Shuitu Baochi Xuebao, 2000 在山西省隰县的小区试验表明，膨润土改性沥青乳剂覆盖地面后，可以快速产生草本植被，在暴雨来临前夕植被盖度较高。同时，对覆盖后的地面径流、土壤含水量、土层温度作了观测，初步认为，草本植被的产生是由于覆盖后增温作用、保水作用以及两者的优势协调产生的。
殷海善 王改玲
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
A New Method to Estimate the Cover Management Factor on the Loess Plateau in China [PDF]
[Objective] To investigate the combined effect of crop cover and crop management practices on preventing soil loss and improving the accuracy of C-factor estimation. [Methods] Six millet plots with different treatments, i.
LI Qinglan +4 more
core +1 more source
Analysis of the rainfall threshold for post-fire debris flow initiation: A case study of the debris flow at Ren’eyong gully in Xiangcheng County, Sichuan Province [PDF]
In the early summer of 2014, a wildfire ravaged the Ren’eyong valley in the central Mt. Hengduan region of southwestern China. Following the blaze, debris flows were triggered three times in branch No. 3 due to short-term, low intensity rainfall.
Guisheng HU +4 more
core +1 more source
Effect of Reforestation Tree Species on the Distribution and Stability of Purple Soil Aggregates [PDF]
[Objective] Afforestation following the Grain for Green initiative is a crucial measure to improve soil structure and reduce soil erosion. Understanding the mechanisms of the effects of afforestation tree species on the formation of soil aggregates can ...
HAN Guangzhong +4 more
core +1 more source
Shuitu Baochi Xuebao, 2017 基于2 a田间试验，研究了地膜覆盖对旱作春玉米田土壤有机碳、全氮及其组分的影响，试验包括地膜覆盖玉米田、无覆盖玉米田和裸地休闲3个处理，分层测定了0—40 cm土层有机碳、全氮、颗粒有机碳氮、潜在矿化碳氮和微生物量碳氮含量。结果表明：在0—40 cm土层，各处理间土壤有机碳和全氮含量均无显著差异。与不覆盖相比，地膜覆盖处理0—40 cm土层颗粒有机碳氮及其所占比例分别降低了29.0%，33.3%，29.9%，35.7%；0—10 cm土层潜在矿化碳及其所占比例分别降低了17.8%和16.1 ...
付 鑫, 王 俊, 赵丹丹
doaj
Short-Term Wind Power Prediction Method Based on Multimodal Feature Extraction-Convolutional Neural Network-Long-Short Term Memory Network [PDF]
ObjectivesWeather and random factors can alter the statistical characteristics of errors. Therefore, this study considers feature extraction of various climate factors that affect wind power.
GUO Qian, KUANG Honghai
core +1 more source
Shuitu Baochi Xuebao, 2016 采用田间径流小区定位研究方法，以合溪水库集雨区苗木种植地为研究对象，设置了撒施（对照）、地膜覆盖、秸秆覆盖、区外设置植草缓冲带、条施、穴施6种施肥管理处理小区，探究不同施肥管理模式对合溪水库集雨区苗木地径流氮素流失的影响，筛选最佳施肥管理模式。结果表明：不同施肥管理模式下，苗木地地表径流年总氮素径流流失通量大小顺序为：撒施（对照）＞覆膜＞条施＞穴施＞区外植草缓冲带＞秸秆覆盖，撒施（对照）、地膜覆盖、条施、穴施、区外设置植草缓冲带和秸秆覆盖6种施肥管理模式下的年总氮素径流流失通量分别为：35.61，18 ...
叶照金, 廖, 黄, 吕, 沈
doaj
Dianxin kexue星地融合无线网络（STIN）是实现全球无缝立体覆盖的重要途径。为指导星地融合无线网络实际部署，对上行覆盖性能成因规律进行分析。利用随机几何对星地异频部署场景进行了建模，其中，卫星在轨道上服从一维泊松点过程（PPP）分布，地面基站和用户服从二维PPP分布。基于此，推导了星地融合无线网络上行覆盖概率关于基站密度、轨道倾角等参数的表达式。实验仿真验证了理论推导结果的正确性，并分析了网络设计参数对上行覆盖概率的影响。
李睿雯, 孙耀华, 彭木根
doaj +1 more source
Activity of the Mianzishan-Qingshuiying fault in the southeast margin of the Yinchuan basin [PDF]
Studying the tectonic activity characteristics of the Yinchuan basin is of great significance for understanding the interaction among the three major blocks of Qinghai Tibet, Ordos and Alxa.
Chao Liu +5 more
core +1 more source