Quantitative assessment of water conservation function and spatial pattern in Shiyang River basin

Yuchun, 王玉纯 Wang; Jun, 赵军 Zhao; Jiewen, 付杰文 Fu; Wei, 魏伟 Wei

doi:10.5846/stxb201707041204

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparing Figure 8 and Table 9, it can be seen that the water production coefficient (water productivity/precipitation) of five tributaries in the west, which were less affected by human activities, corresponded well with the DPI value; that is, the larger the water production coefficient, the smaller the DPI value. Secondly, the water conservation capacities of different land-use types are quite different [52], which affects the propagation of meteorological drought to hydrological drought. The average water conservations of woodland and grassland in natural vegetation are 90.38 mm and 41.72 mm, respectively, which are much larger than those of other land-use types, having a strong water storage capacity and strong transpiration, making it difficult for precipitation to form runoff; however, this has a certain regulation effect on hydrological drought caused by meteorological drought in years with less precipitation.…”

Section: Impact Of Land-use On Meteorological Drought Propagating To mentioning

confidence: 99%

Impact of Climate Change and Land-Use on the Propagation from Meteorological Drought to Hydrological Drought in the Eastern Qilian Mountains

Zhou

Wang³

et al. 2019

Water

View full text Add to dashboard Cite

As one of the most destructive and costly natural disasters, drought has far-reaching negative effects on agriculture, water resources, the environment, and human life. Scientific understanding of propagation from meteorological to hydrological drought is of great significance for accurate forecasting of hydrological drought and preventing and mitigating drought disasters. The objective of this study is to analyze the spatio-temporal variational characteristics of propagation from meteorological drought to hydrological drought and the associated driving mechanisms in the eastern Qilian Mountains using the standard precipitation index (SPI), standardized runoff index (SRI), and drought propagation intensity index (DPI). The results show that there has been meteorological humidification and hydrological aridification in the upper reaches of the Shiyang River Basin over the last 56 years; especially in the 2000s, the intensity of hydrological drought was the strongest and the intensity of meteorological drought was the weakest, indicating the propagation intensity of meteorological drought to hydrological drought was extremely strong during this period. The changes of meteorological and hydrological dry–wet are different, both on seasonal and monthly scales. The meteorological dry–wet is shown to have had a significant effect both on the current and month-ahead hydrological dry–wet, where the one-month lag effect was most obvious. The relationship between meteorological and hydrological droughts also vary in space: Hydrological aridification in the Huangyang River, and the rivers east of it, was greater than that in the western tributaries. The drought propagation intensities from west to east showed a decreasing trend, excluding the Huangyang River. Climate and land-use changes are the main factors affecting the propagation from meteorological drought to hydrological drought. When the natural vegetation area accounted for between 76.3–78%, the cultivated land area between 0.55–3.6% and the construction area between 0.08–0.22% were a peer-to-peer propagation process from meteorological drought to hydrological drought in the upper reaches of the Shiyang River.

show abstract

Section: Impact Of Land-use On Meteorological Drought Propagating To mentioning

confidence: 99%

Impact of Climate Change and Land-Use on the Propagation from Meteorological Drought to Hydrological Drought in the Eastern Qilian Mountains

Zhou

Wang³

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…They are viewed as a crucial link between natural ecosystems and socio-economic systems [2,3], which is crucial for improving human well-being. For example, water conservation services reflect the ability of ecosystems to intercept precipitation and regulate runoff [4]. Soil conservation helps to regulate the erosive effects of soil loss [5].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Land Use Intensity on Ecosystem Services: A Case Study in Harbin City, China

Qi,

Wang,

Shen

et al. 2023

Sustainability

View full text Add to dashboard Cite

Land use intensity (LUI) is an important indicator for assessing human activities, and quantitatively studying the impact of LUI on ESs can help to realize the scientific management of urban ecosystems as well as sustainable development. In this study, we quantified five important ecosystem service bundles in the study area with the aid of the R-language “kohonen” package and used bivariate spatial autocorrelation modeling to examine the effects of LUI on the ESs in Harbin City from 2000 to 2020. These ESs include food supply (FP), water conservation (WC), soil conservation (SC), carbon storage (CS), water purification (WP), and habitat quality (HQ). The results show the following: (1) The LUI in Harbin City had a trend from 2000 to 2020 of “decreasing and then growing”, with a spatial distribution pattern of “high in the west and low in the east.” (2) Except for FP, all other ESs exhibit a similar spatial pattern of “west-low-east-high”; WC and WP exhibit a trend of continuous increase, SC exhibits a trend of decreasing and then increasing, and CS and HQ are generally more stable, with less fluctuation. The built-up area is situated in the high-value area of LUI, and the area exhibits a significant expansion trend. (3) Ecological conservation bundles, FP–WP synergistic bundles, ecological transition bundles, CS–WP–HQ synergistic bundles, and FP bundles are the five ecosystem service bundles that were discovered in Harbin. (4) From 2000 to 2020, there is a predominately “low LUI-high ESs” and “high LUI-low ESs” aggregation type, with a substantial positive correlation between LUI and FP and a significant negative correlation between LUI and other ESs. Harbin City should strengthen the management of ESs in the western part of the city and, at the same time, maintain the favorable ecological conditions in the ecological barriers of Zhangguangcai Range and Xiaoxing’an Mountains.

show abstract

Evaluation and analysis of water conservation function of ecosystem in Shaanxi Province in China based on “Grain for Green” Projects

Wang

Gong

2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

Quantitative assessment of water conservation function and spatial pattern in Shiyang River basin

Cited by 3 publications

References 0 publications

Impact of Climate Change and Land-Use on the Propagation from Meteorological Drought to Hydrological Drought in the Eastern Qilian Mountains

Impact of Climate Change and Land-Use on the Propagation from Meteorological Drought to Hydrological Drought in the Eastern Qilian Mountains

Impacts of Land Use Intensity on Ecosystem Services: A Case Study in Harbin City, China

Evaluation and analysis of water conservation function of ecosystem in Shaanxi Province in China based on “Grain for Green” Projects

Contact Info

Product

Resources

About