XUE Xiaoyu,WANG Xiaoyun,DUAN Hanming,et al.Temporal and Spatial Changes of NPP and Its Causes in the Agricultural Pastoral Ecotone of Northern China[J].Research of Soil and Water Conservation,2021,28(02):190-197.
北方农牧交错带植被NPP的时空变化及其驱动因子分析
- Title:
- Temporal and Spatial Changes of NPP and Its Causes in the Agricultural Pastoral Ecotone of Northern China
- 文章编号:
- 1005-3409(2021)02-0190-08
- Keywords:
- agricultural pastoral ecotone of northern China; NPP; spatial change; climate change; human activities
- 分类号:
- Q948
- 文献标志码:
- A
- 摘要:
- 为了掌握北方农牧交错带植被NPP的多年时空变化特征,研究气候变化和人类活动对植被NPP的影响,基于VEGETATION-NDVI数据、气象数据及植被类型数据,采用CASA模型,对北方农牧交错带的植被NPP进行了估算,采用Theil-Sen Median趋势分析、偏相关分析、残差分析等方法分析了该地区NPP与气候因子及人类活动的关系。结果表明:1998—2016年研究区的NPP年均值空间上呈西南、东北高,中间低,研究区内NPP增加的区域明显大于NPP减少的区域; 年降水量呈东南高、西北低分布,而年平均气温分布呈南高北低、东高西低,在研究时段内,年降水量整体呈增加趋势,大部分地区的年平均气温也呈上升趋势; NPP与降水量之间存在正相关关系,与年平均气温具有明显的负相关关系; 气候变化和人类活动对植被影响的积极贡献明显大于对植被变化的消极作用,气候变化在植被恢复中占主导地位,人类活动是植被退化的主要因素。在北方农牧交错带植被NPP的主要影响因子是气候变化,降水的增多促进了植被的修复; 气温升高和人类活动增强导致了植被的退化,因此,减少人类活动和减缓气候变暖对于该地区植被的修复具有重要意义。
- Abstract:
- In order to grasp the characteristics of multi-year spatiotemporal changes of vegetation NPP in the agricultural pastoral ecotone of northern China(APENC), the effects of climate change and human activities on vegetation NPP were studied. Based on VEGETATION-NDVI data, meteorological data and vegetation type data, the CASA model was used to estimate the vegetation NPP in the agricultural pastoral ecotone of Northern China. The Theil-Sen Median trend analysis, partial correlation analysis, residual analysis and other methods were used to analyze the relationship between NPP and climate factors and human activities in this area. The following conclusions are drawn. The annual average value of NPP in the study area from 1998 to 2016 was spatially high in the southwest and northeast, and low in the middle. The increase in NPP in the study area was significantly larger than the decrease in NPP. The annual precipitation was high in the southeast and low in the northwest, while the annual average temperature was high in the south and low in the north, high in the east and low in the west. During the study period, the annual precipitation had an overall increasing trend, and the annual average temperature in most areas had also increasing trend. There was a positive correlation between NPP and precipitation, and an obvious negative correlation with annual average temperature. The positive contribution of climate change and human activities to vegetation was significantly greater than its negative effect. Climate change is dominant in vegetation restoration. Human activities are the main factor of vegetation degradation. The main influencing factor of vegetation NPP in the APENC is climate change. The increase in precipitation promotes the restoration of vegetation; the increase in temperature and the enhancement of human activities lead to the degradation of vegetation. Therefore, reducing human activities and slowing down climate warming are of great significance to the restoration of vegetation in this area.
参考文献/References:
[1] 杜金燊,于德永.气候变化和人类活动对中国北方农牧交错区草地净初级生产力的影响[J].北京师范大学学报:自然科学版,2018,54(3):365-372.
[2] 朴世龙,方精云,贺金生,等.中国草地植被生物量及其空间分布格局[J].植物生态学报,2004,28(4):491-498.
[3] 焦伟,陈亚宁,李稚.西北干旱区植被净初级生产力的遥感估算及时空差异原因[J].生态学杂志,2017,36(1):181-189.
[4] 杜梦洁,郑江华,任璇,等.地形对新疆昌吉州草地净初级生产力分布格局的影响[J].生态学报,2018,38(13):4789-4799.
[5] 孙睿,朱启疆.陆地植被净第一性生产力的研究[J].应用生态学报,1999,22(6):757-760.
[6] 王宗明,梁银丽.植被净第一性生产力模型研究进展[J].西北林学院学报,2002,17(2):22-25.
[7] 朱文泉,陈云浩,徐丹,等.陆地植被净初级生产力计算模型研究进展[J].生态学杂志,2005,24(3):296-300.
[8] 孙睿,朱启疆.中国陆地植被净第一性生产力及季节变化研究[J].地理学报,2000,55(1):36-45.
[9] 孙睿,朱启疆.气候变化对中国陆地植被净第一性生产力影响的初步研究[J].遥感学报,2001,5(1):58-61,83.
[10] 刘洁,孟宝平,葛静,等.基于CASA模型和MODIS数据的甘南草地NPP时空动态变化研究[J].草业学报,2019,28(6):19-32.
