Results 11 to 20 of about 2,888 (178)
福建水库空间分布特征:沿海密度高水量少、内陆密度低水量多 [PDF]
, 2018 水库是福建重要的水资源.通过2013-2015年遥感影像结合Google Earth和天地图提取福建水库3353座,分布在81个县区,总面积647.51 km2,约占全省土地面积的0.5%;其中面积≤1 km2水库3248座,总面积197.16 km2,面积>1 km2水库105座,总面积450.35 km2.基于经验公式估算总蓄水量188.18亿m3,其中小型水库3078座(91.80%),蓄水总量37.06亿m3(19.69%),大中型水库275座(8.20%),蓄水总量151.12亿m3(80 ...
朱珍香, 杨军
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World Water Policy, Volume 9, Issue 3, Page 456-480, August 2023., 2023 Abstract Groundwater is a vital resource under threat in island communities. Karainagar, a 22 km2 island, is one of seven islands off the coast of Jaffna in Northern Sri Lanka, with its population of just about 11,000 persons, experiences seasonal water shortage, and salinity in groundwater as twin threats impacting on their lives.
Inthirakumaran Karthiga +3 more
wiley +1 more source
Spatial mismatch between wild bee diversity hotspots and protected areas
Conservation Biology, Volume 37, Issue 4, August 2023., 2023 Abstract Wild bees are critical for multiple ecosystem functions but are currently threatened. Understanding the determinants of the spatial distribution of wild bee diversity is a major research gap for their conservation. We modeled wild bee α and β taxonomic and functional diversity in Switzerland to uncover countrywide diversity patterns and ...
Joan Casanelles‐Abella +4 more
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Habitat‐based biodiversity assessment for ecosystem accounting in the Murray–Darling Basin
Conservation Biology, Volume 36, Issue 5, October 2022., 2022 Abstract Understanding how biodiversity is changing over space and time is crucial for well‐informed decisions that help retain Earth's biological heritage over the long term. Tracking changes in biodiversity through ecosystem accounting provides this important information in a systematic way and readily enables linking to other relevant environmental ...
Karel Mokany +4 more
wiley +1 more source
Conservation planning on China's borders with Myanmar, Laos, and Vietnam
Conservation Biology, Volume 35, Issue 6, Page 1797-1808, December 2021., 2021 Abstract Transboundary conservation is playing an increasingly important role in maintaining ecosystem integrity and halting biodiversity loss caused by anthropogenic activities. However, lack of information on species distributions in transboundary regions and understanding of the threats in these areas impairs conservation.
Lin Wang +9 more
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Assessing the current state of ecological connectivity in a large marine protected area system
Conservation Biology, Volume 35, Issue 2, Page 699-710, April 2021., 2021 Abstract The establishment of marine protected areas (MPAs) is a critical step in ensuring the continued persistence of marine biodiversity. Although the area protected in MPAs is growing, the movement of individuals (or larvae) among MPAs, termed connectivity, has only recently been included as an objective of many MPAs.
Kelsey E. Roberts +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2015 基于浙江天目山国家级自然保护区常绿落叶阔叶混交林1 hm2样地调查数据，采用空间代替时间和点格局分析法，探究了交让木种群的结构特征、不同生长阶段的空间分布格局及其相互关系.结果表明：(1)交让木种群的径级结构大体呈倒J型，属增长型种群.(2)排除生境异质性影响，交让木幼苗、幼树、中树以及整个种群在1~3 m尺度上呈现微弱的均匀分布格局，其他尺度上呈现随机分布格局.(3)交让木中树与幼树之间基本呈微弱的负相关或无关联性；幼树与幼苗在小尺度区域内呈负相关，随空间尺度增大负相关性减弱至无关联性 ...
ZHAOMingshui(赵明水) +4 more
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A Study on Carbon Fixation Capacity and Its Influencing Factors Based on InVEST Model at Wuhu City [PDF]
, 2023 [Objective] The spatial and temporal distribution pattern of carbon storage at Wuhu City, Anhui Province from 2011 to 2021 were analyzed, and the influence of ecological environmental factors, topographic factors, meteorological factors, and land use ...
Chu Yunzhi +9 more
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Zhejiang Daxue xuebao. Lixue ban, 2018 青海省宗教发展历史悠久，宗教旅游资源丰富，宗教场所的空间分布特征对青海省区域旅游格局有重要影响.对青海省宗教场所旅游资源进行了统计，分别从空间分布模式、差异性、密度等方面采用最邻近指数、地理集中指数、洛伦茨曲线、核密度方法对其空间格局特征进行了定量分析，并利用空间回归分析法探讨了其分布与海拔、坡度、交通、水系等因素的关系.结果表明：青海省宗教场所旅游资源呈“东多西少”的集聚分布态势，空间差异显著，旅游资源集中在青海省11%地区；空间分布密度呈由东向西辐射（型）的分布趋势；空间回归分析结果显示，在地势平坦、
ZHULitao(朱利涛) +3 more
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Spatio-temporal Differentiation and Driving Factors of Farmland Ecosystem Carbon Source-Sink Effects in Guangdong Province [PDF]
, 2023 [Objective] The spatio-temporal differentiation and driving factors of farmland ecosystem carbon source-sink effects in Guangdong Province were analyzed in order to provide a valuable reference for the scientific and rational formulation of regional ...
Bin Jinyou, Tang Xiaobing
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