中国县域尺度生态保护的地域分异及其适宜性

doi:10.11821/dlxb201707014

摘要/Abstract

摘要：

鉴于中国对生态保护的投入与奖惩皆以县域为基本单元,需要开展县域尺度生态保护效果的监测评估,以期为县域生态环境质量考核提供科学依据。本文定量分析了近15年县域尺度优良生态系统面积及植被覆盖度变化,及其与生态保护项目数量的关系,进而评估生态保护措施在县域生态变化中的效果,并评价工程措施的地域适宜性。结果表明：① 中国东北地区、南方亚热带区、青藏高原东南部的县域优良生态系统面积占比多高于50%,西北地区、西南喀斯特区、华北平原等县域优良生态系统占比多低于20%。② 近几十年,生态保护重点是生态脆弱区,青海三江源、藏东南、川西、祁连山、新疆南部等西部地区的县域生态保护项目数量多大于5个,东部沿海地区则少于或等于1个。③ 2000-2015年,中国53%县域的优良生态系统面积占比提高,黄土高原、黄淮海平原、京津冀、川黔渝、两广等地区的县域植被覆盖度明显上升,而新疆北部、西藏中部、内蒙古中东部等干旱半干旱区、长三角等区域植被覆盖度下降。④ 生态保护项目数量与优良生态系统、植被覆盖度变化等反映生态状况改善的指标并未呈现正相关关系,生态保护应遵循优良生态系统分布格局,气候变化背景下造林等工程措施应遵循自然规律与地带性差异。

关键词: 县域尺度, 生态保护, 优良生态系统, 地域分异, 地带适宜性, 中国

Abstract:

China's investments, financial incentives and deductions on ecological conservation are based on the county level. Therefore, the monitoring and assessment on the effects of ecological conservation at the county level is significant to provide a scientific basis to the ecological and environmental quality assessment of counties. This paper quantitatively estimated the dynamics of high-quality ecosystems and the vegetation coverage in the past 15 years, and examined its relationships with the number of ecological conservation programs at the county level. Then it assessed and discussed the effects of ecological conservation measures in county's ecological changes and its regional suitability. The results showed that the proportion of high quality ecosystems higher than 50% was primarily observed in counties of Northeast China, subtropical southern China and southeastern Qinghai-Tibet Plateau, and the proportion lower than 20% was mostly found in counties of Northwest China, karst region of Southwest China and the North China Plain. In recent decades, ecological conservation focused on ecological fragile regions, so there are more than five ecological conservation programs in most counties of the Three Rivers Source Region in Qinghai Province, southeastern Tibet, western Sichuan, Qilian Mountains, southern Xinjiang and other parts of Western China, while there is one or no one found in coastal eastern China. In the past 15 years, the area proportion of high-quality ecosystems in 53% of the counties has increased. The vegetation coverage of counties in the Loess Plateau, Huang-Huai-Hai Plain, Beijing-Tianjin-Hebei region, Sichuan-Guizhou-Chongqing, and Guangdong and Guangxi provincial units has increased significantly. However, it has decreased in northern Xinjiang, central Tibet, central and eastern Inner Mongolia, Yangtze River Delta and other parts of China. The relationships between the numbers of ecological conservation programs and the indicators responding ecosystem restoration such as high-quality ecosystem and vegetation coverage do not show positive correlations. It is recommended that ecological conservation projects should be planned and implemented according to the distribution of high-quality ecosystems, and the restoration measures such as afforestation should follow natural principles and regional variations under the background of climate change.

Key words: county level, ecological conservation, high-quality ecosystem, spatial variation, suitability assessment, China

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, 2017, 72(7): 1305-1315.

Lin HUANG, Yuhan ZHENG, Tong XIAO. Spatial variation pattern of ecological conservation and its zonal suitability at the county level in China[J]. Acta Geographica Sinica, 2017, 72(7): 1305-1315.

