Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：习近平总书记给《文史哲》编辑部全体编辑人员的回信,对办好哲学社会科学期刊提出了殷切期望和新的更高要求。《当代修辞学》结合其办刊历史、定位及特色,深化利用现代传媒科技打造高品质学术期刊,在具体的工作实践中,从全方面、多维度落实这一重要回信精神,为加快构建中国特色哲学社会科学,创新发展中国哲学社会科学学科体系、学术体系、话语体系做出应有的贡献。
Subjects: Nursing >> Nursing submitted time 2022-08-17
Abstract： CT, MRI and other imaging examinations are one of the common clinical examinations, especially for tumor patients. In order to enhance the examination site, contrast agent will be injected into the patient''s vein before CT and MRI enhancement scanning. Due to individual differences, some people will have some adverse reactions, such as allergic reactions and gastrointestinal reactions, neurotoxicity, vascular toxicity, nephrotoxicity, etc. Phlebitis is also one of the complications of contrast media. This case discusses the observation of the curative effect of a patient with phlebitis complicated by peripheral venous infusion of contrast agent, who was given local heat clearing and detoxification, swelling and pain relieving traditional Chinese medicine wrapping, and summarizes the relevant clinical practice experience.
Peer Review Status:
Awaiting Review
Subjects: Nursing >> Nursing submitted time 2022-11-06
Abstract： This paper summarized the experience of nursing of integrated Traditional Chinese and Western medicine for a bed-ridden elderly patient with malignant tumor of cervical spine combined with incontinence-associated dermatitis (IAD). Based on the dynamic evaluation and risk assessment, a systematic and integrated nursing plan was carried out, in which structured and targeted skin care, Traditional Chinese Medicine moxibustion and Chinese herbal tea were used jointly. The aim of integrated nursing is to regulate and balance the yin and yang of the whole body, and improve the recovery of the patient.
Peer Review Status:Awaiting Review
Subjects: Geosciences >> Geography submitted time 2021-06-13 Cooperative journals: 《干旱区研究》
Abstract：土壤水分在地表能量交换和气候变化中有重要作用。干旱为常见的自然灾害，土壤水分是反映干旱最直观的指标，利用微波遥感监测地表土壤水分具有明显优势，微波土壤水分产品也在干旱监测中具有重要作用，但由于地表下垫面的差异和反演算法的精度，使土壤水分产品的应用受到了限制，因此，本研究对广泛使用的AMSR-E（Advanced Microwave Scanning Radiometer-Earth Observing System）土壤水分产品在中国范围内的精度及在干旱监测中的作用进行评价。结果表明：AMSR-E能较好的反映站点不同深度的土壤水分情况，大多数站点存在极显著相关关系，但20 cm相关性低于10 cm，且高相关系数区域明显缩小；下垫面为白地的农试站观测的土壤水分和AMSR-E土壤水分产品之间的相关性显著高于种植作物下的农田区这2种数据的相关性；对于大多数下垫面类型，站点土壤水分和AMSR-E土壤水分之间存在明显的正相关关系，且达到极显著相关，对10 cm土壤水分观测，相关性最好的是种植高梁下观测的土壤水分，相关性达到了0.579，对20 cm土壤水分观测，相关性最好的是棉花下观测的土壤水分，相关性达到0.528。春季、夏季和秋季的相关性较高，而冬季相关性略低；在种植作物的情况下，东北、华南和西北地区，站点和AMSR-E土壤水分观测相关性较好，仅考虑白地的情况下，西北、西南和华中区域，这2种数据的相关性更高些；AMSR-E较农试站土壤水分取值范围宽，但不同区域AMSR-E土壤水分取值峰值不同，华北区域2种土壤水分观测分布和波动较为一致；AMSR-E基本能反映北方干旱和南方多雨引起的土壤水分差异趋势；大多数站点和大多数作物类型下，10 cm站点土壤水分和AMSR-E土壤水分相关性较好的情况下，20 cm也会有这样的表现。其次，AMSR-E土壤水分产品提取的土壤水分距平百分率与同期的降水距平百分率之间的相关性较好，尤其在西北地区和北方大部分区域更明显，AMSR-E土壤水分产品能较好的反映降水的波动和干旱的发生状况。
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：新媒体时代下,随着网络技术的发展,信息量不断增加,受众的注意力被极大地从传统媒体上转移了,一方面给传统的广播媒体带来巨大的冲击,另一方面也促使广播电台重新定义自己的媒介地位,确立转型之道。而与新媒体融合是必由之路,但是传统广播媒体存在有许多问题,这些问题直接影响到广播媒体未来的发展之路,因此本文从分析传统广播媒体存在的问题角度出发,提出相应的媒体融合建议,以期能够对广播媒体的发展有所裨益。
Subjects: Geosciences >> Atmospheric Sciences submitted time 2018-10-23 Cooperative journals: 《干旱区地理》
