[1]YANG Hui,ZHAO Yonghua,WANG Da,et al.Characteristics of Spatial Distribution of Cultivated Land Grade in Shaanxi Province[J].Research of Soil and Water Conservation,2020,27(03):271-276.
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Characteristics of Spatial Distribution of Cultivated Land Grade in Shaanxi Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
271-276
Column:
目次
Public date:
2020-04-20
- Title:
- Characteristics of Spatial Distribution of Cultivated Land Grade in Shaanxi Province
- Keywords:
- land use; cultivated land quality; classing index area; spatial distribution; Shaanxi Province
- CLC:
- F323.21
- DOI:
- -
- Abstract:
- In order to deeply understand the spatial pattern and distribution characteristics of cultivated land quality in Shaanxi Province, and to provide theoretical support for the protection of cultivated land quality, based on the results of county agricultural land classification in Shaanxi Province in 2016, we quantitatively analyzed the spatial distribution characteristics of cultivated land quality, and utilized ArcGIS 10.2 to express spatial data. The results showed that:(1)the average grade of cultivated land quality in Shaanxi Province was 11.33, which was generally low; the cultivated land mainly belonged to the moderate or lower classes, accounting for 82.70% of the cultivated land of the whole province;(2)the spatial differences of cultivated land quality in the whole province were obvious; the cultivated land quality in Guanzhong was the best, followed by southern Shaanxi, and the cultivated land quality in northern Shaanxi was the worst, and the average grades of cultivated land qualities in Guanzhong, southern Shaanxi and northern Shaanxi was 9.68, 11.28 and 13.34, respectively;(3)in terms of county scale, the cultivated land qualities of 48 counties were higher than the average level of the whole province, and the cultivated land qualities of 56 counties were lower than the average level of the whole province, differences of prominent spatial distribution were significant;(4)in the provincial classing index areas, cultivated land quality rank decreased in the order: Guanzhong—Weiheplain area>Low mountains and hills in southern Shaanxi>Qinba mountains in southern Shaanxi>Weibei loess upland area>Shangluo mountain hilly area>Loess hilly and gully region of northern Shaanxi>sandstorm along the Great Wall in northern Shaanxi; in the first-level index areas, the grade of cultivated land was consistent with the background elements of resources; the higher the multiple cropping was, the smaller the grade was; in general, the higher the altitude is, the lower the quality of cultivated land is.
- References:
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Last Update:
2020-04-30