scholarly journals Impacts of land use changes on net ecosystem production in the Taihu Lake Basin of China from 1985 to 2010

2017 ◽  
Vol 122 (3) ◽  
pp. 690-707 ◽  
Author(s):  
Xibao Xu ◽  
Guishan Yang ◽  
Yan Tan ◽  
Xuguang Tang ◽  
Hong Jiang ◽  
...  
Keyword(s):  
Land Use ◽  
Taihu Lake ◽  
Land Use Changes ◽  
Net Ecosystem Production ◽  
Lake Basin ◽  
Taihu Lake Basin ◽  
Ecosystem Production

scholarly journals Impacts of Land-Use Change on Habitat Quality during 1985–2015 in the Taihu Lake Basin

2019 ◽  
Vol 11 (13) ◽  
pp. 3513 ◽  
Author(s):  
Liting Xu ◽  
Sophia Chen ◽  
Yu Xu ◽  
Guangyu Li ◽  
Weizhong Su
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Habitat Quality ◽  
Taihu Lake ◽  
Scientific Basis ◽  
Landscape Patterns ◽  
Lake Basin ◽  
Lake Area ◽  
Hotspot Analysis ◽  
Taihu Lake Basin

Habitat quality (HQ) is of great significance to regional sustainable development, which is a key link for regional ecological security and human welfare. Assessing the temporal and spatial evolution of HQ caused by land-use change could provide a scientific basis for regional ecological protection and land management. Here, based on the ArcGIS platform and the InVEST model, this study quantified the spatial and temporal evolutions of land use, landscape patterns, and HQ from 1985 to 2015, in Taihu Lake Basin (TLB). Hotspot analysis tools were used to identify the spatial agglomeration and evolution characteristics of HQ in TLB. The results showed that, (1) the land use and landscape pattern in TLB experienced dramatic change process during 1985–2015, with the dominating conversion being from farmland to construction land, which led to an increase in landscape heterogeneity and fragmentation. (2) The HQ was generally reduced in the past 30 years. In particular, the decline of HQ was extremely severe in the peripheral area of cities and roads, due to urban sprawl. (3) Regarding the spatial distribution of HQ, the northern and eastern areas were generally higher, while the western and southern areas were generally lower. The hotspots areas were mainly located in the southwestern mountain area and west-central lake area, while the cold spots areas were mainly located in urban areas in the north and the east. (4) The area and degree of habitat degradation were both increased significantly due to land-use change, and the degradation of the Taihu Lake was highlighted. Strengthening the ecological environment management and reducing the threat of urban expansion to the HQ is urgently required. This study could help understand HQ of the TLB and provide a scientific basis for decision-makers.

scholarly journals Assessing the Hydrologic Impacts of Land Use Change in the Taihu Lake Basin of China from 1985 to 2010

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1512 ◽  
Author(s):  
Pengcheng Li ◽  
Hengpeng Li ◽  
Guishan Yang ◽  
Qi Zhang ◽  
Yaqin Diao
Keyword(s):  
Land Use ◽  
Growth Rate ◽  
Taihu Lake ◽  
Spatial Clustering ◽  
High Growth ◽  
Water Yield ◽  
Lake Basin ◽  
Spatial Difference ◽  
Total Water ◽  
Taihu Lake Basin

In recent decades, the land use patterns in the Taihu Lake Basin (TLB) have undergone tremendous change. Assessing the response of land surface hydrological processes caused by land use change is conducive to basin water resource management and the prevention of urban flooding. The water yield under different land use scenarios in 1985, 1995, 2000, 2005, and 2010 were calculated by the STREAM model. During the study period of 1985–2010, the contribution of farmland to the total water yield decreased from 47.20% to 35.2%. The contribution of construction land to the total water yield increased from 10.50% to 25.82%. There was a significant spatial difference in the growth of the water yield in 1985–2010. The Pudong sub-region, Puxi sub-region, Yangchengdianmao sub-region, and the Wuchengxiyu sub-region, with relatively faster urban development, also had higher water yield growth rates. During the study period, the growth rate of water yields in towns showed a spatial clustering feature. MI increased from 0.22 to 0.38, indicating that this spatial clustering feature had an increasing trend. The results of an LISA analysis showed that there was a significant spatial difference in the growth rate of water yield in the TLB. The high growth centers are mainly located in the north of the basin, while the low growth centers are mainly located in the southwest of the basin. At the same time, the center of the high growth rate of water yield showed a certain trend of expansion and transfer. Regression analysis showed that urban development had a significant impact on water yield; for every increase of 1 km2 of construction land in the TLB, there was an increase of water yield of more than 300,000 m3. Further study indicated that the growth of local water production in TLB was much higher than the average value of the basin, and it was significantly related to the gross domestic product (GDP) per capita.

Industrial and agricultural effects on water environment and its optimization in heavily polluted area in Taihu Lake Basin, China

2013 ◽  
Vol 23 (2) ◽  
pp. 203-215 ◽  
Author(s):  
Haixia Zhao ◽  
Bensheng You ◽  
Xuejun Duan ◽  
Stewart Becky ◽  
Xiaowei Jiang
Keyword(s):  
Taihu Lake ◽  
Water Environment ◽  
Polluted Area ◽  
Lake Basin ◽  
Taihu Lake Basin ◽  
Heavily Polluted Area
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