基于模糊综合评价法的小流域喀斯特石漠化治理综合效益评价——以贵州省普定县陈家寨小流域为例

发布时间：2018-05-17 21:40

本文选题：石漠化 + 综合治理　；参考：《中国岩溶》2016年05期

【摘要】：通过建立石漠化综合治理效益的评价指标体系,采集研究区治理前后环境、经济、社会等各项指标数据,运用模糊综合评价法对贵州省普定县陈家寨小流域综合治理效益进行了评价。研究结果表明:经过综合治理,研究区社会、经济得到了发展,生态环境明显改善。由于在洼地沟谷地带发展高效山地农业,种植辣椒、秋葵、何首乌、半夏、丹参等经济作物,人均收入和劳动生产率大幅提升,资金产投比和土地生产率提升明显,农产品商品率有所增加。通过对研究区山地坡面开展林分改造,林草覆盖率有所提高,土壤侵蚀模数和石漠化面积比例减少,贫困发生率、农村恩格尔系数和文盲率有所下降。研究区综合治理之后,经济效益评价等级由"差"变成了"中",生态效益由"差"变成了"良",社会效益仍然处于"差",综合效益评价由"差"到"中",其中经济效益增幅最大,这主要得益于小流域内利用道路积蓄雨水、修建集水池等抗旱设施,有效地解决了研究区的灌溉问题。
[Abstract]:By establishing the evaluation index system of the comprehensive control benefit of rocky desertification, the environmental, economic, social and other index data of the study area before and after treatment are collected. The comprehensive management benefits of Chenjiazhai small watershed in Puding County of Guizhou Province were evaluated by fuzzy comprehensive evaluation method. The results show that the society and economy of the study area have been developed and the ecological environment has been improved obviously through comprehensive management. As a result of the development of efficient mountain agriculture in low-lying gully areas, the cultivation of cash crops such as chili, okra, Polygonum multiflorum, Pinellia ternata and Salvia miltiorrhiza, the per capita income and labour productivity have increased significantly, and the ratio of capital to investment and land productivity has increased significantly. The commodity rate of agricultural products has increased. The forest and grass coverage was increased, the soil erosion modulus and the proportion of rocky desertification area decreased, the incidence of poverty, the rural Engel coefficient and the illiteracy rate were decreased. After comprehensive management of the research area, The grade of economic benefit evaluation has changed from "bad" to "medium", the ecological benefit has changed from "poor" to "good", the social benefit is still in "poor", and the comprehensive benefit evaluation is from "poor" to "medium", in which the increase of economic benefit is the largest. This is mainly due to the use of road Rain Water in the small watershed and the construction of water catchments and other drought fighting facilities, which effectively solve the irrigation problem in the study area.
【作者单位】：贵州财经大学经济学院;中国科学院普定喀斯特生态系统观测研究站;中国科学院地球化学研究所环境地球化学国家重点实验室;
【基金】：国家重点研发计划(2016YFC0502300) 国家自然科学基金项目(41203063) 中国科学院战略性先导科技专项重大课题(XDA05070400)
【分类号】：X171.4

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