筛选
科学数据
统计数据
共检索到6648条 ,权限内显示50条;
Winter Rainfall Crops
- 负责人：
- South African Environmental Observation Network
- 关键词：
- biomass potential degraded land erosion barren rock Agriculture Commercial cropping systems Socio-economic Economic activity Land Transformation
- DOI：
- doi:10.15493/bea.data.10000088
- 摘要：
- The dataset includes all field boundaries in the Western Cape province, with the associated winter crops. The digitising of the fields where don
Data from: Field-scale experiments reveal persistent yield gaps in low-input and organic cropping systems
- 负责人：
- Kravchenko, Alexandra N.
- DOI：
- doi:10.5061/dryad.gh90f5f
- 摘要：
- in southwest Michigan, we conducted a 6-y experiment to test the accuracy with which plot-scale crop-yield results can inform field-scale conclusions
Data from: The geomagnetic environment in which sea turtle eggs incubate affects subsequent magnetic navigation behavior of hatchlings
- 负责人：
- DOI：
- doi:10.5061/dryad.4gv6t
- 摘要：
- Loggerhead sea turtle hatchlings (Caretta caretta) use regional magnetic fields as open-ocean navigational markers during trans-oceanic migrations
Data from: Genetic diversity of oilseed rape fields and feral populations in the context of coexistence with GM crops
- 负责人：
- DOI：
- doi:10.5061/dryad.pc6sd
- 摘要：
- the genetic diversity of oilseed rape plants from fields and feral populations over 4 years in an agricultural landscape of 41 km2. We used exact
Data from: Complementary crops and landscape features sustain wild bee communities
- 负责人：
- Martins, Kyle T.
- 关键词：
- Apple bees blueberry community ecology complementarity ecosystem services landscape ecology raspberry wild pollinators
- DOI：
- doi:10.5061/dryad.841vq48
- 摘要：
- . Mass-flowering crops are only in bloom for a few weeks and unable to support bee populations that persist throughout the year. Farm fields and orchards
Data from: A field-based analysis of genetic improvement for grain yield in winter wheat cultivars developed in the us central plains from 1992
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.v2j34j1
- 摘要：
Data from: Pyroelectricity and field induced spin-flop in (4-(Aminomethyl)pyridinium)2MnCl4?2H2O
- 负责人：
- DOI：
- doi:10.5061/dryad.vmcvdncpt
- 摘要：
- . The pyroelectric and the ferroelectric property was attributed to the strain caused by defects. Temperature dependent magnetic curves and the M-H curve shows tha
Crop harvest, Chogoria, Kenya, ca.1930
- 负责人：
- DOI：
- doi:10.25549/impa-c123-80618
- 摘要：
- Exterior view of several indigenous people, with large bunches of bananas, waiting outside a storage building which has a hook weighing scale
Data from: Landscape-scale interactions of spatial and temporal cropland heterogeneity drive biological control of cereal aphids
- 负责人：
- Baillod Bosem, Aliette
- 关键词：
- aphid parasitism crop rotation edge effect field margin field size landscape composition landscape configuration predator-prey ratio spatial heterogeneity temporal heterogeneity
- DOI：
- doi:10.5061/dryad.2tf5j
- 摘要：
- . Arthropods were monitored at three distances (0, 10, 30m) from field borders. Fields were embedded in landscapes of 1-km diameter selected along orthogonal
Data from: Field swimming behavior in largemouth bass deviates from predictions based on economy and propulsive efficiency
- 负责人：
- DOI：
- doi:10.5061/dryad.0qr68
- 摘要：
- ted field speeds that were generally below the range predicted to minimize their COT. This may reflect speed modulation to meet competing functional demands
