Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD031295 |
Estimating the Increase in Regional Evaporative Water Consumption as a Result of Vegetation Restoration Over the Loess Plateau, China | |
Shao, Rui1; Zhang, Baoqing1; Su, Tongxuan1; Biao, Long1; Cheng, Linyin2; Xue, Yayong1; Yang, Wenjing1 | |
2019-11-21 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:22页码:11783-11802 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | One of the world's largest revegetation programs, the Grain for Green Project (GfGP), has been taking place on the Loess Plateau of China since 1999. Such massive revegetation causes changes in the region's hydrological cycle, water availability, and ecological sustainability through enhanced evapotranspiration (ET). Here we quantify effects of the GfGP's revegetation on ET over this water-stressed region. Our approach involves use of a modified Priestley-Taylor Jet Propulsion Laboratory (PT-JPL) model, incorporating vegetation dynamics as a new component. The original PT-JPL model has been expanded from site scale to regional scale, thereby allowing its application to the Loess Plateau. The modified PT-JPL model was calibrated and validated against flux tower-measured and water balance-based ET observations. The model performed well at a regional scale with the incorporation of vegetation dynamics. To quantify the net effect of revegetation on evaporative water consumption after the GfGP, we compared scenarios with and without revegetation. We find the revegetation has led to a significant increase in ET across the Loess Plateau, of 4.39 mm/yr averaged over the past 15 years (mean annual precipitation was 464 mm). Compared with the no revegetation scenario, the GfGP revegetation appreciably enhanced evaporative water consumption across the Loess Plateau, by approximately 31 x 10(8) m(3)/yr (or 4.90 mm/yr). Our findings suggest that to maintain ecologically sustainable restoration and rational use of water resources, factors including the strength of revegetation and the relationship between evaporative water consumption and revegetation type should be considered. |
英文关键词 | evapotranspiration the Grain for Green Project PT-JPL model revegetation water balance |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000498137200001 |
WOS关键词 | ENERGY BALANCE ALGORITHM ; VAPOR-PRESSURE DEFICIT ; SOIL-MOISTURE ; YELLOW-RIVER ; TERRESTRIAL EVAPORATION ; GLOBAL ESTIMATION ; LAND EVAPORATION ; CARBON-DIOXIDE ; CLIMATE-CHANGE ; HEAT-FLUX |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225795 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou, Gansu, Peoples R China; 2.Univ Arkansas, Dept Geosci, Fayetteville, AK USA |
推荐引用方式 GB/T 7714 | Shao, Rui,Zhang, Baoqing,Su, Tongxuan,et al. Estimating the Increase in Regional Evaporative Water Consumption as a Result of Vegetation Restoration Over the Loess Plateau, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(22):11783-11802. |
APA | Shao, Rui.,Zhang, Baoqing.,Su, Tongxuan.,Biao, Long.,Cheng, Linyin.,...&Yang, Wenjing.(2019).Estimating the Increase in Regional Evaporative Water Consumption as a Result of Vegetation Restoration Over the Loess Plateau, China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(22),11783-11802. |
MLA | Shao, Rui,et al."Estimating the Increase in Regional Evaporative Water Consumption as a Result of Vegetation Restoration Over the Loess Plateau, China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.22(2019):11783-11802. |
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