Results 81 to 90 of about 3,716 (159)
Progress Analysis and Development Prospects of Soil Ecological and Environmental Effects of Interlayer Construction [PDF]
[Objective] This study systematically summarized and analyzed the current application status, technical characteristics, and environmental benefits of interlayer construction in soil improvement, nutrient cycling, ecological restoration, and crop ...
CHEN Jihong +7 more
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Taking stock of climate action for a healthy and thriving future [PDF]
Human health is inextricably linked to climate change, as the increasing frequency and severity of extreme weather events, such as heatwaves, floods, and hurricanes pose direct and indirect threats to human life and well-being.
Bai, Y. +75 more
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Shuitu Baochi Xuebao, 2021 为探讨自然环境要素对典型干旱事件的响应与路径，以2019年厄尔尼诺极端干旱事件为背景，在气象站观测数据基础上识别出1个干旱年份（2019年）和1个正常年份（2013年），使用landsat8影像反演了哈尼梯田区2个年份的地表温度（TEM）、土壤水分（TVDI）、植被覆盖（NDVI）、地表水体（NDWI）等自然环境要素数据，进一步探讨了哈尼梯自然环境要素对极端干旱事件的响应状态、相互作用、影响路径等问题。结果表明：哈尼梯田区在极端干旱事件下气温增加了约2℃，植被指数下降了约0.04，土壤水分指数增加了约0.
丁银平, 刘志林, 角媛梅, 胡涛
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Shuitu Baochi Xuebao, 2023 基于Eagleson的生态水文最优性理论,从区域尺度上,综合多种环境变量,模拟宁夏地区生态水文平衡状态下植被最优盖度,进而确定植被承载力,并研究在不过分消耗土壤水分的前提下不同植被类型的最优盖度。结果表明:(1)在研究期内(2000—2019年),基于Eagleson生态最优性理论得到的平衡植被覆盖度与实际植被覆盖度相关关系为0.86,模型模拟良好,除去农田,宁夏地区的多年平均植被盖度为0.048~0.984,模拟的平衡植被覆盖度为0.153~0.840,植被盖度在空间上具有较好的一致性,南部地区较高 ...
范德政 +5 more
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Evaluation of the Effectiveness of Soil Improvement Measures in Apple Orchards on the Loess Plateau: A Meta-Analysis [PDF]
[Objective] Soil acidification, structure and fertility degradation and poor water-holding capacities are common problems in the apple orchard on the Loess Plateau, effective soil improvement techniques are crucial for enhancing soil quality, and ...
DUAN Shunxia +3 more
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Shuitu Baochi Xuebao, 2006 在山坡地条件下，对兰州百合进行了等高垄作及渗水地膜覆盖栽培技术试验。结果表明，与传统平作技术比较，垄作渗水地膜覆盖使百合商品鳞茎产量增加了21．2％；垄作渗水地膜覆盖时，百合植株的田间高度、茎粗和总叶面积分别增加20．87％，10．99％和25．51％，0～30cm根系鲜重增加了45．12％，百合出苗期至显蕾期地温提高了0．9～2．1℃，耕层土壤含水量增加了1．54～2．94个百分点，地表土壤含水量波动明显弱化。
黄鹏
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The Impact of Litter Decomposition on Soil Organic Carbon Stability in Coastal Shelter Forests Under Thinning [PDF]
[Objective] To elucidate the characteristics of litter decomposition and changes in soil organic carbon (SOC) fractions under thinning, and to reveal the impact of litter decomposition on the stability of SOC in coastal shelter forests under thinning ...
DONG Zhi +5 more
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Shuitu Baochi Xuebao, 2007 在自然降雨条件下,选择25°坡地种植草地雀麦,建立径流试验小区,并在抽穗期进行刈割处理,研究刈割后草地雀麦生物学特性变化及其对坡地水土流失的影响。结果表明:坡地种植草地雀麦,水土流失防治效果显著,可使25°坡地地表年径流量与土壤侵蚀模数达到6 781.7 m3/km2和36.4 t/km2.a,保水、固土能力为93.0%和99.9%。草地雀麦抽穗期刈割,对其固土能力影响不大,仍可保持93.8%,但对其保水能力影响显著,一定程度上可以增加坡面径流流失,使保水能力降低到53.9 ...
孙铁军 +4 more
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Multi-source remote sensing identification of underground coal fires based on the fusion of surface temperature and deformation. [PDF]
Underground coal fires have strong concealment and great harm, not only damaging vegetation and ecological environment, causing serious air pollution, but also easily inducing geological disasters, threatening the safety of life and property of ...
Hao YU +5 more
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Shuitu Baochi Xuebao, 2018 针对冷凉区旱地玉米生产中存在的干旱缺水、低温冷凉、土壤肥力下降等问题，于2011—2016年采用裂区设计，在山西省旱作节水农业—阳曲县河村示范基地，设置了6种不同耕作覆盖处理，研究旱地玉米保护性耕作的土壤环境及产量效应。结果表明：（1）免耕+二元覆盖、条耕+二元覆盖分别较常规旋耕+地膜覆盖平均增加0—200 cm土壤贮水量20.8，32.1 mm；免耕+秸秆半覆盖、条耕+秸秆半覆盖分别较常规旋耕+露地种植平均增加0—200 cm土壤贮水量24.3，16.3 mm。（2 ...
张冬梅 +8 more
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