PDF Download

[1]SUN Yarong,BAI Yingfei,WANG Yajuan,et al.Analysis on the Implementation Effect of Returning Farmland to Forestland and Grassland in Various Districts and Counties of Yan'an City from 1999 to 2018[J].Research of Soil and Water Conservation,2023,30(01):209-215.[doi:10.13869/j.cnki.rswc.20220510.001]

Copy

Analysis on the Implementation Effect of Returning Farmland to Forestland and Grassland in Various Districts and Counties of Yan'an City from 1999 to 2018

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 01 Page number: 209-215 Column: Public date: 2023-01-10

Title:: Analysis on the Implementation Effect of Returning Farmland to Forestland and Grassland in Various Districts and Counties of Yan'an City from 1999 to 2018

Author(s):: SUN Yarong¹, BAI Yingfei³, WANG Yajuan¹, JING Xuedong⁴, ZHAO Min¹, WAN Xingxing⁵, CHEN Yunming^1,2; (1.Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; 3.Yan'an City Conversion of Cropland to Forestland Project Management Office, Yan'an, Shaanxi 716000, China; 4.Yan'an Forestry Bureau, Yan'an, Shaanxi 716000, China; 5.Yan'an Natural Forest Resources Protection Project Management Office, Yan'an......)

Keywords:: returning farmland to forestland and grassland; Yan'an City; implementation effectiveness; current problems

CLC:: S718.55

DOI:: 10.13869/j.cnki.rswc.20220510.001

Abstract:: To analyze the implementation effect of the ‘Returning Farmland to Forestland and Grassland' policy clearly in all districts and counties of Yan'an City, based on the statistical yearbook data, we analyzed the effect of vegetation restoration of the project of returning farmland to forestland(grassland)in Yan'an City from 1999 to 2018, and established a comprehensive development model suitable for the project of returning farmland to forestland(grassland)in Yan'an City in order to provide theoretical reference for the follow-up implementation. Based on the effectiveness of vegetation restoration in Yan'an City, we analyzed the area of conversion of farmland to forestland and grassland(returning farmland to forestland, closing hills for afforestation and afforestation), the proportion of trees, shrubs and grass, and the ecological economy, and comprehensive analyzed the forest and grass project implementation results and existing problems in Yan'an City. The results show that:(1)until 2018, Yan'an City had completed the conversion of farmland to forestland(grassland)with an area of 718 200 hm², which mainly concentrated in Wuqi County(137 800 hm²), Ansai County(94 800 hm²)and Zhidan County(90 400 hm²); the area of returning farmland to forestlan and grassland was the largest(441.8 thousand hm²), followed by barren mountain afforestation(260 200 hm²), and the area of closing hills for afforestation was the least(16 300 hm²);(2)the overall vegetation coverage in Yan'an City had increased significantly over time(p<0.01, R²=0.87), the higher vegetation coverage was found mainly in Huanglong County(90.5%), Huangling County(89.7%)and Fu County(86.7%), the vegetation coverage of Yanchuan County, Zichang County, and Wuqi County was the lowest, which was 68.7%, 68.3% and 66.7%, respectively;(3)the areas of arbor forest, shrub forest and herb forest were 468 100 hm², 250 100 hm² and 0.01 million hm², respectively; the ratios of arbor forest to shrub forest were 87:1 in Huanglong County, 39:1 inYanchuan County,(38:1 in Huangling County and 16:1 in Baota District, herbaceous plants only involved in Ganquan County, with an area of 0.01 million hm²;(4)the vegetation in the project of returning farmland to forestland and grassland was mainly acacia and shrubs Seabuckthorn; the areas of acacia and shrubs Seabuckthorn accounted for 34.43% and 20.70% of the total area of returning farmland to forestland and grassland, respectively; the ecological economic forests were apple and mountain apricot; the areas of apple and mountain apricot accounted for 2.96% and 4.42% of the total area of returning farmland to forestland and grassland, respectively;(5)the ratios of ecological forest to economic forest in Zichang County, Ansai District, Luochuan County the difference between and Zhidan County were the greatest, the ratios were 51:1, 27:1, 24:1 and 18:1 respectively. Combining the results, we put forward 3 pieces of suggestions for the follow-up development of returning farmland to foreslandt and grassland in Yan'an City. On the whole, the implementation of returning farmland to forestland and grassland in various districts and counties in Yan'an City had significantly promoted the local ecological environment, but the relevant departments should pay attention to further improvement of the vegetation coverage and the ratios among trees, shrubs and grasses and ecological economic forests, and strengthen the management of conversion of farmland to forestland and grassland.

