Shaanxi “Qiulin” weather affects crop maturity and harvest

Since September, Shaanxi has suffered from the strong autumn rain weather. The heavy rainfall has once again put the Hanjiang River basin in an alert state. The flood control and flood control situation in the province is severe. In this regard, the leaders of the Shanxi Provincial Party Committee and the provincial government attached great importance to it. On September 12, Shanxi Governor Zhao Zhengyong issued an instruction to require the anti-finger to issue an early warning and strengthen the notice in southern Shaanxi, and seriously strengthen the prevention to prevent the local rainstorm after the long rain. Geological disasters ensure the safety of people's lives.

Affected by the southwest warm and humid airflow and the westerly trough, from 08:00 on September 9 to 08:00 on the 14th, Shaanxi Province has another strong rainy and rainy weather in autumn. Heavy precipitation mainly occurs on 11-12 and 13-14 (08~ At 08:00, there was a large-scale heavy rain in Guanzhong and southern Shaanxi.

According to the latest meteorological data analysis, it is expected that there will be a precipitation weather process in most parts of Shaanxi Province from the 16th to the 19th. Continuous rainfall will hinder urban traffic and people's travel, and more will affect urban drainage, crop maturity and harvest. Continuous rainfall is not suitable for harvesting and drying of autumn harvest crops.

Due to the continuous heavy rainfall in the central and southern Shaanxi Province in the early period, the soil moisture is saturated, which leads to the soft soil in the mountainous area, which is easy to form secondary disasters such as landslides, collapses, rolling stones and mudslides. Provincial Defense General pointed out that this round of rainfall repeated in the southern part of northern Shaanxi, Guanzhong and southern Shaanxi in the early autumn rain and heavy rain area, the Weihe River and Han River may have another flood process. The northern Shaanxi and northern Hebei areas should highlight the geological disasters such as the collapse of loess and the safety of earthen kiln dilapidated buildings, low-lying areas and reservoirs, and silt dams; the south of Guanzhong should highlight the main dangers of the Weihe River, the tributaries of Nanshan and the urban shackles; It is necessary to highlight the prevention of mudslides, small and medium-sized rivers, and small and medium-sized reservoirs. All localities should transfer dangerous villages such as dangerous houses and dangerous kiln, low-lying and low-lying areas in the towns, mudslides and flood-prone areas, landslide geological hazards, and tourist attractions with safety hazards to avoid casualties.

It is recommended that all localities strengthen the inspection, risk-reduction and reinforcement of hidden danger points of geological disasters, and do a good job in farmland management and pest control after continuous rain. And strengthen the safety of river floods and reservoirs.

Huaxi Autumn Rain, known as “Autumn Shower” in Shaanxi Province, means that after the mid-August, when the western Pacific subtropical high retreats southward, during the south of the Yangtze River, its western edge carries a large amount of warm and humid airflow, which continues with its north. The cold air that constantly splits south and south meets in the middle and south of Shaanxi, forming a long-lasting, high-intensity precipitation process. Autumn showers last until the end of October.

The autumn rain in Shaanxi has the characteristics of long duration, large rainfall, many heavy rain stations and serious disasters. The floods in the Weihe River Basin mainly occur during the autumn rain. According to the statistics of the Shaanxi Provincial Climate Center, since 2000, Shaanxi Province has entered the autumn showers. In addition to 2002 and 2004, there are different degrees of autumn showers in the remaining 9 years.