Bangladesh Journal of Botany最新文献_第8页

Soil Salinity, Its Inversion and Spatial Distribution Characteristics in Agricultural Fields Using Remote Sensing Data 农田土壤盐分遥感反演及空间分布特征

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68191

Hui Kong, Dan Wu, Liangyan Yan

{"title":"Soil Salinity, Its Inversion and Spatial Distribution Characteristics in Agricultural Fields Using Remote Sensing Data","authors":"Hui Kong, Dan Wu, Liangyan Yan","doi":"10.3329/bjb.v52i20.68191","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68191","url":null,"abstract":"Soil salinization is an urgent problem in the arid and semi-arid regions that damages soil ecology and affects agricultural growths. Timely supervision and monitoring of soil salinity are essential to reach the most sustainable improvement goals in arid and semi-arid regions. In the present study, the soil of Aktau region in Xinjiang, China was collected to build a remote sensing based inversion model for identifying soil salinity hazards. Results showed that Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), and Difference Vegetation Index (DVI) were correlated (P < 0.01) with the model inversion, having correlation coefficients of -0.735, -0.858, and -0.774, respectively. All these were suitable for the construction of the soil salinity inversion model where the optimal parameters of model accuracy were above 85% and prediction results were accurate credible and consistent with the measured data. The NDWI extracted from multispectral images was used as the key parameter of the soil salinity inversion model, which could obtain a better spatial distribution of soil salinity. The remote sensing inversion model of soil salinity provides a theoretical basis for the management of soil salinization and sustainable utilization of agricultural resources in the Aktau region of Xinjiang. Bangladesh J. Bot. 52(2): 437-443, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of environmental protection policy on non-point source pollution of planting industry 环境保护政策对种植业非点源污染的影响

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68221

Zhaogang Fu, Shanshan Hu, Yitong Deng, Meihui Qi

引用次数: 0

Soil moisture dynamics and evapotranspiration water consumption in spring maize 春玉米土壤水分动态与蒸散耗水量

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68197

Jing Zhang, Jing-tang He

{"title":"Soil moisture dynamics and evapotranspiration water consumption in spring maize","authors":"Jing Zhang, Jing-tang He","doi":"10.3329/bjb.v52i2.68197","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68197","url":null,"abstract":"In the present study the dynamics of soil reservoir and evapotranspiration in dry farmland were thoroughly analyzed based on the long-term positioning test and investigation of soil moisture dynamic changes of spring maize. It was found that the vertical distribution curve of annual average soil water content in spring maize field was “single peak and single valley” type. Compared with wet (high water) years, the regulation depth of soil reservoir in the field during the growth period of Spring Maize in dry years moved up and becomes shallow; The soil moisture of Spring Maize in dry (low water) years was more stable than that in wet years. Under the two precipitation years, the “water level” of soil reservoir showed the characteristics of first rising, then falling, and then rising patterns. This study clarified the water source of evapotranspiration water consumption during the growth period of spring maize, evaluated the water balance of farmland ecosystem, and a preliminary understanding of the formation and restoration process of soil dry layer, which provided data support and theoretical basis for improving the practice of existing knowledge of production practice and sustainable development of dry farming.\u0000Bangladesh J. Bot. 52(2): 473-478, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46001552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of reciprocal cross on major characters and yield of two sweet-waxy corn (Zea Mays L.) Varieties 正反交对两个甜糯玉米品种主要性状及产量的影响

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68249

X. Ning, Rei Chen, Longxing Jiang, Nan Wu, Baiming Yang, Ying Xu, Mingkun Wang

引用次数: 0

Hypodematium guilinense, sp. Nov. – a new fern species From China 中国蕨类一新种——桂蕨Hypodematium guilinense，sp.11

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68229

Xiaojuan Li, Haoliang Yang, Meiling Zhang, Jianxiu Li

引用次数: 0

Haploid doubling effect of waxy maize under different ecological environment 不同生态环境下糯玉米的单倍体加倍效应

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68215

Xilin Ning, XU Ying, Long Jiang, Baiming Yang, Rui Chen, Mingkun Wang, WU Nan

引用次数: 0

Influencing factors analysis of corn price fluctuation in shaanxi province, CHINA 陕西省玉米价格波动影响因素分析

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68231

Lifeng Guo, Jianglong Shen, Youhui Li, Jiao Ai

{"title":"Influencing factors analysis of corn price fluctuation in shaanxi province, CHINA","authors":"Lifeng Guo, Jianglong Shen, Youhui Li, Jiao Ai","doi":"10.3329/bjb.v52i2.68231","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68231","url":null,"abstract":"Corn is one of the most important grain crops in China, and also in Shaanxi Province. In order to master the changing law of corn market, realize reasonable regulation and control, and promote the stable development of the market, it is necessary to conduct in-depth research on the influencing factors of corn price fluctuation in Shaanxi Province. Based on the data of Shaanxi Province from 2000 to 2021, in the present study, the main factors affecting the price fluctuation in Shaanxi Province was explored by using factor analysis method. Eight indexes including corn yield, production cost, disaster-affected area, disposable income of rural residents, disposable income of urban residents, corn demand, wheat price index and consumer price were selected as factors affecting corn price fluctuation. Results showed that the disaster area and corn demand were the main factors affecting the corn price fluctuation in Shaanxi Province, and the disposable income of urban and rural residents had little impact on the corn price fluctuation. Governments and industry groups can therefore take preventive measures to limit the impact of major climate events on corn markets and economies. It also assesses the appropriate proportion of corn used for feed and energy production to ensure adequate supply and stable prices.\u0000Bangladesh J. Bot. 52(2): 607-612, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69453775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of microbial-phytoremediation on plant diversity and soil physico-chemical properties in northern shaanxi coal mining area, china 微生物-植物修复对陕北矿区植物多样性和土壤理化性质的影响