References:: [1] 胡海清,罗碧珍,罗斯生,等.林火干扰对森林生态系统碳库的影响研究进展[J].林业科学,2020,56(4):160-169.
[2] 黄麟,郑瑜晗,肖桐.中国县域尺度生态保护的地域分异及其适宜性[J].地理学报,2018,28(1):46-58.
[3] 刘文超,刘纪远,匡文慧.陕北地区退耕还林还草工程土壤保护效应的时空特征[J].地理学报,2019,74(9):1835-1852.
[4] 刘胜涛,牛香,王兵,等.陕西省退耕还林工程生态效益评估[J].生态学报,2018,38(16):5759-5770.
[5] 李蕴琪,韩磊,朱会利,等.基于土地利用的延安市退耕还林前后生态服务价值变化[J].西北林学院学报,2020,35(1):203-211.
[6] 谢怡凡,姚顺波,邓元杰,等.延安市退耕还林(草)工程对生境质量时空格局的影响[J].中国生态农业学报,2020,28(4):575-586.
[7] 朱会利,杨改河,韩磊.延安市退耕过程植被覆盖度变化及其影响因子分析[J].农业机械学报,2015,46(8):272-280.
[8] 陈雅如,康慕谊,宋富强.延安市退耕还林前后土壤保持功能价值评估[J].北京林业大学学报,2013,35(6):67-73.
[9] 王森,王海燕,谢永生,等.延安市退耕还林前后土壤保持生态服务功能评价[J].水土保持研究,2019,26(1):280-286.
[10] 甘春英,王兮之,李保生,等.连江流域近18年来植被覆盖度变化分析[J].地理科学,2011,31(8):1019-1024.
[11] 游珍,李占斌,袁琼,等.干旱区植被覆盖度的建设阈值分析[J].水土保持研究,2005,12(3):88-90.
[12] 乔雨宁,董从国,黄敏,等.黄土高原不同植被带刺槐生态化学计量特征[J].水土保持研究,2020,27(4):31-38,46.
[13] 韩晓佳,王继军,赵晓翠,等.城市近郊型乡镇农业生态经济系统生态潜力及产业空间布局:以延安市河庄坪镇为例[J].生态学报,2021,41(12):4720-4731.
[14] 张军泽,陈锡云,岳辉,等.不同恢复模式下红壤区森林植被盖度变化的阈值效应分析[J].自然资源学报,2019,34(11):2403-2414.
[15] 索立柱.黄土高原不同空间尺度土壤水分动态变化影响因素分析与随机模拟[D].陕西杨凌:西北农林科技大学,2019.
[16] 王智慧,陈金磊,方晰.湘中丘陵地区4种植物群落的物种组成和数量特征[J].中南林业科技大学学报,2021,41(6):112-121.
[17] 秦伟,朱清科,刘中奇,等.黄土丘陵沟壑区退耕地植被自然演替系列及其植物物种多样性特征[J].干旱区研究,2008,25(4):507-513.
[18] 辛云玲,朱清科,罗舒元,等.陕北黄土区水土保持林林分空间结构特征[J].中国水土保持科学,2020,18(5):17-25.
[19] 赵维军,朱清科,李萍,等.陕北黄土区林分空间点格局分析[J].应用基础与工程科学学报,2014,22(2):216-226.
[20] 郭彪,王尚义,牛俊杰,等.晋西北不同植被类型土壤水分时空变化特征[J].水土保持通报,2015,35(1):267-273.
[21] 王青宁,王晗生,周景斌,等.植被作用下的土壤干化及其发生机制探讨[J].干旱地区农业研究,2004,22(4):163-167.
[22] 周晓光.国外经济林产业技术发展经验及启示[J].经济林研究,2020,38(4):246-252.
[23] 山仑.水土保持与可持续发展[J].中国科学院院刊,2012,27(3):346-351.
[24] 白明,布仁门德.基于可持续发展视角的生态林业建设对策[J].林产工业,2021,58(4):81-83.

Similar References:

Memo

Last Update: 2023-01-10