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利用1978年MSS多光谱数据、2008年中国资源卫星数据、第二次全国土壤普查数据和2009年土壤野外试验数据,对黑龙江省土壤退化典型区域大庆地区的植被和土壤碳氮储量动态变化进行了预测。结果表明:大庆地区1978—2158年期间,植被碳储量逐渐增大,增加了5.12×106t;土地覆被土壤碳氮储量减少的幅度不断变小,分别减少了21.64×106t和28.10×105t;植被和土壤总碳储量减少的幅度不断变小,减少了16.52×106t。这种变化主要是由于土地退化以及耕地、林地的植被和土壤总碳量增加幅度比较大。
Based on the MSS multispectral data of 1978, the China Resources Satellite Data of 2008, the second national soil survey data and the 2009 field experiment data, the dynamic changes of vegetation and soil carbon and nitrogen in Daqing area, a typical area of soil degradation in Heilongjiang Province, were studied prediction. The results showed that during 1978-2158, the carbon storage of vegetation in Daqing area increased gradually, increasing by 5.12 × 106t. The decreasing extent of soil carbon and nitrogen storage in landcovering soil continued to decrease, decreasing by 21.64 × 106t and 28.10 × 105t respectively. Vegetation And the decrease of total carbon storage in soil kept decreasing, decreasing by 16.52 × 106t. This change is mainly due to the greater increase of land degradation and total carbon in cultivated land and woodland vegetation and soil.