Results 11 to 20 of about 3,716 (159)

Dynamic Monitoring of Soil and Water Loss at Wuding River Basin, a Typical Tributary of Middle Reaches of Yellow River [PDF]

, 2022
[Objective] The distribution and dynamic characteristics of soil and water loss at Wuding River, a typical coarse sediment tributary in the middle reaches of the Yellow River, were analyzed in order to provide a scientific basis for soil and water ...
Zhang Dong, Zhao Hui, Zhao Yuan
core   +1 more source

Leveraging climate actions for healthy ageing [PDF]

, 2023
As China’s population ages rapidly, the health risks associated with a changing climate are becoming more threatening. The 2022 China report of the Lancet Countdown, led by Tsinghua University with the contributions of 73 experts from 23 leading global ...
Bai, Y., Cai, W., Callaghan, M., Chang, N., Chen, B., Chen, H., Cheng, L., Cui, X., Dai, H., Danna, B., Dong, W., Fan, W., Fang, X., Fung, M., Gao, T., Geng, Y., Gong, P., Guan, D., Hu, Y., Hua, J., Huang, C., Huang, H., Huang, J., Jiang, L., Jiang, Q., Jiang, X., Jin, H., Kiesewetter, G., Liang, L., Lin, B., Lin, H., Liu, H., Liu, Q., Liu, T., Liu, X., Liu, X., Liu, Z., Liu, Z., Lou, S., Lu, C., Luo, Y., Luo, Z., Meng, W., Miao, H., Ren, C., Romanello, M., Schöpp, W., Su, J., Tang, X., Wang, C., Wang, Q., Warnecke, L., Wen, S., Winiwarter, W., Xie, Y., Xu, B., Yan, Y., Yang, X., Yao, F., Yu, L., Yuan, J., Zeng, Y., Zhang, C., Zhang, J., Zhang, L., Zhang, R., Zhang, S., Zhang, S., Zhang, S., Zhao, Q., Zheng, D., Zhou, H., Zhou, J.   +72 more
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林火前后坡面覆盖类型对产流产沙影响的模拟试验

Shuitu Baochi Xuebao, 2022
通过室内模拟降雨试验,设置3种降雨强度(30,60,90 mm/h)和3种地表覆盖类型(裸土坡面、1 cm马尾松枯落物覆盖、1 cm马尾松灰烬覆盖),研究林火发生前后不同地表覆盖下的坡面产流产沙过程,明确枯落物和植物灰烬覆盖的减流减沙效益。结果表明:(1)相比裸坡,枯落物和灰烬覆盖下的坡面初始产流时间分别延长33%~80%和51%~200%,灰烬覆盖对延缓产流的效果更为明显;(2)相比裸坡,枯落物覆盖的减流效果稳定在12%~36%,而灰烬覆盖在中小雨强的减流效果高于70%,在90 mm ...
王冠, 吴文清, 刘明明, 黄柔
doaj  

Soil and Water Conservation and Ecological Benefits of Forest Ecosystem in New Urban Karst Areas of Central Guizhou Province [PDF]

, 2022
[Objective] Soil and water conservation and ecological benefits of forest ecosystem in the new urban karst areas of Guanshanhu District, Guiyang City in Central Guizhou Province were studied to scientifically evaluate the achievements of ecological ...
Dai Zhengjiao, Deng Ou, Jin Yu, Li Ruoshuang, Li Yiqiu, Wu Yalin, Xiao Li   +6 more
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有机地表覆盖材料对树穴土壤理化性质的影响

Shuitu Baochi Xuebao, 2020
通过大田试验，研究有机地表覆盖材料对土壤理化性质的影响。以圆明园公园内的桑葚林（Morus alba L.）树穴土壤为研究对象设置6种处理，即水性聚氨酯胶黏剂有机覆盖垫（A）、水性聚氨酯与淀粉胶黏剂混合比9：1有机覆盖垫（B）、水性聚氨酯与淀粉胶黏剂混合比8：2有机覆盖垫（C）、水性聚氨酯与淀粉胶黏剂混合比7：3有机覆盖垫（D）、木片覆盖（M）和无覆盖处理（CK），对不同地表覆盖材料的覆盖效果进行评价。结果表明：（1）总体来看，1年后不同有机地表覆盖材料覆盖下树穴土壤的容重、孔隙度 ...
李啸冲, 孙向阳, 李素艳, 王心语, 熊凯毅, 郑燚, 周文志   +6 more
doaj  

