Results 11 to 20 of about 2,306 (150)
Our results indicate that defoliation and fertilisation, two common grassland perturbations, have contrasting impacts on root traits of grassland plant species, with direct and indirect short‐term consequences for a wide range of soil abiotic and biotic properties that underpin ecosystem functioning.
Yan Liu +2 more
wiley +1 more source
Abstract Successful use of stable isotopes (δ2H and δ18O) in ecohydrological studies relies on the accurate extraction of unfractionated water from different types of soil samples. Cryogenic vacuum distillation (CVD) is a common laboratory‐based technique used for soil water extraction; however, the reliability of this technique in reflecting soil ...
Bin Yang +14 more
wiley +1 more source
Abstract Insights into declines in ecosystem resilience and their causes and effects can inform preemptive action to avoid ecosystem collapse and loss of biodiversity, ecosystem services, and human well‐being. Empirical studies of ecosystem collapse are rare and hampered by ecosystem complexity, nonlinear and lagged responses, and interactions across ...
David A. Keith +8 more
wiley +1 more source
Background. With the continuous in‐depth research of Chinese medicine constitution (tizhi) and the continuous expansion of cross research with new disciplines, internationalization will become the future trend of Chinese medicine constitution (tizhi).
Siying Dong +7 more
wiley +1 more source
Abstract Climate change is a world‐wide threat to biodiversity and ecosystem structure, functioning and services. To understand the underlying drivers and mechanisms, and to predict the consequences for nature and people, we urgently need better understanding of the direction and magnitude of climate change impacts across the soil–plant–atmosphere ...
Aud H. Halbritter +116 more
wiley +1 more source
Relationship Between Soil Factors and Enzyme Activities in Mangrove Wetland of Dongzhai Port [PDF]
[Objective] Mangroves are part of a wetland ecosystem found along tropical and sub-tropical coastlines. The soil active organic carbon composition, soil enzyme activity, and the interaction between them, under different plant community conditions was ...
Chen Xiaohua +4 more
core +1 more source
试验和分析结果表明 ,退化红壤主要肥力因素的恢复与农用物质的投入和土壤本身理化性质均存在明显的关系。随着物质投入量的增加 ,土壤肥力质量的恢复也逐渐加快。在自然条件下 ,土壤肥力因素的恢复主要与土壤本身属性有关 ,在肥力恢复过程中 ,土壤有机质的增加量与土壤本身有机质含量呈抛物线关系 ,约当土壤有机质含量在 2 0 g/ kg时 ,增幅最大 ;在一定的含氮范围内 ,土壤氮素的增加与土壤全氮含量呈正相关 ;而速效钾的增加量与土壤本身速效钾含量呈反相关 ...
章明奎 徐建民
doaj +2 more sources
为解决区域土壤质地类型针对性氮肥施用问题,在轻壤土和黏壤土上分别设置不施氮肥,氮肥基追比3:7,4:6,5:5,6:4和7:3处理,研究小麦产量、水氮利用效率以及土壤含水量、贮水量、NH4+-N、NO3--N动态变化规律。结果表明:轻壤质土壤氮肥基追比4:6的处理小麦产量、水分利用效率、氮肥生产效率最高分别为8 265.3 kg/hm2,27.6 kg/(hm2·mm),34.4 kg/kg。黏壤质土壤氮肥基追比5:5的处理小麦产量、水分利用效率、氮肥生产效率最高分别为8 363.2 kg/hm2,28.
袁浩 +7 more
doaj
Soil Quality Assessment of Five Typical Forest Stands in the Dianchi Lake Basin based on MDS [PDF]
[Objective] Soil quality is a critical indicator of ecosystem health and sustainable land management. [Methods] Key soil quality indicators (e.g., organic matter, total nitrogen, available nitrogen, capillary porosity, and pH) were identified through ...
HUANG Shuai +4 more
core +1 more source
在贵阳市乌当区采集了9种母质(岩)上发育的土壤样品763个,分别测定了土壤的主要理化性质和主要重金属元素含量,通过对比分析表明不同母质(岩)发育的土壤理化性质和重金属含量都具有很大的差异。土壤理化性质的差异性主要表现为:石灰岩、红色粘土、老风化壳和页岩发育的土壤质地粘重。砂岩发育的土壤质地较轻,钙质紫色砂页岩、白云岩、砂页岩和河流冲积物发育的土壤质地适中;石灰岩、白云岩和钙质紫色砂页岩发育的土壤pH值为中性至微碱性。河流冲积物发育的土壤pH值为中性,其余5种母质(岩)发育的土壤pH值为酸性至强酸性 ...
何腾兵 +5 more
doaj +2 more sources