Abstract： 利用北方风蚀区155个气象站点1971—2015年平均风速数据，采用气候趋势分析、空间插值和小波分析等方法分析北方风蚀区平均风速的时空变化趋势。结果表明：近45a 来，北方风蚀区年平均风速为2.70 m•s-1，呈明显减小趋势，其递减速率为0.017 m•(s•a) -1 (α=0.001)，1980s风速减小最快，1990s减小最缓慢,2010s风速出现增大趋势；我国北方风蚀区四季的平均风速均呈现下降趋势，下降速度春季>夏季>秋季>冬季（α=0.001），不同年代不同季节风速变化存在较大差异，2010s除春季外其他季节风速均呈现增大趋势；空间分布上显示，风速变化幅度空间分布差异明显，北方风蚀区内的新疆西北部和东南部、青海、内蒙古中部和东北部、黑龙江以及吉林为风速降低较快的区域，甘肃东南部、宁夏、陕西和山西北部以及新疆的东北部和西部等地区是风速降低不明显的区域。春季和夏季风速降低较快的区域面积扩大，冬季和秋季风速降低较缓的区域扩大；平均风速存在多时间尺度的周期性结构特征，28 a时间尺度左右为风速变化的主周期，平均变化周期为18 a。
submitted time 2023-11-30
Abstract： This article summarizes the effect observation and nursing experience of a case of postoperative bowel cancer treated with Chinese ointment and Chinese medicine retention enema. Based on the theory of TCM syndrome differentiation and care, the patient's symptoms of abdominal distension and constipation were significantly alleviated and the clinical symptoms of abdominal distension and constipation were improved by the combination of TCM ointment and TCM retention enema treatment and routine nursing measures such as diet guidance, emotional nursing, daily living nursing and health knowledge education.
Peer Review Status:Awaiting Review
Subjects: Geosciences >> Geography submitted time 2019-01-11 Cooperative journals: 《干旱区地理》
Abstract：近年来干旱区人工绿洲规模不断扩大造成水资源日益紧张，其可持续利用面临新的挑战。为宏观调控水资源提供依据，本文基于水热平衡原理，以干旱区典型绿洲玛纳斯河流域为研究区，采用2000、2005、2010和2015年的水文气象资料和各年（6~8月）TM遥感影像数据，分析了玛纳斯河流域在温室气体中、高排放（RCP4.5和RCP8.5）两种气候情景下，以及理想绿洲结构（AbdEI-Ghani）、现有绿洲结构两种绿洲分布情景下的绿洲适宜规模。研究结果显示：玛纳斯河流域2005、2010、2015年实际绿洲面积分别为2000年实际绿洲面积的109%，114.91%，92.39%；2005、2010、2015年适宜绿洲面积分别为2000年适宜绿洲面积的111.39%，118.8%，115.39%。2020年和2030年的结果对比发现，相同气候情景下AbdEI-Ghani绿洲结构的适宜绿洲面积低于现状结构下的绿洲面积，表明如果按照现状趋势发展，绿洲表现出过度开发的趋势。
Subjects: Library Science，Information Science >> Library Science submitted time 2024-04-14
Abstract： Purpose/Significance This article explores the agile governance mechanism of knowledge services in libraries’ metaverse smart learning space in the digital age, aiming to improve service quality and user satisfaction and provide strategic suggestions and decision support for innovation in library knowledge services. Method/Process This study analyzes the current situation of library smart learning spatial knowledge services and metaverse governance. It explores the challenges of library metaverse smart learning spatial knowledge services in agile governance in the digital age. Based on the theory of agile governance, this article constructs a governance mechanism for knowledge services in the library’s metaverse smart learning space. Based on the case of the LSCP My Study metaverse smart learning space, this study explores the feasibility of this governance mechanism in practice. Result/Conclusion Research has shown that agile governance theory provides innovative data governance methods for library metaverse smart learning spatial knowledge services. By implementing agile governance strategies, the library’s metaverse smart learning space has improved service efficiency and enhanced user experience, providing support and impetus for the sustainable development of library knowledge services in the digital age.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》
