on the recycling of water in two endorheic watersheds of NW China (Gansu Province)

Excerpt
Friedl, M. A., Sulla-Menashe, D., Tan, B., Schneider, A., Ramankutty, N., Sibley, A., and Huang, X. M.: MODIS Collection 5 global land cover: algorithm refinements and characterization of new datasets, Remote Sens. Environ., 114, 168–182, doi:10.1016/j.rse.2009.08.016, 2010.; Gao, X. J., Luo, Y., Lin, W. T., Zhao, Z. C., and Giorgi, F.: Simulation of effects of land use change on climate in China by a regional climate model, Adv. Atmos. Sci., 20, 583–592, 2003.; Gao, Y., Wang, G., Liu, H., Liu, Z., Lin, W., and Wang, J.: Landform effects the distribution and circular mode on groundwater in Shiyang River basin. Beiging, China, available at: http://en.cgs.gov.cn/Achievement/The34thCongress/Evolutional/18050.htm (last access: 3 July 2013), 2006.; Gates, J. B., Edmunds, W. M., Darling, W. G., Ma, J. Z., Pang, Z. H., and Young, A. A.: Conceptual model of recharge to southeastern Badain Jaran Desert groundwater and lakes from environmental tracers, Appl. Geochem., 23, 3519–3534, doi:10.1016/j.apgeochem.2008.07.019, 2008.; Greene, E. M., Liston, G. E., and Pielke, R. A.: Relationships between landscape, snowcover depletion, and regional weather and climate, Hydrol. Process., 13, 2453–2466, 1999.; Gu, J., Li, X., and Huang, C. L.: Land cover classification in Heihe River Basin with time series MODIS NDVI data, Fifth International Conference on Fuzzy Systems and Knowledge Discovery, Vol. 2, Proceedings, Jinan, Shandong, China, 477–481, doi:10.1109/Fskd.2008.517, 2008.; Hudson, I. L., Keatley, M. R., Beurs, K., and Henebry, G.: Spatio-temporal statistical methods for modelling land surface phenology, in: Phenological Research, edited by: Hudson, I. L. and Keatley, M. R., Springer, Netherlands, 177–208, 2010.; Huete, A. R., Didan, K., Miura, T., Rodriguez, E. P., Gao, X., and Fereira, L. G.: Overview of the radiometric and biophysical performance of the MODIS vegetation indices, Remote Sens. Environ., 83, 195–213, doi:10.1016/S0034-4257(02)00096-2, 2002.; Huo, Z. L., Feng, S. Y., Kang, S. Z., Li, W. C., and Chen, S. J.: Effect of climate changes and water-related human activities on annual stream flows of the Shiyang river basin in and North-West China, Hydrol. Process., 22, 3155–3167, doi:10.1002/Hyp.6900, 2008.; Ilesanmi, O. O.: Empirical formulation of onset, advance, and retreat of rainfall in Nigeria, J. Trop. Geogr., 34, 17–24, 1972.; Ji, X. B., Kang, E. S., Chen, R. S., Zhao, W. Z., Zhang, Z. H., and Jin, B. W.: The impact of the development of water resources on environment in arid inland river basins of Hexi region, Northwestern China, Environ. Geol., 50, 793–801, doi:10.1007/s00254-006-0251-z, 2006.; Jia, L., Shang, H., Hu, G., and Menenti, M.: Phenological response of vegetation to upstream river flow in the Heihe Rive basin by time series analysis of MODIS data, Hydrol. Earth Syst. Sci., 15, 1047–1064, doi:10.5194/hess-15-1047-2011, 2011.; Jin, X. M., Zhang, Y.-K., Schaepman, M. E., Clevers, J. G. P. W., and Su, Z.: Impact of elevation and aspect on the spatial distribution of vegetation in the qilian mountain area with remote sensing data, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXXVII, Part B7, Beijing, 2008.; Jin, X. M., Schaepman, M., Clevers, J., Su, Z. B., and Hu, G. C.: Correlation between annual runoff in the Heihe River to the vegetation cover in the Ejina Oasis (China), Arid Land Res. Manage., 24, 31

 

Click To View

Additional Books


  • The Hydrological Response of Baseflow in... (by )
  • Self-potential Investigations of a Grave... (by )
  • Use of Field and Laboratory Methods for ... (by )
  • The Origin of Summer Monsoon Rainfall at... (by )
  • Evaluation of Surface Properties and Atm... (by )
  • Model Study of the Impacts of Future Cli... (by )
  • A Trading-space-for-time Approach to Pro... (by )
  • Corrigendum to Calibration of Aerodynami... (by )
  • Modelling Catchment Hydrology Within a G... (by )
  • The Forgex Method of Rainfall Growth Est... (by )
  • Comment on a Praxis-oriented Perspective... (by )
  • Research Note:the Comparison of Two Mode... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.