OALib Journal期刊
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基于遥感信息的道孚县亚高山森林植被地上碳储量估算及其空间分布特征
DOI: 10.3724/SP.J.1145.2013.00593, PP. 593-597
Keywords: 川西亚高山森林,遥感,森林植被碳储量,空间分布
Abstract:
遥感技术是估测区域森林植被生物量的有效手段之一.本研究应用2007年9月tm影像数据,结合森林地上生物量实测数据,建立了研究区道孚县木茹林场森林植被地上部分碳储量模型.结果表明研究区森林植被总碳储量为1.73tgc,其中亚高山针叶林、阔叶林和灌木林碳储量分别为1.26、0.11和0.36tgc,针叶林占总碳储量的72.83%,是该区域的最大森林植被碳库.研究区域森林植被碳储量随海拔变化表现为以海拔3400-3800m为中心向两极递减,随坡度变化表现为陡坡>斜坡>急坡>缓坡>平坡>险坡,随坡向变化表现为阴坡>半阳坡>半阴坡>阳坡>无坡向.植被碳密度随海拔梯度变化未表现出明显的规律,因坡向不同差异不大,但不同植被类型因坡向不同,碳密度差异较大,植被碳密度随坡度的增大呈增加的趋势.表6参21
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