Amending soils with biochar, a pyrolyzed organic material, is an emerging practice to potentially increase plant available water and reduce the risks associated climatic variability in traditionally-rainfed tropical agricultural systems. To investigate impacts of biochar amendment on soil storage relative non-amended soils, we performed upland rice field experiment seasonally dry region Costa R...

[1] Groundwater recharge is critical in semiarid regions where aquifers are currently being mined for intensive irrigation. Land use management related to agriculture can be used to control partitioning of water near the land surface and to potentially manage water resources. The purpose of this study was to quantify impacts of deep plowing in rainfed (nonirrigated) agriculture in a semiarid re...

Baligang is a Neolithic site on a northern tributary of the middle Yangtze and provides a long archaeobotanical sequence from the Seventh Millennium BC upto the First Millennium BC. It provides evidence for developments in rice and millet agriculture influenced by shifting cultural affiliation with the north (Yangshao and Longshan) and south (Qujialing and Shijiahe) between 4300 and 1800 BC. Th...

(eds M.C.S. Wopereis et al.) 35 Upland environments are situated at the high end of the toposequence, where rice depends solely on rainfall as the water table is out of the reach of rice roots for much of the growing season. At the lower end of the toposequence, rice plants can reach the water table or profit directly from flood water. Along the toposequence, interactions exist between environm...

The Khabour River, southernmost tributary to the Euphrates, is a case study in the complexity of managing riparian resources. The river is located entirely within Syria but the watershed includes portions of Turkey and Iraq. Indeed, on account of the steep southward precipitation gradient in the region, the spring-fed Khabour is recharged almost exclusively by precipitation that falls on Turkis...

Rubber cultivation is primarily rainfed agriculture, which means that water supplies are not stable in most rubber cultivated areas. Therefore, improving the use of trees through fertilization management seems to be a breakthrough for enhancing growth and latex yield carrying out intensive agriculture. However, relationships among nutrient status trees, their uptake, soil resources, including n...

[1] This study quantifies, spatially explicitly and in a consistent modeling framework (Lund-Potsdam-Jena managed Land), the global consumption of both ‘‘blue’’ water (withdrawn for irrigation from rivers, lakes and aquifers) and ‘‘green’’ water (precipitation) by rainfed and irrigated agriculture and by nonagricultural terrestrial ecosystems. In addition, the individual effects of human-induce...

The paper demonstrates the application of a new water accounting plus (WA+) framework to produce information on depletion of water resources, storage change, and land and water productivity in the Indus basin. It shows how satellite-derived estimates of land use, rainfall, evaporation (E), transpiration (T ), interception (I ) and biomass production can be used in addition to measured basin out...

This article aimed to estimate the loss of water associated with food and waste in Brazil 2013. Data from Food Agriculture Organization (FAO) United Nations (UN) on balance waste, as well Water Footprint (WF) agricultural products available at Network (WFN) were used. Results show that reaches 49 million metric tons per year, compromising a total 87 billion cubic meters water, which is higher t...