Results 11 to 20 of about 115 (102)
野生动物学报, 2014 以2000年、2007年、2013年3期Landsat TM遥感影像为主要数据源,结合辅助资料对扎龙保护区进行提取,在Erdas的支持下实现图像解译,分析景观变化。结果显示,2000～2013年,扎龙保护区沼泽湿地面积先减后增,但仍以沼泽为基质景观,沼泽面积受自然因素的影响很大; 草地景观有所减少,耕地面积小幅度增加; 明水面面积变化较大,主要受降水影响。以道路、居民地、耕地作为人为干扰源,选择适合的干扰距离对三者进行缓冲分析,探究人为干扰对丹顶鹤生境的影响程度。结果表明:人为干扰逐年加大 ...
龙泽旭 龚文峰 袁 力 李 浩
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野生动物学报, 2020 食物可获得性不仅与环境变化密切相关,也会对动物的生存或繁殖产生重要影响。2016年春季,扎龙湿地一块农田内一对散放繁殖丹顶鹤在取食已经播种的玉米种子。为了调查和分析这一行为发生对其生存和繁殖产生的影响,本文结合观察法、实地测量和DV录像方式估算其取食效率,对其取食玉米的能量与同期笼养繁殖鹤对摄入总能量进行比较,并对其首次产卵、再次产卵与笼养鹤卵的卵壳厚度、密度和钙元素含量进行对比。结果发现,这对散放繁殖丹顶鹤取食玉米种子效率高达91.22%,取食玉米的能量占同期笼养丹顶鹤摄入总能量的67.74 ...
杨志宏 1 邹红菲 2
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Effects of Climate Change on Vegetation Productivity in Zhalong Nature Reserve [PDF]
, 2023 [Objective] The ecological changes in Zhalong Nature Reserve since 2010 were studied accurately in order to provide data support and theoretical references for improving the ability to assess the value of wetland ecosystem services.
Liu Dan, Yin Shiping, Yu Chenglong
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Spatial and Temporal Changes and Prediction of Habitat Quality in Key Ecological Function Area of Hu'nan Province [PDF]
, 2022 [Objective] Land use change and habitat quality in Nanyue key ecological function area of Hu'nan Province were studied to reveal the relationship between forest land reduction and habitat quality caused by human activities, in order to promote the ...
Deng Chuxiong +5 more
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GIS-based Study of Ecological Water Requirement of Vegetation in Inner Mongolia Autonomous Region [PDF]
, 2023 [Objective] The ecological water requirement (EWR) of vegetation in different typical zones for the rational allocation of water resources in the Inner Mongolia Autonomous Region was analyzed and calculated to provide scientific suggestions for water ...
Ge Zheng +5 more
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Comparison of Different Methods for Calculating Evapotranspiration of Crops in the Yellow River Delta [PDF]
, 2017 准确估算各地区的参考作物腾发量(ET_0)是农业灌溉设计和节水规划中必不可少的内容。利用黄河三角洲地区4个典型气候区的气象资料,选用5种计算方法(P-M, FAO-79Penman、Priestley-Taylor,FAO-24Penman和 Hargreaves-Samani)计算了 ET_0,并以P-M方法作为标准,对其他方法进行了评价。结果表明,在黄河三角洲各气候区FAO-Penman法估算的ET_0较Priestley-Taylor方法更接近于P-M法的计算结果,并且计算精度较高,误差在3 ...
刘虎 +6 more
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Study on wetland forming and community structure of Donghaiyang wetland in Fujian Province [PDF]
, 2014 东海洋沼泽湿地位于福建省泰宁县峨嵋峰自然保护区，该区域孕育着丰富的湿地植被，是研究山地沼泽湿地的理想区域。本研究以东海洋沼泽湿地为对象，从湿地沉积物、物种组成、群落特征、群落演替特征等方面进行分析。主要研究结论如下： （1）东海洋湿地形成的主要因素有：较封闭的盆地地形，有利于水源汇集；沼泽表层沉积物以质地粘重的粘土、粘壤土为主，透水性差，长期积水促使湿地形成；温暖型气候，终年气温较低，且昼夜温差大，使得岩石分解碎裂，经流水作用，汇入湿地，使沼泽湿地充分发育。 （2 ...
江凤英
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环境因子和生物因子对黄河三角洲滨海湿地土壤呼吸的影响 [PDF]
, 2016 Using the Li-8150 multichannel automatic soil CO2efflux system, soil respiration was measured continuously over a one-year period in a coastal wetland in the Yellow River Delta, China.
Chen, Liang +6 more
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Investigation of taxonomic shrub resources in Qiqihar and analysis of their economic potentiality [PDF]
[Objective] The study aims to find out the shrub resource situation and its economic potentiality in Qiqihar, and provide basis for the development and utilization of shrub resources in this area.
CUI Lin +5 more
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野生动物学报, 2020 青头潜鸭（Aythya baeri）是近年来受到国际广泛关注的极危物种，全球种群数量不足1000只，中国作为其主要分布地，种群数量约为600—800只。松嫩平原是其历史繁殖地，而扎龙保护区是松嫩平原较有代表性且受到国际广泛关注的大面积湿地，其内青头潜鸭的分布状况对其研究与保护有重要意义。本文综合野外实地观察及文献，对青头潜鸭在扎龙保护区的分布状况进行了总结，认为目前青头潜鸭在扎龙保护区的分布地主要在保护区的东北部、西北部及东南部。
陈露 1# 郭瑞萍 1# 张琦 1# 王鑫源 1 侯佳音 1 黄胧瑶 1 靳璐 1 吴庆明 1 马建华 2 徐卓 1 +1 more
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