Research Article | | Peer-Reviewed

Study on Response of Evapotranspiration Consumption of Forest and Grass Vegetation to Natural Precipitation in Northwest Loess Plateau

Received: 22 March 2024    Accepted: 6 May 2024    Published: 10 May 2024
Views:       Downloads:
Abstract

In this paper, the evapotranspiration balance of forest and grass vegetation in the Loess Plateau of Northwest China in different regions was analyzed using 6 indexes in 3 categoriess, namely, evapotranspiration ratio (Ea/Q, Ep/Q), evapotranspiration difference (Q-EA, Q-EP), and actual (potential) water supply ratio (1-Ea/Q, 1-Ep/Q). It is used to objectively reflect the suitability of different types of vegetation in different periods of growth based on precipitation. In another words this suitability reflects the support capacity of natural rainfall to vegetation consumed water through evapotranspiration under the specific climate environment of the Loess Plateau. The results show that: (1) The actual evapotranspiration water consumption of all types of vegetation in this region increased significantly in the first three months of the growth period from April to June, resulting in a relatively high moisture dryness index of vegetation with an average k value of 0.44. The main reason was that natural precipitation was less at this stage, and the gradually rising temperature strengthened the transpiration of most vegetation. The forest was the most stressed. At the end of May and the beginning of June, with the increase of natural precipitation, the average k value of all types of vegetation began to decline. From July to September, due to the flood season in this region, the precipitation increased sharply, and the moisture dryness index was in the lowest range of the whole growth period, and the average k value varied between 0.26 and 0.30 with the lowest value was 0.26 at the end of August and the beginning of September. (2) It is obvious that the water stress of forest is higher than that of shrub and grassland. It is fully indicated that the difference of transpiration caused by the difference of vegetation types leads to the difference of actual evapotranspiration water consumption of different vegetation types.

Published in Journal of Energy and Natural Resources (Volume 13, Issue 1)
DOI 10.11648/j.jenr.20241301.13
Page(s) 27-49
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Forest and Grass Vegetation, Precipitation, Evapotranspiration, Response, Loess Plateau

