The cooling and humidifying effect by the forest ecosystem in the hilly and gully area of Loess Plateau of the Three North Shelter Forest System Project region

Yu, 肖玉 Xiao; Gaodi, 谢高地 Xie; Lin, 甄霖 Zhen; Jie, 徐洁 Xu; Yangyang, 王洋洋 Wang

doi:10.5846/stxb201812282830

Cited by 4 publications

(3 citation statements)

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“…The total flux of water vapor transported by vegetation and the ground as a whole to the atmosphere is the actual ET. Therefore, the daily absolute humidity change (Δa) in the study area through ET is as follows (Yang, 1994;Xiao et al, 2019):…”

Section: Estimation Of Cooling and Humidifying Effectmentioning

confidence: 99%

Effects of vegetation restoration on local microclimate on the Loess Plateau

et al. 2022

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With the implementation of the Grain for Green Project, vegetation cover has experienced great changes throughout the Loess Plateau (LP). These changes substantially influence the intensity of evapotranspiration (ET), thereby regulating the local microclimate. In this study, we estimated ET based on the Penman-Monteith (PM) method and Priestley-Taylor Jet Propulsion Laboratory (PT-JPL) model and quantitatively estimated the mass of water vapor and heat absorption on the LP. We analyzed the regulatory effect of vegetation restoration on local microclimate from 2000 to 2015 and found the following: (1) Both the leaf area index (LAI) value and actual ET increased significantly across the region during the study period, and there was a significant positive correlation between them in spatial patterns and temporal trends. (2) Vegetation regulated the local microclimate through ET, which increased the absolute humidity by 2.76-3.29 g m -3 , increased the relative humidity by 15.43%-19.31% and reduced the temperature by 5.38-6.43°C per day from June to September. (3) The cooling and humidifying effects of vegetation were also affected by the temperature on the LP. (4) Correlation analysis showed that LAI was significantly correlated with temperature at the monthly scale, and the response of vegetation growth to temperature had no time-lag effect. This paper presents new insights into quantitatively assessing the regulatory effect of vegetation on the local microclimate through ET and helps to objectively evaluate the ecological effects of the Grain for Green Project on the LP.

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Section: Estimation Of Cooling and Humidifying Effectmentioning

confidence: 99%

Effects of vegetation restoration on local microclimate on the Loess Plateau

et al. 2022

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“…In addition, the improper selection of tree species for planting also exacerbates the formation of LEASFs. Approximately 40.00% of the new arbor forests are distributed in the ''Three-North Shelter Forest'' area with the average annual precipitation of less than 400 mm, and unhealthy forest area accounts for 26.40% of the total afforestation by the ''Three-North Shelter Forest'' project (Xiao et al, 2019;Zhu and Zheng, 2019). Furthermore, the planting of afforestation tree species in unsuitable climatic conditions for growth is responsible for the formation of LEASFs.…”

Section: Poor Habitat Conditions Improper Selection Of Tree Species A...mentioning

confidence: 99%

“…With the implementation of a series of national restoration programs (Wang et al, 2018), large areas of artificial shelter forests (ASFs) have been constructed on the CLP. ASFs have become important ecological barriers (Zhu et al, 2004), resulting in immense ecological, economic, and societal benefits for local areas (Xiao et al, 2019;Zhu and Zheng, 2019). Improving the quality and increasing the efficiency of ASFs have become key issues for achieving ecologically sound development projects on the CLP.…”

Section: Introductionmentioning

confidence: 99%

Formation mechanisms and remediation techniques for low-efficiency artificial shelter forests on the Chinese Loess Plateau

Wang

Shangguan

2022

J. Arid Land

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The construction of artificial shelter forests (ASFs) has resulted in substantial ecological, economic, and societal benefits to the Chinese Loess Plateau (CLP). However, the health and benefits of ASFs are being increasingly threatened by the formation of low-efficiency artificial shelter forests (LEASFs). In this study, LEASFs are systematically analyzed in terms of their status, formation mechanisms, and developmental obstacles. The key restoration techniques and schemes were summarized to improve the quality and efficiency of LEASFs. LEASFs are formed by relatively complex mechanisms, but they arise mainly due to poor habitat conditions, improper tree species selections, mismatch between stands and habitat, extensive forest management measures, and human interferences. The restoration and improvement of LEASFs are hindered by water deficits, mismatch between stands and habitat, single management purpose, and low efficiency. LEASFs are becoming more complex due to their wide range, the challenges associated with their restoration, and insufficient technological measures for their restoration. The key techniques of the quality and efficiency improvement of LEASFs include basic forest tending methods, near-natural restoration, multifunction-oriented improvement, and systematic restoration. An understanding on the formation mechanisms of LEASFs and a scientific approach toward their restoration are urgently needed and critical for the ecological protection and high-quality development of LEASFs on the CLP. Based on these analyses, we recommend strengthening the monitoring and supervision of LEASFs, considering the bearing capacity of regional water resources, implementing multiple restoration techniques, promoting multifunction-oriented ecological development, and exploring new management concepts to achieve the sustainable development of ASFs on the CLP.

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Spatiotemporal characteristics of drought under different vegetation types and responses to climatic factors in Jilin Province, China

Lv,

Qin,

et al. 2024

Reg Environ Change

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The cooling and humidifying effect by the forest ecosystem in the hilly and gully area of Loess Plateau of the Three North Shelter Forest System Project region

Cited by 4 publications

References 0 publications

Effects of vegetation restoration on local microclimate on the Loess Plateau

Effects of vegetation restoration on local microclimate on the Loess Plateau

Formation mechanisms and remediation techniques for low-efficiency artificial shelter forests on the Chinese Loess Plateau

Spatiotemporal characteristics of drought under different vegetation types and responses to climatic factors in Jilin Province, China

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