Results 1 to 10 of about 424 (118)
Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model [PDF]
, 2023 [Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Chen Quan +5 more
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Patrones de distribución de los bosques subtropicales perennifolios de hoja ancha del suroeste de China en comparación con aquellos de las regiones subtropicales del este de China [PDF]
, 2015 This paper analyzes the geographic distribution patterns of the subtropical evergreen broad-leaved forests of southwestern China, and compares with other subtropical regions in the east of China in terms of forest types, pertinent species, and spatial ...
Tang, C. Q.
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Species Diversity and Altitudinal Gradient Patterns of Evergreen Broad-leaved Forest in Meihuashan National Natural Reserve,Fujian Province [PDF]
, 2012 作者简介: 孔祥海( 1965－ ) 男，硕士，副教授，主要从事植物学和生态学的教学与研究工作。E-mail: kongxianghai@ sian.com[中文文摘]常绿阔叶林是福建梅花山国家级自然保护区地带性植被。采用样带与典型群落调查法对区内的常绿阔叶林14400m2样地展开调查,并对植物多样性海拔梯度格局进行分析,结果表明:(1)群落植物物种丰富度、Gleason丰富度指数、Simpson指数、Shannon-Wiener指数和Pielou均匀度指数的均值分别为64.42、10.75、5.75 ...
孔祥海(龙岩学院生命科学学院) +1 more
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Zhejiang Daxue xuebao. Lixue ban, 2006 在对凤阳山白豆杉种群进行野外调查的基础上，分析了其群落的区系及物种多样性.结果表明：凤阳山白豆杉群落中共有维管植物59科104属160种（含变种），其中蕨类植物5科6属8种，裸子植物4科7属8种，被子植物49科88属142种.区系成分复杂，大部分属于温带和热带分布类型，其中温带类型占总属数的58.
DINGBing-yang(丁炳扬“) +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2014 以样方法对不同资源位群落进行调查，通过计算群落的生态位宽度、生态位相似性比例和生态位重叠值，分析浙江省7个自然保护区18个常绿阔叶林的12个优势种的生态位特征，探讨了各优势种群在次生林和原生林中生态位宽度、相似性和重叠的差异，比较了乔木树种与小乔木或灌木生态位宽度的差异.结果表明：(1)浙江省各保护区的常绿阔叶林多以木荷或甜槠为建群种或共优种，具有典型的中亚热带常绿阔叶林生态位相似性比例高的特点，且生态位重叠程度较低；(2)次生林中各种群的生态位宽度明显高于原生林 ...
WANJuan(万娟) +6 more
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Shuitu Baochi Xuebao, 2023 研究模拟氮沉降下凋落物分解特征对其持水性的影响,旨在为氮沉降背景下森林生态系统养分循环和水分循环相关研究提供理论依据。以滇中高原常绿阔叶林和高山栎林为研究对象,在野外开展模拟氮沉降下凋落叶、枝原位分解研究试验,设置0(对照CK),10(低氮LN),20(中氮MN),25(高氮HN) g/(m2·a)N共4种处理,利用尼龙网袋法和室内浸泡法,探究不同处理下凋落叶、枝质量残留率、持水量和持水率及吸水速率变化特征。结果表明:(1) 2种林分凋落叶、枝质量残留率随分解时间延长而减少;与CK质量残留率相比 ...
肖文贤 +3 more
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Shuitu Baochi Xuebao, 2006 通过分析不同林地类型土壤特性及林地枯落物水文特性,对缙云山4种类型(针阔混交林、常绿阔叶林、楠竹林和灌木林)林地涵养水源功能进行了研究。结果表明,灌木林表土层有机质含量为楠竹林的3.75倍,针阔混交林有机质含量为楠竹林的2.22倍,常绿阔叶林有机质含量为楠竹林的1.53倍。枯落物蓄积量为16.21~32.42t/hm2,枯落物最大持水率次序为针阔混交林>灌木林>常绿阔叶林>楠竹林,最大持水量为灌木林>针阔混交林>常绿阔叶林>楠竹林。土壤非毛管持水量由大到小依次是灌木林(66.2 mm)>针阔混交林(57.
孙艳红 +5 more
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Zhejiang Daxue xuebao. Lixue ban, 2014 选取浙江省低海拔地区的16个次生林样地并调查其中胸径(DBH)≥1 cm的木本植物.通过观察群落外貌，结合数量分类方法(TWINSPAN)和排序方法(DCA)，将这些样地划分为4种演替阶段的森林类型（马尾松林，马尾松针阔叶混交林，演替早期常绿阔叶林，演替中期常绿阔叶林）.分析了不同演替阶段的次生林群落物种多样性和植物功能群结构组成变化.结果显示：(1)适度择伐进入采伐期的马尾松可加速整个群落向常绿阔叶林演替；(2)随着演替的进行，物种丰富度、Shannon-Wiener指数 ...
ZHONGLei(仲磊) +6 more
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Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province [PDF]
, 2023 [Objective] The response of soil labile organic carbon components and enzyme activities to natural forest conversion was analyzed in order to provide a scientific basis for predicting regional soil health evolution and environmental change.
Li Xue +5 more
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, 2000 This study deals with the capacity for nutrient conservation,the balance of carbon and oxygen as well as the buffering of acid rain in the succession of vegetation of lower subtropical zone of southern China.The results show that:(1)N,P,K contents of ...
Guan, D, Peart, MR
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