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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:

2019年02期

Page:

184-190

Column:

研究简报

publishdate:

2019-03-30

Article Info:/Info

Title:

Assessing changes in forest coverage and forest fragmentation patterns in Yunnan Province from time series MODIS-VCF products(2000-2016)

Article ID:

1000-2006(2019)02-0184-07

Author(s):

ZHU Ruoning¹;  SHEN Wenjuan¹;  ZHANG Yali¹;  LI Mingshi¹; 2*

(1.College of Forestry, Nanjing Forestry University,Nanjing 210037,China; 2.Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037,China)

Keywords:

forest change;  forest fragmentation;  forest management;  biodiversity;  VCF(vegetation continuons fields)products;  Yunnan Province

Classification number :

S757

DOI:

10.3969/j.issn.1000-2006.201805001

Document Code:

A

Abstract:

【Objective】The main objective of this study was to assess the effectiveness of existing forest management policies implemented in Yunnan Province, and to learn or summarize experiences regarding the implementation of forest-related strategies by analyzing the changes in the spatio-temporal patterns of forest coverage and fragmentation in Yunnnan Province during 2000-2006.【Method】Using MODIS-vegetation continuous fields(VCF)product and its derivatives as the basic data source, with a spatial resolution of 250 m, a linear equation was fitted for each pixel on the basis of its variations in forest coverage rate against the time duration of 2000 to 2016. By exploring the slope and intercept of the fitted equation as well as the variance in forest coverage at that particular pixel, empirical thresholds were modified to classify this pixel into four types of forest coverage change, and a 3 × 3 moving window analysis technique was used to extract two indices within the window: forest area density and forest connectivity. Based on these two measures, in conjunction with the percolation theory, the central forest pixel within the window was classified into one of the six fragmentation components, namely, interior, perforation, edge, patch, transitional and undetermined. Finally, interconnections between forest fragmentation and biodiversity dynamics in the typical areas of Yunnan Province were qualitatively depicted. 【Result】During 2000-2016, the forest area in Yunnan Province tended to unstably increase, and the area of the forest coverage constant increasing type accounted for 30.57% of the total territory of Yunnan Province. In addition, the high forest coverage change type was principally distributed in southern and western Yunnan, and the low forest coverage change type was mainly concentrated in central, northern and eastern Yunnan. During the study period, the areal share of the interior forest increased from 50.03% in 2000 to 57.32% in 2006, with a slight decrease to 56.33% in 2011 and increase to 63.32% in 2016; however, the areal share of the perforation forest decreased from 29.41% in 2000 to 27.81% in 2006, with a slight increase to 28.36% in 2011 and decrease to 24.54% in 2016. Simultaneously, other components, including edge, patch and transitional fragmentation elements, showed a change trend similar to perforation, suggesting decelerated forest fragmentation in Yunnan Province during the period. 【Conclusion】Driven by various forestry policies, such as returning cropland to forest and reformation of collective forest tenures, the forest area in Yunnan Province, overall, tends to increase gradually, and the forest fragmentation level appears to have decelerated. However, across 2006 and 2011, a slight decrease in forest coverage, accompanied by increased forest fragmentation, was observed in Yunnan, which is consistent with a decrease in wildlife quantity and a more compact distribution of wildlife in some typical regions. These findings provide a valuable reference for forest management decisions and conservation biology studies.

