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Partition-coordinated control of soil and water loss for chestnut forests in the Yanshan Mountain Region, China

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International Journal of Sediment Research 2019年第1期34卷 58-64页

作者： Xinhui Ding Guangquan Liu Xiaoying Liu Yongsheng Xie Zhichun Yue China Institute of water Resources and Hydropower Research State Key Labof Water Recycle Modeling International Research and Training Center on Erosion and Sedimentation Institute of soil and water Conservation Chinese Academy of SciencesMinistry of Water Resources State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University

soil erosion from chestnut forests is one of the most important factors causing land degradation in the Yanshan Mountain Region. A 2-year field study was done to compare the effects on erosion of a control plot(CP), a repaired and maintained horizontal ditch built with an engineering baffle every 6 m(MP 1),and a repaired and maintained horizontal ditch built with an engineering baffle every 8 m(MP 2). The results showed that the slope runoff of chestnut forests was influenced by rainfall characteristic *** single rainfall characteristic factor showed dominance for hill slope runoff. The runoff reduction effect of the partition-coordinated erosion control measures(MP 1 and MP 2) was substantial for chestnut forests under high rainfall intensity conditions. However, the runoff reduction efficiency was higher under the conditions of heavy rainfall and low average rainfall intensity than for storms with higher intensity and lower total rainfall. The reduction effect of the partition-coordinated erosion control measures on the runoff and sediment yield of chestnut forest slopes was MP 2 > MP 1 > CP. The runoff reduction rate and erosion reduction rate of MP 2 reached 61.70% and 97.41%, respectively, and that for MP 1 was 54.15% and 85.31%, respectively. Therefore, after a comprehensive comparison, MP 2 was determined to be more effective for soil erosion control for a sloping chestnut forest.

关键词： Chestnut forest soil and water loss Erosion control Runoff reduction rate Erosion reduction rate

Study on soil and water loss Characteristic of the Railway Construction in Mountain Area

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地球科学进展 2004年第S1期19卷 232-237页

作者： BAI Ming-zhou~1, XU Zhao-yi~1, HUO Yu-hua~1, DONG Yong~2 (1. School of Civil Engineering and Architecture of Beifing JiaoTong University, Beijing 100044,China 2. Personnel Division of the First Railway Survey & Design Institute, Lanzhou 730000, China)

The factor of human project activity is often the immediate cause resulting in soil and water loss. The Baoji-Lanzhou second railway in construction is an example. The soil and water loss law caused by earth and stone mountain railway engineering construction in the northwestern China is studied systematically and that caused possibly by the road bed project, the road moat project, the field project, the tunnel project and the service road project in construction is probed. At the same time, the type, t...

关键词： Mountain railway soil and water loss Characteristic.

A policy and technical measures for controlling soil and water loss in the Loess Plateau of China

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Journal of Environmental Sciences 1990年第2期2卷 79-86页

作者： Wu Qinxiao and Li YinchuNorthwestern Institute of soil and water Conservation Academia sinica,Shaanxi,China

Loess Plateau is the most serious region of soil and water loss in China and the world. The sediment carried into the Yellow River amounts to 1.6 billion tons every year. This paper reviews the factors and reasons for erosion in this area, and puts forward a comprehensive controlling policy on the basis of the principles of ecology and practise of Chinese scientists for 40 years. In conformity with the policy, a number of technical measures for controlling soil and water loss are suggested.

关键词： Loess Plateau soil and water loss controlling policy technical measure.

Impact of slash disposal on soil and water loss and the growth of planted seedlings

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Journal of Forestry Research 2000年第3期11卷 207-209页

作者：赵秀海戚维忠魏嵩北华大学吉林哈尔滨第二苗圃黑龙江哈尔滨

The three methods of slash disposal in this experiment were no treatment, strip piling and burning. The results obtained from this study showed that the soil erosion, water and nutrient loss were higher in the logged areas by burning than in the logged areas by no treatment and strip piling. The soil and water loss was not serious when the slope degree of the logged area was less than 16o. The survival rate of planted seedlings was higher and the growth was better in the logged areas followed by burning than in the logged areas by no treatment and strip piling. Burning should not be used when the slope was more than 23o.

