沙漠化逆转过程中榆林市植被净初级生产力时空格局及其影响因素

冯筱, 屈建军, 丁新辉, 田琴, 范庆斌

Temporal and spatial pattern of NPP in Yulin and its influencing factors during the desertification reversal

Xiao Feng, Jianjun Qu, Xinhui Ding, Qin Tian, Qingbin Fan

表3 2000—2020年榆林西部毛乌素沙地植被 NPP(g·m-2·a-1)年际变化

Table 3 Interannual variation of NPP (g·m-2·a-1) in the Mu Us Sandy Land in Yulin from 2000 to 2020

年份 定边县 榆阳区 横山区 神木市 靖边县 平均值 2000 155.99 166.94 138.23 179.51 180.76 164.29 2001 196.65 192.57 194.26 183.32 212.27 195.81 2002 265.32 236.56 266.51 256.00 273.78 259.63 2003 263.87 249.66 260.09 274.56 282.51 266.14 2004 246.83 247.61 272.25 272.16 295.43 266.86 2005 219.47 226.62 238.10 258.94 267.55 242.14 2006 226.06 234.75 238.20 269.11 279.43 249.51 2007 229.67 264.74 278.45 311.49 287.82 274.43 2008 224.26 273.87 287.41 319.65 293.03 279.64 2009 264.70 272.98 306.45 329.32 329.44 300.58 2010 284.91 288.90 318.69 341.15 332.38 313.21 2011 263.13 285.81 330.10 326.98 341.84 309.57 2012 344.18 337.35 414.04 386.84 404.86 377.45 2013 307.37 343.34 410.23 420.75 396.74 375.69 2014 319.26 338.50 396.27 419.70 406.30 376.01 2015 254.76 315.49 309.39 362.75 324.92 313.46 2016 305.80 346.67 385.59 431.36 371.04 368.09 2017 331.68 380.62 409.23 467.90 418.39 401.56 2018 387.26 388.71 454.57 450.90 446.32 425.55 2019 354.14 388.26 402.37 467.85 414.74 405.47 2020 303.42 373.17 394.42 442.37 407.63 384.20