Abstract： Although visual working memory (VWM) has been studied for decades, the storage mechanism of VWM remains unclear. A strong object-based theory and a weak object-based theory have been proposed for the VWM storage mechanism. The arguments of these two theories focus on whether features from the same dimension can be integrated into the representation of objects stored in VWM. The strong object-based theory claimed that object was a unit of VWM, the capacity of which was not affected by the number of features. However, the recent studies have proved that weak object-based theory because the features from the same dimension (e.g., two colors) cannot be integrated simultaneously into the representation of objects in VWM, and the VWM capacity was constrained by the number of features. The aim of this paper is to explore whether features from the same dimension can be successfully integrated into a representation of objects stored in VWM. Based on the finding of previous study, we proposed that experimental paradigm and stimulus property might be the main factors that influence the integration of same-dimension information into a representation. Two experiments were conducted to test whether these two factors could affect the integration process respectively. Experiment 1 used a recall task to investigate whether experimental paradigm is a main factor to influence the integration of same-dimension features. The results show that, no matter which experimental paradigms, participants were unable to integrated the same-dimension features into a representation. These suggests that experimental paradigm is not a main factor for explaining the failure of the integration of same-dimension features into a representation stored in VWM. Experiment 2 was conducted to explore whether stimulus property could affect the integration of same-dimension features. Two types of stimulus were selected as experimental materials (e.g., meaningless and meaningful objects). We expected that, in meaningful object condition, participants would easily memorize two conjoint colors as one representation because of the integrated clues (the meaningful shapes); in contrast, participants were more likely to memorize the two features separately due to the absence of integrated clues. The results of Experiment 2 show that, the same-dimension features could not be integrated into one representation in both conditions (meaningful and meaningless objects). Thus, Experiment 2 suggests that the same-dimension features could not be integrated into a representation of objects stored in VWM, regardless of the integrated clues. The present study provides supporting evidences for the weak object-based theory by claiming that manipulation of variables such as experimental paradigm and stimulus property exerts no effect on the memorization of same- dimensional features.
Subjects: Nursing >> Nursing submitted time 2023-08-21
Abstract： This article summarizes the nursing points of a patient with pelvic encapsulated effusion after uterine fibroids surgery treated with Huangbai ointment combined with mirabilite external application, including the implementation of traditional Chinese medicine characteristic nursing, pain nursing, emotional adjustment, and dialectical diet using traditional Chinese medicine differentiation. This provides a certain experience and practical basis for the treatment and nursing of such patients with integrated traditional Chinese and Western medicine.