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68290

Shenglan Ye, Yang Zhang, Xiaoxiao Shu

{"title":"Effects of microbial-phytoremediation on plant diversity and soil physico-chemical properties in northern shaanxi coal mining area, china","authors":"Shenglan Ye, Yang Zhang, Xiaoxiao Shu","doi":"10.3329/bjb.v52i2.68290","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68290","url":null,"abstract":"Effects of different microorganisms-plant combination on the diversity of plant and soil physics in the mining area were studied. Results showed that the number of species, total number and coverage of Soil Remediation + Vetiver + Sea-buckthorn (AH) treatment were 13, 298 and 89.8%, respectively, which were significantly higher than other treatments. Soil water content in different treatments was the highest at 20 cm. The pH value of the different treatments decreased significantly, and the pH value of AH was the lowest (7.14). The total nitrogen (TN) content of GH and GS were the highest, which were 0.54 and 0.51 g/kg, respectively. The contents of phosphorus (P) and available potassium (K) were the highest in AX treatment, reaching 57.1 and 194 mg/kg. Treatment with different inoculants significantly increased soil enzyme activity. The urease activity of GH was the highest, which was 0.872 mg/g. The sucrase activity and catalase content of AH and AX were the highest, which were 8.99, 8.53 mg/g and 2.145 ml/g, 1.872 ml/g, respectively. The phosphatase activities of QH and AH treatments were the highest at 234 and 229 mg/g, which were 6 times and 5.9 times than that of CK. Comprehensive analysis showed that microbial inoculum + mixed seeding mode can effectively improve soil fertility and enzyme activity, and the effect of AH was the best.\u0000Bangladesh J. Bot. 52(2): 495-502, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69453781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes and relationship of climate and late-rice yield in chenzhou city of south hunan province of CHINA 湘南郴州市气候变化与晚稻产量的关系

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68251

Yansong Xiao, Sheng Li, Qian Zhou, Lijuan Li, Zhihong He, Qi Hu, Zhipeng Tan, Fengying Ma, Jiuwei Hu, Yiyi Xiao, Rujing Deng

{"title":"Changes and relationship of climate and late-rice yield in chenzhou city of south hunan province of CHINA","authors":"Yansong Xiao, Sheng Li, Qian Zhou, Lijuan Li, Zhihong He, Qi Hu, Zhipeng Tan, Fengying Ma, Jiuwei Hu, Yiyi Xiao, Rujing Deng","doi":"10.3329/bjb.v52i20.68251","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68251","url":null,"abstract":"The changes and relationship of climate parameters and late-rice yield per unit area during the growth periods of late-rice from 2010 to 2019 were quantitatively analyzed in order to provide scientific guidance for countermeasures against climate change and sustainable production of late-rice. The climate parameters include cumulative daily sunshine hours (S), mean daily temperature (T), cumulative daily precipitation (P), mean daily relative humidity (H), daily highest and lowest temperatures (Th and Tl), days of high temperatures (DT ≥ 30℃ and DTh ≥ 35℃) and low temperature (DTl < 15℃). Results showed that: (i) Late-rice yield was significantly increased quadratically from 5621.33 kg hm2 in 2010 to 6333.65 kg hm2 in 2019 with a mean of 5959.2 kg hm2. (ii ) According to the suitable climate conditions for growth of late-rice, T and P were low but H was suitable in the whole field growth period of late-rice, T was suitable in the transplanting-tillering stage, but was low in the booting-heading and milk ripening-mature stage. DT ≥ 30℃, DTh ≥ 35℃ and DTl < 15℃ was meanly 7.7, 7.5 and 6.4 d, respectively, which showed possible occurrence of the damages to late-rice due to high and low temperatures. iii) Only T, Th and Tl in the booting-heading stage showed significant positive correlation with year, and the optimal regression models were in quadratic and exponential types. The climate parameters of S, T and Th in the boot-heading stage were significantly positively correlated with late-rice yield, and the optimal regression models were all in quadratic types. Daily highest temperature (Th) affected late-rice yield most (61.04%), followed by T (36.50%), and S affected least (2.46%). Considering the current conflict in the field planting periods between tobacco and late-rice, late rice varieties needs to be bred with short growth period and high tolerance to both high and low temperatures. Bangladesh J. Bot. 52(2): 639-647, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon storage in arbor forests under the background of carbon neutrality 碳中和背景下乔木林碳储量研究

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68286

Li Qi, Yanan Li

引用次数: 0