, 2019 在实验室条件下,研究了生物质磺酸钙对荒漠沙土的改良作用。结果表明,沙土中添加2%生物质磺酸钙,土壤中有机质、全氮、速效钾、速效磷含量和土壤持水量均显著增加 ...
保雄伟 +3 more
core +2 more sources
Distribution Pattern of Cadmium in the Profile of Shallow Fissure Soil and Its Influencing Factors in Karst Areas with High Geological Background [PDF]
[Objective] To study the vertical distribution pattern of cadmium (Cd) in shallow karst fissure soil, analyze the impacts of various factors on the distribution of Cd in fissures, and provide a scientific basis for future research on the distribution ...
CAI Huayin +6 more
core +1 more source
Effects of Different Vegetation Restoration Measures on the Disintegration Characteristics of Eroded Degraded Land of Pinus massoniana in Red Soil Region [PDF]
[Objective] To investigate the characteristics of soil disintegration under different vegetation restoration measures in degraded land of Pinus massoniana, compare the improvement of soil disintegration in severely degraded P.
LIN Qiang +8 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
Content and distribution of unprotected soil organic carbon in natural and monoculture plantation forests of Castanopsis kawakamii in subtropical China [PDF]
, 2004 通过对福建三明格氏栲天然林及在其采伐迹地上营造的 33年生格氏栲人工林和杉木人工林土壤非保护性有机 C含量及分配的研究 ,结果表明 ,格氏栲天然林 0～ 10 0 cm土层内土壤有机 C贮量分别是格氏栲人工林和杉木人工林的 1.17倍和1.35倍 ,轻组有机 C贮量分别是后两者的 1.6 4倍和 2 .16倍 ,而颗粒有机 C贮量则分别是后两者的 1.6 0倍和 3.4 3倍 ,其土壤轻组有机 C和颗粒有机 C的分配比例亦显著高于后两者。不同林分间差异均以 0～ 10 cm土层为最大 ...
刘艳丽(福建农林大学林学院) +5 more
core
Progress Analysis and Development Prospects of Soil Ecological and Environmental Effects of Interlayer Construction [PDF]
[Objective] This study systematically summarized and analyzed the current application status, technical characteristics, and environmental benefits of interlayer construction in soil improvement, nutrient cycling, ecological restoration, and crop ...
CHEN Jihong +7 more
core +1 more source
Shuitu Baochi Xuebao, 2021 以贺兰山不同海拔植被下0—20，20—40 cm土层土壤为研究对象，分析不同粒径团聚体含量及团聚体稳定性随海拔升高的变化特征，探讨其与土壤理化性质之间的相关关系。结果表明：0—20 cm土层，0.25~0.053 mm团聚体为主要团聚体类型，随海拔增加，水稳性大团聚体（>0.25 mm）含量增加，高海拔>低海拔，较高含量的大团聚体和土壤养分是团聚体稳定的关键要素。
吴梦瑶 +6 more
doaj
Shuitu Baochi Xuebao, 2017 采用野外调查与室内分析相结合的方法，研究名山地区稻田植茶后土壤团聚体水稳性变化特征及其影响因素。结果表明：稻田及植茶后的土壤水稳性团聚体含量在各粒径及土层间表现不同，稻田、茶园5年和10年土壤水稳性团聚体含量总体上随着粒径的减小呈先降低后上升的趋势，茶园15年水稳性团聚体含量则随着粒径的减小逐渐增加。从不同土层来看，在0—20，20—40 cm土层中，随着稻田植茶年限的增加，土壤团聚体含量以＞2 mm粒径团聚体为主转变为以＜0.25 mm粒径团聚体为主，而在40—60 cm土层中，总体上＜0.25 ...
李欣雨, 夏建国, 田汶艳
doaj
Insist on the Strategy of Forestry Sustainable Developmnet [PDF]
, 1999 该文分析比较了前人在杉木林和火力楠林两种林分的林冠、枯枝落叶层、土壤结构与肥力、土壤微生物等因素保持水土方面的研究成果,从战略上提出了长泰县林业可持续发展对策。The paper analyzes and makes comparison among the research achievements in water and soil conservation by leaves, defoliation layer,soil structure and fertility, soil ...
史大林, 洪海征, 黄璜
core
Effects of Brackish Water with Different Sodium-Potassium Ratios on Soil Water-Salt Characteristics and Winter Wheat Growth [PDF]
[Objective] To study the effects of brackish water irrigation on soil water and salt characteristics and crop growth is helpful to guide the safe utilization of brackish water.
CHENG Yu +7 more
core +1 more source