無定河流域植被恢復變異診斷與風險評價

Diagnosis and Risk Assessment of Vegetation Restoration in Wuding River Basin

10.6937/TWC.201906_67(2).0008

賈路(LU JIA)；任宗萍(ZONG-PING REN)；李占斌(ZHAN-BIN LI)；徐國策(GUO-CE XU)；張譯心(YI-XIN ZHANG)；王斌(BIN WANG)

植被恢復 ； 分佈函數 ； 變異診斷 ； 風險評價 ； Vegetation restoration ； Distribution function ； Mutation diagnosis ； Risk assessment

台灣水利

67卷2期（2019 / 06 / 01）

67 - 74

繁體中文

植被作為陸地生態系統的重要組成部分，是聯繫地球表能量交換、水迴圈、碳迴圈、生物地球化學迴圈的重要紐帶。自從1999年以來，隨著中國植被恢復工程增加，區域植被覆蓋狀況有了顯著的變化。本研究利用Mann-Kendall趨勢檢驗法及Hurst指數、Pettitt檢驗法分析了2000-2013年來無定河植被恢復的變異特徵，並利用分佈函數評價了氣候變化和人類活動影響下，無定河流域植被恢復的風險狀況。結果表明：（1）無定河流域95.82%面積植被恢復呈持續改善；（2）無定河流域69.50%面積植被恢復在2004-2008年間發生顯著突變，凹突變面積占總突變面積99.85%；（3）無定河流域面積的54.29%植被覆蓋度最優理論分佈函數服從皮爾遜三型分佈PE3，流域89.85%面積年植被覆蓋度風險等級處於中度偏低狀態，植被恢復狀態比較良好，風險等級較低；（4）降水等氣候因素的變化與淤地壩等工程的建設對無定河流域植被恢復具有積極促進作用。研究成果有助於進一步深化對黃土高原地區植被恢復狀況及其影響因素的認識，為黃土高原植被恢復等生態建設工程提供一定的科學依據。

As an important part of the terrestrial ecosystem, vegetation is an important link between the energy exchange of the Earth's surface, the water cycle, the carbon cycle, and the biogeochemical cycle. Since 1999, with the increase of vegetation restoration projects in China, the regional vegetation coverage has changed significantly. In this study, Mann-Kendall trend test, Hurst index and Pettitt test were used to analyze the variation characteristics of vegetation restoration in Wuding River from 2000 to 2013, and the distribution function was used to evaluate the vegetation of Wuding River under the influence of climate change and human activities. The risk profile of recovery. The results showed that: (1) 95.82% of the vegetation restoration in the Wuding River Basin was continuously improved; (2) 69.50% of the vegetation restoration in the Wuding River Basin was significantly changed between 2004 and 2008, and the area of the concave mutation accounted for 99.85% of the total mutation area; (3) The optimal theoretical distribution function of 54.29% vegetation coverage in the area of the Wuding River Basin is in accordance with the Pearson type III distribution PE3. The risk level of the annual vegetation coverage of the 89.85% area is moderately low, and the vegetation restoration status is relatively good. The risk level is low; (4) Changes in climatic factors such as precipitation and construction of silt dams and other projects have positively promoted vegetation restoration in the Wuding River Basin. The research results will help to further deepen the understanding of vegetation restoration and its influencing factors in the Loess Plateau, and provide a scientific basis for ecological restoration projects such as vegetation restoration on the Loess Plateau.

1. Bai, Z.,Dent, D.(2009).Recent land degradation and improvement in China.AMBIO: J. Hum. Environ,38,150-156.
2. Fensholt, R.,Langanke, T.,Rasmussen, K.(2012).Greenness in semi-arid areas across the globe 1981-2007 – an earth observing satellite based analysis of trends and drivers.Remote Sensing of Environment,121(2),144-158.
3. Peng, J.,Liu, Z.H.,Liu, Y.H.,Wu, J.S.,Han, Y.N.(2012).Trend analysis of vegetation dynamics in QinghaiTibet Plateau using Hurst Exponent.Ecological Indicators,14(1),28-39.
4. Piao, S.L.,Wang, X.H.,Ciais, P.,Zhu, B.,Wang, T.,Liu, J.(2011).Changes in satellite-derived vegetation growth trend in temperate and boreal Eurasia from 1982 to 2006.Global Change Biol,17(10),3228-3239.
5. Sun, Y.Y.,Yang, Y.L.,Zhang, Y.,Wang, Z.L.(2015).The relative roles of climate variations and human activities in vegetation change in North China.Physics & Chemistry of the Earth Parts A/b/c,87-88,67-78.
6. Wang, Z.Q.,Zhang, Y.Z.,Yang, Y.,Zhou, W.,Gang, C.C.,Zhang, Y.,Li, J.L.,An, R.,Wang, K.,Odeh, I.,Qi, J.G.(2016).Quantitative assess the driving forces on the grassland degradation in the Qinghai-Tibet Plateau, in China.Ecological Indicators,33,32-44.
7. 李析男,謝平,李彬彬,張波(2014)。變化環境下不同等級乾旱事件發生概率的計算方法——以無定河流域為例。水利學報，45(5)，585-594。
8. 李恒凱,劉小生,李博,李發帥(2014)。紅壤區植被覆蓋變化及與地貌因數關係——以贛南地區為例。地理科學，2014(1)，103-109。
9. 李峰平,章光新,董李勤(2013)。氣候變化對水迴圈與水資源的影響研究綜述。地理科學，33(4)，457-464。
10. 李雙雙,延軍平,萬佳(2012)。近10年陝甘寧黃土高原區植被覆蓋時空變化特徵。地理學報，67(67)，98-108。
11. 胡良軍,張曉萍,楊勤科,李銳(2002)。黃土高原區域水土流失評價資料庫的建立。水利學報，33(1)，81-85。
12. 張鑫,蔡煥傑,尹曉楠(2010)。應用重標度極差分析法(R/S)分析無定河流域水沙變化。農業工程學報，26(S2)，212-217。
13. 許炯心(2004)。無定河流域侵蝕產沙過程對水土保持措施的回應。地理學報，59(6)，972-981。
14. 許炯心(2005)。黃土高原植被-降水關係的臨界現象及其在植被建設中的意義。生態學報，25(6)，1233-1239。
15. 陳占壽,喬愛芳(2014)。幾種水文序列變異點診斷方法的性能比較。青海師範大學學報(自科版)，2014(3)，1-5。
16. 章誕武,叢振濤,倪廣恒(2013)。基於中國氣象資料的趨勢檢驗方法對比分析。水科學進展，24(4)，490-496。
17. 楊媛媛,李占斌,任宗萍,高海東(2017)。人類活動對無定河流域不同地貌區水沙變化的影響。泥沙研究，42(5)，50-56。
18. 董磊華,熊立華,於坤霞,李帥(2012)。氣候變化與人類活動對水文影響的研究進展。水科學進展，23(2)，278-285。
19. 翟紹果,諶基東(2017)。共建美好生活的時代蘊意、內涵特質與實現路徑。西北大學學報：哲學社會科學版，47(6)，20-26。
20. 嚴恩萍,林輝,黨永峰,夏朝宗(2014)。2000-2012年京津風沙源治理區植被覆蓋時空演變特徵。生態學報，34(17)，5007-5020。