[1]WEN Qian,SUN Jiangtao,FAN Liyao,et al.Evaluation of Agricultural Soil-Water Resources Carrying Capacity(ASWCC)and Relation Analysis Based on Entropy Weight TOPSIS in Henan Province[J].Research of Soil and Water Conservation,2022,29(01):333-338.
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Evaluation of Agricultural Soil-Water Resources Carrying Capacity(ASWCC)and Relation Analysis Based on Entropy Weight TOPSIS in Henan Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 01
Page number:
333-338
Column:
Public date:
2022-02-20
- Title:
- Evaluation of Agricultural Soil-Water Resources Carrying Capacity(ASWCC)and Relation Analysis Based on Entropy Weight TOPSIS in Henan Province
- Keywords:
- agricultural soil-water resources; carrying capacity; TOPSIS; spatial-temporal differentiation; relation analysis
- CLC:
- F326.1
- DOI:
- -
- Abstract:
- Global food production is facing enormous challenges, as one of the major agricultural provinces in China, the agricultural soil-water carrying capacity(ASWCC)in Henan Province is closely related to national food security. To provide support and reference for the sustainable development of agriculture in Henan, we took the entropy weight method and TOPSIS model to analyze the spatial and temporal changes of the ASWCC in Henan Province. The results showed that:(1)from 2006 to 2018, the average value of Henan's ASWCC index was 0.266, and the overall level of carrying capacity showed the upward trend and fluctuated greatly; the highest value was nearly 1.26 times of the lowest value in terms of ASWCC; the most carrying capacity value was at the stable level except for 2018, the annual increasing rates of ASWCC in Puyang, Jiaozuo and Hebi were higner than 9%, and the ASWCC in Xinyang, Zhumadian decreased rapidly with annual decreasing rates of 8.49% and 2.77%;(2)during the study period, the distribution presented that the ASWCC decreased in the order: northern Henan>southern Henan>east Henan>western Henan; ASWCC in Zhengzhou, Xinyang, Xinxiang, Shangqiu and Xuchang were relatively high, while ASWCC in Luohe, Pingdingshan, and Kaifeng were relatively low; during the study period, the ASWCC in southern Henan was declineding, and the ASWCC in northern and eastern Henan had gotten better and higher;(3)relation analysis showed that the ASWCC was strongly affected by the proportion of crop disaster area(C9), the investment ratio of agricultural and forestry water conservancy projects(C11), the wastewater treatment rate(C6), and the matching coefficient of agricultural water and land resources(C1). In order to improve and maintain the stability of food production level, agricultural disaster resistance and increase of the investment in agriculture and environmental protection in Henan should be strengthened.
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Last Update:
2022-02-20