Peer Review Status:Awaiting Review
Subjects: Geosciences >> Geography submitted time 2020-12-17 Cooperative journals: 《干旱区研究》
Abstract：基于植被降水利用效率（rainfall use efficiency, RUE）模型，综合气候、土地利用/覆盖及光学遥感3个维度，分离人为干预（增加/减少）因素，监测生长季RUE时空演变特征，进一步采用地理探测器法探讨其驱动力。结果显示：（1）宝鸡地区经过两轮退耕还林（草）工程，RUE整体上呈提高趋势，尤其是第一轮后（2009—2013年）呈显著提高趋势的像元面积占比最高，达65.69%。全区由第一轮工程实施下（2001—2008年）的以人为干预增加区域为主转变为以人为干预减少为主；（2）夏季降水量最为充裕，春季雨量较差，表现为夏季RUE的提高速率［0.07·(10a)-1］和春季RUE的降低速率［-0.06·(10a)-1］均最为显著。年际、夏秋季，林地的RUE值最高，春季城乡用地的RUE值最高；（3）植被覆盖率、相对湿度、日照时数、粮食总产量、最大风速、降水量、气温、人口密度、造林面积对RUE的相关性依次递减（置信水平95%），植被类型、坡度、坡向对RUE的相关性不显著。交互作用下RUE空间分布的相关性表现为：气候环境因素>自然资源因素>人类活动因素>地理环境因素。随着坡度的增加，RUE呈先增加后减少的变化趋势，在坡度26°～31°出现拐点；造林面积与RUE具有同步增减的变化趋势；植被对RUE的促进作用显著，人口密度对RUE的胁迫作用显著。此外，665.51～679.80 mm的降水量提高RUE的风险最高，集中于陈仓区东-西水平线区域上。
Subjects: Geosciences >> Geography submitted time 2023-04-07 Cooperative journals: 《干旱区地理》
Abstract： Aerodynamic roughness is defined as the height at which the wind speed becomes zero under neutral and stable conditions. It is an important parameter for measuring the momentum and energy exchange between the underlying surface and atmosphere, and it is critical for investigating various surface processes and climate change. However, it has always been difficult to estimate aerodynamic roughness accurately at the regional scale, and there is no unified estimation model presently. Therefore, the parameterization of aerodynamic roughness is a topic worthy of further study. As a long-range monitoring method, remote sensing technology has the advantages of macroscopic and rapid acquisition of ground feature information, and its ability to achieve dynamic monitoring at the regional scale or a larger scale in estimating the aerodynamic roughness of vegetation-covered surfaces. Therefore, using remote sensing technology to estimate aerodynamic roughness has become a hot issue at home and abroad in recent years. In this study, the progress of research on aerodynamic roughness at home and abroad in recent years is systematically described. The estimation methods are divided into two categories: one is based on measured data, and the other is the remote sensing method, which is rapidly advancing. This study primarily introduces the method of estimating the aerodynamic roughness of the underlying surface of vegetation by remote sensing technology. Methods based on measured data include the canopy height fixed ratio method, field experiment method, and wind tunnel method; remote sensing methods include vegetation index, LIDAR, and multisource remote sensing synergistic methods. In addition, the advantages and disadvantages of the different methods are summarized at the end of each section. Finally, this study analyses the influence of meteorological factors and morphological characteristics of surface roughness elements on aerodynamic roughness and discusses the development trends and problems of remote sensing techniques in estimating aerodynamic roughness, aiming to provide ideas for subsequent research on remote sensing monitoring of aerodynamic roughness.
Subjects: Biology >> Botany >> Applied botany submitted time 2024-03-26 Cooperative journals: 《广西植物》
Abstract： To promote the restoration and reconstruction of ecosystem in the water-land ecotone, based on typical sample investigation, the variation patterns of vegetation species composition and diversity, and soil nutrients under different vegetation types were studied using Pearson correlation coefficient method and redundancy analysis method. The results were as follows: (1) There were significant differences in plant community structure and species diversity of different vegetation types (gravel zone, grass zone, shrub-grass zone, trees zone). As the submersed duration decreased, the water-land ecotone gradually evolved from scattered herbaceous plant communities to grass, shrub, and tree plant communities, and the α diversity of vegetation species (Shannon-Wiener index, Pielou index and Simpson index ) and vegetation coverage showed a gradually increasing trend, which were lowest value on the gravel zone and the highest on the trees zone. (2) There were significant differences in soil nutrient content among different vegetation types. With the decreased of submersed duration, soil organic matter content gradually increased, while soil water content, available nitrogen, available phosphorus, and available potassium showed a trend of first increasing and then decreasing, the maximum values of these