Wild boar destroys crops.

These days, Lin Xin, a villager in Qiu Feng Village, Dailing District, is in a particularly good mood. Although the climate was dry last year, food prices were high, and it was another bumper year when food was sold out. While counting money happily, Lin Xin kept praising Wang Jinghua of Dailing Wildlife Conservation Department, because he brought the inverter to farmers. This humble gadget has kept the wild boar that destroyed crops out of the farmland for five years in a row, and let farmers taste the benefits brought by high technology. Help farmers solve big problems

Most of the villagers in Qiu Feng Village in Dailing District make a living by farming, and the farmers' land is concentrated in the sparsely populated forest edge. A few years ago, in autumn, there were always wild boars going down the mountain for a "dinner". The villagers felt extremely distressed when they saw that the crops that were about to mature were eaten by wild boars. They tried their best to deal with wild boar, but it always had little effect.

Since 2000, July and August have been the biggest headache for farmers every year. In order to protect crops from wild boar and minimize losses, villagers set up crop protection teams, especially strengthening night patrols. People beat the washbasin with wooden sticks, and some even took out gongs and beat them hard along the farmland. This method was very effective at that time. A few days later, just after people left, the wild boar swaggered into the farmland again. They got into the lush farmland, the Zhang family arched two rows of potatoes, and the Li family chewed a few pieces of corn and soybeans ... Many old people in the village said that when they met wild boars when they went down the mountain, they set a condom to catch wild boars, or found a few experts to hunt wild boars. But now wild boar is listed as a protected animal, and villagers can't kill it. The fields are all on the edge of the forest. In order to prevent fire, the villagers are even more afraid to scare them. Wild boars go down the mountain to eat crops, which causes the destruction of farmland year by year every year, and the villagers complain about it.

At the beginning of August 2002, villagers began to organize patrols again. At this time, Wang Jinghua of Dailing Wildlife Conservation Department came to the village with a Japanese. They found Director Xie of the village committee and said that they would install a high-tech product-inverter-that could "cure" wild boar in the villagers' farmland.

Wang Jinghua told the villagers that this inverter was brought by Tami Ichihiko, director of Hiroshima Black Bear Research Institute, and he was a Japanese who came with him. This technology has matured in Japan. They explained the working principle of the inverter to the villagers. This thing is actually very simple, that is, the low-voltage direct current in a 12 volt battery is converted into high-voltage current, and the farmland is surrounded by thin iron wires to form an electric fence. When the wild boar trying to enter the farmland and harm crops touched the power line, it was immediately shocked and fled. Wang Jinghua explained several times, and said that the equipment is currently in the experimental stage in our city, and hoped that the villagers would cooperate with the experiment without charging any fees for the experimental field. But the villagers demanded a lot, that is, no one agreed to do experiments on their own farmland. Seeing the anxious appearance, Director Xie showed his attitude and regarded his soybean field as an experimental field. A villager surnamed Lin, who is adjacent to his plot, also agreed to take part in the experiment.

With the participation of these two villagers, Wang Jinghua is very happy. He and Shi Yantami took the villagers to install batteries in the farmland, dug a pit every 4 meters around the experimental field, buried a small pole with a height of 60- 100 cm in the pit, and then fixed the iron wire with the thickness of the oil tip of the battery on the small pole with insulating plastic and other materials to form a circle, and the whole experimental facility was installed. Soon, this humble little facility came into play. The villagers found that the outside of the experimental field was covered with the footprints of wild boar, but the crops surrounded by wire were not damaged at all, while the adjacent plots were eaten and destroyed by wild boar one after another. Seeing that this device really worked, several villagers approached Wang Jinghua to discuss bringing their crops into the "protection circle". After the autumn harvest this year, the same plots and experimental fields made a lot of money because the wild boar did little harm. Therefore, the villagers regard Wang Jinghua and the inverter he brought as the patron saint of crops. Attend a seminar and "steal" high technology.

Speaking of inverters, Wang Jinghua said with a smile that he "stole" them while attending a seminar. Things have to start from the summer of 2002.

In July of that year, Wang Jinghua went to Harbin to attend the China-Japan-Korea Bear Seminar. During the meeting, Wang Jinghua met with Tamihiko, director of Hiroshima Black Bear Research Institute. Tamiyoshi is in his fifties, and he is very humorous. The institute where he works is a non-governmental organization, whose purpose is to protect animals and maintain ecological balance. During the exchange, Wang Jinghua learned that the main purpose of Tammy's visit to China is to track wild black bears by using wireless telemetry technology, and to study their range of activities and living habits, so as to better protect black bears. However, after staying in China for a long time, Tamihiko failed to track the wild bears as she wished, and the research on this subject has not been completed.

