Effects of Different Ratios of Mineral-solubilizing Microbes and Water-retaining Agents on Soil Nutrients and Enzyme Activities [PDF]
, 2022 [Objective] The effects of mixed additions of a water-retaining agent and bacterial agents on soil characteristics were determined in order to provide a theoretical basis for promoting mine vegetation restoration.
Chen Meiling +6 more
core +1 more source
Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
Nutrient‐specific compensation for seasonal cold stress in a free‐ranging temperate colobine monkey
Functional Ecology, Volume 32, Issue 9, Page 2170-2180, September 2018., 2018 Plain Language Summary Abstract Homeostatic responses of animals to environmentally induced changes in nutrient requirements provide a powerful basis for predictive ecological models, and yet, such responses are virtually unstudied in the wild. We tested for macronutrient‐specific compensatory feeding responses by free‐ranging golden snub‐nosed monkeys
Song‐Tao Guo +11 more
wiley +1 more source
Analysis on Land Suitability for Maize and Rapeseed Production Based on Data Mining Method [PDF]
, 2022 [Objective] Conducting multi-crop land suitability analysis was carried out in order to provide an accurate and effective method for crop planning, land use planning, and management of agricultural production.
Lin Yan, Zhang Chen, Zhou Hua
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
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
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
Characteristics of nitrogen and phosphorus losses from swine production systems in Jiulong River watershed [PDF]
, 2005 由于对畜禽粪便的处置和管理不当,氮、磷养分随粪便大量流失,不仅带来日益突出的环境问题,还造成了资源的浪费。目前国际上多采用养分平衡方法研究和评价畜牧养殖场养分流失状况及其潜在的环境风险程度。选取福建省九龙江流域92家养猪场,采用养分平衡分析方法研究了该流域养猪场养分流失状况及主要影响因素。结果表明:大部分养猪场的氮磷养分输入量远远大于养分有效输出量,表明养分大量流失,养殖系统的环境风险程度极高;随着养猪场规模的增大,氮、磷的不平衡程度呈下降趋势;生态型养殖模式有利于促进资源综合利用,减少养分流失 ...
曹文志 +5 more
core
Shuitu Baochi Xuebao, 2006 在云南19.5°红壤坡耕地上设置水土流失综合治理试验样方,观测水土流失控制效果。结果表明,各观测样方的地表径流量、土壤流失和养分流失按照裸地(CK1)>传统单作玉米区(CK2)>植物篱玉米秸秆覆盖区>植物篱麻袋覆盖区>植物篱牧草活覆盖区依次降低。2004年较2003年降雨和径流明显增加,各处理土壤养分流失的增幅显著低于土壤流失的增幅;土壤养分流失与施肥量显著正相关;植物篱 覆盖区的养分利用率比传统单作玉米区极显著提高,养分利用率与施肥量负相关。植物篱麻袋覆盖区和植物篱牧草活覆盖区,地表径流减少22.7%~
米艳华 +5 more
doaj +2 more sources