Results 21 to 30 of about 377 (100)
Shuitu Baochi Xuebao, 2002 采用人工模拟降雨装置 ,对红壤坡地养分流失特征进行了试验研究 ,结果表明 :在雨强较大情况下 ,土壤养分以泥沙形式随径流迁移 ;当雨强较小时 ,随径流迁移的可溶态养分流失量占流失泥沙养分量的比例较高 ,土壤养分流失氮、磷、钾分别达到 5 3.12 % ,2 3.1% ,2 1.5 % ;不同形态的养分在流失泥沙中均有养分富集现象 ,但富集率各不相同 ;土壤养分流失量与雨强及泥沙流失量呈正相关关系。
马琨 王兆骞 等
doaj +2 more sources
Effects of Interplanting Medicinal Herbs on Runoff, Sediment and Nitrogen and Phosphorus Losses in Young Oil Tea Plantation on Red Soil Sloping Field [PDF]
[Objective] To investigate the effects and applicability of different intercropping patterns of medicinal herbs on water, soil, and nutrient losses in young oil tea gardens on red soil slopes. [Methods] Runoff plot experiments were carried out in Jiangxi
DUAN Jian +4 more
core +1 more source
Process and Correlation Between Ecosystem Services Value and Ecological Risk in River Basin [PDF]
, 2022 [Objective] The spatio-temporal pattern and interrelationship between the value of ecosystem services and ecological risks in river basins were analyzed in order to ensure healthy and sustainable development of ecosystems, maintain regional ecosystem ...
Bi Shanshan +5 more
core +1 more source
Shuitu Baochi Xuebao, 2002 林地被人为开垦破坏后 ,加速侵蚀是导致坡面土壤养分流失的根本原因。坡面土壤养分流失的空间分布与坡面侵蚀方式和侵蚀强度的空间分布相一致 ,浅沟沟槽是坡面土壤养分流失最严重的部位。土壤养分流失在开垦初期非常迅速 ,开垦耕种 5 a后 ,土壤养分含量可减少 5 0 %。土壤剖面中 A层的流失是土壤养分流失的标志。
郑粉莉 张成娥
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Environmental risk assessment of intensive animal production in Jiulong River Watershed [PDF]
, 2005 在G IS支持下采用养分收支平衡法对九龙江流域规模化生猪养殖的环境风险进行评价。规模化养殖污染负荷在不同类型养殖场的分配、空间分布规律以及规模化养殖的环境风险评价结果表明:规模化养猪业年产粪尿量达107万t,以小型规模化养殖场产生的污染负荷最高;整体来看,规模化生猪养殖的环境风险不大,但由于养殖场的地理分布集中,造成近郊区域规模化养殖的环境风险极高;由于过多施用化肥,中远郊规模化养殖粪尿未得到合理利用而流失。位于水系附近的养殖场对水体影响较大,根据“福建省畜禽养殖污染防治管理办法 ...
曹文志, 曾悦, 洪华生, 陈能汪
core
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
core +1 more source
When Public Health Becomes the Weapon: Current and Prospective Consequences of the Genocide in Gaza
World Medical &Health Policy, Volume 18, Issue 2, June 2026.ABSTRACT Catastrophic humanitarian conditions during the 2023–2025 genocide in Gaza have caused a public health crisis of exceptional magnitude. This article summarizes key short‐ and long‐term health consequences for Gaza's civilian population and outlines priorities for recovery.
Therese Alexandra Evald +19 more
wiley +1 more source
Shuitu Baochi Xuebao, 2001 土壤养分流失是农田非点源污染的主要形式。以长江三峡库区典型小流域为研究区域 ,根据土壤养分流失规律与土壤侵蚀量预测结果 ,以及表土中养分含量 ,像元土壤侵蚀量和泥沙对养分的富集比 ,建立了可与 GIS结合的侵蚀泥沙携带养分量预测模式。运算结果显示 ,小流域有机质、氮、磷、钾流失总量分别为 5 0 9.8,47.1,14.6 ,1137.4t,平均 30 .5 ,2 .8,0 .9,6 8.1t/ km2。根据正常施肥水平及有机质累积率草拟的土壤养分流失分级标准来判断 ,三峡库区小流域养分流失量 ...
蔡崇法 丁树文 等
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Integrative Conservation, Volume 4, Issue 3, Page 405-415, September 2025.Assessing the genetic diversity of edible insects harvested from the wild is a pre‐requisite for designing conservation and management policies. The caterpillars of Gynanisa maja (Saturniidae) are harvested in large numbers in mopane woodlands in southern Africa, where they represent a seasonal source of income and nutrition to many rural communities ...
Zwannda Nethavhani +3 more
wiley +1 more source
Integrative Conservation, Volume 4, Issue 2, Page 246-253, June 2025.After the great Chinese poet Qu Yuan (屈原) was exiled to Xupu (溆浦) county in Hu' nan province, he described the forest there as follows: “mysterious is the deep forest, the place where Yuán yòu dwell (深林杳以冥冥兮,乃猿狖之所居).” What is the referent of the name Yuán yòu in this sentence?
Kefeng Niu
wiley +1 more source