Digital Heihe

Observational data of soil hydrological heterogeneity in the upper reaches of the Heihe River (2012-2014)

Soil bulk density, porosity, water content, water characteristic curve, saturated hydraulic conductivity, particle analysis, infiltration rate, and sampling point location information in the upper reaches of the Heihe River Basin.

1. The data is for 2014 supplementary sampling for 2012, using the ring knife to take the original soil;

2. The soil bulk density is the dry bulk density of the soil and is measured by the drying method. The original ring-shaped soil sample collected in the field was thermostated at 105 ° C for 24 hours in an oven, and the soil dry weight was divided by the soil volume (100 cubic centimeters) , unit: g/cm 3 .

3. Soil porosity is obtained according to the relationship between soil bulk density and soil porosity;

4. Soil infiltration analysis data set, the data is the field experimental measurement data from 2013 to 2014.

5. The infiltration data is measured by “MINI DISK PORTABLE TENSION INFILTROMETER”, and the approximate saturated hydraulic conductivity under a certain negative pressure is obtained.

6. Soil particle size data was measured at the Grain Granulation Laboratory of the Key Laboratory of the Ministry of Education of Lanzhou University. The measuring instrument is a Malvern laser particle size analyzer MS2000.

7. The saturated hydraulic conductivity is measured according to the enamel hair self-made instrument of Yi Yanli (2009). The Marioot bottle was used to maintain the head during the experiment; at the same time, the Ks measured at the time was converted to the Ks value at 10 °C for analysis and calculation.

8. Soil water content data is measured using ECH2O, including 5 layers of soil water content and soil temperature.

9. The water characteristic curve is measured by the centrifuge method: the undisturbed soil of the ring cutter collected in the field is placed in a centrifuge, and each of the speeds is measured at 0, 310, 980, 1700, 2190, 2770, 3100, 5370, 6930, 8200, 11600. The secondary rotor weight is obtained.

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eg: 2012 soil bulk density and porosity. xlsxYear + analysis dimension

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Related Literatures:

1. Li, J., Zhang, L., He, C., Zhao, C. (2018). A Comparison of Markov Chain Random Field and Ordinary Kriging Methods for Calculating Soil Texture in a Mountainous Watershed, Northwest China. Sustainability, 10(8), 2819.(View Details |Download )

2. Chen, Z. , Lanhui, Z. , Jinlin, L. , Jie, T. , Weizhen, W. , & Xin, J. , et al. (2014). Analysis of the relationships between the spatial variations of soil moisture and the environmental factors in the upstream of the heihe river watershed. Journal of Lanzhou University Natural Science, 50(3), 338-347.(View Details)

3. Jin, X., Zhang, L.h., Gu, J., Zhao, C., Tian, J., He, C.S. (2015). Modeling the impacts of spatial heterogeneity in soil hydraulic properties on hydrological process in the upper reach of the Heihe River in the Qilian Mountains, Northwest China. Hydrological Processes, 29(15), 3318-3327.(View Details |Download )

4. Zhang, L., He, C., & Zhang, M. (2017). Multi-Scale Evaluation of the SMAP Product Using Sparse In-Situ Network over a High Mountainous Watershed, Northwest China. Remote Sensing, 9(11), 1111.(View Details)

5. Tian, J., Zhang, B., He, C., Han, Z., Bogena, H.R., Huisman, J.A. (2019). Dynamic response patterns of profile soil moisture wetting events under different land covers in the Mountainous area of the Heihe River Watershed, Northwest China. Agricultural and Forest Meteorology, 271(15), 225-239.(View Details |Download )

6. Bai. Xiao, Zhang. Lanhui, Wang. Yibo, Tian. Jie, HE. Chansheng, & Liu. Guohua, (2017). Variations of soil moisture under different land use and land cover types in the qilian mountain,china. Research of Soil and Water Conservation.(View Details |Download )

7. Tian, J., Zhang, B., He, C., & Yang, L. (2017). Variability in Soil Hydraulic Conductivity and Soil Hydrological Response Under Different Land Covers in the Mountainous Area of the Heihe River Watershed, Northwest China. Land Degradation & Development, 28(4), 1437-1449.(View Details)

8. Zhang, L., He, C., Zhang, M., & Zhu, Y. (2019). Evaluation of the SMOS and SMAP soil moisture products under different vegetation types against two sparse in situ networks over arid mountainous watersheds, Northwest China. Science China Earth Sciences, 62(4), 703-718.(View Details)

Cite as:

He, C. (2019). Observational data of soil hydrological heterogeneity in the upper reaches of the Heihe River (2012-2014)2019. doi: 10.11888/Soil.tpdc.270111. (Download the reference： RIS | Bibtex )

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