References
[1] Shao R, Regional evapotranspiration water consumption rule and ecohydrological effect of large-scale vegetation restoration in the Loess Plateau [D]. Lanzhou University, 2020.
[2] GE Peng, ZHOU Mei, Bao Hu, ZHAO Pengwu, Wang Zixuan, FENG Qianqian, Shi Liang, Wang Ding, Shu Yang, ZHANG Bo. Research progress of methods for determining evapotranspiration water consumption of forest vegetation [J]. Inner Mongolia Forestry Survey and Design, 2017, 40(03): 101-104.
[3] Yang X L. Characteristics of precipitation redistribution and evapotranspiration water consumption in typical shrublands in northern Loess Plateau [D]. Northwest A & F University, 2016.
[4] Rich and gorgeous, Xia Jun, Zhan Che Sheng. Research status and prospect of water demand for ecological environment [J]. Progress in Geography, 2003, (06): 591-598.
[5] WANG Yanhui, Xiong Wei, YU Pengtao, Shen Zhenxi, Guo Mingchun, Guan Wei, Ma Changming, Ye Bing, GUO Hao. Study on evapotranspiration water consumption of forest vegetation in arid and water-scarce areas [J]. Chinese Soil and Water Conservation Department.
[6] Zhou Z P. Study on actual evapotranspiration in Loess Plateau based on ground observation and remote sensing inversion [D]. University of Chinese Academy of Sciences (Ministry of Education, Chinese Academy of Sciences) Soil and Water Conservation and Ecological Environment.
[7] MIN Qingwen, He Yongtao, Li Wenhua, Li Guicai. Estimation of forest ecological water requirement based on the principles of agricultural meteorology: A case study of Jinghe River Basin [J]. Acta Ecologica Sinica, 2004(10): 2130-2135.
[8] Min Q W, Geng Y H, Estimation and analysis of ecological water requirement of grassland in Jinghe River Basin [J]. Resources Science, 2005, 27(04): 14-17.
[9] Zhu Delan, Yang Tao, Wang Dexiang, Lin Yuyang, Qian Hongge, Zhou Jinxing. Study on soil water dynamics and evapotranspiration water consumption of three different vegetation species in Loess hilly and gully region [J]. Soil and water conservation.
[10] LIU Jian-guo, Chai Hong-Min, Li Bao-ping. Estimation of evapotranspiration of forest and grass in the loess hilly region of Western Henan Province [J]. Journal of Irrigation and Drainage, 2012, 31(03): 99-102+138.
[11] Si Jianhua, Feng Qi, Zhang Xiaoyou, Zhang Yanwu, Su Yonghong. Advances in methods for measuring evapotranspiration water consumption of plants [J]. Advances in Water Science, 2005(03): 450-459 Science, 2006(04): 19-25+32.
[12] Yu Hongbo, Yang Jie, Song Bingyu. Study on scale transformation model for estimating plant transpiration and vegetation evapotranspiration in Loess hilly and gully region [J]. Research of Soil and Water Conservation, 2010, 17(06): 90-94+0+2.
[13] Jin Xinhong. Evapotranspiration water consumption model of main afforestation tree species in the Loess Plateau [D]. Beijing Forestry University, 2007.
[14] Zhang Xiao-Lin, Xiong Li-Hua, Lin Lin, et al. Application of five potential evapotranspiration formulas in the Han River Basin [J]. Arid Land Geography, 2012, 35(02): 229-235.
[15] Pan D, Bi H X, Tsering Q Xi, et al. Study on the relationship between water consumption of typical forest vegetation and environmental factors in loess region of Western Shanxi Province [J]. Journal of Beijing Forestry University, 2013, 35(04): 16-18.
[16] Zhao Y L, Huang W J, Cao M, Qi W, Li J S. Potential evapotranspiration of vegetation in the Loess Plateau and its influencing factors from 1961 to 2019 [J]. Research in Environmental Sciences, 2019, 34(09): 2208-2219.
[17] Wang Fu, Sha Xiao Yan, He Qian, Zhao Qiang, Han Fen, Zhang He. Evapotranspiration Characteristics of Forest and Grass Vegetation and Its Response to Environmental Factors on the Loess Plateau [J]. Science Discovery, 2023; 11(6): 193-208.
Cite This Article
  • APA Style

    Fu, W., Yan, S. X., Qian, H., Qiang, Z., He, Z., et al. (2024). Study on Response of Evapotranspiration Consumption of Forest and Grass Vegetation to Natural Precipitation in Northwest Loess Plateau. Journal of Energy and Natural Resources, 13(1), 27-49. https://doi.org/10.11648/j.jenr.20241301.13

    Copy | Download

    ACS Style

    Fu, W.; Yan, S. X.; Qian, H.; Qiang, Z.; He, Z., et al. Study on Response of Evapotranspiration Consumption of Forest and Grass Vegetation to Natural Precipitation in Northwest Loess Plateau. J. Energy Nat. Resour. 2024, 13(1), 27-49. doi: 10.11648/j.jenr.20241301.13

    Copy | Download

    AMA Style

    Fu W, Yan SX, Qian H, Qiang Z, He Z, et al. Study on Response of Evapotranspiration Consumption of Forest and Grass Vegetation to Natural Precipitation in Northwest Loess Plateau. J Energy Nat Resour. 2024;13(1):27-49. doi: 10.11648/j.jenr.20241301.13

