Economic Loss Estimation of Soil Erosion in Water Source Area of Middle Route of South-to-North Water Transfer Project

ZHU Ming-yong; TAN Shu-duan; ZHANG Quan-fa

doi:10.13961/j.cnki.stbctb.2014.05.043

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Economic Loss Estimation of Soil Erosion in Water Source Area of Middle Route of South-to-North Water Transfer Project

- Economic Loss Estimation of Soil Erosion in Water Source Area of Middle Route of South-to-North Water Transfer Project
- Bulletin of Soiland Water Conservation Vol. 33, Issue 5, Pages: 190-195(2014)
- 作者机构：
  
  1. 闽南师范大学历史与社会学系,福建,漳州,363000
  2. 湖南农业大学生物科学技术学院,湖南,长沙,410128
  3. 中国科学院武汉植物园水生植物与流域生态重点实验室,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.05.043
  CLC：
- Published：2014
- 稿件说明：
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ZHU Ming-yong, TAN Shu-duan, ZHANG Quan-fa. Economic Loss Estimation of Soil Erosion in Water Source Area of Middle Route of South-to-North Water Transfer Project[J]. Bulletin of Soiland Water Conservation, 2014, 33(5): 190-195.
DOI：

ZHU Ming-yong, TAN Shu-duan, ZHANG Quan-fa. Economic Loss Estimation of Soil Erosion in Water Source Area of Middle Route of South-to-North Water Transfer Project[J]. Bulletin of Soiland Water Conservation, 2014, 33(5): 190-195. DOI： 10.13961/j.cnki.stbctb.2014.05.043.

摘要

在GIS的支持下

通过气象数据分析、实地调查、野外采样及室内分析、DEM计算、遥感解译等

构建了南水北调中线水源地丹江口水库库区流域地理信息数据库

并利用USLE估算了研究区的土壤侵蚀量。以1990年的价格为基准

利用市场价格法、机会成本法和影子工程法估算了水源区年均土壤侵蚀带来的经济损失。结果表明

水源区的年均土壤侵蚀模数为2394 t/(km

·a)。研究区表土流失造成的全氮、全磷、全钾和有机质损失量在分别换算成标准化肥磷酸二铵、氯化钾及薪柴后的经济损失分别为1.64×10

7.25×10

1.17×10

和2.97×10

元;年均侵蚀的土壤相当于61.94 km

的土地被废弃

经济损失为3.71×10

元。土壤侵蚀导致的涵养水分、泥沙淤积和泥沙滞留方面的经济损失分别为3.22×10

1.88×10

和1.95×10

元。水源区年均土壤侵蚀总经济损失达1.50×10

元

其中养分损失占96.11%。

Abstract

Based on the GIS

the geographic database was constructed through metrological data analysis

field survey

filed sampling and laboratory analysis

digital elevation model(DEM) calculation

remote sensing interpretation. The soil erosion amount in the Danjiangkou reservoir region was evaluated with the universal soil loss equation(USLE). The economic loss of annual soil erosion was evaluated(with constant price in 1990) by applying market value approach

opportunity cost method and shadow engineering price method. The results showed that the average annual soil erosion modulus was 2394 t/(km2·a). After converting the annual soil nutrient loss to standard chemical fertilizer(i.e. Diammonium phosphate and Potassium chloride) and fuel wood with some conversion coefficients

the corresponding economic loss of total N

total P

total K and soil organic matter were 1.64×108

7.25×107

1.17×107 and 2.97×107 yuan

respectively. The annual average soil erosion loss was almost euqual to 61.94 km2 land abandoned

and the economic loss was 3.71×107 yuan. The economic losses of water conservation decreased

silt retention and sediment deposition

which were caused by soil erosion. were 3.22×105

1.88×107 and 1.95×106 yuan respectively. Total annual economic loss of soil erosion in the area reached up to 1.50×109 yuan

in which the nutrient loss was accounting for 96.11%.

关键词

Keywords

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