首页|"双碳"目标下巍山县桉树低效林改造

"双碳"目标下巍山县桉树低效林改造

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采用实地调查、资料查阅和统计分析的方法,综合得出:巍山县桉树纯林连片面积过大,林下灌木、草本种类和灌草盖度同比低,森林群落和林分结构单一,生物多样性差;掠夺式经营,地力枯竭,初级生产力降低,林分老化,长势缓慢,年净生长率仅3。73%<栎类、云南等中生树种,桉树速生特性消失;桉树公益林、其他用材林、林化工原料林单位蓄积分别为20。4、37。4、4。2 m3/hm2,主要用材林树种中同比最低,枯梢死亡,林相残破,森林质量差,森林碳汇能力持续下降,林分退化严重,已很难自我修复和演替。为实现提升森林资源质量,改善生态环境,增加森林碳汇,促进地方生态和经济可持续发展的目的,可采用综合改造、皆伐更新、间伐套种3种方式对巍山县桉树低效林进行改造,并提出了"一地一策",合理选择改造方式,科学选择造林树种,探索"以短养长"经营模式,尽快发挥林地生产潜力,缩短投资期;强化宣传示范,用老百姓喜闻乐见的方式,建立改造示范基地和机关工作人员、村社干部带头示范机制,用真实的例子激发林农的意愿,引导人民群众主动参与桉树改造;整合行业、部门资源,加大奖补资金,创新投资机制,拓宽融资渠道,创新经营模式,简化审批流程,加大对桉树改造的支持力度;县林草局、乡镇、村委会、村民小组、改造主体各司其职,加强管理确保改造实效等统筹推进桉树改造的对策和建议,以供参考。
Renovation of Low-Quality Eucalyptus Forest in Weishan County Under the Target of Carbon Peaking and Carbon Neutrality
Based on the investigation of the present situation of the Eucalyptus forest resources in Weishan county by means of field investigation,information query,statistical analysis,the results holds that the area of pure Eucalyptus forest in Weishan County was too large;the coverage of shrubs,herbs and shrubs under the forest was lower than that of the previous year;the forest community and stand structure were single,and the biodiversity was in reduction.Predatory management,land capacity depletion,primary productivity decreasing,stand aging,slow growth,annual net growth rate is only 3.73%.Quercus sclerophyllous forest,Pinus yunnanensis forest and other middle growing trees as well as Eucalyptus rapid growth characteristics disappeared;The unit stock volume of Eucalyptus public service forest,other timber forest and forest chemical raw material forest was 20.4 m3/hm2,37.4 m3/hm2 and 4.2 m3/hm2,respectively.Among the major timber forest species,it was the lowest year-on-year,with dead shoot,forest phase destruction,poor forest quality,continuous decline in forest carbon sink capacity,and serious forest degradation.It is difficult to repair itself.In order to improve the quality of forest resources,improve the ecological environment,increase forest carbon sink,and promote the sustainable development of local ecology and economy,three ways can be adopted to transform the low-efficiency Eucalyptus forest in Weishan County.It is proposed to adopt"one area and one strategy",reasonable selection of transformation methods and scientific selection of afforestation species,explore the"short to grow"management model,as soon as possible to play the forest production potential and shorten the investment period;publicity and demonstration should be strengthened;understandable expression,acceptable things and people around them are used to train masses;a demonstration base for renovation and a demonstration mechanism for government staff and village community cadres are established to stimulate the will of foresters with real examples and guide the masses to actively participate in Eucalyptus renovation;industrial and departmental resources are integrated;award and subsidy funds are increased;investment mechanisms are innovated;financing channels are broadened;business models are innovated;the approval process is simplified,and support for Eucalyptus renovation is increased;The county forestry and grass bureau,township,village committee,villagers'group,and renovation subjects all assume their responsibilities,strengthen management to ensure the effectiveness of the renovation,and coordinate the countermeasures and suggestions to promote the renovation of Eucalyptus for reference.

forest carbon sinkEucalyptus renovationanalysis of countermeasuresWeishan County

姚伟、王有位

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云南省巍山县林业和草原局,云南 巍山 672400

大理白族自治州林木种苗管理站,云南 大理 671000

森林碳汇 桉树林改造 对策浅析 巍山县

2024

绿色科技
花木盆景杂志社

绿色科技

影响因子:0.365
ISSN:1674-9944
年,卷(期):2024.26(1)
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