    Copy | Download

  • @article{10.11648/j.jenr.20241301.13,
      author = {Wang Fu and Sha Xiao Yan and He Qian and Zhao Qiang and Zhang He and Han Fen},
      title = {Study on Response of Evapotranspiration Consumption of Forest and Grass Vegetation to Natural Precipitation in Northwest Loess Plateau
    },
      journal = {Journal of Energy and Natural Resources},
      volume = {13},
      number = {1},
      pages = {27-49},
      doi = {10.11648/j.jenr.20241301.13},
      url = {https://doi.org/10.11648/j.jenr.20241301.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20241301.13},
      abstract = {In this paper, the evapotranspiration balance of forest and grass vegetation in the Loess Plateau of Northwest China in different regions was analyzed using 6 indexes in 3 categoriess, namely, evapotranspiration ratio (Ea/Q, Ep/Q), evapotranspiration difference (Q-EA, Q-EP), and actual (potential) water supply ratio (1-Ea/Q, 1-Ep/Q). It is used to objectively reflect the suitability of different types of vegetation in different periods of growth based on precipitation. In another words this suitability reflects the support capacity of natural rainfall to vegetation consumed water through evapotranspiration under the specific climate environment of the Loess Plateau. The results show that: (1) The actual evapotranspiration water consumption of all types of vegetation in this region increased significantly in the first three months of the growth period from April to June, resulting in a relatively high moisture dryness index of vegetation with an average k value of 0.44. The main reason was that natural precipitation was less at this stage, and the gradually rising temperature strengthened the transpiration of most vegetation. The forest was the most stressed. At the end of May and the beginning of June, with the increase of natural precipitation, the average k value of all types of vegetation began to decline. From July to September, due to the flood season in this region, the precipitation increased sharply, and the moisture dryness index was in the lowest range of the whole growth period, and the average k value varied between 0.26 and 0.30 with the lowest value was 0.26 at the end of August and the beginning of September. (2) It is obvious that the water stress of forest is higher than that of shrub and grassland. It is fully indicated that the difference of transpiration caused by the difference of vegetation types leads to the difference of actual evapotranspiration water consumption of different vegetation types.
    },
     year = {2024}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Study on Response of Evapotranspiration Consumption of Forest and Grass Vegetation to Natural Precipitation in Northwest Loess Plateau
    
    AU  - Wang Fu
    AU  - Sha Xiao Yan
    AU  - He Qian
    AU  - Zhao Qiang
    AU  - Zhang He
    AU  - Han Fen
    Y1  - 2024/05/10
    PY  - 2024
    N1  - https://doi.org/10.11648/j.jenr.20241301.13
    DO  - 10.11648/j.jenr.20241301.13
    T2  - Journal of Energy and Natural Resources
    JF  - Journal of Energy and Natural Resources
    JO  - Journal of Energy and Natural Resources
    SP  - 27
    EP  - 49
    PB  - Science Publishing Group
    SN  - 2330-7404
    UR  - https://doi.org/10.11648/j.jenr.20241301.13
    AB  - In this paper, the evapotranspiration balance of forest and grass vegetation in the Loess Plateau of Northwest China in different regions was analyzed using 6 indexes in 3 categoriess, namely, evapotranspiration ratio (Ea/Q, Ep/Q), evapotranspiration difference (Q-EA, Q-EP), and actual (potential) water supply ratio (1-Ea/Q, 1-Ep/Q). It is used to objectively reflect the suitability of different types of vegetation in different periods of growth based on precipitation. In another words this suitability reflects the support capacity of natural rainfall to vegetation consumed water through evapotranspiration under the specific climate environment of the Loess Plateau. The results show that: (1) The actual evapotranspiration water consumption of all types of vegetation in this region increased significantly in the first three months of the growth period from April to June, resulting in a relatively high moisture dryness index of vegetation with an average k value of 0.44. The main reason was that natural precipitation was less at this stage, and the gradually rising temperature strengthened the transpiration of most vegetation. The forest was the most stressed. At the end of May and the beginning of June, with the increase of natural precipitation, the average k value of all types of vegetation began to decline. From July to September, due to the flood season in this region, the precipitation increased sharply, and the moisture dryness index was in the lowest range of the whole growth period, and the average k value varied between 0.26 and 0.30 with the lowest value was 0.26 at the end of August and the beginning of September. (2) It is obvious that the water stress of forest is higher than that of shrub and grassland. It is fully indicated that the difference of transpiration caused by the difference of vegetation types leads to the difference of actual evapotranspiration water consumption of different vegetation types.
    
    VL  - 13
    IS  - 1
    ER  - 

    Copy | Download

Author Information
  • Sections