Topographic differentiation simulation of crop yield and soil and water loss on the Loess Plateau

2009 ◽  
Vol 19 (3) ◽  
pp. 331-339 ◽  
Author(s):  
Yong Xu ◽  
Bo Yang ◽  
Guobin Liu ◽  
Puling Liu
Keyword(s):  
Loess Plateau ◽  
Crop Yield ◽  
Water Loss ◽  
The Loess Plateau ◽  
Soil And Water Loss ◽  
Soil And Water

scholarly journals Vulnerability Assessment of Soil and Water Loss in Loess Plateau and Its Impact on Farmers’ Soil and Water Conservation Adaptive Behavior

2018 ◽  
Vol 10 (12) ◽  
pp. 4773 ◽  
Author(s):  
Xiaohui Huang ◽  
Lili Wang ◽  
Qian Lu
Keyword(s):  
Soil Erosion ◽  
Loess Plateau ◽  
Water Loss ◽  
Water Conservation ◽  
Positive Impact ◽  
Soil And Water Conservation ◽  
The Loess Plateau ◽  
Soil And Water Loss ◽  
Conservation Technology ◽  
Soil And Water

Analyzing vulnerability and adaptation to soil and water loss is an important part of the study on the human–environment relationship in the Loess Plateau. It has also provided a new perspective for studying the farmers’ adoption behavior of soil and water conservation technology in the soil erosion area of the Loess Plateau. Based on the Turner vulnerability framework, this paper constructs a household-scale index system of soil and water loss vulnerability in the Loess Plateau and evaluates the soil and water loss vulnerability in the Loess Plateau using the field survey data of the Loess Plateau applied entropy method. Finally, we use the binary logistic model to estimate the impact mechanism of farmers’ soil erosion vulnerability on farmers’ adoption behavior of soil and water conservation technology. The main conclusions are as follows: (1) In the total sample, susceptibility > exposure > adaptability, whereas in the Shaanxi and Gansu subsample, susceptibility > adaptability > exposure. The Ningxia subsample was similar to the total sample. For each index, Ningxia > Gansu > Shaanxi; (2) The exposure and susceptibility of soil and water loss have a positive impact on farmers’ adoption behavior of soil and water conservation technology, and natural capital has a positive impact on farmers’ adoption behavior of soil and water conservation technology. Physical capital has a positive impact on farmers’ adoption behavior of biological measures. Financial capital has a negative impact on farmers’ adoption behavior of biological measures and farming measures. Social capital has a positive impact on farmers’ adoption behavior of engineering measures and biological measures; (3) Overall, the marginal effect of the adoption behavior of farmers’ soil and water conservation techniques, adaptability > susceptibility > exposure. Therefore, it is necessary to strengthen the monitoring of soil and water loss, encourage the government and farmers to respond in time, and reduce the losses caused by soil erosion. Enriching the capital endowment of farmers, breaking through the endowment restriction of farmers’ adoption of soil and water conservation technology.

Soil and water loss from the Loess Plateau in China

2000 ◽  
Vol 45 (1) ◽  
pp. 9-20 ◽  
Author(s):  
Hui Shi ◽  
Mingan Shao
Keyword(s):  
Loess Plateau ◽  
Water Loss ◽  
The Loess Plateau ◽  
Soil And Water Loss ◽  
Soil And Water

Impacts of terracing on hydrological processes: a case study in Wangmaogou watershed of the Loess Plateau

2020 ◽  
Author(s):  
Xiuxiu Chen ◽  
Qihua Ran ◽  
Yanyan Hong ◽  
Sheng Ye
Keyword(s):  
Loess Plateau ◽  
Water Loss ◽  
Water Conservation ◽  
Flow Direction ◽  
Soil And Water Conservation ◽  
Observation Data ◽  
Distributed Hydrological Model ◽  
The Loess Plateau ◽  
Rainfall Events ◽  
Soil And Water

<p>The Loess Plateau of China is known for its severe soil and water loss problems. Terracing is one of the most important soil and water conservation measures there. Our understanding of the effects of terraces on soil and water conservation and its mechanism is limited by observation data on runoff and soil erosion as well as the influences from local environmental characteristics. In this study, we applied a physically-based distributed hydrological model (Integrated Hydrology Model, InHM) to an experimental terrace in Wangmaogou watershed of the Loess Plateau, and validated it with the measured soil water content. Our results suggested that terrace construction can substantially reduce runoff by changing the flow direction, especially during heavy rainfall events. This reduction in runoff would be greatly attenuated when ridges are damaged due to lack of maintenance. Under the rainfall intensity of 120 mm/h, compared with hillslope, a well-maintained terrace could reduce runoff by 100%, while the terrace without ridges could only reduce 28% runoff. Besides, ridges not only prevented water from flowing out of platforms, but also helped maintain the risers from terrace failure by decreasing about 20% of the saturation rate at the risers. Our results also emphasized the importance of evaporation, which could make up to 15% of the total water loss even during the rainfall events. Given the effects of terraces on water conservation, it is essential for the land use management of the Loess Plateau to take into account of the terracing approach, as well as a good maintenance of ridges.</p>

scholarly journals Prevention of Soil and Water Loss by Vegetation Cover in Pasture of Loess Plateau in China.

