基于二类调查的呼和浩特市林地资源动态变化分析
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摘要
文章以2006年和2016年二类调查数据为依据,通过对林地面积、蓄积的统计分析,探寻呼和浩特市林地面积增减变化规律。分析结果表明:2006—2016年,呼和浩特市土地面积和林地面积呈现双下降趋势,但有林地、灌木林地面积呈增加趋势,有林地、灌木林地分别增加5 539.9 hm~2和7 890.4 hm~2,对森林覆盖率贡献率0.78%;疏林地、未成林地、宜林地面积减少113 624.2 hm~2;林地利用率从22.25%上升到23.23%,提高了0.98个百分点,上升缓慢,乔木林单位面积蓄积量从2006年的55.5 m3/hm~2下降到2016年的48.53 m3/hm~2,减少率12.59%;天然林面积减少13 756.7 hm~2。
Based on the forest management investigation data in 2006 and 2016, this paper explores the law of the increase and decrease of woodland area in Hohhot through the statistical analysis of woodland area and accumulation. The analysis results showed that from 2006 to 2016, the land area and forest area of Hohhot showed a double decline trend, but the area of woodland and shrub woodland showed an increase trend. The area of woodland and shrub woodland increased by5,539.9 hm~2 and 7,890.4 hm~2 respectively, contributing 0.78 % to the forest coverage rate. The area of open forest land, undeveloped forest land and suitable forest land was reduced by 113, 624.2 hm~2. The utilization rate of forest land increased from 22.25 % to 23.23 %, with an increase of 0.98 percentage points. The increase was slow, and the unit area storage volume of arbor forest decreased from 55.5 m3/hm~2 in 2006 to 48.53 m3/hm~2 in 2016, with a reduction rate of 12.59 %. Natural forest area decreased by 13,756.7 hm~2.
Based on the forest management investigation data in 2006 and 2016, this paper explores the law of the increase and decrease of woodland area in Hohhot through the statistical analysis of woodland area and accumulation. The analysis results showed that from 2006 to 2016, the land area and forest area of Hohhot showed a double decline trend, but the area of woodland and shrub woodland showed an increase trend. The area of woodland and shrub woodland increased by5,539.9 hm~2 and 7,890.4 hm~2 respectively, contributing 0.78 % to the forest coverage rate. The area of open forest land, undeveloped forest land and suitable forest land was reduced by 113, 624.2 hm~2. The utilization rate of forest land increased from 22.25 % to 23.23 %, with an increase of 0.98 percentage points. The increase was slow, and the unit area storage volume of arbor forest decreased from 55.5 m3/hm~2 in 2006 to 48.53 m3/hm~2 in 2016, with a reduction rate of 12.59 %. Natural forest area decreased by 13,756.7 hm~2.
引文
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[13]刘琳,刘美爽,徐永飞,等.我国重点国有林区林地面积变化及趋势分析—基于黑龙江森工林区的实证研究[J].林业科学,2015,(51)8:88-94.
[2]马治远,刘文英,董耀先,等.呼和浩特市森林生态价值核算研究[J].内蒙古林业科技,2017,43(1):53-57.
[3]乔宏龙,闫美霞,张敏,等.呼和浩特市土地利用及森林资源结构分析—基于洛伦茨曲线和基尼系数法[J].内蒙古林业科技,2014,40(1):52-57.
[4]田秀峰,刘俊花,高岗.呼和浩特市森林资源质量综合评价[J].内蒙古林业调查设计,2013, 36(4):113-117.
[5]丁国强,刘文英,肖彩虹,等.呼和浩特市森林承载力综合评价研究[J].内蒙古林业科技,2016,42(4):49-53.
[6]高岗,田秀峰,范开志.改革和完善森林采伐管理制度,确保生态建设长足发展[J].内蒙古林业调查设计,2008,31(4):47-49.
[7]刘佳.呼和浩特市森林资源损失计量研究[D].内蒙古农业大学,2009.
[8]冯伟,田秀峰,高岗.呼和浩特市地区森林资源现状分析[J].内蒙古林业调查设计,2011,34(5):18-21.
[9]贾秀斌,张敏,闫美霞,等.呼和浩特市生态公益林结构及布局研究[J].内蒙古林业科技,2014,41(2):14-20.
[10]马治远,高岗.呼和浩特市中央财政森林生态效益补偿基金存在问题分析[J].内蒙古林业科技计,2014,40(3):44-49.
[11]段健,李艳慧,张婷.呼和浩特市林业发展现状分析[J].内蒙古林业调查设计,2016, 39(6):8-11.
[12]刘俊花,侯彩霞.呼和浩特市林业产业化现状分析[J].内蒙古林业调查设计,2013, 36(3):100-102.
[13]刘琳,刘美爽,徐永飞,等.我国重点国有林区林地面积变化及趋势分析—基于黑龙江森工林区的实证研究[J].林业科学,2015,(51)8:88-94.