Study on planting pattern zoning in Heilongjiang Province
The reasonable construction of planting pattern zoning in Heilongjiang Province is of great significance for optimizing the farming system,promoting the high-quality development of agriculture,and advancing the protection of black soil.Based on the geomorphological information mapping to identify the type of planting pattern,four indicators,namely,average temperature during crop fertility,average humidity index during crop fertility,geomorphology type,and planting pattern,were selected to construct the zoning index system,taking county-level geographical unit as the basic unit of zoning,and adopting two quantitative zoning methods,namely,cluster analysis and superposition,to formulate the zoning program of planting pattern in Heilongjiang Province.The results showed that the planting pattern in Heilongjiang Province could be divided into five types:corn continuous cropping,rice continuous cropping,soybean continuous cropping,rice-bean rotational cropping,and mixed pattern,with the area share of 27.91%,23.11%,10.40%,21.50%,and 17.08%,respectively,and the spatial differentiation characteristics were significant.The types of planting pattern structures of county-level geographical units in Heilongjiang Province were diverse and could be categorized into 14 types.Among them,the single type of planting pattern structure was the main type,and the proportion of the single type of planting pattern structure and the mixed type of planting pattern structure was 69.84%and 30.16%,respectively.Heilongjiang Province was divided into eight planting pattern zones,and each zone showed regional differences in planting pattern due to the differences in water and heat conditions and geomorphological conditions;meanwhile,corresponding suggestions and countermeasures were put forward for the problems existing in each zone.
NETL
NSTL
万方数据
