Land management: data availability and process understanding for global change studies

Global Change Biology, Год журнала: 2016, Номер 23(2), С. 512 - 533

Опубликована: Июль 22, 2016

In the light of daunting global sustainability challenges such as climate change, biodiversity loss and food security, improving our understanding complex dynamics Earth system is crucial. However, large knowledge gaps related to effects land management persist, in particular those human-induced changes terrestrial ecosystems that do not result land-cover conversions. Here, we review current state ten common activities for their biogeochemical biophysical impacts, level process data availability. Our shows ca. one-tenth ice-free surface under intense human management, half medium one-fifth extensive management. Based on review, cluster these into three groups: (i) which sets are available, a good base exists (cropland harvest irrigation); (ii) sufficient but robust lacking (forest harvest, tree species selection, grazing mowing N fertilization); (iii) practices with severe concomitant an unsatisfactory (crop artificial wetland drainage, tillage fire crop residue element harvest). Although identify multiple impediments progress, conclude status availability advance incorporating in, example, or dynamic vegetation models order provide systematic assessment role system. This contributes strategic prioritization research efforts across disciplines, including research, ecological modelling.

Язык: Английский

---

Sampling frequency affects estimates of annual nitrous oxide fluxes

Scientific Reports, Год журнала: 2015, Номер 5(1)

Опубликована: Ноя. 2, 2015

Abstract Quantifying nitrous oxide (N 2 O) fluxes, a potent greenhouse gas, from soils is necessary to improve our knowledge of terrestrial N O losses. Developing universal sampling frequencies for calculating annual fluxes difficult, as are renowned their high temporal variability. We demonstrate daily was largely required achieve within 10% the ‘best’ estimate 28 datasets collected three continents—Australia, Europe and Asia. Decreasing regularity measurements either under- or overestimated with maximum overestimation 935%. Measurement frequency lowered using strategy based on environmental factors known affect variability, but still more than once week. Consequently, uncertainty in current global budgets associated upscaling field-based can be decreased significantly adequate frequencies.

Язык: Английский

---

Application effects of coated urea and urease and nitrification inhibitors on ammonia and greenhouse gas emissions from a subtropical cotton field of the Mississippi delta region

The Science of The Total Environment, Год журнала: 2015, Номер 533, С. 329 - 338

Опубликована: Июль 11, 2015

Язык: Английский

---

Impact of nitrification inhibitor (DMPP) on soil nitrous oxide emissions from an intensive broccoli production system in sub-tropical Australia

Soil Biology and Biochemistry, Год журнала: 2014, Номер 77, С. 243 - 251

Опубликована: Июль 10, 2014

Язык: Английский

---

Nitrogen nutrition in cotton and control strategies for greenhouse gas emissions: a review

Environmental Science and Pollution Research, Год журнала: 2017, Номер 24(30), С. 23471 - 23487

Опубликована: Сен. 22, 2017

Язык: Английский

---

Influence of different nitrogen rates and DMPP nitrification inhibitor on annual N2O emissions from a subtropical wheat–maize cropping system

Agriculture Ecosystems & Environment, Год журнала: 2014, Номер 186, С. 33 - 43

Опубликована: Фев. 7, 2014

Язык: Английский

---

Optimizing irrigation management sustained grain yield, crop water productivity, and mitigated greenhouse gas emissions from the winter wheat field in North China Plain

Agricultural Water Management, Год журнала: 2023, Номер 290, С. 108599 - 108599

Опубликована: Ноя. 21, 2023

Climate change caused by increasing greenhouse gas (GHG) emissions has led to frequent extreme weather events, which seriously threaten sustainable agricultural production. Therefore, it is essential optimize proper irrigation management improve the grain yield, crop water productivity (WPc), economic (EWPc), and lower global warming potential (GWP) GWP Intensity (GWPI). The effect of scheduling methods on GHG remains largely unknown, even though this knowledge management. To address gap, a field experiment was carried out in North China Plain (NCP) for three winter wheat seasons measure influence different WPc, EWPc, GWP, GWPI. Irrigation including 50%, 60%, 70% capacity (FC) were kept main plots methods, sprinkler, drip, flood sub-plots. results revealed that relative sprinkler at 60% FC, drip FC significantly (p < 0.05) improved yield 4.89–7.52%, WPc 1.0–5.4%, EWPc 1.1–5.49%, 7.47–9.34%, GWPI 10.92–15.23%. Compared with increased 5.34–6.81%, 5.65–15.1%, 5.73–15.12%, 10.36–15.16%, 16.22–19.40%. Technique order preference similarity an ideal solution (TOPSIS) presented compared scheduling, provides best optimal balance combined suggested sustained mitigated NCP.

Язык: Английский

---

Strategic tillage in conservation agricultural systems of north-eastern Australia: why, where, when and how?

Environmental Science and Pollution Research, Год журнала: 2017, Номер 25(2), С. 1000 - 1015

Опубликована: Апрель 7, 2017

Язык: Английский

---

Controlled traffic farming effects on soil emissions of nitrous oxide and methane

Soil and Tillage Research, Год журнала: 2017, Номер 176, С. 18 - 25

Опубликована: Ноя. 1, 2017

Язык: Английский

---

Optimizing tillage method and irrigation schedule for greenhouse gas mitigation, yield improvement, and water conservation in wheat–maize cropping systems

Agricultural Water Management, Год журнала: 2021, Номер 248, С. 106762 - 106762

Опубликована: Янв. 28, 2021

Язык: Английский

---