Influence of Horqin Sandy Land Plant Sand Barrier on Soil Moisture

2010 ◽  
Vol 113-116 ◽  
pp. 1110-1114
Author(s):  
Lin Meng ◽  
Ying Xin ◽  
Yu Sen Zhao
Keyword(s):  
Soil Moisture ◽  
Dynamic Condition ◽  
Soil Layer ◽  
Land Plant ◽  
Horqin Sandy Land ◽  
Sandy Land ◽  
Monthly Average ◽  
Hedysarum Laeve ◽  
Change Trend ◽  
Monthly Change

In this paper, the shrub windbreak and sand-fixing sand barrier of Bairin Youqi in Chifeng in the east of Horqin Sandy Land is the research object, three different types of plant barriers including hedysarum laeve grid sand barrier, Salix gordejevii and hedysarum laeve grid sand barrier and caragana and hedysarum laeve patch sand barrier are respectively selected, and the shifting sandy land is selected as a contrast at the same time to study its influence on the soil moisture of sandy land in the method of field locating observation method from early May to late September of 2005. Except for the contrasted sandy land, the monthly average soil moisture in each layer of plant sand barrier presents a fluctuation trend. The monthly change trend of soil moisture in the 10~20cm soil layer of hedysarum laeve grid sand barrier is the same as that of caragana and hedysarum laeve patch sand barrier. The soil moisture in 20~40cm soil layer of the three plant barriers in every month shows a big change, with the fluctuation range larger than the contrasted sandy land. The 20~60 cm soil layer is the area where the roots of sand barrier plant are centralized, therefore, the soil moisture in the root intensive area is reduced. The monthly change trend of soil moisture in 60~80cm soil layer of hedysarum laeve grid sand barrier, caragana and hedysarum laeve patch sand barrier is the same as that of the contrasted sandy land. The monthly change trend of soil moisture in the 80~100 soil layers is basically same. The minimum value of monthly average soil moisture of all kinds of plant sand barriers appears when the contrasted sandy land is 1.40%, and the maximum value appears when caragana and hedysarum laeve patch sand barrier is 4.79%, 3.4 times higher than the contrasted sandy land. The annual dynamic condition of soil moisture can be divided into: consumption period from April to June, supply period from July to August, stable period in September, which shows that the plant sand barrier is favorable for increasing the soil moisture.

scholarly journals Spatio-temporal variations in soil hydrology of a typical semiarid sand-meadow-desert landscape

2011 ◽  
Vol 8 (1) ◽  
pp. 1895-1928 ◽  
Author(s):  
L. Duan ◽  
T. Liu ◽  
X. Wang ◽  
G. Wang ◽  
L. Ma ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Land Cover ◽  
Physicochemical Properties ◽  
Fine Particles ◽  
Temporal Variations ◽  
P Value ◽  
Horqin Sandy Land ◽  
Sandy Land ◽  
Spatio Temporal ◽  
Semiarid Land

Abstract. A good understanding of the interrelations between land cover alteration and changes in hydrologic conditions (e.g., soil moisture) as well as soil physicochemical properties (e.g., fine particles and nutrients) is crucial for maintaining the fragile hydrologic and environmental conditions of semiarid land, such as the Horqin Sandy Land in China, but is lacking in existing literature. The objectives of this study were to examine: (1) spatio-temporal variations of soil moisture and physicochemical properties in semiarid land; and (2) how those variations are influenced by land cover alteration. Using the data collected in a 9.71 km2 well-instrumented area of the Horqin Sandy Land, this study examined by visual examination and statistical analyses the spatio-temporal variations of soil moisture and physicochemical properties. The results indicated that for the study area, the soil moisture and physicochemical properties were dependent on local topography, soil texture, vegetation density, and human activity. Long-term reclamation for agriculture was found to reduce soil moisture by over 23% and significantly (p-value < 0.05) lower the contents of soil organic matter, fine particles, and nutrients.

scholarly journals New measures of deep soil water recharge during vegetation restoration process in semi-arid regions of northern China

2020 ◽  
Author(s):  
Yiben Cheng ◽  
Hongbin Zhan ◽  
Wenbin Yang ◽  
Qunou Jiang ◽  
Yunqi Wang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Sandy Soil ◽  
Arid Regions ◽  
Soil Layer ◽  
Soil Particle ◽  
Sandy Land ◽  
Deep Soil ◽  
Artemisia Sphaerocephala ◽  
The Impact ◽  
Semi Arid

Abstract. Desertification in semi-arid regions is currently a global environmental and societal problem. This research attempts to understand whether a 40-year-old rain-feed Artamisia sphaerocephala Krasch sand-fixing land in Three North Shelterbelt Program (3NSP) of China can be developed sustainably or not, using a newly designed lysimeter to monitor the precipitation-induced deep soil recharge (DSR) at 220 cm depth. Evapotranspiration is calculated through a water balance equation when precipitation and soil moisture data are collected. Comparison of soil particle sizes and soil moisture distributions in artificial sand-fixing land and neighboring bare land is made to assess the impact of sand-fixing reforestation. Results show that such a sand-fixing reforestation results in a root system being mainly developed in the horizontal direction and the changed soil particle distribution. Specifically, the sandy soil with 50.53 % medium sand has been transformed into a sandy soil with 68.53 % fine sand. Within the Artamisia sphaerocephala Krasch sand-fixing experimental area, the DSR values in bare sand plot and Artemisia sphaerocephala Krasch plot are respectively 283.6 mm and 90.6 mm in wet years, reflecting a difference of more than three times. The deep soil layer moisture in semi-arid sandy land is largely replenished by precipitation-induced infiltration. The DSR values of bare sandy land plot and Artemisia sphaerocephala Krasch plot are respectively 51.6 mm and 2 mm in dry years, a difference of more than 25 times. The proportions of DSR reduced by Artemisia sphaerocephala Krasch is 68.06 % and 96.12 % in wet and dry years, respectively. This research shows that Artamisia sphaerocephala Krasch in semi-arid region can continue to grow and has the capacity of fixing sand. It consumes a large amount of precipitated water, and reduces the amount of DSR considerably.

