Forest restoration efforts drive changes in land-use/land-cover and water-related ecosystem services in China’s Han River basin
Forest restoration efforts drive changes in land-use/land-cover and water-related ecosystem services in China’s Han River basin
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森林恢复工作推动了中国汉江流域土地利用/土地覆盖和与水相关的生态系统服务的变化
DOI：
10.1016/j.ecoleng.2018.11.001
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发表时间：
2019
影响因子：
3.8
通讯作者：
Kerong Zhang
中科院分区：
文献类型：
--
作者：
Wenhua Qi;Hongran Li;Quanfa Zhang;Kerong Zhang
中国在2000年代开始实施世界上最雄心勃勃的植树造林和森林保护项目。然而，森林恢复工作是否有利于森林恢复，以及造林项目驱动的土地利用/土地覆盖（LULC）变化是否影响生态系统服务仍然知之甚少。在这里，我们调查了LULC和与水相关的生态系统服务的变化（即，利用InVEST（Integrated Valuation of Environmental Service and Tradeoffs）模型，对南水北调中线工程（Middle Route）的水源地--中国汉江流域的水产量、水净化和土壤保持进行了研究。我们的研究表明，森林恢复项目极大地促进了灌丛和农田转化为森林，这主导了LULC变化（LULCC），随后改善了水净化和土壤保持服务，但略有降低2000-2010年期间的产水量服务。在排除气候因素影响的情况下，LULCC减少了4.79 × 108 m3的产水量，相当于2000年产水量的0.69%。相比之下，LULCC显著改善了土壤保持服务，减少了1.72 × 107 t泥沙，即，2000年占沉积物输出量的12.8%。同时，LULCC减少了761.7t的氮负荷。2000 - 2010年，作为南水北调中线工程水源地的丹江口水库小流域氮负荷净减少302 t。2000-2010年，50个子流域中有40个子流域的氮负荷呈下降趋势，但有10个子流域的氮负荷呈上升趋势，包括仁河、老灌河、白河、刁河、酉水河、唐河、汉江、须水河、三甲河和丹河。这些地区应作为今后生态系统恢复和环境管理的重点。
China began implementing the world’s most ambitious afforestation and forest conservation projects in 2000s. However, whether the forest restoration efforts facilitate forest recovery, and whether the changes in land-use/land-cover (LULC) driven by afforestation projects affect ecosystem services remains poorly understood. Here, we investigated the changes in LULC and water-related ecosystem services (i.e., water yield, water purification, and soil conservation) using the InVEST (Integrated Valuation of Environmental Service and Tradeoffs) model in China’s Han River basin, the water source region of the South-to-North Water Transfer Project (Middle Route). Our study indicated that forest restoration projects greatly facilitated conversion of shrublands and croplands into forests, which dominated the LULC change (LULCC) and subsequently improved the water purification and soil conservation services but slightly decreased water yield services during 2000–2010. By excluding the influence of climatic factors, we found that 4.79 × 108m3of water yield were reduced by LULCC, which equals to 0.69% of water yield in 2000. In contrast, the LULCC improved soil conservation services markedly and reduced 1.72 × 107t sediment, i.e., 12.8% of sediment export in 2000. Meanwhile, 761.7 t nitrogen loading was cut down by the LULCC. The Danjiangkou Reservoir subwatershed, the water supply site for the water transfer project, showed a net decrease of 302 t nitrogen loading from 2000 to 2010. Although the nitrogen loading showed a decreasing trend in 40 out of 50 subwatersheds during 2000–2010, ten subwatersheds showed increasing trends, including the Ren River, Laoguan River, Bai River, Diao River, Youshui River, Tang River, Han River, Xushui River, Sanjia River, and Dan River. These regions should be taken as the priorities for ecosystem restoration and environmental management in the future.
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影响因子：
1.6
作者：
J. Berkoff
通讯作者：
J. Berkoff
DOI：
10.1016/j.scitotenv.2008.08.008
发表时间：
2008-11
期刊：
The Science of the total environment
影响因子：
--
作者：
Y. Zhu;Hongen Zhang;Lei Chen;Jing Zhao
通讯作者：
Y. Zhu;Hongen Zhang;Lei Chen;Jing Zhao
影响因子：
3
作者：
Quanfa Zhang;Zhifang Xu;Zehao Shen;Siyue Li;Shusen Wang
通讯作者：
Quanfa Zhang;Zhifang Xu;Zehao Shen;Siyue Li;Shusen Wang
影响因子：
11.6
作者：
Farley, KA;Jobbágy, EG;Jackson, RB
通讯作者：
Jackson, RB
DOI：
10.1201/9780203739266-12
发表时间：
2018
期刊：
Soil Quality and Soil Erosion
影响因子：
--
作者：
W. Elliot;D. Page-Dumroese;P. Robichaud
通讯作者：
W. Elliot;D. Page-Dumroese;P. Robichaud