Evapotranspiration Evolution and Ecological Water Requirement Law in Agro-pastoral Ecotone Based on SEBAL Model

Ma Longlong; Du Lingtong; Gong Fei; DAN Yang; Wang Le; Zheng Qiqi; Meng Chen

doi:10.13961/j.cnki.stbctb.2019.04.028

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Evapotranspiration Evolution and Ecological Water Requirement Law in Agro-pastoral Ecotone Based on SEBAL Model

- Evapotranspiration Evolution and Ecological Water Requirement Law in Agro-pastoral Ecotone Based on SEBAL Model
- Bulletin of Soiland Water Conservation Vol. 39, Issue 4, Pages: 177-183(2019)
- 作者机构：
  
  1. 宁夏大学西北土地退化与生态恢复省部共建国家重点实验室培育基地,宁夏,银川,750021
  2. 宁夏大学西北退化生态系统恢复与重建教育部重点实验室,宁夏,银川,750021
  3. 宁夏大学农学院,宁夏,银川,750021
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2019.04.028
  CLC： TP79
- Published：2019
- 稿件说明：
移动端阅览
Ma Longlong, Du Lingtong, Gong Fei, et al. Evapotranspiration Evolution and Ecological Water Requirement Law in Agro-pastoral Ecotone Based on SEBAL Model[J]. Bulletin of Soiland Water Conservation, 2019, 39(4): 177-183.
DOI：

Ma Longlong, Du Lingtong, Gong Fei, et al. Evapotranspiration Evolution and Ecological Water Requirement Law in Agro-pastoral Ecotone Based on SEBAL Model[J]. Bulletin of Soiland Water Conservation, 2019, 39(4): 177-183. DOI： 10.13961/j.cnki.stbctb.2019.04.028.

摘要

[目的]对典型农牧交错区的蒸散格局、演变特征及其生态系统需水规律进行研究，为区域生态治理和水资源管理提供科学依据。[方法]以宁夏回族自治区盐池县为例，选择2000-2017年的4期Landsat遥感数据和气象资料等辅助数据，利用SEBAL模型反演该县不同时期秋季初的日蒸散，结合同期土地利用类型数据进行分析研究。[结果]①秋季初的日蒸散量由2000年的0.89 mm/d增加到了2017年的1.71 mm/d，增幅为92.1%，增强趋势显著。②日蒸散具有较强的空间异质性，总体呈南高北低的格局，尤以东南部的黄土丘陵区蒸散最高；近17 a蒸散的年增幅也表现出南高北低的特征，但不同时段的年增幅空间格局存在较大差异。③不同地类的蒸散存在差异，耕地、林地和草地的平均蒸散量分别为1.42，1.33，1.27 mm/d，但蒸散量年增幅最大的是草地。④近17 a盐池县生态需水总量和各地类的生态需水量都在增加，各地类生态需水量由高到低依次是草地、耕地和林地，但单位生态需水量最高的是耕地，最小的是草地；近17 a耕地和林地的生态需水量占总生态需水量的比例在下降，而草地生态需水量的比例则呈上升趋势。[结论]在盐池县大力实行生态治理工程的背景下，区域蒸散显著增强，植被生态系统的需水量明显增加，不同地类的蒸散和需水结构也发生变化。

Abstract

[Objective] The evapotranspiration pattern

evolvement characteristics and water demand laws of ecosystem in typical agro-pastoral areas were studied to provide scientific basis for regional ecological management and water resources management.[Methods] Yanchi County of Ningxia Hui Autonomous Region was taken as an example

four-phase of Landsat remote sensing data and meteorological data from 2000 to 2017 were selected

and the daily evapotranspiration in different periods of the county was retrieved by using the SEBAL model

and the land use type data was analyzed and studied in the same period.[Results] ① The daily evapotranspiration at the beginning of the fall increased from 0.89 mm/d in 2000 to 1.71 mm/d in 2017

with an increase of 92.1%

designating that it had an increasing trend. ② There was a strong spatial heterogeneity in the daily evapotranspiration

and it was generally high in the south and low in the north

especially in the southeast loess hilly region

it was the highest. The annual growth rate of the past 17 years' evapotranspiration showed a characteristic of high in the south and low in the north

but there were large differences in the spatial pattern of annual increase in different periods. ③ There were differences in the evapotranspiration of different types of land. The average evapotranspirations of arable land

woodland and grassland were 1.42

1.33

and 1.27 mm/d

respectively

but the largest annual increase in evapotranspiration was grassland. ④ The total amount of ecological water demand in Yanchi County and the amount of ecological water demand in various areas were increasing. The order of ecological water demand from high to low is grassland

arable land and woodland. However

the per unit ecological water requirement was the highest for arable land

and the smallest was of grassland. The shares of ecological water requirements of arable land and forest land in the total ecological water needs in the past 17 years was declining

while the proportion of grassland ecological water needs was on the rise.[Conclusion] Under the background of the intensive ecological management project in Yanchi County

the regional evapotranspiration increased significantly

the water demand of vegetation ecosystem increased obviously

and the evapotranspiration and water demand structure of different areas also changed.