橡胶凋落叶覆盖对胶园土壤部分理化性质的影响

Shuitu Baochi Xuebao, 2020
通过田间原位试验，研究橡胶凋落叶覆盖对平地和坡地胶园表层土壤理化性质的影响。试验设置平地凋落叶覆盖、平地凋落叶去除、坡地凋落叶覆盖和坡地凋落叶去除4个处理。结果表明：（1）平地胶园表层土壤含水率大于坡地，凋落叶覆盖较凋落叶去除的坡地土壤含水率显著增加；（2）表层土壤含水率与降雨量呈线性正相关关系，方程斜率表现为坡地大于平地；（3）平地和坡地凋落叶覆盖较其凋落叶去除的土壤pH分别提高了0.09~0.74和-0.09~0.47个单位；（4）与凋落叶去除相比，凋落叶覆盖的有机碳、全氮和碳氮比均有所增加 ...
薛欣欣, 吴小平, 罗微, 魏云霞, 罗雪华, 王文斌, 王大鹏, 张永发, 赵春梅   +8 more
doaj  

作物覆盖度对土壤侵蚀的影响

Shuitu Baochi Xuebao, 2022
为研究传统耕作模式下坡耕地作物覆盖度对土壤侵蚀的影响,利用冬小麦不同的种植密度和生长期来模拟作物不同的覆盖度情况。采用人工模拟降雨方法测定0,150万,250万,350万,450万株/hm2 5种不同密度处理在不同生育期的覆盖度、地表径流和土壤侵蚀,分析作物覆盖度对土壤侵蚀的影响。结果表明:(1)坡耕地作物种植密度的不同导致覆盖度产生差异,对土壤侵蚀有明显的影响,作物覆盖度一般随种植密度的增加而增加,但如果密度过大,由于生长状况不佳,覆盖度反而变小,表现为7.5万株/hm2时覆盖度最大 ...
彭琼, 刘宝元, 曹琦, 刘逸滨
doaj  

Exploration on the Stratification of the Ground Substrate Survey and the Design and Construction of Its Testing Indicator System [PDF]

The ground substrate layer is the main carrier of the material and energy cycle of the earth’s surface. At present, it is essential to have a suitable ground substrate stratification and testing index system for conducting an effective ground substrate ...
Aibing HAO, Bing LU, Fanpeng KONG, Hongxing HOU, Jia LIU, Jiufen LIU, Ke YANG, Liming XU, Ruyi BAO, Tian QIN, Xiaofeng ZHAO, Xiaohuang LIU, Zhansheng CHEN, Ziqi LI   +13 more
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Effects of Different Vegetation Coverage of Vetiver in Reducing Ditch Erosion and C, N, P Loss [PDF]

, 2023
[Objective] The influences of plants on reducing ditch erosion and C, N and P loss were studied in order to provide technical support for the prevention of ditch erosion and pollution control.
Chen Tingting, Guo Hao, Huang Zhigang, Li Yong, Wang Xu, Wu Zongmeng, Yang Cuihong, Yang Jiangyi, Zhou Xiaoqi   +8 more
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The collective application of shorebird tracking data to conservation

Conservation Biology, EarlyView.
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison, Candace Stenzel, Alexandra Anderson, Jessica Howell, Richard B. Lanctot, Marley Aikens, Joaquín Aldabe, Liam A. Berigan, Joël Bêty, Erik Blomberg, Juliana Bosi de Almeida, Andy J. Boyce, David W. Bradley, Stephen Brown, Jay Carlisle, Edward Cheskey, Katherine Christie, Sylvain Christin, Rob Clay, Ashley Dayer, Jill L. Deppe, Willow English, Scott A. Flemming, Olivier Gilg, Christine Gilroy, Susan Heath, Jason M. Hill, J. Mark Hipfner, James A. Johnson, Luanne Johnson, Bart Kempenaers, Paul Knaga, Eunbi Kwon, Benjamin J. Lagassé, Jean‐François Lamarre, Christopher Latty, Don‐Jean Léandri‐Breton, Nicolas Lecomte, Pam Loring, Laura A. McDuffie, Rebecca McGuire, Scott Moorhead, Juan G. Navedo, David Newstead, Erica Nol, Alina Olalla‐Kerstupp, Bridget Olson, Elizabeth Olson, Julie Paquet, Allison K. Pierce, Jennie Rausch, Kevin Regan, Matthew E. Reiter, Amber M. Roth, Mike Russell, Daniel Ruthrauff, Sarah T. Saalfeld, Amy L. Scarpignato, Shiloh Schulte, Nathan R. Senner, Joseph A. M. Smith, Paul A. Smith, Zach Spector, Kelly Srigley Werner, Michelle L. Stantial, Audrey R. Taylor, T. Lee Tibbitts, Mihai Valcu, Nils Warnock, Walter Wehtje, Brad Winn, Michael B. Wunder   +71 more
wiley   +1 more source