scholarly journals New measures of deep soil water recharge during the vegetation restoration process in semi-arid regions of northern China

2020 ◽  
Vol 24 (12) ◽  
pp. 5875-5890
Author(s):  
Yiben Cheng ◽  
Xinle Li ◽  
Yunqi Wang ◽  
Hongbin Zhan ◽  
Wenbin Yang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Sandy Soil ◽  
Arid Regions ◽  
Soil Layer ◽  
Soil Particle ◽  
Sandy Land ◽  
Deep Soil ◽  
Artemisia Sphaerocephala ◽  
The Impact ◽  
Semi Arid

Abstract. Desertification in semi-arid regions is currently a global environmental and societal problem. This research attempts to understand whether a 40-year-old rain-fed Artemisia sphaerocephala Krasch sand-fixing land as part of the Three North Shelterbelt Program (3NSP) of China can be developed sustainably or not using a newly designed lysimeter to monitor the precipitation-induced deep soil recharge (DSR) at 220 cm of depth. Evapotranspiration is calculated through a water balance equation when precipitation and soil moisture data are collected. A comparison of soil particle sizes and soil moisture distributions in artificial sand-fixing land and neighboring bare land is made to assess the impact of sand-fixing reforestation. Results show that such a sand-fixing reforestation results in a root system being mainly developed in the horizontal direction and a changed soil particle distribution. Specifically, the sandy soil with 50.53 % medium sand has been transformed into a sandy soil with 68.53 % fine sand. Within the Artemisia sphaerocephala Krasch sand-fixing experimental area, the DSR values in the bare sand plot and Artemisia sphaerocephala Krasch plot are respectively 283.6 and 90.6 mm in wet years, reflecting a difference of more than 3 times. The deep soil layer moisture in semi-arid sandy land is largely replenished by precipitation-induced infiltration. The DSR values of the bare sandy land plot and Artemisia sphaerocephala Krasch plot are respectively 51.6 and 2 mm in dry years, a difference of more than 25 times. The proportions of DSR reduced by Artemisia sphaerocephala Krasch are 68.06 % and 96.12 % in wet and dry years, respectively. This research shows that Artemisia sphaerocephala Krasch in semi-arid regions can continue to grow and has the capacity to fix sand. It consumes a large amount of precipitated water and reduces the amount of DSR considerably.

scholarly journals Characteristics of soil moisture under different vegetation coverage in Horqin Sandy Land, northern China

PLoS ONE ◽  
2018 ◽  
Vol 13 (6) ◽  
pp. e0198805 ◽  
Author(s):  
Tingting Yang ◽  
Musa Ala ◽  
Yushu Zhang ◽  
Jiabing Wu ◽  
Anzhi Wang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Northern China ◽  
Vegetation Coverage ◽  
Horqin Sandy Land ◽  
Sandy Land

Effects of soil moisture on dust emission from 2011 to 2015 observed over the Horqin Sandy Land area, China

2018 ◽  
Vol 32 ◽  
pp. 14-23 ◽  
Author(s):  
Tingting Ju ◽  
Xiaolan Li ◽  
Hongsheng Zhang ◽  
Xuhui Cai ◽  
Yu Song
Keyword(s):  
Soil Moisture ◽  
Dust Emission ◽  
Horqin Sandy Land ◽  
Sandy Land ◽  
Land Area ◽  
Horqin Sandy Land Area

scholarly journals Application of Time Series Analysis in Soil Moisture of Fixed Dune on Korqin Sandy Land, Northern China

2020 ◽  
Keyword(s):  
Time Series ◽  
Soil Moisture ◽  
Time Series Analysis ◽  
Soil Depth ◽  
Time Lag ◽  
Soil Layer ◽  
Growing Season ◽  
Northern China ◽  
Sandy Land ◽  
Series Analysis

<p>Time series analysis is a very effective method to analyze the dynamic characteristics of soil moisture at long-term scale. In this study, we have used the time series to analyze the relationship between precipitation and soil moisture on fixed dune at different soil depths (from 0 to 120 cm) during the growing season (from May to September) of 2006-2010 in Korqin Sandy Land, northern China. The results indicate that: (1) The precipitation is a relatively independent time series and has no obvious autocorrelation. Precipitation in an earlier stage has no obvious effect on the later stage in the growing season. (2) Soil moisture in different soil layers has higher autocorrelation; and the autocorrelation of soil moisture in each soil layer is significantly weakened with the increase in time lag interval. (3) The correlation coefficient between soil moisture and precipitation in each soil layer is higher at the time lag interval of k = 0; with the increase in soil depth, the correlation is gradually weakened. (4) The maximum correlation coefficients of soil moisture series and precipitation series in different soil depths were obtained at the time lag interval of k = 0.</p>

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