Soil Quality Analysis of Typical Dendrocalamopsis oldhami Forests in Pingyang County,Zhejiang Province
-
摘要: 为科学评价浙江平阳县地区绿竹林土壤环境质量,选取平阳县典型绿竹林样地,取样分析了土壤物理和化学性质及土壤酶活性,并采用主成分法对土壤因子进行分析。结果显示:研究区绿竹林土壤容重在1.37~1.51 g·cm-3,含水率在24.33%~27.67%,孔隙度在43.15%~48.08%之间。土壤全氮、全磷、全钾含量分别在1.09~2.29 g·kg-1、0.38~0.61 g·kg-1、21.74~34.41 g·kg-1。土壤碱解氮、有效磷和速效钾含量分别在100.98~119.60 mg·kg-1、2.25~4.94 mg·kg-1和150.56~213.56 mg·kg-1之间。土壤脲酶、酸性磷酸酶、硝酸还原酶、亚硝酸还原酶活性分别在1 175.09~1 332.93 μg·d-1·g-1、6.93~9.22 mg·d-1·g-1、19.42~25.52 μg·d-1·g-1、21.66~28.85 μg·d-1·g-1之间。主成分分析结果显示:绿竹林土壤前5个主分量累计方差贡献率达85.18%。绿竹林土壤中第1和第2主分量反应原始数据信息的61.15%,其中以全氮、全磷、碱解氮、有效磷、速效钾、全钾、有机质、脲酶的特征向量绝对值较大。土壤有效养分含量是该区绿竹土壤肥力最主要的限制性因素,土壤有机质含量也是影响竹林土壤肥力的重要指标。因此,绿竹林经营需根据需肥规律科学施肥,提高肥料利用率,避免面源污染和土壤环境质量恶化。Abstract: In order to fully understand the soil fertility status of theDendrocalamopsis oldhamiforests and scientifically evaluate the soil environmental quality,the soils of seven D. oldhamiforest sites in Pingyang County,Zhejiang Province were sampled,and the soil physical and chemical properties as well as soil enzyme activities were measured. The principal component analysis was conducted to assess the soil factors. The results showed that the soil bulk density of the bamboo forest was 1.37~1.51 g·cm-3,the moisture content was 24.33%~27.67%,and the porosity was 43.15%~48.08%. The contents of total nitrogen,total phosphorus and total potassium in the soil were 1.09~2.29 g·kg-1,0.38~0.61 g·kg-1 and 21.74~34.41 g·kg-1,respectively. The contents of soil alkali hydrolyzable nitrogen,available phosphorus and available potassium were 100.98~119.60 mg·kg-1,2.25~4.94 mg·kg-1 and 150.56~213.56 mg·kg-1,respectively. The activities of soil urease,acid phosphatase,nitrate reductase and nitrite reductase were in the ranges of 1 175.09~1 332.93 μg·d-1·g-1,6.93~9.22 mg·d-1·g-1,19.42~25.52 μg·d-1·g-1 and 21.66~28.85 μg·d-1·g-1,respectively. The principal component analysis showed that the first five principal components cumulatively contributed 85.18% soil properties of the D. oldhamiforest. The first and second principal components of D. oldhamiforest soil reflected 61.15% of the original data information,in which the absolute values of the feature vectors of total nitrogen,total phosphorus,alkali hydrolyzable nitrogen,available phosphorus,available potassium,total potassium,organic matter,and urease in the soil were relatively high. Therefore,in future management of D. oldhamiforests,it is necessary to continuously regulate the soil nutrient condition by scientific fertilization based on the growth requirements,and avoid non-point source pollution and soil environmental quality deterioration caused by bamboo fertilization.
-
[1] Ren D,Yu Z,Li W,et al. The effect of ages on the tensile mechanical properties of elementary fibers extracted from two sympodial bamboo species[J]. Industrial Crops&Products,2014,62:94-99. [2] 叶晶,陶立华,柯和佳,等.绿竹地上部营养元素的吸收、积累和分配特性[J].浙江农林大学学报,2015,32(4):545-550. [3] Song X,Zhou G,Jiang H,et al. Carbon sequestration by Chinese bamboo forests and their ecological benefits:assessment of potential,problems,and future challenges[J]. Environmental Reviews,2011,19(1):418-428. [4] 国家林业局.中国森林资源报告:第八次全国森林资源清查[M].北京:中国林业出版社,2014. [5] 曹先磊,吴伟光.不同地区毛竹林经营的经济效益与固碳能力分析——基于福建、浙江与江西的对比[J].林业资源管理,2015(1):64-70. [6] Sun J,Ding,ZQ,Gao Q,et al. Major chemical constituents of bamboo shoots (Phyllostachys pubescens):qualitative and quantitative research[J]. J Agri Food Chem.,2016,64(12):2498-2505. [7] 肖丽霞.绿竹笋采前品质相关影响因素和采后生理特性研究[D].北京:中国农业大学,2005. [8] Pánková H,Münzbergová Z,Rydlová J,et al. Co-adaptation of plants and communities of arbuscular mycorrhizal fungi to their soil conditions[J]. Folia Geobotanica,2014,49(4):521-540. [9] 樊星火,葛红艳,张参参,等.江西省生态公益林典型林分土壤肥力状况研究[J].北京林业大学学报,2018,40(11):84-92. [10] Wang F,Wang X,Song N. Biochar and vermicompost improve the soil properties and the yield and quality of cucumber (Cucumis sativusL.) grown in plastic shed soil continuously cropped for different years[J]. Agriculture,Ecosystems&Environment,2021,315:107425. [11] Bagchi R,Gallery R E,Gripenberg S,et al. Pathogens and insect herbivores drive rainforest plant diversity and composition[J]. Nature,2014,506:85-88. [12] Chang H T,Zhao J,Liu J N,et al. Changes in soil physico-chemical properties and related fractal features during conversion of cropland into agroforestry and grassland:A case study of desertified steppe in Ningxia[J]. Acta Prataculturae Sinica,2019,28(7):14-25. [13] Khalil H,Hossain M S,Rosamah E,et al. The role of soil properties and it's interaction towards quality plant fiber:A review[J]. Renewable and Sustainable Energy Reviews,2015,43:1006-1015. [14] 袁久坤,周英.利用取土钻改进环刀法准确测定土壤容重和孔隙度[J].中国园艺文摘,2014,30(3):25-26. [15] 刘世梁,傅伯杰,刘国华,等.我国土壤质量及其评价研究的进[J].土壤通报, 2008,37(1):137-143. [16] 申景昕,刘广路,范少辉,等.毛竹向撂荒地扩展过程中的土壤养分特征[J].林业科学,2020,56(10):26-33. [17] Lei Z S,Wu Z Q,Tian Y F,et al. Effects of environmental variations to main quality characters of the strong gluten wheat[J]. Acta Agriculturae Boreali-Sinica,2005,20(3):1-4. [18] Huang Y,Yang Q H,Li C H,et al. Effects of different soil texture on the yield and quality of high-oil corn[J]. Journal of Maize Sciences,2006,14(2):127-129.
点击查看大图
计量
- 文章访问数: 293
- HTML全文浏览量: 51
- PDF下载量: 82
- 被引次数: 0