Eutrophication investigation and assessment of the Daning River after water storage of the Three Gorges Reservoir

2005 ◽  
Vol 24 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Zhong Chenghua ◽  
Xing Zhiguo ◽  
Zhao Wenqian ◽  
Wang Derui ◽  
Deng Chunguang ◽  
...  
Keyword(s):  
Three Gorges Reservoir ◽  
Water Storage ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges

Seasonal variation and longitudinal distribution characters of cladocerans in the Three Gorges Reservoir

2009 ◽  
Vol 17 (5) ◽  
pp. 512
Author(s):  
Wu Hui-xian ◽  
Yao Jian-liang ◽  
Liu Yan ◽  
Xue Jun-zeng ◽  
Cai Qing-hua ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Three Gorges Reservoir ◽  
Longitudinal Distribution ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges

Preliminary Effects of Impounding on Vegetation in Drawdown Zone of the Three Gorges Reservoir Region

2010 ◽  
Vol 30 (3) ◽  
pp. 303-314 ◽  
Author(s):  
Zhi-Jun LU ◽  
Lian-Fa LI ◽  
Han-Dong HUANG ◽  
Min TAO ◽  
Quan-Fa ZHANG ◽  
...  
Keyword(s):  
Three Gorges Reservoir ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Three Gorges Reservoir Region ◽  
Drawdown Zone

scholarly journals Effects of Landscape Positions and Landscape Types on Soil Properties and Chlorophyll Content of Citrus in a Sloping Orchard in the Three Gorges Reservoir Area, China

2021 ◽  
Vol 13 (8) ◽  
pp. 4288
Author(s):  
Siyue Sun ◽  
Guolin Zhang ◽  
Tieguang He ◽  
Shufang Song ◽  
Xingbiao Chu
Keyword(s):  
Soil Properties ◽  
Chlorophyll Content ◽  
Three Gorges Reservoir ◽  
Slope Position ◽  
Three Gorges Reservoir Area ◽  
Three Gorges ◽  
Reservoir Area ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Landscape Types

In recent years, soil degradation and decreasing orchard productivity in the sloping orchards of the Three Gorges Reservoir Area of China have received considerable attention both inside and outside the country. More studies pay attention to the effects of topography on soil property changes, but less research is conducted from the landscape. Therefore, understanding the effects of landscape positions and landscape types on soil properties and chlorophyll content of citrus in a sloping orchard is of great significance in this area. Our results showed that landscape positions and types had a significant effect on the soil properties and chlorophyll content of citrus. The lowest soil nutrient content was detected in the upper slope position and sloping land, while the highest exists at the footslope and terraces. The chlorophyll content of citrus in the middle and upper landscape position was significantly higher than the footslope. The redundancy analysis showed that the first two ordination axes together accounted for 81.32% of the total variation, which could be explained by the changes of soil total nitrogen, total phosphorus, total potassium, available nitrogen, available potassium, organic matter, pH, and chlorophyll content of the citrus. Overall, this study indicates the significant influence of landscape positions and types on soil properties and chlorophyll content of citrus. Further, this study provides a reference for the determination of targeted land management measures and orchard landscape design so that the soil quality and orchard yield can be improved, and finally, the sustainable development of agriculture and ecology can be realized.

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