Results 21 to 30 of about 2,687 (178)
Soil and Water Conservation and Ecological Benefits of Forest Ecosystem in New Urban Karst Areas of Central Guizhou Province [PDF]
, 2022 [Objective] Soil and water conservation and ecological benefits of forest ecosystem in the new urban karst areas of Guanshanhu District, Guiyang City in Central Guizhou Province were studied to scientifically evaluate the achievements of ecological ...
Dai Zhengjiao +6 more
core +1 more source
Mapping legal authority for terrestrial conservation corridors along streams
Conservation Biology, Volume 34, Issue 4, Page 943-955, August 2020., 2020 Abstract Wildlife corridors aim to promote species’ persistence by connecting habitat patches across fragmented landscapes. Their implementation is limited by patterns of land ownership and complicated by differences in the jurisdictional and regulatory authorities under which lands are managed.
Amanda T. Stahl +2 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2014 基于浙江省天目山常绿阔叶林1 hm2样地调查数据，应用点格局方法分析了 3种优势种细叶青冈(Cyclobalanopsis gracilis) 、杉木(Cryptomeria fortunei)、短尾柯(Lithocarpus brevicaudatus)的空间分布格局，对比了优势种不同生长阶段（幼苗、幼树、中树、大树）的空间分布格局以及不同生长阶段之间的空间关联性.结果表明：(1)3个主要优势种并未受到明显的生境异质性的影响，总体呈现随机分布格局，其中短尾柯由于具有较高的根蘖率，导致在中树种群阶段于2~
SHENMingliang(申明亮) +5 more
doaj +1 more source
Effects of Different Ecological Restoration Measures on Reconstruction of Slope Vegetation in Southeastern Xizang Autonomous Region [PDF]
, 2023 [Objective] The effects of environmental factors on the plant community of a slope during ecological restoration objective of Pai-Mo Highway in Qinghai-Xizang Plateau were analyzed in order to provide theoretical basis for ecological restoration plan of ...
Huang Mengyue +9 more
core +1 more source
野生动物学报, 2021 为掌握喀斯特地区同域分布的小麂（Muntiacus reevesi）和毛冠鹿（Elaphodus cephalophus）共存的时空分化格局，利用公里网格布设的红外相机对贵州麻阳河国家级自然保护区内的这2种鹿类进行监测。于2019年2—8月，在151个网格位点分别获得1328张小麂和167张毛冠鹿的独立有效照片，总有效工作时长21234 d。结果表明：（1）在时间活动节律上，小麂与毛冠鹿均属晨昏活动型，均在7月活动强度最高，日和季节性活动节律上两者均无显著差异（P>005），仅日活动高峰有所不同。（2）
邹启先 1# 彭彩淳 2 +4 more
doaj
Spatiotemporal Characteristics of Vegetation Cover and Climate Driving Factors in Sichuan Province from 2000 to 2020 [PDF]
, 2022 [Objective] The vegetation change and important climate factors influencing fractional vegetation coverage (FVC) in Sichuan Province were analyzed in order to provide theoretical support for the sustainable development of natural resources in this area. [
Sun Mengxin +4 more
core +1 more source
Dynamic Changes of Terrestrial Vegetation Cover in Lugu Lake Wetland Nature Reserve, Sichuan Province from 2000 to 2020 [PDF]
, 2023 [Objective] The spatial-temporal variation of terrestrial vegetation coverage in Lugu Lake Wetland Nature Reserve in Sichuan Province during 2000—2020 was analyzed in order to provide a reference for the construction and management of the reserve ...
Gao Yu +4 more
core +1 more source
Shuitu Baochi Xuebao, 2007 采用地统计学的方法,研究了江西泰和退化红壤区不同模式重建森林在高温干旱季节土壤水分空间变异规律及其分布格局。结果表明,在该研究尺度下,湿地松纯林、枫香纯林、湿地松与枫香混交林0~20 cm,20~40cm土层含水量分布都符合正态分布,都可较好地拟合成球状模型,表现出明显的空间相关性和空间分布格局。3种重建模式样地0~20 cm,20~40 cm层土壤含水量变异函数的基台值、变程都较无林荒地明显增大,而且基台值和变程在0~20 cm,20~40 cm两土层间的差异明显大于无林荒地,说明植被恢复以后 ...
杜志勇 +3 more
doaj +2 more sources
牛山湖两种优势小型鱼类空间分布与沉水植被的关系! [PDF]
, 2012 运用8种网目规格的成套浮性刺网作为鱼类采样工具,于2005年夏季在长江中游浅水草型湖泊牛山湖进行鱼类定量采样,通过比较不同茂密程度黄丝草生境中的小型鱼类组成、数量和大小结构,探讨此类湖泊小型鱼类的空间分布特征及其与沉水植被的关系.采样期间共捕获13种1124尾鱼,依据其等级丰度和出现频次,和红鳍原!为该湖优势上层小型鱼类.在调查的沉水植物生物量范围内,鱼类物种丰富度和Shannon多样性指数与沉水植物生物量之间呈现倒抛物线关系;两种优势小型鱼类的种群丰度均与沉水植物生物量有着显著的线性正相关关系 ...
刘家寿 +3 more
core
Rare Metals, EarlyView.ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan +10 more
wiley +1 more source