Biochemical characters of forest soils at Wuyishan Mountain. [PDF]
, 1999 研究了武夷山自然保护区森林土壤生化特性.结果表明，不同生境土壤呼吸作用、纤维分解作用和硝化作用等3项生化强度有明显差异，先峰岭（常绿阔叶林）＞大竹岚（毛竹林）.同一生境中的不同小生境3项生化强度的差异也很显著，尤其是呼吸作用强度，落叶层＞腐殖层＞土壤层；纤维分解作用强度，腐殖层＞落叶层＞土壤层；硝化作用强度，土壤层＞落叶层＞腐殖层.无论那一种生境3项生化强度之间，呼吸作用强度与纤维分解作用强度有一定相关性，而硝化作用强度与前两项未显示相关.不同生境土壤蔗糖酶、纤维素酶和蛋白酶等活性显著不同，大竹岚 ...
庄铁诚, 张瑜斌, 林鹏, 陈仁华
core
[Determination of organophosphate diesters in facility vegetable soils using ultra-high performance liquid chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]
Se Pu, 2023 Liu M +7 more
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Shuitu Baochi Xuebao, 2017 以丹江口库区五龙池小流域玉米黄棕壤为例，利用原位矿化试验，通过与横垄无覆膜土壤比较，研究横垄覆膜对土壤净氮矿化的影响。结果表明：玉米苗期中期和拔节期前期，横垄覆膜土壤净氮矿化量与无覆膜土壤相比分别降低7.8%～57.0%和2.2%～52.8%；玉米拔节期后期、抽穗期和成熟期，横垄覆膜土壤净氮矿化量比无覆膜土壤分别提高352.9%～703.3%，52.5%～311.0%和15.2%～334.8%。横垄覆膜土壤净氮矿化量在玉米苗期、拔节期、抽穗期和成熟期与含水量、温度和全氮间均存在较强度关联关系（0.6 ...
于兴修 +6 more
doaj
[Determination of 26 herbicide residues in soil， sediment， and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuZhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
europepmc +1 more source
[Evaluation of Gradient-Variant Quantum Dot Fluorescence Technology for Rapid Detection of <i>Brucella</i>]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi J +9 more
europepmc +1 more source
Shuitu Baochi Xuebao[目的] 探究干旱半干旱地区春季冻融时期沙漠生态系统的土壤呼吸变化规律及其与环境因子的关系,为干旱半干旱地区沙地生态系统的碳收支提供数据支撑。[方法] 在内蒙古鄂尔多斯市达拉特旗沙柳林木种质资源库,以沙柳为研究对象,采用Li-6800土壤碳水通量测量室测定在无雪处理下,未整地未平茬(ww)、未整地平茬(wp)、整地未平茬(zw)、整地平茬(zp)的土壤呼吸速率,并同步测定大气温度和土壤温湿度。[结果] 冻融交替时期土壤呼吸的日变化规律呈单峰变化趋势,峰值出现在10:00—12:00 ...
王继璇 +8 more
doaj
[Effects of lunar soil simulant and Earth soil on lung injury in mice]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanGong X +8 more
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[Determination of polychlorinated naphthalenes in soil using accelerated solvent extraction-molecular sieves solid-phase extraction coupled with gas chromatography-tandem mass spectrometry]. [PDF]
Se Pu, 2022 Jin J +6 more
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[Determination of trace polychlorinated biphenyls in environmental water samples by solid-phase microextraction-gas chromatography-tandem mass spectrometry using carbon nanotube composite microspheres materials]. [PDF]
Se PuSong XL +4 more
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