关键词： Slash disposal soil and water loss Seedling growth

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

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Journal of Geographical Sciences 2009年第3期19卷 331-339页

作者：徐勇杨波刘国彬刘普灵 Institute of Geographic Sciences and Natural Resources Research CAS Institute of soil and water Conservation CAS

De-farming slope farmland has been an effective measure in recent years for the improvement of the eco-environment and the mitigation of soil and water loss on the Loess Plateau. This paper, taking the Yangou Basin as a case study and using day-by-day mete- orological data of Yah＇an station in 2005, simulated and analyzed the quantitative relation between crop yield, soil and water loss and topographic condition with the aid of WIN-YIELD software. Results show that： 1） topographic gradient has important influence on crop yield. The bigger gradient is, the lower the crop yield. Yields of sorghum and corn decrease by 15.44% and 14.32% respectively at 25° in comparison to the case of 0°. In addition, yields of soya, bean and potato decrease slightly by 5.26%, 4.67% and 3.84%, respectively. The influences of topographic height and slope aspect on crop yield are slight. 2） Under the same topographic condition, different crops＇ runoff and soil loss show obvious disparity. Topographic gradient has important influence on soil and water loss. In general, the changing trend is that the soil and water loss aggregates with the increase of gradient, and the maximal amount occurs around 20°. The influence of topographic height is slight. Topographic aspect has a certain effect, and the fundamental characteristic is that values are higher at the aspect of south than north. 3） Topographic gradients of 5° and 15° are two important thresholds. The characteristic about soil and water loss with the variation of topographic gradients show that： the slope farmland with gradient less than 5° could remain unchanged, and the slope farmland more than 15° should be de-farmed as early as possible.

关键词： crop yield soil and water loss topographic differentiation Loess Plateau

Spatiotemporal features of soil and water loss in Three Gorges Reservoir Area of Chongqing

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Journal of Geographical Sciences 2009年第1期19卷 81-94页

作者：李月臣刘春霞袁兴中 College of Resources and Environmental Science Chongqing University College of Geographical Science Chongqing Normal University Key Laboratory of GIS Application Chongqing Municipal Education Commission

soil and water loss has been the most serious eco-environmental problem in the Three Gorges Reservoir Area of *** this paper the authors studied the spatiotemporal features of soil and water loss from 1999 to 2004 based on RS and GIS *** results showed that:(1) The soil and water loss area decreased from 1999 to 2004.(2) soil and water loss mainly exists in purple soil,yellow soil,limestone soil,paddy soil and yellow brown soil distributed areas.(3) The dry slope land and sparse woodland that are intensively influenced by human activities experienced most serious soil and water loss.(4) soil and water loss in the study area indicated an obvious vertical differentiation characteristic.(5) There is a significant correlation between soil and water loss and slope.(6) There is no obvious correlation between soil and water loss and aspect.(7) soil and water loss mainly exists in the values of R between 300 and 340 distribution *** very-high soil and water loss has obvious correlation with R.

关键词： soil and water loss Chongqing Three Gorges Reservoir Area

About soil Erosion and soil and water loss

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Forest Ecosystems 1994年第2期 46-51页

作者： Zhang Hongjiang COllege of soil and water Conservatin,Beijing Forestry University Beiji1ig 1 00083,P.R.China

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关键词： soil erosion soil and water loss

Risk Assessment and Change Monitoring of soil and water loss in Ruijin City Based on RS and GIS

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Meteorological and Environmental Research 2018年第4期9卷 89-93页

作者： Zhou Peng Wang Li Xie Wanting Lu Jiangyue Zhang Xiaoxu Xu Wei School of Civil Engineering and Architecture Wuhan Institute of Technology School of Statistics and Mathematics Zhongnan University of Economics and Law

The land use information extraction technology for the high-resolution remote sensing images of the Gaofen No. 1 satellite was construc-ted. According to the spectral, band, texture and shape attributes, land use types were divided, and the changing laws of land use types were ana- lyzed. Aftewards,according to the Table of Grading Standard of Sooil Erosion Intensity（SL190-96）,as well as vegetation coverage index NDVI slope, the risks of soil and water loss were assessed. Meanwhile, the level, scale, location and scope of changes in the risks of soil and water loss were monitored by using spatial visualization and spatial statistical techniques. The results showed that the area of areas without soil erosion and moderate soil erosion areas decreased obviously from 2015 to 2017, and the decreases were up to 22.929 3 and 13.626 3 km2 respectively. The ar-ea of mild soil erosion areas increased fast, and the increase reached 31.140 0 km2. The area of extremely strong soil erosion areas increased by 7.267 4 km2. In the city, moderate and strong soil erosion areas reduced, while extremely strong soil erosion patches increased fast, which was mainly related to road construction and construction and development of orchards. The extremely strong soil erosion areas were distributed in the shape of a banded loop, surrounded the suburbs of the city, and shrank towards the center of Ruijin City. The constructed technology to monitor the changes in land use and soil and water loss, as well as the changing laws of land use and soil and water loss provide the theoretical basis and plan-ning basis of soil and water conservation for urban planning departments and soil and water conservation departments.

关键词： Land use Change monitoring soil and water loss soil and water conservation

THE STUDY ON IMPACTS AND MEASURES OF URBAN soil and water loss ON water ENVIRONMENT

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THE STUDY ON IMPACTS AND MEASURES OF URBAN SOIL AND WATER LO...