nutrients mostly occurred in shrub-grass zone or trees zone, followed by grass zone, and gravel zone was the lowest. (3) Correlation and redundancy analysis showed that soil available nitrogen, available potassium, available phosphorus and organic matter were significantly positively correlated with various indicators of vegetation species α diversity, among which soil available nitrogen and available potassium had the strongest correlation with vegetation species diversity. In conclusion: different vegetation types in the Lijiang water-land ecotone have heterogeneous patterns of vegetation species composition and diversity as well as soil nutrients. Moderate submergence is beneficial for vegetation community aggregation and promoting soil nutrient accumulation. Herbaceous plants have stronger adaptability to moderate submergence environments. During the ecological restoration process of the Lijiang water-land ecotone, it is necessary to design restoration plans for different vegetation types and fully consider the relationship between vegetation species diversity and soil available nutrients.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-18 Cooperative journals: 《材料研究学报》
Abstract： Three high-performance continuous fibers PBO, Armos and Twaron were on-line modified by atmospheric air dielectric barrier discharge (DBD) plasma. Then the modified fibers were characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), atomic force microscopy (AFM), measurements of single fiber tensile strength (SFTS) and interlaminar shear strength (ILSS) in terms of their surface chemical composition, morphology, roughness and tensile strength, as well as interfacial adhesion properties of fiber reinforced composites respectively. Results showed that the oxygen and nitrogen content, and the roughness of fiber surface after DBD plasma modification with PBO, Armos and Twaron were all increased, and the ILSS of their composites were enhanced by 18.6%, 10.2% and 24.8%, respectively. However, it is important to note that there were significant differences in the increment of oxygen and nitrogen content as well as the etching effect of the surface for the three modified fibers, which might be related to the difference of their molecular structures and thermal performances. Apparently, the atmospheric air dielectric barrier discharge (DBD) plasma treatment is proved to be an effective means to improve the surface performance of the fibers while no harm to their SFTS and thereby the ILSS of the composite composed of a resin with the three fibers may obviously be enhanced.
Subjects: Biology >> Botany >> Applied botany submitted time 2019-11-15 Cooperative journals: 《广西植物》
Abstract：评估四种野菜的营养价值，为指导凉山彝族人民平衡膳食，合理营养提供参考，为科学开发和利用凉山的野菜资源提供理论依据，也为发展山地农业多样性提供参考。采用国家标准方法，对四川凉山彝族喜食的四种野菜，即楤木、牛口刺、紫花碎米荠、鞘柄菝葜进行氨基酸、脂肪、能量、维生素和矿物质等营养成分进行检测分析含量。四种野菜中至少含17种氨基酸，其中含7种人体必需氨基酸和多种药用氨基酸。四种野菜中，楤木中谷氨酸含量较高，为0.41%，鞘柄菝葜、紫花碎米荠和牛口刺中天门冬氨酸含量较高，分别为0.80%、0.33%和0.05%；牛口刺的必须氨基酸/氨基酸总量（EAA/TAA）及必须氨基酸/非必须氨基酸（EAA/NEAA）最高，分别为为34.44%和67.78%。与《中国食物成分表》上栽培根菜类和叶菜类的同类营养成分相比，紫花碎米荠的蛋白质含量较高，为3.26%，且富含多种维生素（VA、VB、VB2、VC、VE和β-胡萝卜素）。凉山彝人喜食这四种野菜与其营养需求、饮食习惯和文化息息相关。四种野菜具有高能量、 低钠、粗纤维含量较低、口感较好、富含矿物质元素（铜、铁、锌、锰和镁）的特点，有较高的营养价值和保健功效。
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-11-29 Cooperative journals: 《计算机应用研究》
Abstract： In order to solve the problems of multiple schema matching in the process of integrating multi-source heterogeneous civil aviation passenger service data, such as low efficiency, low accuracy and the complexity of obtaining complete schema information, this paper proposed the multiple schema matching method based on SimHash and mixed similarity. Firstly, the method calculated the weight of feature units based on PMI, and generated the signature of columns by SimHash to represent attribute features to reduce feature dimension. Further, it employed K-means++ to generate candidate matching sets by clustering the columns. Finally, it constructed the mapping graph of attributes based on attributes’ mixed similarity, and displayed the matching relationship between attributes intuitively. Meanwhile, it improved efficiency of multiple schema matching. The experimental results verify the feasibility of the proposed method. The method provides a new solution for efficiently resolving the schema conflict in the process of integrating multi-source heterogeneous civil aviation passenger service data.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2022-05-10 Cooperative journals: 《计算机应用研究》