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参考文献 30

[1]	Fu Bojie.Trends and priority areas in ecosystem research of China. Geographical Research, 2010, 29(3): 383-396. doi: 10.11821/yj2010030001
	[傅伯杰. 我国生态系统研究的发展趋势与优先领域. 地理研究, 2010, 29(3): 383-396.] doi: 10.11821/yj2010030001
[2]	Liu J, Diamond J.China's environment in a globalizing world. Nature, 2005, 435(7046): 1179-1186. doi: 10.1038/4351179a pmid: 15988514
[3]	Liu Jiyuan, Kuang Wenhui, Zhang Zengxiang, et al.Spatiotemporal characteristics, patterns and causes of land use changes in China since the late 1980s. Acta Geographica Sinica, 2014, 69(1): 3-14. doi: 10.11821/dlxb201401001
	[刘纪远, 匡文慧, 张增祥, 等. 20 世纪 80 年代末以来中国土地利用变化的基本特征与空间格局. 地理学报, 2014, 69(1): 3-14.] doi: 10.11821/dlxb201401001
[4]	Zhang Yongmin, Zhao Shidong.The condition and trends of the world's ecosystems. Advances in Earth Science, 2007, 22(4): 403-409.
	[张永民, 赵士洞. 全球生态系统的状况与趋势. 地球科学进展, 2007, 22(4): 403-409.]
[5]	State Forestry Administration of the People's Republic of China. Development Report of the Three-North Shelter Forest System in the Past 30 Years (1978-2008). Beijing: China Forestry Publishing House, 2008.
	[国家林业局. 三北防护林体系建设30年发展报告(1978-2008). 北京: 中国林业出版社, 2008.]
[6]	State Forestry Administration of the People's Republic of China. National Report on Ecological Benefit of Grain for Green Program (2015). Beijing: China Forestry Publishing House, 2016.
	[国家林业局. 退耕还林工程生态效益监测国家报告(2015). 北京: 中国林业出版社, 2016.]
[7]	State Forestry Administration of the People's Republic of China. National Report on Ecological Benefit of Natural Forest Resources Protection Program in Key State-owned Forest Area in Northeastern China and Inner Mongolia (2015). Beijing: China Forestry Publishing House, 2016.
	[国家林业局. 天然林资源保护工程东北、内蒙古重点国有林区效益监测国家报告(2015). 北京: 中国林业出版社, 2016.]
[8]	Huang Lin, Cao Wei, Gong Guoli, et al.Spatial and temporal variations in ecosystems in the three northern regions of China, 2000-2010. Acta Ecologica Sinica, 2016, 36(1): 107-117.
	[黄麟, 曹巍, 巩国丽, 等. 2000-2010年中国三北地区生态系统时空变化特征. 生态学报, 2016, 36(1): 107-117.]
[9]	Li Shuangshuang, Yan Junping, Wan Jia.The spatial-temporal changes of vegetation restoration on Loess Plateau in Shaanxi-Gansu-Ningxia region. Acta Geographica Sinica, 2012, 67(7): 960-970. doi: 10.11821/xb201207009
	[李双双, 延军平, 万佳. 近10 年陕甘宁黄土高原区植被覆盖时空变化特征. 地理学报, 2012, 67(07): 960-970.] doi: 10.11821/xb201207009
[10]	Wang Lang, Fu Bojie, Lv Yihe, et al.Spatio-temporal variations of vegetation cover in northern Shaanxi Province under the background of ecological restoration. Chinese Journal of Applied Ecology, 2010, 21(8): 2109-2116.
	[王朗, 傅伯杰, 吕一河, 等. 生态恢复背景下陕北地区植被覆盖的时空变化. 应用生态学报, 2010, 21(8): 2109-2116.]
[11]	Shao Quanqin, Fan Jiangwen, Liu Jiyuan, et al.Assessment on the effects of the first-stage ecological conservation and restoration project in Sanjiangyuan region. Acta Geographica Sinica, 2016, 71(1): 3-34. doi: 10.11821/dlxb201601001
	[邵全琴, 樊江文, 刘纪远, 等. 三江源生态保护和建设一期工程生态成效评估. 地理学报, 2016, 71(1): 3-20.] doi: 10.11821/dlxb201601001
[12]	Shao Quanqin, Liu Jiyuan, Huang Lin, et al.Integrated assessment on the effectiveness of ecological conservation in Sanjiangyuan National Nature Reserve. Geographical Research, 2013, 32(9): 1645-1656. doi: 10.11821/dlyj201309007
	[邵全琴, 刘纪远, 黄麟, 等. 2005-2009年三江源自然保护区生态保护和建设工程生态成效综合评估. 地理研究, 2013, 32(9): 1645-1656.] doi: 10.11821/dlyj201309007
[13]	Liu Jiyuan, Xu Xinliang, Shao Quanqin.The spatial and temporal characteristics of grassland degradation in the Three- River Headwaters Region in Qinghai Province. Acta Geographica Sinica, 2008, 63(4): 364-376.
	[刘纪远, 徐新良, 邵全琴. 近30年来青海三江源地区草地退化的时空特征. 地理学报, 2008, 63(4): 364-376.]
[14]	Wang Tao, Wu Wei, Xue Xian, et al.Spatial-temporal changes of sandy desertified land during last 5 decades in Northern China. Acta Geographica Sinica, 2004, 59(2): 203-212.
	[王涛, 吴薇, 薛娴,等. 近50年来中国北方沙漠化土地的时空变化. 地理学报, 2004, 59(2): 203-212.]