One day, Wang Jinghua accidentally found a device for preventing and controlling bears through wires, that is, an inverter, in Tamiyahiko's laptop. Many farmland in my hometown has been destroyed by wild boar, but farmers are helpless. This device can effectively prevent the damage of wild animals to crops, without harming people and livestock or polluting the land. Wang Jinghua heart movement, with the idea of inverter. He told Misida that there were wild black bears in his hometown, and he could take Misida to Dailing to find black bears. In this way, Wang Jinghua "tricked" Tamiya into Qiu Feng Village.

After arriving at Qiu Feng Village of Dailing Forestry Bureau, Wang Jinghua immediately took Tami Ichihiko to see the crops destroyed by wild boar. Wang Jinghua told Tamihiko that in recent years, the city has implemented a natural forest protection project, and the living environment of wild animals has been restored. At the same time, people's awareness of wildlife protection has increased, which has increased the number and distribution of wildlife populations in China year by year. In addition, from spring to autumn every year, the number of wild animals and plants available for wild boar in the forest is obviously reduced. Wild boar can't find food in the forest, so they have to go down the mountain for food. The delicious food is relatively concentrated and safer. In order to minimize losses, farmers have taken various measures to prevent wild boar from invading, such as artificial driving, building forest protection sheds, setting off firecrackers and digging deep ditches, but the control effect is not good. Tami Kazuhiko can only understand simple Chinese. When he really doesn't understand, they communicate in crude English, and they even talk with gestures. Finally, Tami Kazuhiko agreed to temporarily put down his research topic and help local farmers solve the problem that wild boar harms crops.

The inverter mainly converts the low-voltage direct current of the battery into the high-voltage alternating current of 2500-3500 volts. Through the electric fence, animals that want to enter woodland and farmland will flee immediately after being frightened, thus achieving the purpose of prevention. Transformers and conductors have the characteristics of high efficiency and low consumption. An ordinary 12 volt car battery can drive 40-60 kilometers of low-consumption wires, the protection area can reach 6-25 square kilometers, and the battery discharge duration can last for more than two weeks. The transformer is equipped with advanced equipment, such as battery charging indicator, leakage indicator, leakage protection, safe voltage and current regulator. The invention has the advantages of lightning protection, anti-aging, low (high) temperature resistance, leakage prevention, sensitive discharge, obvious warning and reusability.

After Tamihiko promised to help, he made a special trip back to Japan to get the inverter. The experiment lasted for a month or two. From the beginning of August, the two men were in Qiu Feng Village. On a hot summer day, let alone the air conditioner in the room, there is no electric fan. Two people often soak watermelons in cold well water for two or three hours, and then one person holds half of them and eats them in a carefree place. Tammy and Hihiko will take off their coats and eat them with bare arms, without any tenderness. Besides discussing animal protection, they often chat together. They talk about a wide range of topics, such as lovers, family, children, work, life and football. Except Tammy's Chinese is a little stiff, outsiders can't see that the middle-aged people who are blushing and thick-necked for a game of chess come from two different countries.

During the months in Qiu Feng Village, Wang Jinghua and Tami Ichihiko were closely linked through a small inverter. In addition to often discussing the role of inverter in farmland protection, they also discussed the application of this high-tech gadget in forest land protection in view of the phenomenon that animals such as red deer and roe deer bite the twigs, twigs and leaves of larch and poplar in the new afforestation area. In addition, some farmers graze at will, endangering crops and young forests. These specific fields provide a broad stage for the application of inverters. Once this equipment is used, the harm of various animals to forest land and farmland will be reduced, and the government's compensation expenditure in this regard will also be reduced accordingly. Even if the number of wild animals does not exceed the forest load, the inverter can control the wild animals in the forest without causing any harm. At present, Wang Jinghua and his Dailing Wildlife Protection Department are applying for the application of this technology in our city. Take root in the forest and engage in scientific research. I don't know if it will be useful to you after reading this article! I think electric shock is expensive, and the maintenance of batteries and batteries is more troublesome. It's best to set up fences or hunting clips or something!