Effects of land use types on deep soil water content in the loess hilly area of the north Shaanxi Province, China

doi:10.13287/j.1001-9332.201703.005

Abstract

Abstract: This study explored the differences of soil water content at 0-20 m soil depth at three locations, including economical plantation in Mizhi, reforestation area in Shenmu, and wind break and sand fixation forest district of Yuyang, and for clarifying the impacts of different land use types on deep soil water distribution and storage characterization, as well as its eco-environmental effect on the loess hilly area. The results showed that in the soil profile of 0-20 m, land use patterns had a significant impact on soil moisture distribution. There were significant differences of soil water sto-rage for the economical plantation, pruning Ziziphus jujuba plantation ＞ Z. jujuba plantation with 587.9 mm difference. There was no significant difference in soil water storage between Caragana korshinskii plantation and degraded artificial vegetation or between pine forests and natural grass field, degraded artificial grassland ＞ C. korshinskii plantation with 98.8 mm difference at Shenmu, and natural grassland ＞ Pinus sylvestris var. mongolica plantation with 7.5 mm difference at Yuyang. The pruning Z. jujuba tree reduced soil water consumption and was beneficial to sustainable use of soil water due to the decreased crown width and thus reduced transpiration. There were no obvious differences of soil water content between C. korshinskii plantation and degraded artificial grassland due to the historical alfalfa planting which was characterized by high water consumption due to its deep root distribution and large biomass. In contrast, P. sylvestris var. mongolica plantation and na-tural grassland had similar and low averaged soil water contents with 3.4% and 3.6%, respectively, mainly due to the sandy soil texture and weak soil water holding capacity. In addition, with increa-sing soil depth, soil water content increased in this area, indicating the effect of plants on water moisture of deep soil was very limited. Except for the underlying control of soil texture on soil water content in the soil profile, different vegetation played a key role in the dynamics of soil water content due to the difference of root zones. It was very important to choose the suitable type of vegetation regarding the protection and sustainable use of deep soil water.

LAN Zhi-long, PAN Xiao-lian, ZHAO Ying, SI Bing-cheng, WANG You-ke, JIAO Rui, ZHANG Jian-guo. Effects of land use types on deep soil water content in the loess hilly area of the north Shaanxi Province, China[J]. Chinese Journal of Applied Ecology, 2017, 28(3): 847-855.

