Results 31 to 40 of about 3,046 (148)
Ecological Compensation Evaluation of Yongding South Industrial Park in Fujian Province [PDF]
, 2013 运用生态系统服务功能价值法以及生态恢复成本法对福建省永定工业园南部园区开发的生态补偿费用进行了估算,以生态系统服务功能价值损失为上限、生态恢复成本为下限,经发展阶段系数、林地补偿系数、贴现率调整,得到生态补偿费用的下限为4 987.50万元/A,上限为56 760.25万元/A,指出通过利益相关者的协商博弈确定最终的生态补偿标准。Ecosystem services value assessment method and ecological restoration cost assessment ...
刘花台, 汪新, 王燕云
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Investigation on population dynamics of Fejervarya multistriata in plantations of Fujian Province, eastern China. [PDF]
, 2013 2011年6—9月和2012年4—5月,采用“围栏陷阱法“对福建省将乐县国有林场典型人工林内泽陆蛙种群进行调查,共捕获泽陆蛙222只。采用聚类分析方法,按照体长、体重将泽陆蛙划分为成体和亚成体,分析不同月份、不同类型人工林、不同林龄人工林内泽陆蛙的日均捕获量、肥满度和重长比的变化规律。结果显示:1)人工林泽陆蛙日均捕获量随月份变化先减小后增大,肥满度无显著变化,重长比先增大后减小。2)人工林泽陆蛙肥满度、重长比,混交林高于纯林;日均捕获量纯林高于混交林。3)随人工林林龄的增加泽陆蛙肥满度、重长比增大 ...
李劭抒 +4 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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Shuitu Baochi Xuebao, 2017 以黑龙江省东部山地天然次生林为研究对象，采用野外染色示踪法、统计分析相结合的方法，应用Photoshop Cs5，Image pro Plus6.0图像处理软件，分析天然次生林下优先流区和基质流区土壤特性差异。结果表明：黑龙江省东部山地天然次生林土壤优先流现象极为明显，主要以大孔隙流、指流以及管流为主。表层土壤孔隙间的连通性好，水分运动过程变得相对均匀，不易于发生优先流。10—45 cm土层范围内，染色路径不再整体均匀扩散，表现出明显的优先运移特征，产生优先流，并表现出了一定的环绕特性。从土壤表层到底层，
王赵男, 辛 颖, 赵雨森
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土壤氮浓度对油松天然林新生枝叶碳氮磷化学计量及其内稳态的影响
Shuitu Baochi Xuebao, 2023 为了解油松(Pinus tabuliformis)天然林新生枝叶碳(C)、氮(N)、磷(P)化学计量特征对土壤氮浓度改变的响应及其林龄差异,揭示不同龄级油松新生枝叶N、P元素内稳态对短期氮添加的响应。以关帝山林区孝文山林场Ⅴ~Ⅶ龄级油松天然次生林为研究对象,采用野外原位氮添加试验的方法,设置对照(N0,0)、低氮(N1,5 g/m2)、中氮(N2,10 g/m2)和高氮(N3,15 g/m2)4个施氮水平,形成不同土壤N浓度梯度,分析不同N浓度新生枝和叶C、N、P计量指标和内稳态指数。油松枝叶C、N ...
闫鑫泽 +7 more
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Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin +4 more
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Shuitu Baochi Xuebao, 2007 黄土高原地区水资源缺乏，水资源，特别是土壤水资源的适度开发和合理利用势在必行。在黄土丘陵半干旱区的上黄生态试验站对多年生人工柠条林林冠截留，地表径流，土壤水分和植物生长等进行了定位观测，对林地土壤水分补给和消耗动态变化规律进行分析。结果表明，人工柠条林次降雨林冠截留随降水量增加而逐渐增加，地表径流与林外降雨量为直线关系。影响土壤水分补给的主要因素为天然降水，其次为林冠截留。土壤水分补给量与降雨量为线性关系；降水对土壤水分的影响程度随深度的增加而减弱，土壤水分最大入渗深度为170～270cm ...
郭忠升, 邵明安
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Soil Quality Assessment of Five Typical Forest Stands in the Dianchi Lake Basin based on MDS [PDF]
[Objective] Soil quality is a critical indicator of ecosystem health and sustainable land management. [Methods] Key soil quality indicators (e.g., organic matter, total nitrogen, available nitrogen, capillary porosity, and pH) were identified through ...
HUANG Shuai +4 more
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Niches and community stability of dominant herbaceous species in the forest and creek ecotone of Dehang Geopark [PDF]
[Objective] The study aims to explore the characteristics of ecological niche, interspecific connectivity, and community stability of dominant species in the herbaceous community of the forest and creek ecotone in Dehang Geopark, with the expectation ...
CHEN Gongxi +4 more
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Shuitu Baochi Xuebao, 1996 通过研究１０年生人工马尾松林生态系统１９９３～１９９４年的水文活动及其伴随着这些活动矿质元素的迁移过程。结果表明：就２年的平均值来看，林内蒸发量占全年天然降雨量的４．０％，林冠截留占２０．８％，地表径流占２７．８％；穿透雨和树干茎流分别占７６．５％和２．７％。其中以穿透雨中Ｋ，Ｐ，Ｃａ，Ｍｇ，Ｚｎ，Ｃｕ，Ｆｅ，Ｍｎ元素的浓度最高，次为地表径流，最低为天然降雨。流域收入大于支出，矿质量盈余８．５２８ｋｇ／ｈｍ２。
李飞, 王英芳, 陈永瑞
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