Spatiotemporal Changes of Sloping Farmland and Their Soil Conservation Effect at Source Area of Weihe River

Sun Xuwei; Jiang Yongbo; Wang Nailiang; Wang Yahui; Zhao Hongyan

doi:10.13961/j.cnki.stbctb.20230508.003

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Spatiotemporal Changes of Sloping Farmland and Their Soil Conservation Effect at Source Area of Weihe River

- Spatiotemporal Changes of Sloping Farmland and Their Soil Conservation Effect at Source Area of Weihe River
- Bulletin of Soiland Water Conservation Vol. 43, Issue 4, Pages: 405-412(2023)
- 作者机构：
  
  1. 甘肃省生态环境科学设计研究院,甘肃,兰州,730020
  2. 甘肃省黄河上游水源涵养区生态保护和修复工程研究中心,甘肃,兰州,730020
  3. 中国科学院西北生态环境资源研究院,甘肃,兰州,730000
  4. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20230508.003
  CLC： S157.1
- Published：2023
- 稿件说明：
移动端阅览
Sun Xuwei, Jiang Yongbo, Wang Nailiang, et al. Spatiotemporal Changes of Sloping Farmland and Their Soil Conservation Effect at Source Area of Weihe River[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 405-412.
DOI：

Sun Xuwei, Jiang Yongbo, Wang Nailiang, et al. Spatiotemporal Changes of Sloping Farmland and Their Soil Conservation Effect at Source Area of Weihe River[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 405-412. DOI： 10.13961/j.cnki.stbctb.20230508.003.

摘要

[目的

]

分析渭河源区不同等级坡耕地的时空变化，揭示不同坡耕地类型的土壤保持效应，探讨退耕还林还草工程对渭河源区坡耕地及土壤保持的影响，为完善不同坡耕地资源合理规划利用提供科学依据。[方法

]

利用1990，2000，2010和2020年4期渭河源区土地利用和地形数据，通过叠加分析、耕地动态度、土地利用转移矩阵和中国土壤流失方程等方法进行分析。[结果

]

①1990—2020年耕地呈先缓慢增加后急剧减少再缓慢减少的趋势，面积净减少321.03 km

，其中陡坡耕地和缓坡耕地是耕地变化主要类型。②近30 a来，耕地的时空变化主要表现为1990—2000年耕地少量转入，主要分布在漳县和岷县；随着退耕还林还草工程的实施，有279.80 km

的坡耕地转变为林草地，其中耕地转换为草地主要分布在通渭和陇西县，而耕地转换为林地主要分布在陇西和岷县。③1990—2000年渭河源区林草地开垦导致土壤保持量减少5.52×10

t，而2000—2020年退耕还林还草导致土壤保持量增加2.21×10

t，其中大于15°的坡耕地的转变对土壤保持量变化影响更大。[结论

]

渭河源区退耕还林还草工程成效显著，其中2000—2010年陡坡耕地的退耕面积最大，陡坡耕地退耕地土壤保持总体效应最大，但峭坡耕地退耕地单位效应最大。峭坡耕地仍有较大退耕空间，依旧是新一轮退耕任务的主要目标。

Abstract

[Objective] The spatiotemporal changes of different grades of sloping farmland

the soil conservation effects of different sloping farmland types

and the impact of returning farmland to forest or grassland on sloping farmland and soil conservation at the source area of Weihe River were studied in order to provide a scientific basis for the rational planning and utilization of different sloping farmland resources. [Methods] Land use and topographic data at the source area of Weihe River from 1990 to 2020 were analyzed by superposition analysis

farmland dynamic attitude

land use transfer matrix

and the Chinese soil loss equation. [Results] ① During 1990 to 2020

the area of cultivated land increased slowly

then decreased sharply

and then decreased slowly

with a net decrease of 321.03 km2. Steep slope cultivated land and gentle slope cultivated land were the main types of cultivated land change. ② The temporal and spatial changes of cultivated land were mainly characterized by a small increase in cultivated land from 1990 to 2000

mainly located in Zhangxian County and Minxian County. With the implementation of the grain for green project (GGP)

279.80 km2 of sloping land were transformed into forest and grassland

in which the conversion of cultivated land to grassland was mainly located in Tongwei and Longxi counties

while the conversion of cultivated land to forest land was mainly located in Longxi and Minxian counties. ③ The reclamation of forest and grassland at the source area of Weihe River from 1990 to 2000 reduced soil conservation by 5.52×104 t

while returning farmland to forest and grassland increased soil conservation by 2.21×106 t from 2000 to 2020. The transformation of sloping land with greater than 15° slope could affect changes in soil conservation. [Conclusion] The implementation of GGP has achieved remarkable results at the source area of Weihe River. The area of farmland conversion on steep slopes was the largest from 2000 to 2010. The soil conservation effect on steep slopes was the largest on abandoned land. Steeply sloping farmland will be the main target during the new round of returning farmland.

