共被期刊论文引用了3次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 有机物料对两种紫色土氮素矿化的影响显示文摘以猪粪沼渣(PM)、牛粪沼渣(CM)、污泥堆肥(SC)、农村生活垃圾堆肥(RWC1)、农村生活垃圾与污泥的堆肥产物(堆肥过程中添加20%的污泥,RWC2)为材料,采用室内恒温好气培养试验研究了不同有机物料施入酸性紫色土和石灰性紫色土后土壤氮矿化的差异.结果表明,不同有机物料有机氮组分含量及其占全氮比例的基本顺序为:氨基酸态氮>酸解未知氮>酸解铵态氮>非酸解氮>氨基糖态氮.添加有机物料显著提高了酸性紫色土的NH^+_4-N和NO^-_3-N含量,而石灰性紫色土中猪粪沼渣和污泥堆肥显著提高了NH^+_4-N的含量,牛粪沼渣却使其NO^-_3-N含量降低.牛粪沼渣对酸性紫色土氮矿化量的影响不显著,使石灰性紫色土的氮矿化量降低,其余4种有机物料均明显提高两种土壤的氮矿化量.相关分析表明土壤氮矿化量与有机物料中的氨基酸态氮和酸解铵态氮呈显著正相关,与有机物料的有机质含量和C/N呈显著负相关.上述结果说明有机物料对土壤氮素矿化的效应因土壤和有机物料的性质不同而异,特别是有机物料中的有机质含量、C/N以及有机氮组分. | 张名豪 卢吉文 赵秀兰 | 2016 | 环境科学2016，37，6： | 11 |
| 2 | Effects of the type of forest alteration on gross nitrogen mineralization in soils of southern India显示文摘Change in land-use practices can result in major shifts in the cycling of various elements,particularly nitrogen(N),which is prone to anthropogenic perturbations.For quantifying these shifts,accurate measurements of rates of biogeochemical transformations of N are needed.We used the(^(15)N) isotope dilution technique to understand the effects of the types of forest alteration on(N) transformation rates by comparing gross N mineralization and ammonium(NH_(4)^(+)) consumption rates in soils of a managed forest,an unmanaged forest,and a rubber plantation in Kerala,India.Overall,nitrate(NO_3~-) dominated soils of the managed and unmanaged forests,whereas soils in the rubber plantation showed relatively higher NH_(4)^(+) concentration.Total N(TN) and total organic carbon(TOC) concentrations were the highest under the rubber canopy(TN:1.49±0.02 mg N g^(-1);TOC:7.96±0.86 mg C g^(-1)).In soils of all three forest types,gross N mineralization rates were higher compared to NH_(4)^(+) consumption rates.Despite high TN and TOC concentrations,the rates of gross N mineralization and NH_(4)^(+) consumption were considerably lower in the rubber plantation(mineralization:1.08±0.08 mg N kg^(-1)d^(-1);consumption:0.85±0.09 mg N kg^(-1) d^(-)) compared to the managed(mineralization:3.71±0.35 mg N kg^(-1) d^(-1);consumption:2.20±1.41 mg N kg^(-1) d^(-1)) and unmanaged(mineralization:2.20±1.07 mg N kg^(-1) d^(-1);consumption:1.39±0.27 mg N kg^(-1) d^(-1)) forests.The lower NH_(4)^(+) consumption rates in the rubber plantation led to significantly higher(p<0.05) residence time of NH_(4)^(+)(~4 days) compared to the managed and unmanaged forests(<2 days),possibly contributing to acidification of rubber soils(pH~4.8).These results together suggest that replacement of naturally grown forests with a mono-cropped plantation such as rubber negatively impact rates of N transformation processes in tropical soils and imply that change in tree species composition of naturally grown forests can adversely affect soil microbial activity.We recommend intercropping these plantations with commercial crops to maintain soil microbial diversity and biogeochemical cycling for sustainable forest management. | Niharika Sharma Sanjeev Kumar | 2021 | Journal of Forestry Research2021，32，4： | 0 |
| 3 | 不同有机肥对豫中和滇西烟区土壤氮素矿化及酶活性的影响显示文摘为探索不同种类有机肥对豫中、滇西典型香型烟区植烟土壤氮素矿化动态及酶活性的影响,在等氮(100 mg/kg)投入和30℃条件下对施入不同有机肥(植物源有机肥、芝麻饼肥、生物炭有机肥)的两地植烟土壤进行室内培养,分析不同时期土壤氮素矿化参数及土壤酶活性的变化。不同有机肥均可提高土壤矿质氮含量及矿化速率,在培养前期(7 d),豫中、滇西烟区芝麻饼肥处理土壤矿质氮含量均最高,分别为66.40、108.53 mg/kg,而生物炭有机肥处理后期(7~28 d)矿化量较大且矿化速率较快。生物炭有机肥可以有效提高土壤脲酶、N-乙酰-β-D-葡萄糖苷酶活性,芝麻饼肥对蛋白酶、蔗糖酶活性有明显提升作用。相关分析结果表明,N-乙酰-β-D-葡萄糖苷酶活性与硝态氮、铵态氮、矿质氮含量呈极显著正相关关系,大部分酶活性两两间均呈极显著相关关系。结合不同烟区土壤的理化特性及施入有机肥后的土壤氮素矿化特征,在高有机质含量的滇西烟区土壤施入芝麻饼肥,可在提高土壤矿质氮含量的同时有效控制矿化速率,加强生物固持作用;在低有机质含量的豫中植烟土壤中添加生物炭有机肥可有效提升土壤氮素矿化能力,提高土壤矿质氮含量。 | 刘威 赵园园 陈小龙 韦建玉 李娟 谢天琪 史宏志 | 2023 | 河南农业科学2023，52，11： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员