Abstract：[Background] Regionalization of soil and water conservation in Ningbo began in 2000. At that time, Ningbo was divided into three different regions of soil and water conservation: plains region of Center and North Ningbo,harbors and hills region of South-west Ningbo, and mountains region of West Ningbo,which has played a positive role to guide the soil and water conservation work in Ningbo. After more than 10 years of development, the regionalization based on topographical features of Ningbo cannot meet the demand of soil and water conservation work in the new era. In order to guide future period of soil and water conservation work in Ningbo, it is necessary to re-do the regionalization of soil and water conservation. [Methods] We applied overlay-analysis to re-divide the regions based on the third-level regionalization of soil and water conservation in China, combining natural conditions, water and soil erosion trends, social-economic development demand for soil and water conservation with the maps of terrain slope classification, annual rainfall distribution, current land use, forest resources distribution, city and urban development, land use regionalization, water resources project, ecological protection plan, and current soil erosion. [Results] We divided Ningbo City into 4 different regions as such: the farmland protection and water quality maintenance region of North Ningbo, the human habitat and water quality maintenance region of Center Ningbo, the soil conservation and water quality maintenance region of South-east Ningbo, and the water conservation and ecological protection region of West Ningbo. Moreover, the prevention and control strategies of water and soil erosion are proposed. [Conclusions] In the farmland protection and water quality maintenance region of North Ningbo, the protection of cultivated lands, garden lands, and woodlands with important ecological functions should be enhanced, and the mid- low-yield lands should be ameliorated to be high quality prime farmland, and the water quality of plain river networks should be improved. In the human habitat and water quality maintenance region of Center Ningbo, the management of waste soil and residue as well as waste mud treatment from city construction should be strengthened, the ecological corridors should be built, and the environment for human habitat and the water quality of river and lake should be better shaped. In the soil conservation and water quality maintenance region of South-east Ningbo, focus is on the improvement of low-quality forest and construction of coastal protection forest, and the efficiency of comprehensively utilizing the land should be increased by implementing the measures of soil conservation on economic forest lands. In the water conservation and ecological protection region of West Ningbo, focuses are on the measures of enclosing forestland and more afforestation in order to play full capacity of vegetation in silt detention, runoff regulation, water conservation, and control non-point pollution.
蓝雪春, 程岚. 宁波市水土保持区划研究[J]. 中国水土保持科学, 2017, 15(1): 141-147.
LAN Xuechun, CHENG Lan. Study on the regionalization of soil and water conservation in Ningbo City. SSWC, 2017, 15(1): 141-147.
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2017, Vol. 15 
