Reservoir gentle slope regression zone land limited cultivation utilization method

A technology of ebb and flow zone and gentle slope is applied to the field of seasonal limited agricultural cultivation and utilization of soil bank in the gentle slope ebb and flow zone of a reservoir, which can solve the problems of aggravating soil erosion, affecting the stability of the bank bank, and deteriorating the water quality of the reservoir area. The effect of increasing agricultural output, reducing soil erosion, and reducing disturbance range

Inactive Publication Date: 2011-10-12
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Problems solved by technology

At present, the land resources in the water-fluctuation zone are mainly developed and utilized by farmers spontaneously, and the land exposed to the water surface during the land-forming period of the water-fluctuation zone is cultivated. However, traditional agricultural farming measures are not applicable to the agricultural use of land in the water-fluctuation zone of the reservoir, which will make the surface ( The soil in the alluvium layer) becomes loose, and its soil erosion may be intensi

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  • Reservoir gentle slope regression zone land limited cultivation utilization method
  • Reservoir gentle slope regression zone land limited cultivation utilization method

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[0017] The specific implementation of the present invention is further explained in conjunction with the construction of the land limited farming technology of the gentle slope water-level fluctuation zone of the Three Gorges Reservoir: Zhongxian County, Chongqing City is located in the central area of ​​the middle reaches of the Three Gorges Reservoir. The valleys are dense, terraces are well developed, and the water-leveling zone has a large land area. The land use before the formation of the reservoir is mainly cultivated land with better agricultural production conditions. In this embodiment, the soil water-fluctuating zone plot in the mainstream of the Yangtze River where the second group of Xinzheng Village, Shibao Town, Zhongxian County is located, is used as a paddy field before flooding, with thick soil layers and good agricultural production conditions. After the impoundment of the Three Gorges Reservoir, the local block gradually evolved into a slope. In this example...

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Abstract

The invention discloses a reservoir gentle slope regression zone land limited cultivation utilization method, which comprises the following steps of: a, selecting a regression zone land with a gentle slope and a thick soil layer in a period of reservoir level drop and in crop-planting seasons; b, determining sowing points of crops at certain intervals according to the growth requirement of crops intended to be planted, performing land preparation and loosening the soil at each sowing point, and keeping an original state in other places; c, dibbling the crops at each point after land preparation so as to form coexistence between the crops and plants; and d, after the crops are maturely harvested, keeping the original vegetation in the land. By combining farming rules of farmers, the method is easy and convenient to operate and convenient to implement, the destructiveness of the conventional common ploughing mode on soil can be effectively reduced, and the potential original vegetation in the regression zone is preserved; therefore, soil erosion on a soil reservoir bank of the regression zone is reduced.

Description

technical field [0001] The invention belongs to the technical field of eco-friendly utilization of land in a water-fluctuation zone of a reservoir, and in particular relates to a method for seasonally limited agricultural cultivation and utilization of soil banks in a gentle-slope water-fluctuation zone of a reservoir. Background technique [0002] The water-fluctuation zone is a special product formed by the construction and operation of the reservoir. The impoundment operation of the Three Gorges Project on the Yangtze River in my country will form a water-fluctuation zone with a water level fluctuation of 30m, a length of 600 kilometers, and an area of ​​348.93 square kilometers. The water-fluctuation zone of the Three Gorges Reservoir except the area east of Fengjie is a hard rock canyon-type river section, the river bank is Zhongshan Mountain, the bank slope is steep and mainly rocky reservoir bank, and the water-fluctuation zone to the west of Fengjie is mainly the orig...

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Application Information

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IPC IPC(8): A01G1/00
Inventor 贺秀斌鲍玉海唐强
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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