喀斯特次生林,Karst secondary natural forest
1)Karst secondary natural forest喀斯特次生林
英文短句/例句
1.Characteristics of litterfall and nutrient return in secondary forest in karst region of northwest Guangxi桂西北喀斯特次生林凋落物养分归还特征
2.BIOMASS OF CANOPY AND SHRUB LAYERS OF KARST FORESTS IN PUDING, GUIZHOU, CHINA贵州普定喀斯特次生林乔灌层地上生物量
3.Carbon and Nutrient Pools and Their Seasonal Changes of Forest Floor in Secondary Forest in Karst region of Guangxi广西喀斯特次生林地表碳库和养分库特征及季节动态
4.Ecological Functions of Forest Litter in Karst Region, Centre of Guizhou Province黔中地区几种喀斯特次生林凋落物生态功能研究
5.A Study on Water-Holding Capacity of Litter Layer of Different Karst Vegetations in the Central Region of Guizhou Province黔中地区几种喀斯特次生林枯落物持水性能研究
6.The Ecological Signification of Karst Forest Litter--A Case Study in Maolan Karst Forest喀斯特森林凋落物的生态意义——以茂兰喀斯特森林为例
7.Preliminary Study on Complex Model of Agriculture and Forestry in Karst Ecological Fragile Region in Guizhou;贵州喀斯特生态脆弱区农林复合模式初探
8.Study on Ecology Water Requirement and Planting Technique of Zanthoxylum Bungeanum Var. Dintanensis Forestland in Karst Area;喀斯特地区顶坛花椒林地生态需水过程及造林技术的研究
9.Effects of different environment of Karst forest on the biomass of Betula luminifera saplings喀斯特森林林分环境对光皮桦幼树生物量的影响
10.The Study on the Role of Karst Microhabitats in Karst Vegetation Restoration;喀斯特小生境在喀斯特植被恢复中的作用研究
11.Eco-division and Adaptive Models For Returnign farmland to Forest Project in Guizhou Karst Upland;喀斯特山地退耕还林工程生态分区与适生模式筛选
12.Since cenozoic era, the low mountains of hoodoos and peak clusters have been formed with continuous uplift and strong dissolve.新生代以来是一个长期上升、强烈溶蚀的喀斯特峰林、峰丛低山山地。
13.A Study of Theory and Technique on the Vegetation Restoration and Reconstruction of Degraded Ecosystem in Karst Mountain Area;贵州喀斯特退化森林生态系统恢复与重建理论及技术研究
14.Phenological Patterns of Native Species and Their Relationships with Ecological Factors on Karst Mountainous Area in the Stone Forest, Yunnan;云南石林喀斯特山地乡土植物的物候节律及其与生态因子的关系
15.The study on the current situation of Guilin s Karst Cave landscape and its protection;桂林喀斯特洞穴景观的生态环境现状及其保护研究
16.Research on the Development of Eco-economic Forestry in Karst Poor Areas--A Case Study of Guizhou Province;喀斯特贫困地区生态经济林业开发构想——以贵州省为例
17.DEVELOPMENT OF ECO-AGRICULTURE IS A BASIC WAY TO RETURN THE FARMLAND TO FOREST AND GRASS IN GUIZHOU KARST MOUNTAIN (DESERTIFICTION) REGION;发展生态农业是贵州喀斯特(石漠化)山区退耕还林的基本途径
18.Studies on Composition and Indicators of Monitoring and Evaluating for Forest Ecosystem Service Network in Guizhou Provincial Karst Mountainous Areas of China贵州喀斯特山地森林生态系统服务功能监测与评价网络布局研究
相关短句/例句
Karst natural forest喀斯特原生林
1.Methods For five years,we observed karst natural forest and secondary natural f.喀斯特原生林植被层地上部分最大持水量为28。
3)karst stone forests喀斯特峰林
4)Karst forest喀斯特森林
1.Effects of gap size on regeneration ofKarst forest in Maolan Natural Reserve of Guizhou province;茂兰喀斯特森林林隙大小对树种更新的影响
2.Species diversity change pattern in gap gradient in karst forest in Maolan Nature Reserve, Guizhou Province;喀斯特森林林隙梯度物种多样性变化规律
3.Study on the regeneration niche of major tree species in gaps in theKarst forest in Maolan Nature Reserve;茂兰喀斯特森林林隙更新生态位的研究
5)Shilin karst石林喀斯特
1.yunnanensis, and making up a series of local forest succession from human interference, had been studied respectively in rain season and dry season in the world-famousShilin karst scenery park.选择云南石林喀斯特景区地带性植被(原始林)及受人为干扰形成的次生林、灌丛、草地、云南松林5种生境, 进行雨季、旱季大型土壤动物群落结构、密度、生物量及多样性研究,结果表明:研究区大型土壤动物种类、生物量、 多样性指数与干扰状态具有明显关系。
6)karst forest area喀斯特林区
1.163 species under 83 genera and 32 families, collected from Maolankarst forest area in Guizhou province, are reported in this paper; the distributions and resources review of them are also approached; all these known species are listed with their collection cites.本文报道了通过调查已知的贵州省茂兰喀斯特林区大型真菌32科、83属、163种,并对其进行了生态分布分析及资源评价,同时列出了这些已知的种类及其采集地点。
2.This paper recorded the Musci of Maolan Karst Forest Area, 186 species (including subspecies and varieties) belong to 93 genera and 28 families are reported.本文记载了贵州茂兰喀斯特林区藓类植物28科,93属,186种,其中包括国内新记录3种,1新种和2新变种。
延伸阅读
次生林次生林secondaryforest原始森林经过多次不合理采伐和严重破坏后自然形成的森林。与原始林一起同属天然林，但其立地特点、树种组成、林分结构和起源与原始林、人工林不同。人工林采伐迹地上，栽培树种的萌生林与入侵树种形成的混交林，也属于次生林。次生林分布范围广，种类多，不仅可以生产木材、薪炭材和林副产品，而且在涵养水源、保持水土、调节气候和维持生态平衡等方面均起着重要的作用。中国次生林约占全国森林面积的46.2％。次生林可划分为多种类型。①按发生时间分成早期次生林、中期次生林和晚期次生林。一般用以区别大范围内次生林的性质及恢复速度，供经营规划时参考。②按发生地区分成远山次生林和近山次生林。一般反映人为活动的强弱及经营次生林与农业的关系。③按经营措施分成抚育型、改造型、利用型和封护型等。④还可按森林自然特征分类，方法较多，有按优势树种和树种组成划分的，有以生态因子划分的，有以地形作为主导因子进行划分的，还有以立地条件和优势树种划分的。次生林的经营措施应根据自然特征和经济条件（交通、劳力、产品销路等）选用：①抚育间伐。科学地确定采伐木和采伐强度，为目的树种生长创造有利的环境条件。②林分改造。是在密度小、经济价值低或病虫害严重的林分中全面或局部伐除原林分，再栽植珍贵树种，以调整林分组成，增加林分密度，提高林分生产力。③抚育改造。是抚育间伐与林分改造相结合的一种经营方式。④封山育林。利用树木自然繁殖能力恢复森林的措施。可分为全封、半封和轮封3种。封山期间禁止一切人为活动，开封片则允许在一定季节内进行林副业生产活动。主要用在交通不便和经营水平不高的地区。郁郁葱葱的次生林
