检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:崔琳 王力刚 张强 张玉柱 季晓慧 周佳奇 CUI Lin;WANG Ligang;ZHANG Qiang;ZHANG Yuzhu;JI Xiaohui;ZHOU Jiaqi(Qiqihar Branch of Heilongjiang Academy of Forestry,National Permanent Scientific Research Base on Shelter forest in Nenjiang Plain,Qiqihar 161005;Qiqihar University,Heilongjiang Qiqihar 161003)
机构地区:[1]黑龙江省林业科学院齐齐哈尔分院,嫩江平原防护林国家长期科研基地,黑龙江齐齐哈尔161005 [2]齐齐哈尔大学,黑龙江齐齐哈尔161003
出 处:《林业科技》2024年第3期54-57,70,共5页Forestry Science & Technology
基 金:齐齐哈尔市科技计划创新激励项目(CNYGG-2023005);黑龙江省省属科研院所科研业务费非竞争项目(CZKYF2024001);黑龙江松嫩平原农田防护林生态系统国家定位观测研究站。
摘 要:对黑龙江省三北五期工程2011-2020年10年来造林面积变化时空特征进行分析,结果表明:10年间,黑龙江省三北防护林造林总面积呈先减后增再减态势,总量从2011年的9.93万hm~2减少至2020年的4.38万hm~2,不同造林方式下造林面积变化幅度也存在着时段性差异;造林面积整体呈现西高东低的分布格局,主要造林区域为哈尔滨、齐齐哈尔、绥化,占造林总面积的57%,灌木造林分布区域零星分散,退化修复改造面积分布区域则相对集中在黑龙江西部的松嫩平原,封山育林面积主要分布在黑龙江中东部山区以及北部小兴安岭余脉;气候、水分、地形、社会、前期工程建设等诸多因素均会对防护林建设产生影响。The spatio-temporal variation characteristics in the five phase of Three-North Shelterbelt Program region of Heilongjiang during 2011-2020 were analyzed.The results showed that:In the past 10years,the total afforestation area of the Three-North Shelterbelt Program in Heilongjiang Province has decreased first,then increased and then decreased,the amount of protection forest area from 99300 hm~2in2011 to 43800 hm~2in 2020 is decreasing,and the change amplitude of afforestation area under different afforestation methods also varies in certain periods.The afforestation area was high in the west and low in the east.The main afforestation areas were Harbin,Qiqihar and Suihua,accounting for 57%of the total afforestation area.The shrub afforestation distribution area was scattered scattered,the degraded restoration and reconstruction area was relatively concentrated in the Songnen Plain in the west of Heilongjiang Province,and the afforestation area was mainly distributed in the mountains in the middle and east of Heilongjiang Province and the remnant of the Xiao Hinggan Mountains in the north.Many factors such as climate,moisture,topography,society and pre-construction will affect the construction of shelterbelts.
分 类 号:S757.3[农业科学—森林经理学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.51