Living environment and characteristics of kelp, red-crowned crane, cactus and changjin deer

There are many kinds of deer, and different kinds of deer have different requirements for living environment. Wild sika deer mostly live in mountainous areas and semi-mountainous areas with water sources. Lying in the daytime, ruminating, drinking water in the morning and evening, hot weather or autumn breeding season, I like swimming in the reservoir or taking a concrete bath in the mud pond. Be good at using the environment to hide yourself from natural enemies or hunters. Red deer mostly inhabit mixed forests or forests, mountains and grasslands, and feed according to the characteristics of seasons and diurnal changes. In spring and autumn, they feed on Mudang meadow and hide in the depths of the forest during the grass growing period. They also like water bath and mud bath. Water deer like to live in broad-leaved forests and mixed forests near the water. White-lipped deer live in snow-capped mountains or alpine forest belts and bushes at an altitude of 3500~5000m m.

white crane

Alias crane, belonging to crane family, scientific name is Grus japonensis. Large wading bird. The total length is about 120 cm. Almost all body feathers are pure white. There is some bright red above the head; The forehead and eyes are slightly Kuroha; The throat, cheeks and neck are mostly dark brown. The secondary and tertiary flight feathers are black, and bow after long-term bending. The tail feathers are short and white. The mouth is grayish green and the feet are grayish black. Habitat in swamps with reeds and other weeds. Eat the buds and seeds of aquatic plants, aquatic insects, mollusks and fish.

In the middle and late April, they began to nest and lay eggs in the dry grass on the shoal surrounded by water, and each nest produced 2 eggs. Male and female birds hatch eggs in turn, and the incubation period is 20 ~ 33 days. After the young birds learn to fly, in autumn, the red-crowned crane migrates from the northeast breeding ground to the south for winter. China has established a number of nature reserves such as Zhalong, Xianghai and Yancheng in the breeding areas and wintering areas of cranes such as red-crowned cranes. In Yancheng Nature Reserve, Jiangsu Province, there are more than 600 wintering red-crowned cranes at most a year, which is the largest known wintering habitat in the world.

Breeding in Nenjiang River, Songhua River and Wusuli River basins; Overwintering in the lower reaches of the Yangtze River and along the coast; He is a tourist bird in Hebei and Shandong, but he is occasionally seen in Taiwan Province Province.

Kelp is a kind of cold-water algae, which is naturally distributed in high-latitude sea areas and likes to grow in the sea areas where the tide is not urgent and the wind and waves are calm. The water quality is clear and fertile, and the water depth is about two meters. The suitable temperature range for kelp growth is 1- 18℃, and the water temperature is 5- 10℃. The smaller algae have stronger adaptability to high temperature, while the larger algae have stronger adaptability to low temperature. Kelp naturally grows in the shallow sea in northern China. Sporocysts appeared on the surface of leaves from August to September in Luda area, covering the middle of leaves. Sporangium usually matures in 6438+ 10 month. Kelp, which first naturally propagated and grew on the seabed near Yantai and Qingdao, Shandong Province, generally matured after September to produce sporangia. 15-20℃ is the optimum temperature for sporangium formation. Spore quilt will not form above 23℃. Now Fujian and Zhejiang in the south of China are also important kelp culture areas. The "mixed-blood" kelp, which comes from the affinity between the North and South kelp, has a bumper harvest in Nan 'ao, China! The reporter learned that the kelp broke the lowest record of the growth latitude of this variety in China. Kelp does not exist in Southeast Asian countries, because it can't survive at all!

Cactus is native to tropical and subtropical arid desert and semi-desert areas of America, so it is drought-resistant and barren-resistant, and its cuticle is waxy, which can prevent water evaporation. Cactus likes sunny, warm and humid environment. Suitable for growing in fertile, loose and well-drained sandy soil. It is most advantageous to grow at 30-40℃ during the day and at 15-25℃ at night. Because it is fleshy and afraid of cold, it is easy to die when the temperature is lower than 2℃. Cactus has strong habits, strong vitality and extensive management. If the family care of cactus can be sealed with plastic film, it will cause a high temperature and high humidity environment. The cactus grows fast, has bright colors and beautiful flowers.

Although cactus is sunny, it still needs proper shading in summer, especially for seedlings and smaller plants. In summer, direct sunlight should be avoided to avoid sunburn. In addition, it is necessary to prevent the attack of heavy rain to avoid decay. Other diseases and insect pests of cactus are few, and generally do not need special protection. Fertilization should be carried out properly.