Desert locust is an important pest to agriculture. In 2019–2020, a major upsurge originated in the southern Arabian Peninsula and gradually spread east Africa, then south-west Asia, as far Pakistan India, even reaching Nepal, resulting agricultural losses. For first time, few swarms entered Tibet. Using field observations experiments, we studied their path Tibetan plateau behavior at these very...

The kinetic theory of electric discharge in thunderclouds generated by runaway breakdown (RB) and extensive atmospheric shower (EAS) is developed. A giant growth of relativistic and thermal electrons, gamma and radio emission is predicted. The theory is compared with the recent results of EAS-radio experiments at Tien Shan mountains and with observations of lightning initiation process and narr...

A shift in chaparral species composition occurs from coastal to inland sites of the Santa Monica Mountains of southern California. Past studies have attributed this pattern to differential adaptations of chaparral species to gradients in moisture and solar radiation. We examined an alternate hypothesis, that shifts in species composition from coastal to inland sites is a result of differential ...

As a very important plant resource, wood played varied and roles in the lives of ancient people. In present study, was discovered Yanghai cemetery Turpan Basin, which belonged to Subeixi culture (~1300BC–200AD). By using traditional classification techniques anatomy, four taxa wood, viz. Populus sp., Salix Picea as well Betula were identified. Woods Populus, Salix, mainly used for tomb construc...

21 Ž . Concentrations of cosmogenic Ne Ne measured in quartz have been used to estimate long-term rates of denudation c for contrasting landscape components in the Dry Valleys area of the Transantarctic Mountains, southern Victoria Land, Antarctica. Samples of Beacon Supergroup sandstones and granitic basement were collected from two contrasting landscape elements—low-relief, high-elevation sur...