Abstract
The Taklimakan Desert is a typical arid area. Due to the needs of production and life, a total of 2 km2 of constructed green land (hereinafter referred to as CGL) has been formed in the sand dune, resulting in the uniform underlying surface of the desert having been changed, which has led to the change in the near-surface energy distribution pattern and the formation of a local climate of the CGL that is obviously different from that of the desert climate. Therefore, it is necessary to study the varied interval of the threshold of meteorological factors and the regional climate characteristics of the CGL under the background of desert. The main results are as follows. Firstly, from sunrise to noon, the increasing rate of temperature in natural sandy land (hereafter, NSL) was higher than that in CGL, and the opposite results occurred between noon and sunset. The peak temperature of CGL was 2 h later than that of NSL. At night, the temperature at the boundary of the CGL was generally higher than that of the NSL and the central area of the CGL. In addition, the results show that under the combined influence of underlying conditions, local circulation and small terrain, the CGL (middle) daily range of temperature > NSL (west) > CGL (east) > CGL (west). The positive temperature change period of CGL was significantly shorter than that of NSL in all seasons. However, temperature inversion occurred at night in all seasons. The intensity of the temperature inversion was strongest in winter, with a maximum temperature difference of 12.8 °C, followed by autumn, spring, and summer, with a maximum difference of 6.4 °C. Secondly, the wind speed in the daytime was higher than that at night, and the wind speed in NSL was higher than that in CGL. In summer, if the average wind speed of the NSL was quantified as 1.0 m/s, the wind speed lapse rate reached 30% at the boundary of the CGL. Similarly, in the central area of CGL, the wind speed lapse rate reached 71%.
Highlights
The anthropogenic impact on the climatic system enters into complex interactions with natural factors, determining the difficulty in predicting climatic changes [1]
Based on previous research experience, we conducted a systematic study on the local climate differences in the CGL in the hinterland of the Taklimakan Desert, which is an ideal experimental area for assessing the interaction between CGL and NSL
Tazhong area is located in the center of Taklimakan, approxisandy biological transmission sources in China [23,24], and has high-frequency sandstorm mately km from the desert edge
Summary
Wen Huo 1,2,3 , Fan Yang 1,4,5 , Xiefei Zhi 3 , Ali Mamtimin 1,2,6, * , Qing He 1 , Honglin Pan 1,4,5 , Cong Wen 1,2,6 , Yu Wang 1,4,5 , Ye Wu 1,2,6 , Xinghua Yang 1,4,5 , Chenglong Zhou 1,2,6 , Meiqi Song 1,4,5 , Lu Meng 1,2,6 and Minzhong Wang 1,4,5. Comparative Study on the Difference in Meteorological Monitoring between Constructed Green Land and Natural Sandy Land. Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. National Observation and Research Station of Desert Meteorology, Taklimakan Desert of Xinjiang, Urumqi 830002, China. Key Laboratory of Meteorological Disaster, Ministry of Education (KLME), Nanjing University of Information. Xinjiang Key Laboratory of Desert Meteorology and Sandstorm, Urumqi 830002, China
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