Microclimate over the Center and Edge Areas of the Artificial Shelter Forest Land in Taklimakan Desert

doi:10.7522/j.issn.1000-694X.2016.00068

JOURNAL OF DESERT RESEARCH ›› 2017, Vol. 37 ›› Issue (5): 986-996.DOI: 10.7522/j.issn.1000-694X.2016.00068

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Microclimate over the Center and Edge Areas of the Artificial Shelter Forest Land in Taklimakan Desert

Jin Lili¹, Li Zhenjie², He Qing¹, Huo Wen¹, Yang Fan¹, Yang Xinghua¹

1. Center for Central Asian Atmospheric Sciences Research/Taklimakan Desert Atmosphere and Environment Observation and Experiment Station, Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
2. Lincang Meteorological Bureau, Lincang 677099, Yunnan, China

Received:2016-02-16 Revised:2016-05-23 Online:2017-09-20 Published:2017-09-20

Abstract

Abstract: In this paper, we analyzed the microclimatic characteristics over the center and edge areas in artificial shelter forest land in hinterland of the Taklimakan Desert by use of air temperature, relative humidity, pressure, wind speed, wind direction (observed) and specific humidity (calculated) data from August 2013 to July 2014. The result showed that the microclimate was mainly reflected in the annual wind speed and humidity in spring, summer and autumn, while, annual air temperature and humidity in winter are mainly affected by temperature inverse and humidity inverse. During the day time, air temperature difference was small between the center and edge areas in artificial shelter forest land, while their difference is large at night. There is obviously inversion phenomenon within 80m above the ground at night in January, April, July and October. The air temperature in the edge area is higher than in the center area, and the difference range is 0.1-8.3℃, 0.3-4.1℃, 0.4-4.2℃, 0.5-8.4℃, respectively, in January, April, July, and October. Meanwhile, the terrain of edge area is higher than the center area. The humidity in the center area is significantly higher than in the edge area from March to October. Among them, the humidity in Tazhong station is about 0.3-1.8 g·kg^-1 higher than Xishaliang, 0.7-3.5 g·kg^-1 higher than Dongshaliang from March to October. This phenomenon reflects the increasing humidity effect of the green belt. Whereas, the humidity in the center area is smaller than in the edge area in January, which is may caused by the humidity inversion phenomenon within 80 m above the ground. The wind speed in the center area and the edge area is strong from March to October, while, it is small from December to February. The wind speed in the center area is significantly smaller than in the edge area from March to October. The mean maximum wind speed in Tazhong station is about 0.5-1.0 m·s^-1higher than in the edge area from March to October. This phenomenon reflects that the vegetation could decrease the wind speed.

Key words: Taklimakan Desert, artificial shelter forest land, meteorological elements, microclimate

CLC Number:

P463

Jin Lili, Li Zhenjie, He Qing, Huo Wen, Yang Fan, Yang Xinghua. Microclimate over the Center and Edge Areas of the Artificial Shelter Forest Land in Taklimakan Desert[J]. JOURNAL OF DESERT RESEARCH, 2017, 37(5): 986-996.

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Microclimate over the Center and Edge Areas of the Artificial Shelter Forest Land in Taklimakan Desert

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