References

[1] KEITH H, LINDENMAYER D, MACKEY B, et al. Managing temperate forests for carbon storage: impacts of logging versus forest protection on carbon stocks[J]. Ecosphere, 2014, 5(6): 75. DOI:10.1890/ES14-00051.1.
[2] HO P. Credibility of institutions: forestry, social conflict and titling in China[J]. Land Use Policy, 2006, 23(4): 588-603. DOI:10.1016/j.landusepol.2005.05.004.
[3] 刘代亿,曾琳,任仕伟,等. 云南森林自然中心森林资源现状分析与评价[J]. 林业调查规划,2017,42(1):80-84. DOI:10.3969/j. issn.1671-3168.2017.01.018.
LIU D Y, ZENG L, REN S W, et al. Analysis and evaluation of the forest resources status of Yunnan Forest Nature Center[J]. Forest Inventory and Planning,2017,42(1):80-84.
[4] 刘璨,张永亮,赵楠,等. 集体林权制度改革发展现状、问题及对策[J]. 林业经济, 2017(7): 3-14. DOI:10.13843/j.cnki.lyjj.2017.07.002.
LIU C, ZHANG Y L, ZHAO N, et al. The status, issues and countermeasures for the reform of collective forestland tenure system in China[J]. Forestry Economics,2017(7):3-22.
[5] 赵庭花.退耕还林现状及发展对策[J].农业工程,2017,7(6):69-71.
ZHAO T H. Present situation and development countermeasures of returning farmland to forest[J]. Agricultural Engineering,2017,7(6):69-71.
[6] 刘建锋, 肖文发, 江泽平, 等. 景观破碎化对生物多样性的影响[J]. 林业科学研究, 2005, 18(2):222-226.DOI:10.13275/j.cnki.lykxyj.2005.02.023.
LIU J F, XIAO W F, JIANG Z P, et al. Astudy on the influence of landscape fragmentation on diversity [J]. Forest Research, 2005, 18(2):222-226.
[7] LI M S,MAO L J, SHEN W J. Change and fragmentation trends of Zhanjiang mangrove forests in southern China using multi-temporal Landsat imagery(1977-2010)[J]. Estuarine Coastal Andc Shelf Science,2013,130:2013. DOI:10.1016/j.ecss.2013.03.023.
[8] 任芯雨, 吕莹莹, 李明诗. 基于景观镶嵌度指数的森林破碎化模式动态——以美国俄勒冈州为例[J]. 应用生态学报,2014,25(8):2317-2326. DOI:10.13287/j.1001-9332.20140530.004.
REN X Y, LYU Y Y, LI M S. Assessing dynamic patterns of forest fragmentation based on a landscape mosaic indicator: a case study of Oregon State,USA[J]. Chinese Journal of Applied Ecology,2014,25(8):2317-2326.
[9] REN X Y, LV Y Y, LI M S. Evaluating differences in forest fragmentation and restoration between western natural forests and southeastern plantation forests in the United States[J]. Journal of Environmental Management, 2017, 188:268-277. DOI:10.1016/j.jenvman.2016.11.068.
[10] 国家林业局.第八次全国森林资源清查结果[R].北京:国家林业局,2014.
[11] MONTESANO P M, NELSON R, SUN G. MODIS tree cover validation for the circumpolar taiga-tundra transition zone[J]. Remote Sensing of Environment, 2009,113(10):2130-2141. DOI:10.1016/j.rse.2009.05.021.
[12] AMARNATH G, BABAR S, URYHY M S R. Evaluating MODIS-vegetation continuous field products to assess tree cover change and forest fragmentation in India: a multi-scale satellite remote sensing approach[J]. The Egyptian Journal of Remote Sensing and Space Sciences,2017(5):158-168. DOI:10.1016/j.ejrs.2017.05.004.
[13] 孙飞,陈敏学,毛丽君,等.中国大陆省级尺度森林破碎化特征评价[J].西北农林科技大学学报(自然科学版),2011,39(1):43-51.DOI:10.13207/j.cnki.jnwafu.2011.01.025.
SUN F, CHEN M X, MAO L J, et al. Assessment of provincial-scale forest fragmentation in Chinese mainland[J]. Journal of Northwest Agriculture and Forestry University(Natural Science Edition), 2011,39(1): 43-51.
[14] 李瑶,肖向明,李香萍,等.中国森林破碎化多尺度评价[J].生物多样性,2017,25(4):372-381.DOI:10.17520/biods.2016257.
LI Y, XIAO X M, LI X P, et al. Multi-scale assessments of forest fragmentation in China[J].Biodiversity Science,2017,25(4):372-381.
[15] 王希群,李玉印,郭保香,等.云南四年大旱之后林业与生态建设问题的思考[J].林业经济,2013(6):51-53,69.DOI:10.13843/j.cnki.lyjj.2013.06.017.
WANG X Q, LI Y Y, GUO B X, et al. Analysis on forestry and ecological construction after three years of continuing drought in Yunnan[J]. Forestry Economics,2013(6):51-53,69.
[16] 高昆谊,朱慧贤.从区域性论云南省生物多样性保护[J].河北农业科学,2008(7):83-85.DOI:10.16318/j.cnki.hbnykx.2008.07.009.
