Temperature-based approaches for estimating monthly reference evapotranspiration based on MODIS data over North China

Zheng, Xunhua; Zhu, Jiaojun

doi:10.1007/s00704-014-1269-x

Cited by 8 publications

(5 citation statements)

References 40 publications

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“…The annual average temperature decreases from approximately 15°C in the southern tip to −17°C in the high mountains of the northwestern region, with the mean temperature ranging between 3 and 9°C in most areas. Precipitation decreases from the east (approximately 750 mm) to the west (less than 50 mm), reflecting the declining effect of moist air from the Pacific Ocean (Zheng and Zhu 2015a). The zonal vegetation types are dominated by temperate forest, temperate steppe, and desert regions from east to west of the TNR (Fang et al 2002).…”

Section: Study Areamentioning

confidence: 97%

“…The TNR are bordered by the Pacific Ocean to the east and Eurasia elsewhere. The majority of eastern China is affected by East Asian monsoons, and the inland region is under the influence of a typical continental climate (Zheng et al 2013a;Zheng and Zhu 2015a). The annual average temperature decreases from approximately 15°C in the southern tip to −17°C in the high mountains of the northwestern region, with the mean temperature ranging between 3 and 9°C in most areas.…”

Section: Study Areamentioning

confidence: 99%

“…Estimation of annual/monthly ET o . Based on the estimated air temperatures (T mean , T max , and T min ), extraterrestrial solar radiation, and the adjusted C o , the annual/monthly ET o in a raster format with 1-km resolution was estimated using the adjusted Hargreaves method (Zheng and Zhu 2015a).…”

Section: Determination Of Parameters Of Hargreaves Equation (C O )mentioning

confidence: 99%

“…The objectives of the TNSFP are to prevent mobile sand from wind erosion, to harness soil and water losses, and to produce multiple forest products in the TNR Zheng et al 2013a;Zheng and Zhu 2015a).…”

Section: Introductionmentioning

confidence: 99%

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A new climatic classification of afforestation in Three-North regions of China with multi-source remote sensing data

Zheng

Zhu

2015

Theor Appl Climatol

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Afforestation and reforestation activities achieve high attention at the policy agenda as measures for carbon sequestration in order to mitigate climate change. The ThreeNorth Shelter Forest Program, the largest ecological afforestation program worldwide, was launched in 1978 and will last until 2050 in the Three-North regions (accounting for 42.4 % of China's territory). Shelter forests of the Three-North Shelter Forest Program have exhibited severe decline after planting in 1978 due to lack of detailed climatic classification. Besides, a comprehensive assessment of climate adaptation for the current shelter forests was lacking. In this study, the aridity index determined by precipitation and reference evapotranspiration was employed to classify climatic zones for the afforestation program. The precipitation and reference evapotranspiration with 1-km resolution were estimated based on data from the tropical rainfall measuring mission and moderate resolution imaging spectroradiometer, respectively. Then, the detailed climatic classification for the afforestation program was obtained based on the relationship between the different vegetation types and the aridity index. The shelter forests in 2008 were derived from Landsat TM in the Three-North regions. In addition, climatic zones and shelter forests were corrected by comparing with natural vegetation map and field surveys. By overlaying the shelter forests on the climatic zones, we found that 16.30 % coniferous forests, 8.21 % broadleaved forests, 2.03 % mixed conifer-broadleaved forests, and 10.86 % shrubs were not in strict accordance with the climate conditions. These results open new perspectives for potential use of remote sensing techniques for afforestation management.

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Section: Study Areamentioning

confidence: 97%

Section: Study Areamentioning

confidence: 99%

Section: Determination Of Parameters Of Hargreaves Equation (C O )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new climatic classification of afforestation in Three-North regions of China with multi-source remote sensing data

Zheng

Zhu

2015

Theor Appl Climatol

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“…However, at a large watershed scale, it is very difficult or impossible to measure the P factor of every plot. Therefore, only a rough P factor value was calculated using the Wener method (33,44)…”

Section: Impact On Soil Erosion By Water 1) Estimation Of Soil Erosiomentioning

confidence: 99%

Assessment of the World Largest Afforestation Program: Success, Failure, and Future Directions

Zheng

Wang

et al. 2017

Preprint

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The Three-North Afforestation Program (TNAP), initiated in 1978 and scheduled to be completed in 2050, is the world's largest afforestation project and covers 4.07 x 10 6 km 2 (42.4%) of China. We systematically assessed goals and outcomes of the first 30 years of the TNAP using high-resolution remote sensing and ground survey data.With the 30-year net reduction was 13.0% (4.05×10 6 ha), with 8.0% being accounted for by afforestation in areas with only slight, prior desertification. In addition to its direct impacts, the TNAP has enhanced people's awareness of environmental protection and attracted consistent attention and long-term commitment from the Chinese government to the restoration and protection of fragile ecosystems in the vast ThreeNorth region. The significant decline in forest quality, limited success in reducing desertification, and low coverage of shelterbelts are aspects of the TNAP in need of re-assessment, and additional ca. 34 billion dollars will be needed to ensure the completion of the TNAP.

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Reference Crop Evapotranspiration Estimation Using Remote Sensing Technique

Mukpuou

Pandey

Chowdary

2020

Water Management and Water Governance

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Temperature-based approaches for estimating monthly reference evapotranspiration based on MODIS data over North China

Cited by 8 publications

References 40 publications

A new climatic classification of afforestation in Three-North regions of China with multi-source remote sensing data

A new climatic classification of afforestation in Three-North regions of China with multi-source remote sensing data

Assessment of the World Largest Afforestation Program: Success, Failure, and Future Directions

Reference Crop Evapotranspiration Estimation Using Remote Sensing Technique

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