森林资源调查设计对林地资源保护的影响分析——以双鸭山市为例

Analysis on the Impact of Forest Resource Survey and Design on Forest Resource Protection-A Case Study of Shuangyashan City

以黑龙江省双鸭山市为例,分析了森林资源调查设计对林地资源保护的具体影响。以森林资源调查设计方法为主,以文献研究法、调查分析法及经验总结法为辅,对黑龙江省双鸭山市所属4个林场范围内的林地资源进行了分析,分别统计和汇总2018-2022年双鸭山市所属4个林场范围的地类类型、不同年份林龄面积和占比,以及林地保护等级。结合5年森林资源调查结果表明:①林地地类类型:林场林地总面积、林场林地总面积、灌木林地面积、宜林地面积、辅助生产用地面积逐年提升,疏林地面积、未成林造林地面积、苗圃地面积、无林地面积逐年下降;②不同林龄面积:幼龄林和中龄林面积逐渐增加,占比逐渐增高,近熟林和成熟林面积逐渐减少,占比逐渐降低;③林地保护等级:I级保护林地的占比逐年提高,Ⅱ级保护林地和Ⅲ级保护林地占比无明显变化,Ⅳ级保护林地逐渐下降。森林资源调查设计可明确林业调查内容,通过对一定区域内的地类分析、林龄结构分析以及林地保护等级分析等,详细了解该区域的林地资源概况,结合调查结果合理做好林业资源保护工作,进而实现对林地资源的保护。

Taking Shuangyashan City,Heilongjiang Province as an example,this paper analyzes the specific impact of forest resources investigation and design on forest resources protection.Based on the forest resources investiga-tion design,supplemented by literature research,investigation analysis and experience summary,the forest re-sources within the scope of the 4 forest farms in Shuangyashan,Heilongjiang Province were analyzed.The land types of the 4 forest farms in Shuangyashan,Heilongjiang Province were collected from 2018 to 2022,and the for-est age area and proportion as well as the forest protection level in different years were analyzed based on the sur-vey of forest resources in the past 5 years,it can find that:①the forest land types:the total area of forest farm,shrub land,suitable land and auxiliary production land increased year by year,while the area of dredge land,un-formed forest land,nursery land and non-forest land decreased year by year;②the area of different forest ages:the area of young and middle-aged forests gradually increases,and the proportion gradually increases;the area of near mature forests and mature forests gradually decreases,and the proportion gradually decreases;③forest pro-tection grade:the proportion of Grade I protected forestland increased year by year;the proportion of GradeⅡprotected forestland and GradeⅢprotected forestland did not change significantly,and the proportion of gradeⅣprotected forestland gradually declined.Forest resources investigation design can clarify the content of forestry in-vestigation.Through the land type analysis,forest age structure analysis and forest protection grade analysis in a certain area,the general situation of forest resources in the region is understood in detail,and the forest resources protection work is reasonably done according to the investigation results,so as to realize the protection of forest resources.