Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration

Despite numerous assessments of the impact of land-use change (LUC) on terrestrial evapotranspiration (ET) that have been conducted using land surface models (LSMs), no attempts have been made to evaluate their performance in this regard globally. Errors in simulating LUC impacts on ET largely stem...

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Hlavní autoři: Qilin Wang, Yingping Wang, Lu Zhang, Shujing Qin, Quan Zhang, Pan Liu, Liu Liu, Kaijie Zou, Shujie Cheng, Lei Cheng
Médium: Článek
Jazyk:English
Vydáno: IOP Publishing 2021-01-01
Edice:Environmental Research Letters
Témata:
On-line přístup:https://doi.org/10.1088/1748-9326/ac38db
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author Qilin Wang
Yingping Wang
Lu Zhang
Shujing Qin
Quan Zhang
Pan Liu
Liu Liu
Kaijie Zou
Shujie Cheng
Lei Cheng
author_facet Qilin Wang
Yingping Wang
Lu Zhang
Shujing Qin
Quan Zhang
Pan Liu
Liu Liu
Kaijie Zou
Shujie Cheng
Lei Cheng
author_sort Qilin Wang
collection DOAJ
description Despite numerous assessments of the impact of land-use change (LUC) on terrestrial evapotranspiration (ET) that have been conducted using land surface models (LSMs), no attempts have been made to evaluate their performance in this regard globally. Errors in simulating LUC impacts on ET largely stem from LUC data interpretation (LI, i.e. mapping of gridded LUC data into annual plant function types) and model structure (MS, i.e. parameterization of land-surface processes). The objective of this study was to benchmark ET estimates from four LSMs using the Zhang-curve, a prototype of the Budyko framework that has been validated against global hydrological observations and used widely to quantify the impacts of LUC on ET. A framework was further proposed to quantify and attribute errors in estimated ET changes induced by LI or MS. Results showed that all LSMs underestimated ET changes by about 55%–78%, and 37%–48% of the error was attributable to LI, but only 11%–32% of the error was attributable to MS across the four LSMs. From a hydrological perspective, our analysis provided insights about the errors in estimated impacts of LUC on ET by LSMs. The results demonstrated that LUC data interpretation accounted for a larger fraction of errors than LSM structure. Therefore, there is an urgent need for the defining and development of consistent protocols for interpreting global LUC data for future assessments.
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spelling doaj.art-74066f623d1d40aba6b51b4d3bac1fc52023-08-09T15:09:17ZengIOP PublishingEnvironmental Research Letters1748-93262021-01-01161212404710.1088/1748-9326/ac38dbLand surface models significantly underestimate the impact of land-use changes on global evapotranspirationQilin Wang0https://orcid.org/0000-0002-2724-1790Yingping Wang1Lu Zhang2Shujing Qin3Quan Zhang4https://orcid.org/0000-0003-1127-5969Pan Liu5https://orcid.org/0000-0002-3777-6561Liu Liu6https://orcid.org/0000-0002-4915-206XKaijie Zou7Shujie Cheng8Lei Cheng9State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaCSIRO Oceans and Atmosphere , Aspendale, VIC 3195 Victoria, AustraliaCSIRO Land and Water, Black Mountain , Canberra ACT 2601, AustraliaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaCollege of Water Resources and Civil Engineering, China Agricultural University , Beijing 100038, People’s Republic of ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University , Wuhan 430072, People’s Republic of China; Hubei Provincial Collaborative Innovation Center for Water Resources Security , Wuhan 430072, People’s Republic of China; Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan University , Wuhan, Hubei, People’s Republic of ChinaDespite numerous assessments of the impact of land-use change (LUC) on terrestrial evapotranspiration (ET) that have been conducted using land surface models (LSMs), no attempts have been made to evaluate their performance in this regard globally. Errors in simulating LUC impacts on ET largely stem from LUC data interpretation (LI, i.e. mapping of gridded LUC data into annual plant function types) and model structure (MS, i.e. parameterization of land-surface processes). The objective of this study was to benchmark ET estimates from four LSMs using the Zhang-curve, a prototype of the Budyko framework that has been validated against global hydrological observations and used widely to quantify the impacts of LUC on ET. A framework was further proposed to quantify and attribute errors in estimated ET changes induced by LI or MS. Results showed that all LSMs underestimated ET changes by about 55%–78%, and 37%–48% of the error was attributable to LI, but only 11%–32% of the error was attributable to MS across the four LSMs. From a hydrological perspective, our analysis provided insights about the errors in estimated impacts of LUC on ET by LSMs. The results demonstrated that LUC data interpretation accounted for a larger fraction of errors than LSM structure. Therefore, there is an urgent need for the defining and development of consistent protocols for interpreting global LUC data for future assessments.https://doi.org/10.1088/1748-9326/ac38dbland-use changesterrestrial evapotranspirationland surface modelsBudyko frameworkland-use change data interpretationmodel structure
spellingShingle Qilin Wang
Yingping Wang
Lu Zhang
Shujing Qin
Quan Zhang
Pan Liu
Liu Liu
Kaijie Zou
Shujie Cheng
Lei Cheng
Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration
Environmental Research Letters
land-use changes
terrestrial evapotranspiration
land surface models
Budyko framework
land-use change data interpretation
model structure
title Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration
title_full Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration
title_fullStr Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration
title_full_unstemmed Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration
title_short Land surface models significantly underestimate the impact of land-use changes on global evapotranspiration
title_sort land surface models significantly underestimate the impact of land use changes on global evapotranspiration
topic land-use changes
terrestrial evapotranspiration
land surface models
Budyko framework
land-use change data interpretation
model structure
url https://doi.org/10.1088/1748-9326/ac38db
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