Water quality monitoring in the Caohai Sea, Weining, Bijie

Weining Caohai, a lake at the headwaters of the Luoze River, upstream of the Hengjiang River, a tributary of the Yangtze River. Located in the middle of the Yunnan-Guizhou Plateau, west of Weining County, Guizhou Province. Standing water surface of 31 square kilometers, the water depth of up to 9 meters, the sea in the shape of a Buddha's hand, is the largest natural freshwater lake in Guizhou. Caohai is a typical karst lake formed by the influence of geological structure. It was originally a gentle hills between the basin, arable land concentration, densely populated, streams rely on the northern black rock cave along the cave elimination of water, Qing Xianfeng seven years in July (August 1857), obscene rain for the disaster, flash floods, hold wood folder sediment blocking elimination of water holes, north and south of the two seas into one, water into a lake, once called the Songpo Lake, after the lake because of the water in the grass is lush and known as the Grass Sea.

Caohai due to the long history of the lake, located in a special geographic location, sunshine, clean water, cool climate, water and heat conditions are superior, so biological resources are very rich. The “fine fish of Caohai” is famous both inside and outside the province. The number of birds in Caohai is large, and there are more than one hundred kinds of birds, among which there are eleven kinds of rare animals belonging to the first and second categories of national protection, such as black-necked cranes, white-headed cranes, white spoonbills, gray cranes, etc. In late spring and early summer, the area around Caohai is very rich in biological resources. At the end of spring and beginning of summer, the azaleas around the Sea of Grass compete with each other, adding a colorful picture to the Sea of Grass, which is an ideal resort for domestic and foreign people to investigate and study birds and travel to avoid the summer heat.

In order to protect such a beautiful Sea of Grass, Guizhou Institute of Engineering and Applied Technology and the Management Committee of the Sea of Grass have jointly introduced the multi-parameter water quality monitoring system of Dianjiang Technology, which continuously and scientifically monitors the dissolved oxygen, blue-green algae, chlorophyll, COD, PH, ORP, water temperature, conductivity, salinity, TDS, turbidity and other indexes in real time for the protection of the Sea of Grass, and has injected a force into the protection of the Sea of Grass.

Image and article credit: DIANJIANG TECH