[15]	Zhuo Li, Cao Xin, Chen Jin, et al.Assessment of grassland ecological restoration project in Xilin Gol grassland. Acta Geographica Sinica, 2007, 62(5): 471-480. doi: 10.3321/j.issn:0375-5444.2007.05.003
	[卓莉, 曹鑫, 陈晋, 等. 锡林郭勒草原生态恢复工程效果的评价. 地理学报, 2007, 62(5): 471-480.] doi: 10.3321/j.issn:0375-5444.2007.05.003
[16]	Wang S, Fu B, Piao S, et al.Reduced sediment transport in the Yellow River due to anthropogenic changes. Nature Geoscience, 2015, 9: 38-41. doi: 10.1038/ngeo2602
[17]	Deng L, Liu G B, Shangguan Z P.Land-use conversion and changing soil carbon stocks in China's 'Grain-for-Green' Program: A synthesis. Global Change Biology, 2014, 20(11): 3544-3556. doi: 10.1111/gcb.12508 pmid: 24357470
[18]	Wang Bing, Zhang Guanghui, Liu Guobin, et al.Ecological and environmental evaluation for water and soil loss comprehensive harness in loess hilly region. Transactions of the Chinese Society of Agricultural Engineering, 2012, 28(20): 150-161.
	[王兵, 张光辉, 刘国彬, 等. 黄土高原丘陵区水土流失综合治理生态环境效应评价. 农业工程学报, 2012, 28(20): 150-161.]
[19]	Ministry of Environmental Protection of the People's Republic of China. The 13th Five-year Plan Outline of National Ecological Protection. 2016.
	[环境保护部. 全国生态保护“十三五”规划纲要. 2016.]
[20]	Li Shidong, Zhai Hongbo.The comparison study on forestry ecological projects in the world. Acta Ecologica Sinica, 2002, 22(11): 1976-1982.
	[李世东, 翟洪波. 世界林业生态工程对比研究. 生态学报, 2002, 22(11): 1976-1982.]
[21]	Ministry of Environmental Protection of the People's Republic of China, Chinese Academy of Sciences. Investigation and Assessment of National Ecological Environment by Remote Sensing for Ten Years from 2000 to 2010. Beijing: Science Press, 2017.
	[环境保护部,中国科学院. 全国生态环境十年变化(2000-2010年)遥感调查与评估. 北京: 科学出版社, 2017.]
[22]	Liu Yansui, Liu Yu, Chen Yufu.Territorial multi-functionality evaluation and decision-making mechanism at county scale in China. Acta Geographica Sinica, 2011, 66(10): 1379-1389. doi: 10.11821/xb201110008
	[刘彦随, 刘玉, 陈玉福. 中国地域多功能性评价及其决策机制. 地理学报, 2011, 66(10): 1379-1389.] doi: 10.11821/xb201110008
[23]	Liu Haijiang, Zhang Jianhui, He Lihuan, et al.Analysis of the status and spatial distribution patterns of county-level eco-environmental quality of China. Environmental Monitoring of China, 2010, 26(6): 62-65. doi: 10.3969/j.issn.1002-6002.2010.06.017
	[刘海江, 张建辉, 何立环, 等. 我国县域尺度生态环境质量状况及空间格局分析. 中国环境监测, 2010, 26(6): 62-65.] doi: 10.3969/j.issn.1002-6002.2010.06.017
[24]	Liu Rui, Wang Shixin, Zhou Yi, et al.Ecological environment condition evaluation mode of county region based on remote sensing techniques. China Environmental Science, 2012, 32(1): 181-186.
	[刘瑞, 王世新, 周艺, 等. 基于遥感技术的县级区域环境质量评价模型研究. 中国环境科学, 2012, 32(1): 181-186.]
[25]	Li Guoping, Liu Qian, Zhang Wenbin.Transfer payment system in the national key ecological function area and the ecological environmental quality: Empirical study based on the countryside data of Shaanxi province. Journal of Xi'an Jiaotong University (Social Sciences), 2014, 34(2): 27-31. doi: 10.3969/j.issn.1008-245X.2014.02.004
	[李国平, 刘倩, 张文彬. 国家重点生态功能区转移支付与县域生态环境质量: 基于陕西省县级数据的实证研究. 西安交通大学学报(社会科学版), 2014, 34(2): 27-31.] doi: 10.3969/j.issn.1008-245X.2014.02.004
[26]	Ministry of Finance of the People's Republic of China. Notice on the issuance of The Transfer Payment Method for National Key Ecological Function Areas. 2011.
	[中华人民共和国财政部. 关于印发《国家重点生态功能区转移支付办法》的通知(财预[2011]428号). 2011.]
[27]	Allen RG, Pereira LS, Raes D et al. Crop evapotranspiration-guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56. Rome: United Nations Food and Agriculture Organization, 1998: 15-86.
[28]	Thornthwaite C.An approach toward a rational classification of climate. Geographical Review, 1948, 38(1): 55-94.
[29]	Yue T X, Zhao N, Ramsey R D et al. Climate change trend in China, with improved accuracy. Climatic Change, 2013, 120(1): 137-151.
[30]	Lü Y, Zhang L, Feng X et al. Recent ecological transitions in China: Greening, browning, and influential factors. Scientific Reports, 2015, 5(1): 8732.