1) Pinus massoniana natural forest
马尾松天然林
1.
Based on the data from sample plots of Pinus massoniana natural forest in Sichuan and Chongqing areas,this paper studies the regression models of DBH and ground diameter (including d_0.
利用在川渝地区进行的马尾松天然林标准地(含样木)调查资料,研究了马尾松根径(树干基部3个不同部位的直径d0。
2) secondary Pinus massoniana forest
马尾松天然次生林
1.
Secondary Pinus massoniana forest is the main forest type of Qiandao Lake.
马尾松天然次生林是千岛湖的主要森林植被类型 ,虽具独特风韵 ,但生物多样性低、稳定性差、生态功能脆弱 ,面临松毛虫和松材线虫的致命威胁。
3) natural Pinus massoninana Lamb
天然马尾松
1.
Based on the data from plots of natural Pinus massoninana Lamb in western Fujian, the best density effect model of natural Pinus massoninana Lamb was selected and analyzed.
应用天然马尾松林样地资料， 比较和筛选了天然马尾松林密度效应模型， 并对密度效应最优模型进行了生产弹性分析和边际产量分析， 测定了天然马尾松林密度的生产弹性值和边际产
4) Pinus massoniana forest
马尾松林
1.
Successional dynamics of Pinus massoniana forest in Lijiang River watershed,Guilin;
桂林漓江流域马尾松林演替动态
2.
Based on a field investigation, the early recovery vegetation characteristics of Pinus massoniana forest, Cunninghamia lanceolata forest and evergreen broad-leaved forest, which had been burned severely one year before, in Maoan Forestry Centre of Chongqing were analyzed.
通过对重庆市北碚区茅庵林场马尾松林,杉木林和常绿阔叶林3种群落火烧1年后的迹地以及未火烧林地的群落学调查,研究了高强度火干扰后不同群落早期恢复植被特征。
3.
Height, diameter at breast height(DBH) and canopy width(CW) of 17 broadleaved tree species in degraded Pinus massoniana forest from lianhua mountain Nature Reserve of Dongguan city, were measured and analyzed.
对东莞莲花山自然保护区退化马尾松林林分2002年种植的17个3年生阔叶树种的树高、胸径以及冠幅进行测量和分析。
5) masson pine forest
马尾松林
1.
The distribution of Masson Pine forest is very wide in the upper ana middle reaches of Yangtse River.
长江中上游地区马尾松林的分布非常广泛。
6) Pinus massoniana
马尾松林
1.
Eco-hydrological Effect of Pinus massoniana Canopy and Its Influence Factors in Zhangjiajie of Hunan Province;
湖南省张家界马尾松林冠生态水文效应及其影响因素分析
2.
Study of Hydfological Characters and Movement of Mineral Elements of Pinus massoniana Forest Watershed;
马尾松林水文特征及其矿质元素迁移研究
3.
pubescens, Pinus massoniana stand and tea garden were analyzed.
通过对马尾松林、茶园和毛竹林土壤酶活性的研究表明:3种群落间,毛竹林的过氧化氢酶活性大于马尾松林、茶园(P<0。
补充资料：石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(internotional tradeof011 and只as)见石油市场与天然气市场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条