[11] 田惠文,毕如田,朱洪芬,等.汾河流域植被净初级生产力的驱动因素及梯度效应[J].生态学杂志,2019,38(10):3066-3074.
[12] 陈斌,王绍强,刘荣高,等.中国陆地生态系统NPP模拟及空间格局分析[J].资源科学,2007,29(6):45-53.
[13] 刘勇洪,权维俊,高燕虎.华北植被的净初级生产力研究及其时空格局分析[J].自然资源学报,2010,25(4):564-573.
[14] Luo Y, Wang X, Li F, et al. Responses of grass production to precipitation in a mid-latitude typical steppe watershed[J]. Transactions of the ASABE, 2014,57(6):1595-1610.
[15] 贾俊鹤,刘会玉,林振山.中国西北地区植被NPP多时间尺度变化及其对气候变化的响应[J].生态学报,2019,39(14):5058-5069.
[16] 王强,张廷斌,易桂花,等.横断山区2004—2014年植被NPP时空变化及其驱动因子[J].生态学报,2017,37(9):3084-3095.
[17] 刘洋洋,王倩,杨悦,等.黄土高原草地净初级生产力时空动态及其影响因素[J].应用生态学报,2019,30(7):2309-2319.
[18] 韩王亚,张超,曾源,等.2000—2015年拉萨河流域NPP时空变化及驱动因子[J].生态学报,2018,38(24):8787-8798.
[19] 赵晓,周文佐,田罗,等.土地利用变化对三峡库区重庆段植被净初级生产力的影响[J].生态学报,2018,38(21):7658-7668.
[20] 周妍妍,朱敏翔,郭晓娟,等.疏勒河流域气候变化和人类活动对植被NPP的相对影响评价[J].生态学报,2019,39(14):5127-5137.
[21] Wei B, Xie Y, Jia X, et al. Land use/land cover change and it's impacts on diurnal temperature range over the agricultural pastoral ecotone of Northern China[J]. Land Degradation & Development, 2018,29(9):3009-3020.
[22] 赵松乔.察北、察盟及锡盟:一个农牧过渡地区的经济地理调查[J].地理学报,1953,19(1):43-60.
[23] 赵哈林,赵学勇,张铜会,等.北方农牧交错带的地理界定及其生态问题[J].地球科学进展,2002,17(5):739-747.
[24] 刘志红, McVicar T R, Li L T,等. 基于ANUSPLIN的时间序列气象要素空间插值[J]. 西北农林科技大学学报:自然科学版, 2008,36(10):227-234.
[25] 朱文泉,潘耀忠,龙中华,等.基于GIS和RS的区域陆地植被NPP估算:以中国内蒙古为例[J].遥感学报,2005,9(3):300-307.
[26] 李萌萌.基于CASA模型的陕西省NPP反演及其与气象因子的关系[D].南京:南京信息工程大学,2015.
[27] Woodward F I, Smith T M, Emanuel W R. A global land primary productivity and phytogeography model[J]. Global Biogeochemical Cycles, 1995,9(4): 471-490.
[28] Hunt Jr E R, Piper S C, Nemani R, et al. Global net carbon exchange and intra-annual atmospheric CO2 concentrations predicted by an ecosystem process model and three-dimensional atmospheric transport model[J]. Global Biogeochemical Cycles,1996,10(3):431-456.
[29] 鲁晖.2000—2017年河西地区植被覆盖的时空过程分析[D].兰州:兰州大学,2019.
[30] 王丽霞,余东洋,刘招,等.渭河流域NDVI与气候因子时空变化及相关性研究[J].水土保持研究,2019,26(2):249-254.
[31] 郭继凯,吴秀芹,董贵华,等.基于MODIS/NDVI的塔里木河流域植被覆盖变化驱动因素相对作用分析[J].干旱区研究,2017,34(3):621-629.
相似文献/References:
[1]左小安,赵学勇,张铜会,等.中国北方农牧交错带植被动态研究进展[J].水土保持研究,2005,12(01):162.
ZUO Xiao-an,ZHAO Xue-yong,ZHANG Tong-hui,et al.Trends and Advances on Vegetation Dynamic Research in Transitional Zone of Pastures and Farmlands in North China[J].Research of Soil and Water Conservation,2005,12(02):162.
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[4]何宏昌,马炳鑫,靖娟利,等.近20年西南喀斯特地区植被NPP时空变化及自然因素地理探测[J].水土保持研究,2022,29(03):172.
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备注/Memo
收稿日期:2020-05-20 修回日期:2020-06-03
资助项目:国家自然科学基金重点项目“西北农牧交错带土地利用/覆被变化对地表水热过程的影响”(41530752)
第一作者:薛晓玉(1994—),女,河南商丘人,硕士研究生,研究方向为遥感与地理信息系统应用。E-mail:535382729@qq.com
通信作者:颉耀文(1969—),男,甘肃甘谷人,教授,主要从事地图学与环境遥感研究。E-mail:xieyw@lzu.edu.cn