基于生态系统服务价值的赤水河流域生态补偿标准核算
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国家重点研发计划项目(2016YFC0502300)、广西自然科学基金联合培育项目(2018JJA150135)、广西教育厅基金项目(ZD2014138)和广西创新驱动发展专项(AA18118038)


Ecological Compensation Standard Accounting of Chishui River Basin Based on Ecosystem Service Value
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    摘要:

    以赤水河流域2000、2010、2015年的气象数据、遥感数据、土壤类型、地质背景以及社会经济等数据为基础,采用固碳释氧模型、修正的通用土壤流失方程以及InVEST水源涵养模型定量评估了流域的生态系统服务价值总量,同时采用生态补偿计量模型计算了流域不同区域的生态补偿额度,确定了流域的补偿标准和生态补偿优先级别。结果表明:2000—2015年赤水河流域单位面积固碳释氧价值量、土壤保持价值量以及水源涵养价值量均呈先增加后减少倒“V”形结构。固碳释氧价值由2000年的4279.33元/(hm2·a)上升到2010年的4520.16元/(hm2·a),随后下降到2015年的4409.69元/(hm2·a);土壤保持价值量由2000年的95.11元/(hm2·a)上升到2010年的144.45元/(hm2·a),之后下降到2015年的89.03元/(hm2·a);水源涵养价值量由2000年的23938.13元/(hm2·a)上升到2010年的35232.99元/(hm2·a),之后下降到2015年的20167.41元/(hm2·a)。喀斯特地区固碳释氧价值总量增加的速度是非喀斯特地区的4.35倍,喀斯特地区土壤保持价值量和水源涵养价值量的下降速度分别是非喀斯特地区的1.28倍和1.59倍。流域多年平均生态补偿价值为4626.29元/(hm2·a),生态补偿价值总量为76.23亿元,流域下游补偿价值量最大,而上游地区补偿价值量较小。流域上游地区的喀斯特地区以及下游的原始森林地区属于典型的生态输出地区,应优先得到补偿,而经济发达的中游地区经济发展活跃,应率先进行生态支付,属于典型的生态消费区。本研究结果与以往的基于价值当量的生态补偿模型相比,在栅格像元尺度上量化了流域不同地区的生态补偿标准,可为长江上游赤水河流域生态补偿模式、运行机制以及补偿的标准提供科学依据。

    Abstract:

    Based on the meteorological data, remote sensing data, soil types, geological background and socio-economic data of Chishui River Basin in 2000, 2010 and 2015, the total value of ecosystem services in the basin was quantitatively assessed by carbon sequestration and oxygen release model, modified general soil loss equation (RUSLE) and InVEST water conservation model. At the same time, the ecological compensation quota of different regions in the basin was calculated by using the eco-compensation econometric model, and the compensation standard and priority of the basin were determined. The results indicated that from 2000 to 2015, the value of carbon sequestration and oxygen release per unit area, the value of soil conservation and value of water conservation in Chishui River Basin showed an inverted “V” structure. The value of carbon sequestration and oxygen release was increased from 4279.33 yuan/(hm2·a) in 2000 to 4520.16 yuan/(hm2·a) in 2010, and then decreased to 4409.69 yuan/(hm2·a) in 2015;the value of soil conservation was increased from 95.11 yuan/(hm2·a) in 2000 to 144.45 yuan/(hm2·a) in 2010, and then decreased to 89.03 yuan/(hm2·a) in 2015;and the value of water conservation was decreased from 23938.13 yuan/(hm2·a) in 2000 to 35232.99yuan/(hm2·a) in 2010, and then decreased to 20167.41 yuan/(hm2·a) in 2015. The total value of carbon sequestration and oxygen release in karst area was increased by 4.35 times as fast as that in non-karst area, while the value of soil conservation and water conservation in karst area was decreased by 1.28 and 1.59 times as fast as that in non-karst area, respectively. The value of ecological compensation per unit area was 4626.29 yuan/(hm2·a), and the average value of ecological compensation was 7.623 billion yuan. The value of compensation in the lower reaches of the basin was the largest, while that in the upper reaches was the smallest. The karst area in the upper reaches of the river basin and the primitive forest area in the lower reaches belonged to the typical ecological export area, which should be compensated first. The economically developed middle reaches of the river basin had active economic development level and should take the lead in ecological payment, which belonged to the typical ecological consumption area. Compared with the previous ecological compensation model based on value equivalence, the research quantified the ecological compensation standards of different areas in the basin on grid pixel scale, which can provide scientific basis for the ecological compensation model, operation mechanism and compensation standards of Chishui River Basin in the upper reaches of the Yangtze River.

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田义超,白晓永,黄远林,张强,陶进,张亚丽.基于生态系统服务价值的赤水河流域生态补偿标准核算[J].农业机械学报,2019,50(11):312-322.

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  • 收稿日期:2019-08-21
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  • 在线发布日期: 2019-11-10
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