汉中市水域生态承载力的研究与分析

发布时间：2018-11-12 14:02

【摘要】：为分析汉中市水域承载力的变化,反映水域利用的安全程度,以寻求提高水域承载力的途径与方法,对汉中市水域生态承载力进行了计算和分析。结果表明:从2001—2013年,汉中市水域生态承载力整体处于安全状态,汉台区的生态承载力指数为0.56,处于基本安全状态,其余各县的生态承载力指数均小于0.50,处于安全状态。其中,宁强、略阳、镇巴、留坝、佛坪5个县的生态承载力指数小于0.10,洋县、西乡、勉县3个县的生态承载力指数在0.20~0.30,南郑县的生态承载力指数在0.30~0.40,城固县的生态承载力指数在0.40~0.50。但是出现生态压力增加、生态承载力下降、安全程度逐渐降低等趋势,建议相关部门下一步需做好渔业生产规划,加强水源地生态环境保护治理和加强水域管理监测等措施来提高水域生态承载力。
[Abstract]:In order to analyze the change of water bearing capacity in Hanzhong City and reflect the safety degree of water area utilization, the ecological carrying capacity of water area in Hanzhong City was calculated and analyzed in order to seek ways and methods to improve the carrying capacity of water area. The results showed that from 2001 to 2013, the ecological carrying capacity of Hanzhong City was in a safe state as a whole, and the ecological carrying capacity index of Hantai was 0.56, which was basically safe, and the ecological carrying capacity index of other counties was less than 0.50. In a safe state. The ecological carrying capacity index of Ningqiang, Luoyang, Zhenba, Liuba and Foping counties is less than 0.10, and the ecological carrying capacity index of Yangxian County, Xixiang County and Mian County is 0.20 ~ 0.30. The ecological carrying capacity index of Nanzheng County is 0.30g 0.40, and that of Chenggu County is 0.400.50. However, the ecological pressure is increasing, the ecological carrying capacity is decreasing, and the degree of safety is gradually decreasing. It is suggested that the relevant departments should do a good job in the planning of fishery production in the next step. To enhance the ecological carrying capacity of water area, we should strengthen the ecological environment protection and control of the water source and strengthen the water area management and monitoring.
【作者单位】：杨凌职业技术学院;长安大学地球科学与资源学院;陕西省第三测绘工程院;
【基金】：“十二五”国家科技支撑计划项目“农田水土保持关键技术研究与示范”(2011BAD31B01)
【分类号】：TV213.4;X143

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