Continue to high temperature and rain, will it affect Sichuan grain harvest?Meteorological experts say this

Chuanguan News reporter Chen Ting

At 10:34 on August 12, the Balzhong Meteorological Observatory issued a drought blue warning: It is estimated that until the end of mid -August, Bazhong City will still maintain high temperature and rainy weather. ° C, most of the city's city will reach heavy meteorological drought. Difficulty in drinking and animals and animals and crops will be further expanded due to drought disasters, and water conservancy projects may be sharply reduced and difficult to replenish. Please pay attention to prevent the adverse effects of drought weather.

This is the second city that launched a drought warning after the first drought blue warning of Dazhou on August 10. Subsequently, the Meteorological Observatory of Tongjiang, Bazhou, Nanjiang, Pingchang, and other counties (districts) of Bazhong City issued a drought blue warning one after another.

At 16:00 on August 10, the Sichuan Provincial Meteorological Bureau launched a high -temperature IV emergency response to the high temperature disaster, and the Sichuan Provincial Meteorological Observatory issued the first high -temperature orange warning this year.

The monitoring of the Central Meteorological Station shows that since late June, the high temperature days are generally 20-40 days since the east to the middle and lower reaches of the Yangtze River in the Sichuan Basin, which is 5 to 15 days than the same period of the year. God; since July, the southeast of the Sichuan Basin has a precipitation of less than 50 mm, which is more than 50 % less than the same period.

The monitoring results of the Sichuan Provincial Climate Center show that according to the monitoring standards of dry drought in Sichuan Province, at present, the province still has 45 droughts in the province to continue and develop. God, Langzhong, Hanyuan, Salt Pavilion, Wang Cang, Cangxi, Shigang, Guang'an, Ziyang, Jianyang, Zizhong, Longchang, Guyi, Ganzi, Jinchuan, Mianning, Yuexi.

The average precipitation volume of Sichuan Province since July of Sichuan Province, according to the public account of the Sichuan Climate Show

The continuous high temperature and rainy weather affects Grain production in Sichuan this year?

The National Meteorological Observatory released on August 8 The National Agricultural Meteorological Influence Forecast and Evaluation Report believes that the continuous high temperature weather is not conducive to the growth and development of southern crops, economic forests and fruits, and drought in Sichuan and other places. The number of high -temperature heat damage in the first season of Sichuan is more than third in the same period in the past ten years; the first season of rice in the eastern Sichuan Basin is affected by high temperature heat damage than 2013.

From mid -July to August 7th since 1981, Sichuan's one -season rice high temperature and heat damage daily, according to China Meteorological Network

On August 8, 2022, 20 cm of soil in the Yangtze River Basin area was affectionate. According to China Meteorological Network

Talking about the impact of sunny heat and rainy weather on Sichuan agricultural production, the Sichuan Agricultural Meteorological Center analyzed on August 11 that although high temperature drought continued, there was still intermittent precipitation in early August. Due to the differences in the fertility process of crops in each of the pots in the basin, the differences in the process of cropping processes of the crops of the pots were compared Large, high temperature and hot weather have different impact on all regions.

Specifically: clear weather is conducive to the timely exposure of the first season of rice in the pelvic regeneration rice area, and the high temperature weather also reduces the occurrence of diseases and insect pests in the area to a certain extent; Growth is significantly affected. The cracking of rice fields without water conservancy irrigation cannot be alleviated, and it threatens largely on the output. Most of the water sources are guaranteed to be guaranteed by the Pen West Plain area. The abundant sunshine is conducive to crop growth and output formation.

The high temperature and hot weather in the basin is still continuing. The Central Meteorological Observatory reminded that agricultural droughts in the southeast of the Sichuan Basin may develop. It is recommended to adjust the temperature in the rice area in a timely manner, irrigate deep water during high temperature periods and keep the water layer, and spray measures such as plant regulators to prevent or reduce high temperature hazards. The Sichuan Provincial Climate Center believes that the drought in the pelvis and parts of the pot will continue to develop.

At present, the large -spring crops in the agricultural district of our province are in a critical period. The Sichuan Provincial Center for Agricultural Meteorological made two suggestions:

——In local governments to strengthen field management, which are mainly based on high temperature and heat damage, scientifically and reasonable fertilization for the crops that have suffered heat damage, and promote their recovery growth.

——The high temperature and heavy rainy weather are beneficial to the outbreak of pests and insect pests. Each agricultural area still needs to strengthen the monitoring of pests and insect pests, focusing on the occurrence of bacterial diseases and relocated pests. When preventing and controlling diseases and insects, pay attention to avoid drug damage caused by medication at high temperatures.

★ Small knowledge: Meteorological drought is not equal to agricultural drought

Meteorological drought refers to the less precipitation within a period of time. Due to the imbalance of evaporation and the income and expenditure of precipitation, the phenomenon of water shortage caused by water expenditure is greater than water income.

Agricultural drought refers to the unbalanced supply and demand of farmland water due to insufficient water supply, hindering the normal growth and development of crops, and can be divided into drought -free, light drought, drought, heavy drought, and special drought.

Agricultural drought is definitely related to the drought of meteorological, but when the meteorological drought occurs, agricultural drought may occur. It depends on the water requirements and soil feelings of the crop. In the place where irrigation facilities are incomplete, meteorological drought is an important factor that causes agricultural drought.

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