Abstract： The drawbacks of existing task recommendation in mobile crowd sensing were as follows: on the one hand, not fully considering the influence of spatial-temporal information on worker preference led to low accuracy of recommendation; On the other hand, ignoring the impact of task popularity on recommendation led to poor recommendation coverage. To solve these drawbacks, this paper proposed a novel task recommendation approach based on spatial-temporal information and task popularity analysis in mobile crowd sensing. Firstly, this approach made full use of the relevant information contained in the worker execution record (e. g. , the time and location of worker performing tasks) to accurately predict the preference of worker for performing tasks. Secondly, in order to reduce the impact of popular tasks on recommendation coverage, this paper analyzed task popularity based on worker reputation and task execution record, and designed appropriate task popularity penalty factor. Then, combining worker preference and task popularity penalty factor, this paper provided an appropriate task recommendation list for each worker. Finally, the experimental results show that compared with the existing baseline methods, the proposed method improves the recommendation accuracy by 3.5% and the recommendation coverage by 25%.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2023-12-19 Cooperative journals: 《中国全科医学》
Abstract： Background Asthma is one of the most common chronic respiratory diseases. Understanding its prevalence，trend and risk factors is of great significance to take targeted preventive and control measures. Objective To analyze the prevalence，burden and trend of asthma in China from 1990 to 2019，and analyze the rank of asthma risk factors，so as to provide a basis for effective prevention and control of asthma in China. Methods Based on the Global Burden of Disease Database 2019（GBD 2019），disability-adjusted life years（DALY），years of life lost（YLL），years lived with disability（YLD） and prevalence rates were used to analyse trends in the burden of disease by gender and age in China from 1990-2019. Changes in asthma risk factors were analyzed by population attributable faction（PAF）of standardized DALY rate and mortality rate. Results In 2019，the age-standardized DALY rate，YLL rate and YLD rate for asthma in China were 102.81/ 100 000，24.50/100 000 and 78.31/100 000，respectively，and the standardized prevalence rate was 1 974.16 /100 000，which was higher in all males than females，and higher in the 1-9 and ≥ 65 years old groups than the other groups. From 1990-2019，the crude YLL rate was gradually decreasing in the ≥ 40 years old group，with DALY crude rates，YLD crude rates and prevalence all crossing over in the <65 years old group，but then showing a decreasing trend year on year. Secondary risk factors for asthma were ranked in order of tobacco use，high body mass index（BMI）and occupational hazards. Tobacco uses consistently ranked as the top risk factor for the burden of asthma，with high BMI rising to second place in 2019 and its PAF for mortality rising to first place. Conclusion From 1990-2019，there was an overall downward trend in per capita health loss in the asthma population，but the burden of asthma remained at a high level in the 1-9 and ≥ 65 years age groups. The burden of asthma disease was higher in men than women. The PAF of asthma-related risk factors has changed，with a relative decline in the importance of occupational hazards and the increasingly prominent impact of tobacco use and high BMI. The focus of asthma prevention and control can be focused on screening of high-risk groups（aged 1-9 years，aged ≥ 65 years，males，tobacco use，with occupational exposure）， smoking cessation education，weight control，monitoring and management of occupational settings.
Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2018-11-08 Cooperative journals: 《干旱区研究》
Abstract：基于2000—2014年的MODIS数据和Landsat数据，利用温度植被干旱指数反映地表湿润状况，分析了退耕还林工程以来黄土高原地表湿润状况与植被覆盖的时空变化特征及其相互关系。①2001—2014年黄土高原归一化植被指数增速为6.3%•(10a)-1，温度植被干旱指数降速为-4.5%•(10a)-1，植被覆盖与地表湿润状况均呈增加趋势，分布呈“东南高、西北低”的特征，大体上可以看出两者具有正的空间相关性。②从TVDI和NDVI的变化趋势来看，黄土高原植被覆盖与地表湿润状况整体上呈现出增加趋势。空间分布上反映出，植被覆盖变化基本上与地表湿润状况变化分布一致，但是仍然存在区域性差异。③从相关系数来看，黄土高原植被覆盖与地表湿润状况呈现出正相关。从变化趋势对应关系来看，14a间黄土高原东北—西南一线山地地区植被覆盖与地表湿润状况变化有利于生态环境改善。人类活动强烈的平原地带极不利于生态环境改善。值得注意的是，退耕还林重点区是未来生态环境变化监测和管理的重点区域，以免引起再次退化。
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