林业资源管理
林業資源管理
임업자원관리
FORESTRY RESOURCE MANAGEMENT
2014年
z1期
56-59
,共4页
过疏过密%森林经营%森林质量
過疏過密%森林經營%森林質量
과소과밀%삼림경영%삼림질량
sparse and dense forest%forest management%forest quality
基于第七次、第八次全国森林资源清查结果，对全国过疏、过密的林分状况进行了专题分析。结果表明：全国过疏过密林分面积比例较大，占乔木林面积的1／3，主要分布在天然林中；清查间隔期内，过密林面积小幅增加，过疏林面积基本保持稳定；自然生长是导致天然林过密的主要原因，采伐和森林灾害是造成林分过疏的主要原因。林分过疏过密问题突出，急待需要通过加强森林经营、改善林分结构来提高森林质量。针对过疏过密林分形成的不同原因，综合考虑立地条件、地表覆盖，以及林分起源、林种、林龄和林木生长状况，从抚育间伐、补植、封山育林、采伐更新和管护等方面提出了加强森林经营管理的对策措施。
基于第七次、第八次全國森林資源清查結果，對全國過疏、過密的林分狀況進行瞭專題分析。結果錶明：全國過疏過密林分麵積比例較大，佔喬木林麵積的1／3，主要分佈在天然林中；清查間隔期內，過密林麵積小幅增加，過疏林麵積基本保持穩定；自然生長是導緻天然林過密的主要原因，採伐和森林災害是造成林分過疏的主要原因。林分過疏過密問題突齣，急待需要通過加彊森林經營、改善林分結構來提高森林質量。針對過疏過密林分形成的不同原因，綜閤攷慮立地條件、地錶覆蓋，以及林分起源、林種、林齡和林木生長狀況，從撫育間伐、補植、封山育林、採伐更新和管護等方麵提齣瞭加彊森林經營管理的對策措施。
기우제칠차、제팔차전국삼림자원청사결과，대전국과소、과밀적림분상황진행료전제분석。결과표명：전국과소과밀림분면적비례교대，점교목림면적적1／3，주요분포재천연림중；청사간격기내，과밀림면적소폭증가，과소림면적기본보지은정；자연생장시도치천연림과밀적주요원인，채벌화삼림재해시조성림분과소적주요원인。림분과소과밀문제돌출，급대수요통과가강삼림경영、개선림분결구래제고삼림질량。침대과소과밀림분형성적불동원인，종합고필입지조건、지표복개，이급림분기원、림충、림령화림목생장상황，종무육간벌、보식、봉산육림、채벌경신화관호등방면제출료가강삼림경영관리적대책조시。
Based on the results of the 7 th and 8 th national forest inventories,a thematic analysis was con-ducted on forest situation of sparse and dense forests.The results showed that the ration of sparse and dense forests account for 1/3 of the area of high forest,mainly distributed in natural forests,during the in-terval of inventories,a slight increase of the area of dense forest occurred,but the area of sparse forest re-mained stable;natural growth is the main reason leading to dense in natural forest,logging and forest dis-asters were the main reason for sparse forest.The problem of sparse and dense forests is urgent,which needs to strengthen forest management,improve forest structure and heighten forest quality.Aimed at the different reasons of sparse and dense forests,integrated consideration should be given to such factors as site conditions,land cover,origin,forest characteristics,age and growth conditions,countermeasures like intermediate cutting,complementary planting,closing hillsides to facilitate afforestation,logging regenera-tion and protection so as to strengthen forest management.
