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北票市大巴沟小流域治理效益评价

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本文以北票市大巴沟小流域为例,采用熵权法计算指标权重,并选用加权求和法综合评价小流域治理效益。结果表明,大巴沟小流域水保效益评价指数为50。586,从低到高准则层各指标评价指数排序为土地生产力、土壤养分、土壤水分、林草地生态恢复;2016-2017年实施的水保措施显著提高了流域内土地生产力,有效改善了林草地生态环境和土壤质地,该方法可以准确反映小流域治理实际情况,可为其他流域水土流失治理及其效益评价提供一种新的途径。
Evaluation of the Benefits of the Treatment of the Small Watershed of Dabagou in Beiqiao City
This article takes the Dabagou small watershed in Beipiao City as an example,uses the entropy weight method to calculate indicator weights,and uses the weighted sum method to comprehensively evaluate the benefits of small watershed governance.The results show that the evaluation index of water and soil conservation benefits in the Dabagou small watershed is 50.586,and the evaluation index of each indicator in the criterion layer from low to high is ranked as land productivity,soil nutrients,soil moisture,and forest and grassland ecological restoration;The water conservation measures implemented from 2016 to 2017 have significantly improved land productivity in the watershed,effectively improved the ecological environment and soil texture of forests and grasslands.This method can accurately reflect the actual situation of small watershed management and provide a new approach for soil erosion control and its benefit evaluation in other watersheds.

entropy weight methodindicator systembenefit evaluationDabagou small watershed

柳金库、李菲、丁宏宇、霍研

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辽宁省旱地农林研究所,辽宁朝阳 122000

熵权法 指标体系 效益评价 大巴沟小流域

2024

中国科技纵横
中国民营科技促进会

中国科技纵横

影响因子:0.102
ISSN:1671-2064
年,卷(期):2024.(3)
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