Geology: There are many exposed strata in Wansheng District, but they are all sedimentary rock series. Except Devonian, Carboniferous, Cretaceous and Tertiary, it developed to varying degrees from Cambrian to Quaternary. * * * There are 7 series, 3 1 stratigraphic unit. From east to west, the strata change from old to new. The exposed area of Paleozoic is 344.84 square kilometers, accounting for 60.95% of the area, and the exposed area of Mesozoic is 220.92 square kilometers, accounting for 39.05%. The geological structure in this area is the intersection of the eastern Sichuan fold belt and the Sichuan-Hubei-Hunan-Guizhou uplift fold belt, which can be roughly connected with Xiaozihe-Qingnian-Guanba, and the western edge of the Sichuan-Hubei-Hunan-Guizhou uplift fold belt is in the east. The west is the eastern edge of the eastern Sichuan fold belt, and the structure is relatively simple.
Landform: Wansheng District is a mountainous area connecting the southeast edge of Sichuan Basin and Yunnan-Guizhou Plateau, with high terrain in the east and low terrain in the west, and low Zhongshan landform in the east and south. The peak on the east side of Lion Grass in jing xing Township is1.973m above sea level, which is the highest point in the area. The western and central parts are low hills and flat dams with an altitude of 300- 1000 meters. The riverbed at the exit of Xiaozi River in Wentang Village of Nantong Town is 265 meters above sea level, which is the lowest point in the area. The northern part is flat and low mountain landform. Flat dams and platforms with an altitude of 300-600 meters in the whole region account for 7.49%; Hills of 300-700 meters account for 4.05%; 500- 1000m low mountains account for 66.54%; 1.000-1.973m low mountains19.34%; 800- 1200m mountain plain accounts for 2.58%.
Climate: Wansheng District is located in the humid subtropical monsoon climate zone, which has obvious three-dimensional climate characteristics with the difference of topography in the area. The elevation of Wansheng District is 3 10/0m, and the annual average temperature is 18.0℃. The peak on the east side of Lion Grass in jing xing Township in the east is1973m above sea level, and the annual average temperature is only 8℃. The coldest month in Wansheng is 65438+ 10, with an average temperature of 7.4℃. The hottest month is July, with an average temperature of 28. 1℃, an annual total accumulated temperature of 6596.9℃, an active accumulated temperature of 5869.6℃, a frost-free period of 339.2 days and an extreme maximum temperature of 4/kloc-0. The annual precipitation is Wansheng 13 12.7mm, and the eastern mountainous area1908.2 mm. Rainfall is concentrated in summer half year (5- 10, accounting for 76% of the annual precipitation) and winter half year (11-April).
Wansheng Stone Forest, the "ancestor of China Stone Forest"
Wansheng Stone Forest is located in shilin town, Wansheng District. It is a tourist attraction developed in advance since Wansheng District implemented the "tourism-driven" strategy. It is also the first batch of municipal scenic spots after Chongqing was directly under the central government. It has been rated as the "Top Ten" scenic spots in the city for two consecutive years, enjoying the reputation of "12 scenic spots in Bayu" and "the oldest stone forest in China". This is a rare tourist attraction.
Wansheng Stone Forest is a typical karst landscape. Its diagenetic age was about 460 million years ago, 200 million years earlier than that of Lunan Stone Forest in Yunnan. The total planned area is 20 square kilometers. The main landscapes are lake, lover's stone, beautiful lotus, incense burner scenery, thousand towers, fossil promenade, water stone forest, the world's first stone fan, ground fissure and so on. Its beautiful and spectacular Tianmen Cave complements the surface stone forest. The rich and simple Miao customs and graceful national songs and dances add interest to Shilin, which fully embodies the natural landscape and human landscape. People, animals and objects are all lifelike. Many rocks are densely covered with marine fossils from hundreds of millions of years ago, such as hornstones, graptolites and corals, which have great comprehensive tourism and scientific research value.
Wansheng District Party Committee and District Government attach great importance to the development and construction of Wansheng Stone Forest. Since the implementation of owner development in 1998, it has invested more than 50 million yuan to complete the construction of the first phase of the central scenic spot, the second phase of the in-depth development project, the hardening of the roads in the central scenic spot, oiling and the construction of some tourist reception service facilities. , and has a certain tourist reception capacity, successfully held eight sessions of "hiking up the mountain". Quot, it has a certain competitive advantage in the target tourist market (Chongqing's home city). From June 5th to February, 2002, the scenic spot was rated as the national "AAAA" scenic spot.
"Primitive Eco-tourism Area"-Black Valley
Black Valley Scenic Area, located in jing xing Township and shilin town, Wansheng District, covers an area of 100 square kilometers, and is 1 10 kilometers away from downtown Chongqing. It is an excellent place for canyon crossing, rafting sightseeing, rock climbing exploration, camping, fishing and hunting.
The natural landscape of the scenic spot is very rich, with mountains, water, springs, forests and caves, which are strange, dangerous, rigorous, beautiful and secluded. There are towering ancient trees with strange peaks and different rocks, as well as clear water gorges and head-on waterfalls; There are both ancient geological landforms and rare birds and animals. In spring, clear water and valleys, beautiful peaks and kingfishers make people linger; In summer, the forest covers the sky and makes people feel cool; In autumn, the forest is full of dye, and fat pheasants and rabbits run in it, making people in a fairyland; In winter, the snow is white and covered with silver makeup, which is pleasing to the eye. It's inaccessible here. It is the summer palace of the ancient Yelang King, with picturesque legends. Here the gorge is high and the valley is deep, and the blue waves are like jade. Walking through it, the gorge in the gorge, the valley in the valley, the hole in the cave and the waterfall on the waterfall are dazzling. There are many kinds of animals and plants here, including Taxodium ascendens and Davidia involucrata, as well as langurs and clouded leopards. It is a unique "biological gene bank" in Chongqing and is called "Southwest Shennongjia".
200 1, Chongqing power plant investment10.50 billion yuan. According to the requirements of "high starting point, high standard and high level", Black Valley Scenic Area was exclusively developed and officially opened for tourists on May 1 2002. In June 5438+February 2003, Black Valley Scenic Area was awarded the national "AAAA" level scenic spot.