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references

Wang K, Dickinson R E. A review of global terrestrial evapotranspiration:Observation, modeling, climatology, and climatic variability[J]. Reviews of Geophysics, 2012,50(2):1-54.

吴炳方,熊隽,闫娜娜. ETWatch的模型与方法[J].遥感学报,2011,15(2):224-239.

Katul G G, Oren R, Manzoni S, et al. Evapotranspiration:A process driving mass transport and energy exchange in the soil-plant-atmosphere-climate system[J]. Review of geophysics, 2012,50(3):RG3002.

Jung M, Reichstein M, Ciais P, et al. Recent decline in the global land evapotranspiration trend due to limited moisture supply[J]. Nature, 2010,467(7318):951-954.

Oki T, Kanae S. Global hydrological cycles and world water resources[J]. Science, 2006, 313(5790):1068-1072.

任庆福,杨志勇,李传哲,等.变化环境下作物蒸散研究进展[J].地球科学进展,2013,28(11):1227-1238.

张荣华,杜君平,孙睿.区域蒸散发遥感估算方法及验证综述[J].地球科学进展,2012,27(12):1295-1307.

白娟,杨胜天,董国涛,等.基于多源遥感数据的三江平原日蒸散量估算[J].水土保持研究,2013,20(3):190-195.

李放,沈彦俊.地表遥感蒸散发模型研究进展[J].资源科学,2014,36(7):1478-1488.

周玲,张丽,许君一,等.基于SEBAL模型的漓江流域蒸散量变化分析[J].水土保持研究,2015,22(4):332-337.

赵奎,丁国栋,吴斌,等.宁夏盐池毛乌素沙地柠条锦鸡儿茎流及蒸腾特征[J].干旱区研究,2009,26(3):390-395.

李金燕.宁夏中部干旱带盐池县植被生态需水规律研究[J].干旱区地理,2018,41(5):1064-1072.

白一茹,王幼奇,王建宇.宁夏荒漠草原区参考作物蒸散量估算方法比较[J].灌溉排水学报,2015,34(11):89-92.

李媛,谢应忠,王亚娟.宁夏中部干旱带潜在蒸散量变化及影响因素[J].生态学报,2016,36(15):4680-4688.

张晓东,刘湘南,赵志鹏,等.基于Landsat影像的宁夏盐池县植被景观格局变化特征[J].西北农林科技大学学报:自然科学版,2018,46(6):75-84.

李根.基于SEBAL和SEBS模型的鹰潭小流域蒸散发估算研究[D].江苏南京:南京信息工程大学,2014.

阿布都沙拉木·吐鲁甫,买买提·沙吾提,马春玥,等.基于SEBAL模型的渭-库绿洲蒸散量特征及影响因子研究[J].地球信息科学学报,2018,20(9):1361-1372.

范亚云,郭玉川,卢刚,等.艾比湖流域植被生态需水量[J].中国沙漠,2018,38(4):865-871.

Chen Yaning, Li Baofu, Li Zhi, et al. Water resource formation and conversion and water security in arid region of Northwest China[J]. Journal of Geographical Sciences, 2016,26(7):939-952.

张晓东,刘湘南,赵志鹏,等.基于像元二分法的盐池县植被覆盖度与地质灾害点时空格局分析[J].国土资源遥感,2018,30(2):195-201.

王重玲,朱志玲,白琳波,等.景观格局动态变化对生态服务价值的影响:以宁夏中部干旱带为例[J].干旱区研究,2015,32(2):329-335.

宋乃平,王兴,杨新国,等.农牧交错带县域农牧系统对气候波动的响应机制[J].生态学报,2016,36(13):3969-3977.

刘可,杜灵通,候静,等.2000-2014年宁夏草地蒸散时空特征及演变规律[J].草业学报,2018,27(3):1-12.

张霞,李明星,马柱国.近30年全球干旱半干旱区的蒸散变化特征[J].大气科学,2018,42(2):251-267.

Liu Binhui, Xu Ming, Henderson M. A spatial analysis of pan evaporation trends in China,1955-2000[J]. Journal of Geophysical Research, 2004,109(D15):D15102.

张晓玉,范亚云,热孜宛古丽·麦麦提依明,等.基于SEBS模型的干旱区流域蒸散发估算探究[J].干旱区地理,2018,41(3):508-517.

代鹏超,牛苏娟,毋兆鹏,等.新疆精河流域实际蒸散发时空变化特征[J].生态与农村环境学报,2017,33(7):600-606.

杨秀芹,王国杰,潘欣,张余庆.基于GLEAM遥感模型的中国1980-2011年地表蒸散发时空变化[J].农业工程学报,2015,31(21):132-141.

田静,苏红波,陈少辉,等.近20年来中国内陆地表蒸散的时空变化[J].资源科学,2012,34(7):1277-1286.

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