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references

杨萌,宋晓鹏,张岩,等.黄土高原丘一区典型流域坡耕地分布及其侵蚀地形特征[J].中国水土保持科学(中英文),2020,18(6):1-8.

蔺鹏飞,张晓萍,刘二佳,等.黄土高原典型流域水沙关系对退耕还林(草)的响应[J].水土保持学报,2015,29(1):1-6.

李小芳,王治国,张超,等.西北黄土高原区旱作梯田高质量发展思考[J].水利规划与设计,2022(4):16-19,99.

罗光杰,王世杰,李阳兵,等.岩溶地区坡耕地时空动态变化及其生态服务功能评估[J].农业工程学报,2014,30(11):233-243.

陈正发,史东梅,何伟,等.1980—2015年云南坡耕地资源时空分布及演变特征分析[J].农业工程学报,2019,35(15):256-265.

王祯,吴金华,白帅,等.延安市坡耕地资源时空变化及其土壤侵蚀效应[J].水土保持研究,2022,29(3):1-11.

Han Ze, Song Wei. Spatiotemporal variations in cropland abandonment in the Guizhou-Guangxi karst mountain area, China [J]. Journal of Cleaner Production, 2019,238:117888.

Di Baofeng, Yang Zhaotian, Liu Lei, et al. The regionalized ecological, economic and social benefit of China’s sloping cropland erosion control during the 12th five-year plan(2011—2015) [J]. Journal of Environmental Management, 2020,276:111314.

蒲金涌,张强.渭河上游气候因子变化特征及其与径流量的关系[J].水土保持通报,2013,33(3):95-99.

定西市人民政府.甘肃定西渭河源区水源涵养提升山水林田湖草沙一体化保护和修复工程实施方案[R].甘肃定西：定西市人民政府,2021.

赵婷婷,肖超,张方哲,等.甘肃渭河源区山水林田湖草生态环境问题与生态修复研究[J].矿产勘查,2020,11(12):2823-2827.

周添惠,杨磊,赵方凯,等.渭河源流域源汇景观演变对径流泥沙的影响[J].生态学报,2022,42(1):58-66.

吴炳方.中华人民共和国土地覆被地图集(1∶1000000)[M].北京:中国地图出版社,2017.

中华人民共和国国土资源部.第二次全国土地调查技术规程[R].北京：中华人民共和国国土资源部,2007.

刘宝元,毕小刚,符素华,等.北京土壤流失方程[M].北京:科学出版社,2010.

包玉斌,黄涛,吕林涛.陕北黄土高原实施退耕还林还草工程后的土壤保持效应[J].宁夏大学学报(自然科学版),2021,42(3):1-8.

中华人民共和国生态环境部.生态保护红线监管技术规范生态功能评价(试行)[R].北京：中华人民共和国生态环境部，2020.

刘宥延,刘兴元,张博,等.黄土高原丘陵区人工灌草生态系统水土保持功能评估[J].水土保持学报,2020,34(3):84-90,97.

国家林业和草原局.中国退耕还林还草二十年(1999—2019)[R].北京：国家林业和草原局,2020.

匡文慧,张树文,杜国明,等.2015—2020年中国土地利用变化遥感制图及时空特征分析[J].地理学报,2022,77(5):1056-1071.

谢怡凡,姚顺波,丁振民,等.退耕还林和地理特征对土壤侵蚀的关联影响:以陕西省107个县区为例[J].生态学报,2022,42(1):301-312.

Ding Zhenmin, Yao Shunbo. Ecological effectiveness of payment for ecosystem services to identify incentive priority areas: sloping land conversion program in China [J]. Land Use Policy, 2021,104:105350.

Qian Chen, Shao Liqun, Hou Xianhui, et al. Detection and attribution of vegetation greening trend across distinct local landscapes under China’s grain to green program: a case study in Shaanxi Province [J]. Catena, 2019,183:104182.

李军,王学春,邵明安,等.黄土高原半干旱和半湿润地区刺槐林地生物量与土壤干燥化效应的模拟[J].植物生态学报,2010,34(3):330-339.

吴兆喆.科学精准评估退耕还林还草工程生态效益[N].中国绿色时报,2022-07-01.

吴普侠,汪晓珍,吴建召,等.中国退耕还林工程固碳现状及固碳潜力估算[J].水土保持学报,2022,36(4):342-349.

李世东.世界著名生态工程:中国“退耕还林还草工程”[J].浙江林业,2021(8):9-11.

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