GAO K Y, ZHU H X. Review on biologic diversity protection of Yunnan Province from the district characteristic[J]. Journal of Hebei Agricultural Sciences,2008(7):83-85.
[17] BERGSTROM R, SKARPE C. The abundance of large wild herbivores in a semi-arid savanna in relation to seasons,pans and livestock[J]. African Journal of Ecology,1999,37(1):12-26.
[18] 赵俊松,张建伟,柏梦焱,等.苍山野生动物时空分布动态[J].云南大学学报(自然科学版),2017,39(4):691-700. DOI:10.7540/j.ynu.20160315.
ZHAO J S, ZHANG W J, BO M Y, et al. Spatial and temporal distribution of wild animals in Cangshan[J]. Journal of Yunnan University(Natural Sciences Edition), 2017,39(4):691-700.
[19] 鲁德. 中国集体林权改革与森林可持续经营[D].北京:中国林业科学研究院,2011.
LU D. The property rights reform and sustainable management of collective-owned forests in China[D]. Beijing:Chinese Academy of Forestry Science,2011.
[20] 尹玉.云南省森林资源资产评估现状分析与思考[J].林业调查规划,2010,35(2):78-81. DOI:10.3969/j.issn.1671-3168.2010.02.020.
YIN Y. Analysis and reflection on status of forest resource assets' evaluation in Yunnan[J]. Forestry Inventory and Planning,2010,35(2):78-81.
[21] 杨劼. 云南省新一轮退耕还林向贫困地区倾斜[N]. 中国绿色时报,2016-10-31(001).
YANG J. A new round of returning the grain plots to forestry in Yunnan Province tilts to poverty-stricken areas[N]. China Green Times,2016-10-31(001).
[22] 吕亚强.云南省巩固退耕还林成果林业项目存在的问题与解决措施[J].绿色科技,2016(1):51-53.DOI:10.16663/j.cnki.lskj.2016.01.025.
LYU Y Q. Problems and solutions of consolidating achievements of return the grain plots to forestry in Yunnan Province[J]. Journal of Green Science and Technology,2016(1):51-53.
[23] 陈剑英,曾德贤.“森林云南”建设种苗发展问题及对策[J].林业资源管理,2014(6):24-27.DOI:10.13466/j.cnki.lyzygl.2014.06.006.
CHEN J Y,ZENG D X. Problems of seedling development and countermeasures in Yunnan forestry construction[J].Forest Resources Management,2014(6):24-27.
[24] 国家林业局.全国森林经营规划[R].北京:国家林业局,2016:4-5,48-49.
SFA. National forest management planning[R]. Beijing:State Forestry Administration,2016:4-5,48-49.
[25] 张鸿文,吴转颖,汪飞跃,等.云南省林业冰雪凌冻灾害特点及恢复重建对策建议[J].林业经济,2008(4):28-32.DOI:10.13843/j.cnki.lyjj.2008.04.005.
ZHANG H W, WU Z Y, WANG F Y, et al. Yunnan provincial forestry frozen snow disaster restoration features and reconstruction suggestions[J]. Forestry Economics,2008(4):28-32.
[26] 周桂华,杨子汉.2012年云南自然灾害综述与减灾措施探讨[J].灾害学,2013,28(4):132-138.
ZHOU G H, YANG Z H. Summary of natural disasters and discussion on disaster reduction measures in Yunnan in 2012 [J]. Journal of Catastrophology,2013,28(4):132-138.
[27] 柳艺博,王怀清,居为民. 干旱对江西省森林生产力的影响特征[J]. 自然灾害学报,2016,25(3):67-77. DOI:10.13577/j.jnd.2016.0308.
LIU Y B, WANG H Q, JU W M. Characteristics of drought effects on forest productivity in Jiangxi Province[J]. Journal of Natural Disasters, 2016, 25(3): 67-77.
[28] 李月辉,常禹,胡远满.人类活动对森林景观影响研究进展[J].林业科学,2006,42(9):119-126.DOI:10.3321/j.issn.1001-7488.2006.09.023.
LI Y H, CHANG Y, HU Y M. Research advance in effects of anthropogenic activity on forest landscape[J]. Scientia Silvae Sincae,2006,42(9):119-126.
[29] 朱映然. 云南省森林旅游资源可持续发展研究[D].昆明:云南农业大学,2016.
ZHU Y R. Forest tourism resource sustainable development research in Yunnan Province[D]. Kunming:Yunnan Agricultural University,2016.
[30] 孙飞. 基于3S技术的森林景观格局及破碎化变动评价[D].南京:南京林业大学,2012.
SUN F. Forest landscape pattern and fragmentation change assessment based on the “3S” technique[D].Nanjing:Nanjing Forestry University,2012.
[31] 魏莉莉,寇卫利,向兰兰,等.西双版纳热带森林景观破碎化地形差异性分析[J].西南林业大学学报(自然科学),2018,38(2):95-102.
WEI L L, KOU W L, XIANG L L, et al. Topographic difference analysis of tropical forest landscape fragmentation in Xishuangbanna[J]. Journal of Southwest Forestry University(Natural Science),2018,38(2):95-102.

Memo

Memo:

收稿日期:2018-05-01 修回日期:2018-09-06
基金项目:国家自然科学基金项目(31670552); 江苏省“青蓝工程”项目; 江苏高校品牌专业建设工程资助项目(PPZY2015A062)。
第一作者:朱若柠(526089620@qq.com)。
*通信作者:李明诗(nfulms@njfu.edu.cn),教授,博士,ORCID(0000-0001-5689-5091)。

Common functions

Last Update: 2019-03-30