Regional climate responses to the land use and land cover change in Heihe River Basin, China

2010 ◽  
Author(s):  
Liang Chen ◽  
Chuanyan Zhao ◽  
Zhaodong Feng
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
River Basin ◽  
Regional Climate ◽  
Heihe River Basin ◽  
Heihe River ◽  
Climate Responses

scholarly journals Land Use/Land Cover Change Induced Impacts on Water Supply Service in the Upper Reach of Heihe River Basin

2014 ◽  
Vol 7 (1) ◽  
pp. 366-383 ◽  
Author(s):  
Xiaoli Geng ◽  
Xinsheng Wang ◽  
Haiming Yan ◽  
Qian Zhang ◽  
Gui Jin
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Water Supply ◽  
Land Cover Change ◽  
River Basin ◽  
Heihe River Basin ◽  
Heihe River ◽  
Land Use Land Cover

scholarly journals Evaluation of the Effects of Land Cover Change on Ecosystem Service Values in the Upper Reaches of the Heihe River Basin, Northwestern China

2018 ◽  
Vol 10 (12) ◽  
pp. 4700 ◽  
Author(s):  
Minmin Zhao ◽  
Zhibin He
Keyword(s):  
Land Cover ◽  
Land Cover Change ◽  
River Basin ◽  
Ecosystem Service ◽  
Heihe River Basin ◽  
Northwestern China ◽  
Heihe River ◽  
Ecological Management ◽  
Ecological Protection ◽  
The Heihe River Basin

Ecological protection and restoration results in a series of complicated changes in land cover. Lack of research on the historical and potential effects of land cover change on ecosystem service value (ESV) hinders decision-making on trade-offs involved in environmental management. To address this gap, the effects of land cover change on ESV in the upper reaches of the Heihe River Basin in northwestern China were evaluated. First, on the basis of land cover maps for 2001, 2008 and 2015, the land cover map for 2029 was predicted with CA-Markov model. Then, the changes in ESV resulting from land cover change were valuated with the benefit transfer method. The results showed that the total ESV increased from $1207.33 million (USD) in 2001 to $1479.48 million (USD) in 2015, and the value was expected to reach $1574.53 million (USD) in 2029. The increase in ESV can be mainly attributed to expansion in areas of wetland. In this study, the elastic index was applied to identify areas that were more sensitive to ecological management, aiding in selecting sites for investment in ecological protection and restoration programs. Furthermore, the potential effects of land cover change on ESV was evaluated. The results are of great importance for guiding future ecological management.

scholarly journals Water Yield Variation due to Forestry Change in the Head-Water Area of Heihe River Basin, Northwest China

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Feng Wu ◽  
Jinyan Zhan ◽  
Jiancheng Chen ◽  
Chao He ◽  
Qian Zhang
Keyword(s):  
Land Use ◽  
Land Cover ◽  
River Basin ◽  
Heihe River Basin ◽  
Water Yield ◽  
Heihe River ◽  
Observation Data ◽  
Hydrological Process ◽  
Hydrological Simulation ◽  
Land Cover Data

Understanding the effects of forestation on the hydrological process is crucial to protecting water resources. In this study, the upstream Heihe River Basin is selected as the study area, which is the water source area of the whole basin. The grassland and forest are the main land use types, the proportion of which in the total land area is 21% and 50%, respectively. Firstly, a scenario of forestation was designed with the actual land cover data in 1980. Then a scenario with simulated land cover data in 1980 was established, in which the forest area increases by 12%. Thereafter a hydrological simulation was carried out with the actual and simulated land cover maps and the climate observation data during 1980–2010. The results suggested that the total water yield increased by 12.57 mm under the scenario with land use change during 1980–2010 compared with the simulation with the actual land cover in 1980. However, the results also indicated that the surface runoff reduced by 22.17 mm during the same period, indicating the forest land has “sponge” effects on the water resource in the mountainous watershed. These results may provide important information that supports operational practices, such as forest regeneration programs and watershed restoration.

scholarly journals Anthropic transformation in the Gurupi river basin, eastern Amazon

2019 ◽  
Vol 10 (3) ◽  
pp. 212-235
Author(s):  
Fabiana da Silva Pereira ◽  
Ima Célia Guimarães Vieira
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
River Basin ◽  
Forest Cover ◽  
Temporal Changes ◽  
Amazon Region ◽  
Digital Data ◽  
Forest Protection ◽  
Spatial And Temporal Changes

The objective of this paper was to evaluate the degree of anthropic transformation of a river basin in the Amazon region. We used the digital data of the TerraClass Project to calculate the Anthropic Transformation Index - ATI. In order to verify spatial and temporal changes along a decade in the Gurupi river basin, we used the database of the years 2004 and 2014. The results showed an increase of anthropic changes in the basin over a decade, as a result of forest cover conversion into agricultural and pastures areas. Although the Gurupi river basin remains at a regular level of degradation after a decade, the intensification of land use and land cover change is a threat to the few rainforest remnants of the river basin, which can lead the region to the next level of degradation, if effective forest protection, conservation and restoration actions are not implemented in the region.  

Sign in / Sign up

Export Citation Format

Share Document