1993 ◽  
Vol 38 (3) ◽  
pp. 230-232
Author(s):  
Nobumasa Ichizen ◽  
Li Li ◽  
Hidenori Takahashi ◽  
Satoshi Matsumoto ◽  
Tetsuo Takematsu
Keyword(s):  
Loess Plateau ◽  
Water Loss ◽  
Vegetation Cover ◽  
Soil And Water Loss ◽  
Soil And Water

scholarly journals Soil and Water Loss Rates in Oxisols Under No-tillage System in Western Paraná, Brazil

2018 ◽  
Vol 10 (10) ◽  
pp. 132
Author(s):  
Luana Salete Celante ◽  
Deonir Secco ◽  
Aracéli Ciotti de Marins ◽  
Daniela Trentin Nava ◽  
Flávio Gurgacz ◽  
...  
Keyword(s):  
Water Loss ◽  
Soil Loss ◽  
No Tillage ◽  
Linear Regression Models ◽  
Water Losses ◽  
Soil And Water Loss ◽  
Tillage System ◽  
Soil Losses ◽  
Soil And Water ◽  
Loss Rates

The objective of work was to quantify soil and water loss rates as a function of slope variation, correlating these rates with soybean yield. In addition to developing multiple linear regression models that associate water and soil loss rates in function of their physical attributes. The experiment was conducted in an Oxisols under a no-tillage system. The experiment was carried out in Cascavel, PR, Brazil. Four slopes (3.5%; 8.2%; 11.4% and 13.5%) were considered as treatments. The water and soil loss rates were monitored in the rainfall occurring during the crop development cycle. The water drained in each plot was collected in gutters made of polyvinyl chloride and stored in containers for the quantification of soil and water losses. The stepwise backward method was used to identify the variables that had a significant influence on water and soil losses. The unevenness of the terrain did not influence the soil and water loss rates. The maximum soil and water losses during the soybean cycle were, respectively, 0.01962 Mg ha-1 and 4.07 m3 ha-1. The maximum soil and water losses occurred when the precipitation volume was up to 82 mm. Soil and water losses showed a higher correlation with macroporosity and bulk density. Soybean grain yield showed a higher linear correlation with water, and soil loss and was higher at the slopes of 8.2% and 13.4%. The low water and soil losses demonstrate the soil capacity, managed under a no-tillage system, to minimize environmental impacts.

Soil and Water Conservation Society and the Construction of Ecological Civilization City

2014 ◽  
Vol 977 ◽  
pp. 290-294 ◽  
Author(s):  
Zhi Qiang Yu ◽  
Qiang Gao ◽  
Wen Feng Ding
Keyword(s):  
Soil Erosion ◽  
Social Construction ◽  
Water Loss ◽  
Water Conservation ◽  
Soil And Water Conservation ◽  
Ecological Civilization ◽  
Soil And Water Loss ◽  
The Social ◽  
The City ◽  
Soil And Water

In recent years , with the acceleration of the process of China's modernization cities , soil erosion and lead to many more serious environmental problems . This paper describes the harm to the social construction of ecological civilization city soil and water loss,analyzed the causes of soil erosion,and finally illustrates the importance of soil and water conservation of the city and puts forward some suggestions for the construction of soil and water conservation.

Predication of River Water Quality Based on Gray Dynamic Model Group in Wenchuan Earthquake Disaster Area

2013 ◽  
Vol 316-317 ◽  
pp. 599-605
Author(s):  
Feng Qian ◽  
Wei Lin ◽  
Bo Hu ◽  
Jing Jun Liu ◽  
Ming Biao Xiong
Keyword(s):  
Water Quality ◽  
River Water ◽  
Wenchuan Earthquake ◽  
Water Loss ◽  
River Water Quality ◽  
Total Hardness ◽  
Earthquake Disaster ◽  
Soil And Water Loss ◽  
Disaster Area ◽  
Soil And Water

“5.12 Wenchuan earthquake”triggered floods, landslide, collapse and secondary geological disaster, trigger a new soil and water loss, having the significant influence to the local river water quality.This article through the statistical analysis of minjiang river and jiangyou wenchuan, beichuan station 2006 ~ 2011 water conditions material, discussing the before and after the earthquake disaster areas of river water quality change characteristics. The results showed From ammonia nitrogen source analysis, urban sewage and industrial waste water, agricultural non-point source pollution and earthquake that triggered the new soil and water loss is the main pollution source. Based on the hydrological site total hardness concentration prediction, we can find wenchuan earthquake disaster area total hardness concentration significantly increase trend.

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