References

[1] Li Y-S (李玉山), Han S-F (韩仕峰), Wang Z-H (汪正华). Soil water properties and its zonation in the Loe-ss Plateau. Menoir of NISWC, Chinese Academy of Sciences (中国科学院西北水土保持研究所集刊), 1985(2): 1-17 (in Chinese)
[2] Shi H, Shao MA. Soil and water loss from the Loess Plateau in China. Journal of Arid Environments, 2000, 45: 9-20
[3] Li H-C (李虹辰), Zhao X-N (赵西宁), Gao X-D (高晓东), et al. Effects of scale-like pit and mulching measures on soil moisture of dryland jujube orchard in North Shaanxi Province, China. Chinese Journal of Applied Ecology (应用生态学报), 2014, 25(8): 2297-2303 (in Chinese)
[4] Wang X (汪星), Zhou Y-H (周玉红), Wang Y-K (汪有科), et al. Soil water characteristic of a dense jujube plantation in the semi-arid hilly regions of the Loess Plateau in China. Journal of Hydraulic Engineering (水利学报), 2015, 46(3): 263-270 (in Chinese)
[5] Wei X-G (魏新光), Nie Z-Y (聂真义), Liu S-Y (刘守阳), et al. Soil moisture characteristics and its influence on jujube tree transpiration in loess hilly region. Transactions of the Chinese Society for Agricultural Machinery (农业机械学报), 2015, 46(6): 130-140 (in Chinese)
[6] Wang X, Zhu DL, Wang YK, et al. Soil water and root distribution under jujube plantations in the semiarid Loess Plateau region, China. Plant Growth Regulation, 2015, 77: 21-31
[7] Wang YQ, Shao MA, Liu ZP, et al. Characteristics of dried soil layers under apple orchards of different ages and their applications in soil water managements on the Loess Plateau of China. Pedosphere, 2015, 25: 546-554
[8] Hu W (胡伟), Shao M-A (邵明安), Wang Q-J (王全九). Scale-dependency of spatial variability of soil moisture on a degraded slope-land on the Loess Pla-teau. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 2005, 21(8): 11-16 (in Chinese)
[9] Yang W-Z (杨文治). Soil water resources and affores-tation in the Loess Plateau. Journal of Natural Resources (自然资源学报), 2001, 16(5): 433-438 (in Chinese)
[10] Hu W (胡伟), Shao M-A (邵明安), Wang Q-J (王全九). Study on spatial variability of soil moisture on the recultivated slope-land on the Loess Plateau. Advances in Water Science (水科学进展), 2006, 17(1): 74-81 (in Chinese)
[11] Li X-Y (李小英), Duan Z-H (段争虎), Chen X-H (陈小红), et al. Distribution of soil moisture under different planted shrubs on the west Loess Plateau. Arid Zone Research (干旱区研究), 2014, 31(1): 38-43 (in Chinese)
[12] Mo B-R (莫保儒), Cai G-J (蔡国军), Yang L (杨磊), et al. Soil water use and balance characteristics in mature forest land profile of Caragana korshinskii in semiarid loess area. Acta Ecologica Sinica (生态学报), 2013, 33(13): 4011-4020 (in Chinese)
[13] Wang YQ, Hu W, Zhu YJ, et al. Vertical distribution and temporal stability of soil water in 21 m profiles under different land uses on the Loess Plateau in China. Journal of Hydrology, 2015, 527: 543-554
[14] Wang Y-P (王延平), Han M-Y (韩明玉), Zhang L-S (张林森), et al. Spatial characteristics of soil moisture of apple orchards in the Loess Plateau of Shaanxi Pro-vince. Scientia Silvace Sincae (林业科学), 2013, 49(7): 16-25 (in Chinese)
[15] Hu S-L (胡守林), Jia Z-K (贾志宽), Wan S-M (万素梅). Soil moisture consumption and ecological effects in alfalfa grasslands in Longdong area of Loess Plateau. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 2009, 25(8): 48-53 (in Chinese)
[16] Wang M-Y (王美艳), Li J (李军), Sun J (孙剑), et al. Soil desiccation characteristics of alfalfa grasslands and soil water restoration effects in alfalfa-grain crop rotations on the semi-arid areas of the Loess Plateau. Acta Ecologica Sinica (生态学报), 2009, 29(8): 4526-4534 (in Chinese)
[17] Sun J (孙剑), Li J (李军), Wang M-Y (王美艳), et al. Effects of alfalfa-grain rotation on soil moisture restoration in semi-arid and drought-inclined areas of the Loess Plateau. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 2009, 25(6): 33-39 (in Chinese)
[18] Luo Z-Z (罗珠珠), Li L-L (李玲玲), Niu Y-N (牛伊宁), et al. Soil dryness characteristics of alfalfa cropland and optimal growth years of alfalfa on the Loess Pla-teau of central Gansu, China. Chinese Journal of Applied Ecology (应用生态学报), 2015, 26(10): 3059-3065 (in Chinese)
[19] Wang Y-Q (王幼奇), Fan J (樊军), Shao M-A (邵明安), et al. Evapotranspiration of three types of plants in water-wind erosion crisscross regions in the Loess Plateau. Acta Ecologica Sinica (生态学报), 2009, 29(10): 5386-5394 (in Chinese)
[20] Li J (李军), Wang X-C (王学春), Shao M-A (邵明安), et al. Simulation of water 1imiting biomass productivity of Chinese pine plantations and the soil desiccation effect in 3 sites with different annual precipitation on loess plateau. Scinentia Silvae Sincae (林业科学), 2010, 46(11): 25-35 (in Chinese)
[21] Mu X-M (穆兴民), Xu W-X (徐学选), Wang W-L (王文龙), et al. Impact of artificial forest on soil moisture of the deep soil layer on Loess Plateau. Acta Pedologica Sinica (土壤学报), 2003, 40(2): 210-217 (in Chinese)
[22] Cao Y (曹裕), Li J (李军), Zhang S-H (张社红), et al. Characteristics of deep soil desiccation of apple orchards in different weather and landform zones on the Loess Plateau in China. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 2012, 28(15): 72-79 (in Chinese)
[23] Zhao G (赵刚), Fan T-L (樊廷录), Li S-Z (李尚中), et al. Soil moisture dynamics of apple orchard in Loess Plateau dryland. Chinese Journal of Applied Ecology (应用生态学报), 2015, 26(4): 1199-1204 (in Chinese)
[24] Yang W-Z (杨文治), Shao M-A (邵明安). Soil Water Research on the Loess Plateau. Beijing: Science Press, 2000 (in Chinese)
[25] Lv G (吕刚), Wu X-Y (吴祥云). Review on inf-luential of soil infiltration characteristics. Chinese Agricultural Science Bulletin (中国农学通报), 2008, 24(7): 494-499 (in Chinese)
[26] Wang X-X (王新星), Zhao G-P (赵国平), Shi S-Q (史社强), et al. Distribution characteristics of Pinus sylvestris var. mongolica fine roots in Yulin City, Shaanxi Province. Journal of Northeast Forestry University (东北林业大学学报), 2014, 42(10): 16-19 (in Chinese)
[27] Huo Z (霍竹), Shao M-A (邵明安). Soil water distribution of the shrub land at the gully bank in the wind-water erosion crisscross region of Loess Plateau in China. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 2005, 21(6): 45-49 (in Chinese)
[28] Fan J (樊军), Hao M-D (郝明德), Shao M-A (邵明安). Soil desiccation and nitrogen consumption of artificial meadow in the Loess Plateau. Journal of Natural Resources (自然资源学报), 2004, 19(2): 201-206 (in Chinese)
[29] Luo Z-Z (罗珠珠), Niu Y-N (牛伊宁), Li L-L (李玲玲). Soil moisture and alfalfa productivity response from different years of growth on the Loess Plateau of central Gansu. Acta Paraculturae Sinica (草业学报), 2015, 24(1): 31-38 (in Chinese)
[30] Ma LH, Wu PT, Wang X. Root distribution chronosequence of a dense dwarfed jujube plantation in the semi-arid hilly region of the Chinese Loess Plateau. Journal of Forest Research, 2014, 19: 62-69
[31] Wang L (王力), Shao M-A (邵明安), Wang Q-J (王全九), et al. Review of research of on soil desiccation in the Loess Plateau. Transaction of the Chinese Society of Agricultural Engineering (农业工程学报), 2004, 2(5): 27-31 (in Chinese)