文献类型： 外文期刊

作者： Song, Jian ¹ ; Wan, Shiqiang ¹ ; Zhang, Kesheng ² ; Hong, Songbai ³ ; Xia, Jianyang ⁴ ; Piao, Shilong ⁶ ; Wang, Ying-Ping ⁸ ; Cheni, Jiquan ⁹ ; Hui, Dafeng ¹⁰ ; Luo, Yiqi ¹¹ ; Niul, Shuli ¹² ; Ru, Jingyi ¹ ; Xu, Hao ⁶ ; Zheng, Mengmei ¹³ ; Liun, Weixing ¹⁴ ; Wang, Haidao ¹ ; Tan, Menghao ¹ ; Zhou, Zhenxing ¹ ; Feng, Jiayin ¹ ; Qiu, Xueli ¹ ;

作者机构： 1.Hebei Univ, Inst Life Sci & Green Dev, Hebei Basic Sci Ctr Biot Interact, Sch Life Sci, Baoding 071002, Hebei, Peoples R China

2.Luoyang Inst Sci & Technol, Luoyang 471023, Henan, Peoples R China

3.Peking Univ, Sch Urban Planning & Design, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China

4.East China Normal Univ, Sch Ecol & Environm Sci, State Key Lab Estuarine & Coastal Res, Zhejiang Tiantong Forest Ecosyst Natl Observat & R, Shanghai 200241, Peoples R China

5.East China Normal Univ, Inst Ecochongming, Res Ctr Global Change & Complex Ecosyst, Shanghai 200241, Peoples R China

6.Peking Univ, Inst Carbon Neutral, Sino French Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China

7.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resources, Beijing 100085, Peoples R China

8.Commonwealth Sci & Ind Res Org CSIRO Environm, Clayton, Vic 3169, Australia

9.Michigan State Univ, Ctr Global Change & Earth Observat, Dept Geog Environm & Spatial Sci, E Lansing, MI 48823 USA

10.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA

11.Cornell Univ, Coll Agr & Life Sci, Sch Integrat Plant Sci, Ithaca, NY 14850 USA

12.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Inst Geog Sci & Nat Resources Res, Beijing 100085, Peoples R China

13.Henan Normal Univ, Coll Life Sci, Xinxiang 453007, Henan, Peoples R China

14.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Agriinformat, Beijing, Peoples R China

关键词： carbon neutrality; climate solutions; plant productivity; soil carbon; soil erosion

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：9.1； 五年影响因子：10.6 ）

ISSN： 0027-8424

年卷期： 2024 年 121 卷 46 期

页码：

收录情况： SCI

摘要： Enhancing terrestrial carbon (C) stock through ecological restoration, one of the prominent approaches for natural climate solutions, is conventionally considered to be achieved through an ecological pathway, i.e., increased plant C uptake. By conducting a comprehensive regional survey of 4279 1 x 1 m2 plots at 517 sites across China's drylands and a 13- y manipulative experiment in a semiarid grassland within the same region, we show that greater soil and ecosystem C stocks in restored than degraded lands result predominantly from decreased surface soil C loss via suppressed wind erosion. This biophysical pathway is always overlooked in model evaluation of land- based C mitigation strategies. Surprisingly, stimulated plant growth plays a minor role in regulating C stocks under ecological restoration. In addition, the overall enhancement of C stocks in the restored lands increases with both initial degradation intensity and restoration duration. At the national scale, the rate of soil C accumulation (7.87 Tg C y-1) due to reduced wind erosion and surface soil C loss under dryland restoration is equal to 38.8% of afforestation and 56.2% of forest protection in China. Incorporating this unique but largely missed biophysical C- conserving mechanism into land surface models will greatly improve global assessments of the potential of land restoration for mitigating climate change.