JIA Lu,REN Zongping,LI Zhanbin,et al.Temporal and Spatial Evolution of Vegetation Coverage in Xi’an City from 2000 to 2013[J].Research of Soil and Water Conservation,2019,26(06):274-279.
2000-2013年西安市植被覆盖度时空演变
- Title:
- Temporal and Spatial Evolution of Vegetation Coverage in Xi’an City from 2000 to 2013
- Keywords:
- vegetation coverage; mutation; center of gravity transfer
- 分类号:
- Q948;TP75
- 摘要:
- 随着黄土高原地区退耕还林政策的实施，近十几年西安市植被覆盖情况变化发生了显著变化。为了对西安市植被覆盖变化进行深入的研究，利用Mann-Kendall趋势检验法及Hurst指数、Pettitt检验法分析了2000-2013年来西安市植被覆盖度变化特征，并利用重心转移模型和相对发展率分析了西安市植被覆盖度变化的空间变化差异。结果表明：（1）西安市植被覆盖度中等程度变异面积占总面积10.02%；（2）西安市植被覆盖度呈增加趋势的面积占区域总面积86.54%，具有正向持续性的面积占区域总面积72.62%，35.30%面积植被覆盖度呈持续改善；（3）西安市植被覆盖度突变年份均显著发生在2004年、2005年、2006年、2007年、2008年，发生显著突变年份的面积占总面积的17.58%；（4）西安市植被覆盖度相对发展率空间变化范围为-9.07~7.49，相对发展率的负值占区域总面积的20.77%，西安市植被覆盖度空间重心呈现由西南逐渐向东北方向转移的趋势；（5）西安市降雨量与植被覆盖度均值均呈现增加趋势，相关系数为0.47（p<0.09），空间分布重心呈现从东北向西南转移的趋势，与植被变化呈现相反的趋势。研究成果有助于进一步深化对西安市植被恢复状况及其影响因素的认识，为西安市植被恢复等生态建设工程提供一定的科学依据。
- Abstract:
- With the implementation of the policy of returning farmland to forestland in the Loess Plateau, the changes in vegetation coverage in Xi’an City have changed significantly in the past decade. In order to conduct in-depth research on the changes of vegetation coverage in Xi’an City, the Mann-Kendall trend test and Hurst index, Pettitt test were used to analyze the changes of vegetation coverage in Xi’an City from 2000 to 2013, and the spatial variation of vegetation coverage change in Xi’an City was analyzed by using the gravity transfer model and relative development rate difference. The results showed that:(1) the moderate variation area of vegetation coverage in Xi’an City accounted for 10.02% of the total area; (2) the area of vegetation coverage in Xi’an City increased by 86.54%, and the area of positive persistence accounted for 72.62% of the total area, vegetation coverage of 35.30% of area showed continuous improvement; (3) vegetation coverage mutation years of Xi’an City occurred significantly in 2004, 2005, 2006, 2007, and 2008, respectively, the area of significant mutation years accounted for 17.58% of the total area; (4) the spatial variation range of relative coverage rate of vegetation coverage in Xi’an City ranged from -9.07 to 7.49, and the negative value of relative development rate accounted for 20.77% of the total area; the trend of the center of gravity of vegetation coverage in Xi’an City gradually shifted from southwest to northeast; (5) the average rainfall and regional vegetation coverage in Xi’an City showed the increasing trend, the correlation coefficient was 0.47 (p<0.09), and the spatial distribution center of gravity showed a trend of shifting from northeast to southwest, which was opposite to the change of vegetation. These research results will help further deepen the understanding of the vegetation restoration status and its influencing factors in Xi’an City, and provide a scientific basis for the ecological construction projects such as vegetation restoration in Xi’an City.
参考文献/References:
[1] 胡良军,张晓萍,杨勤科,等.黄土高原区域水土流失评价数据库的建立[J].水利学报,2002,33(1):81-85.
[2] 翟绍果,谌基东.共建美好生活的时代蕴意、内涵特质与实现路径[J].西北大学学报:哲学社会科学版,2017,47(6):20-26.
[3] 李峰平,章光新,董李勤.气候变化对水循环与水资源的影响研究综述[J].地理科学,2013,33(4):457-464.
[4] 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[J].地理学报,2012,67(7):98-108.
[5] Carlson T N, Ripley D A. On the relation between NDVI, fractional vegetation cover, and leaf area index[J]. Remote Sensing of Environment, 1997,62(3):241-252.
[6] Lanfredi M, Simoniello T, Macchiato M. Comment on "Variations in northern vegetation activity inferred from satellite data of vegetation index during 1981 to 1999" by L. Zhou et al[J]. Journal of Geophysical Research:Atmospheres, 2003,108(D/12), DOI:10.1029/2002JD003046.
[7] Sun Y, Yang Y, Zhang L, et al. The relative roles of climate variations and human activities in vegetation change in North China[J]. Physics & Chemistry of the Earth, 2015, 87/88:67-78.
[8] Wang S, Fu B, Piao S, et al. Reduced sediment transport in the Yellow River due to anthropogenic changes[J]. Nature Geoscience, 2015,9(1):38-41.
[9] 李析男,谢平,李彬彬,等.变化环境下不同等级干旱事件发生概率的计算方法:以无定河流域为例[J].水利学报,2014,45(5):585-594.
[10] 章诞武,丛振涛,倪广恒.基于中国气象资料的趋势检验方法对比分析[J].水科学进展,2013,24(4):490-496.
[11] 严恩萍,林辉,党永峰,等.2000-2012年京津风沙源治理区植被覆盖时空演变特征[J].生态学报,2014,34(17):5007-5020.
[12] 陈占寿,乔爱芳.几种水文序列变异点诊断方法的性能比较[J].青海师范大学学报:自然科学版,2014(3):1-5.
[13] 毕燕,徐洪琼,陈乔.广西国内旅游规模区域差异分析[J].重庆师范大学学报:自然科学版,2012,29(4):118-123.
[14] 李巍.大兴安岭地区土壤侵蚀动态研究[D].哈尔滨:东北林业大学,2014.
[15] 许炯心.黄土高原植被-降水关系的临界现象及其在植被建设中的意义[J].生态学报,2005,25(6):1233-1239.
[16] 董磊华,熊立华,于坤霞,等.气候变化与人类活动对水文影响的研究进展[J].水科学进展,2012,23(2):278-285.
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备注/Memo
收稿日期:2018-11-29;改回日期:2019-01-20。
基金项目:西安市水利水土保持工作总站委托项目"西安市城市水土保持关键技术研究"（104-441118085）
作者简介:贾路(1994-),男,陕西西安人,硕士研究生,研究方向为水土资源保护与遥感。E-mail:XiaMuXingYi94@163.com
通讯作者:徐国策(1985-),男,河南洛阳人,博士,副教授,主要从事土壤侵蚀与水土保持研究。E-mail:xuguoce_x@163.com